[00:00] <Lunar_Lander> yeah
[00:00] <Lunar_Lander> I just noticed something
[00:00] <Lunar_Lander> when it came down to 4 satellites, it momentarily showed "2D fix" instead of "3D fix"
[00:02] <Morseman> Most GPS units do that - less accurate possition data
[00:02] <Morseman> Also look out for DOP value
[00:02] <Lunar_Lander> what exactly is DOP?
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[00:03] <Morseman> http://www.cmtinc.com/gpsbook/chap7.html
[00:04] <Lunar_Lander> thanks :)
[00:04] <Morseman> Dilution of Precision - If all sats are directly over head (none near horizon) accuracy is lower
[00:05] <Lunar_Lander> yeah
[00:06] <Morseman> OK - Time for bed said Zebedee...
[00:06] <Darkside> but when they are near the horizon, there is also more error due to the signals passage through the ionosphere
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[00:09] <Lunar_Lander> yeah
[00:09] <Lunar_Lander> btw
[00:10] <Lunar_Lander> my slovenian friend asks how many meters fluctuation do we have when we got the reading 52°15.80xx and xx oscillates
[00:10] <Lunar_Lander> i.e. what is the significance of these two digits
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[00:12] <SpeedEvil> A degree is 100klm
[00:12] <SpeedEvil> (ish)
[00:12] <SpeedEvil> A minute of a degree is 1/60th - or 1.5km
[00:12] <Lunar_Lander> ok
[00:13] <SpeedEvil> so .80xx is 1.7m or so
[00:13] <Lunar_Lander> thanks
[00:14] <SpeedEvil> (more north-south than east-west of course)
[00:14] <Lunar_Lander> yeah
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[00:19] <Lunar_Lander> thanks SpeedEvil
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[00:28] <Lunar_Lander> anyone went on youtube recently?
[00:28] <Lunar_Lander> they got a light switch now
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[02:23] <griffonbot> Received email: "[UKHAS] Some ideas for an unusual balloon and downlink"
[02:38] <griffonbot> Received email: "[UKHAS] Novel downlink ideas"
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[02:52] <griffonbot> Received email: "[UKHAS] GPS questions - Lassen IQ? And UARTs in general?"
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[04:30] <natrium42> lol
[04:30] <natrium42> i mean, hi
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[06:19] <griffonbot> Received email: Allen Sklar "RE: [UKHAS] GPS questions - Lassen IQ? And UARTs in general?"
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[06:25] <UpuMobile> morning
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[06:27] <UpuMobile> morning daveake
[06:27] <daveake> Morning UpuMobile
[06:27] <daveake> How's the TravelLodge breakfast?
[06:28] <daveake> And when do I need to get the kettle on?
[06:28] <UpuMobile> they do breakfast ?
[06:28] <daveake> Pass
[06:28] <UpuMobile> I'll grab a shower and set off shortly
[06:28] <daveake> okeydokey
[06:28] <UpuMobile> I'll be there for 8.30
[06:28] <daveake> np
[06:28] <UpuMobile> run any predictions ?
[06:28] <daveake> yep
[06:29] <daveake> Not much different
[06:29] <daveake> Chat when you get here
[06:29] <UpuMobile> ok
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[07:00] <pjm__> good morning
[07:08] <edmoore> Morning pjm__
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[08:23] <daveake> morning
[08:23] <daveake> Upu here
[08:23] <daveake> we are aiming to launch about 12:00 midday UK time
[08:23] <number10> has daveake got you a bacon sarnie?
[08:24] <daveake> not yet
[08:24] <daveake> just making knots
[08:24] <daveake> and finishing payloads
[08:24] <number10> remember to take some pics - and tell daveake not to wear his nylon underpants
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[08:25] <daveake> was easy to find his house, Buzz light year party balloon outside :)
[08:26] <number10> lol
[08:26] <futurity> Morning. Is there a flight plan for UPU's launch at 11am? Just need to setup the aerial for it now
[08:26] <daveake> and for the record 434.200 jams Audi keyfobs
[08:26] <fsphil> yay
[08:26] <daveake> morning futurity we are aiming for 12:00 midday
[08:27] <number10> 434.075 jams ford
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[08:27] <futurity> daveake: Midday cool. Do you know which direction it'll be heading in? You are directly south west of me, but want to accommodate the direction of travel
[08:28] <daveake> south east
[08:28] <daveake> South east Guilford
[08:29] <futurity> Thanks I'll point the aerial at a point half way between the two
[08:29] <gonzo__> any of the picochu team on here ?
[08:30] <fsphil> picochu team is pretty much nigeys
[08:32] <daveake> Lassen has lock. That's an event
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[08:38] <gonzo__> anyone have a mobile number for nigeys?
[08:38] <gonzo__> need to get an address off him to post his payload back
[08:39] <Deaney_Mobile> Good work gonzo__!
[08:40] <gonzo__> ir was a fun recovery
[08:40] <Deaney_Mobile> Any trees involved?
[08:40] <gonzo__> another 20ft and there would have been!
[08:41] <Deaney_Mobile> Lucky!
[08:41] <daveake> Buzz has lock, yippee :)
[08:41] <daveake> Took his time!
[08:42] <daveake> I think "time till lock" is an inverse square function of time till launch
[08:42] <gonzo__> prop to patience
[08:42] <gonzo__> new proverb: 'a watched gps doesn't lock'
[08:44] <daveake> exactly!
[08:44] <Deaney_Mobile> We are just arriving back at the SHARP lz from yesterday. Think we've got some climbing to do!
[08:45] <daveake> Is it OK for us to delete the tracker data for SHARP?
[08:45] <daveake> The tracker screen is going to be a bit full otherwise!
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[09:00] <Deaney_Mobile> daveake: Should be fine! The SHARP boys say that's ok!
[09:02] <daveake> Cool, about to zap then
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[09:07] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Novel downlink ideas"
[09:07] <daveake> AVA online too now
[09:09] <Darkside> daveake: ava is pretty cold, eh
[09:10] <daveake> just testing payloads then will be heading to launch site soon
[09:10] <daveake> temp sensor not plugged in
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[09:14] <Deaney_Mobile> Yeah, so it's well up the tree...
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[09:16] <fsphil> if there's one thing trees are good at, its holding payloads
[09:16] <fsphil> in my case I had to get a 10m pole, with a little hook knife on the end
[09:16] <fsphil> got the knife over each payload string, pulled down and cut them
[09:16] <fsphil> took about 2 hours
[09:21] <jonsowman> radio set up
[09:21] <jonsowman> :)
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[09:25] <Deaney_Mobile> Trying a catapult between two trees at the moment...
[09:25] <fsphil> we need a live webcam Deaney_Mobile :)
[09:25] <mfa298> Deaney_Mobile: Rescueable? and any pics ?
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[09:26] <Deaney_Mobile> mfa298: Not sure. Its pretty high... Pics shortly...
[09:27] <jonsowman> is the batc stream working for anyone else?
[09:27] <Deaney_Mobile> http://t.co/Oj4a1eo9
[09:28] <jonsowman> Deaney_Mobile: what's your involvement with sharp btw?
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[09:29] <Deaney_Mobile> jonsowman: Just a friend. Doing some video for them today. Should have some stuff up later this week...
[09:29] <jonsowman> cool :)
[09:30] <mfa298> Deaney_Mobile: Just tell Rich not to break that catapult like the last one he played with :P
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[09:30] #highaltitude: mode change '+o jonsowman' by ChanServ!ChanServ@services.
[09:30] <Deaney_Mobile> This one is his brothers... Little bit bigger too!
[09:32] <mfa298> so I see, That just means it's more painful ;)
[09:32] Topic changed on #highaltitude by jonsowman!jonsowman@kryten.hexoc.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk - Ava/Buzz/Cloud launch 31/03/12 ~1100GMT from Brightwalton, UK
[09:32] #highaltitude: mode change '-o jonsowman' by ChanServ!ChanServ@services.
[09:33] <Deaney_Mobile> True...
[09:34] <mfa298> liking the getting serious version.
[09:35] <jonsowman> is it commonland?
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[09:36] <Deaney_Mobile> jonsowman: No but we are with the landowners.
[09:36] <Deaney_Mobile> http://t.co/xKfHfDM2
[09:36] <jonsowman> cool
[09:37] <jonsowman> lol
[09:37] <jonsowman> nice
[09:37] <jonsowman> when's the next launch?
[09:38] <mfa298> think they want to launch today if it can be recovered in time.
[09:40] <jonsowman> ok
[09:41] <Deaney_Mobile> The parachute is in one tree and the payload in another. Currently trying to fire a cricket ball with string attached over the top!
[09:42] <Deaney_Mobile> Pic of the chute. http://campl.us/ivWx
[09:42] <jonsowman> we tried that once
[09:42] <jonsowman> it didn't work
[09:42] <jonsowman> ended up getting a tree surgeon to get it down, £50
[09:42] Action: mfa298 wonders how much stuff SHARP can lose in a tree
[09:43] <Deaney_Mobile> We have a climber with us so I think he is plan B... Might lose him in a tree!
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[09:43] <jonsowman> you'll have to get another climber to get the first climberr
[09:43] <fsphil> mine was similar, parachute in one tree payload in another
[09:43] <jonsowman> just end up with a tree full of people
[09:44] <mfa298> I'm guessing thats Matt (looked a bit like it in the Pictures)
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[09:46] <Deaney_Mobile> mfa298: Yes. He is tightening the catapult...
[09:47] <Deaney_Mobile> Duct tape is involved...
[09:47] <mfa298> yeah, don't lose him.
[09:47] <jonsowman> standard
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[09:47] <mfa298> Ah the standard
[09:48] <mfa298> although i don't see any cable ties.
[09:49] <Deaney_Mobile> Not yet...
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[09:55] <Deaney_Mobile> Two of them up now... http://t.co/TKmFiBGD
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[09:56] <UpuMobile> hola
[09:56] <UpuMobile> at launch site
[09:57] <jonsowman> morning UpuMobile
[09:57] <jonsowman> batc stream going to be running?
[09:57] <SpeedEvil> Good luck!
[09:57] <number10> if you get the chance UpuMobile can you give us approx dial frequencies
[09:58] <UpuMobile> sure
[09:58] <UpuMobile> lived video up
[09:58] <UpuMobile> if someone can confirm
[09:58] <jonsowman> just a white screen here...
[09:58] <jonsowman> i've never tried it before on osx/chrome though
[09:59] <UpuMobile> try direct via batc
[09:59] <jonsowman> will do
[09:59] <navrac> link to video?
[10:00] <jonsowman> UpuMobile: that's working, thanks
[10:00] <jonsowman> navrac: visit
[10:00] <jonsowman> http://www.batc.tv/ click Member streams and select 2E0UPU.
[10:00] <SpeedEvil> Deaney_Mobile: I feel that should have a message on that. 'Don't do balloons. They make you high'
[10:01] <Deaney_Mobile> SpeedEvil: Lol
[10:01] <number10> someone is there with shorts must be eroomde
[10:01] <SpeedEvil> UpuMobile: I see a video stream
[10:02] <UpuMobile> it is eroomde
[10:03] <number10> yes, I recognised the shorts ;)
[10:03] <number10> who else apart from you and daveake UpuMobile ?
[10:06] <UpuMobile> lots of daveake's friends
[10:07] <number10> I just defaced a penny to stick some radials on to my magmount so I can track two
[10:09] <Bob_G8NSV> got you all on the video stream!
[10:09] <fsphil> I first read that as "I just defaced a pony" ...
[10:10] <Bob_G8NSV> good luck with the launch, off to put the new colinear up in the loft now ready
[10:10] <jonsowman> you and ponies fsphil :P
[10:10] Laurenceb_ (~Laurence@host86-177-56-31.range86-177.btcentralplus.com) left irc: Ping timeout: 276 seconds
[10:10] <fsphil> it's not me jonsowman, blame Darkside and hibby :)
[10:10] <jonsowman> lol
[10:12] wrockets (027d237b@gateway/web/freenode/ip. joined #highaltitude.
[10:13] <number10> lol
[10:14] wrockets (027d237b@gateway/web/freenode/ip. left #highaltitude.
[10:17] Graham_G3VZV_ (5acb6cdb@gateway/web/freenode/ip. joined #highaltitude.
[10:17] Graham_G3VZV (5acb6cdb@gateway/web/freenode/ip. left irc: Quit: Page closed
[10:18] <navrac> builders bum daveake
[10:19] <number10> cant beleive daveake is drinking beer this time of morning ;)
[10:20] <Deaney_Mobile> We've hooked the payload with a climbing rope. Now just waiting for a blanket to catch it... Fingers crossed!
[10:20] <number10> take a video as the last one was very funny
[10:20] <jonsowman> let's hope it goes better than the cutdown test
[10:22] Action: mfa298 wonders if it's worth bothering with the blanket based on last time
[10:22] <Deaney_Mobile> http://t.co/Kg141Mxf
[10:23] <Deaney_Mobile> number10: Video is rolling!
[10:24] <number10> great
[10:24] <Randomskk> what're the details for today?
[10:24] <Randomskk> ava/buzz/cloud in 35min ish?
[10:24] <jonsowman> Randomskk: https://groups.google.com/forum/?fromgroups#!topic/ukhas/VgOrzFaVoLI
[10:25] <Randomskk> ta
[10:25] Action: Randomskk tunes up
[10:25] <Randomskk> gonna get my ass handed to me by ael though no doubt
[10:25] <Randomskk> good sodding position
[10:25] Action: Randomskk contemplates going to ml&s to buy colinear
[10:26] <number10> cloud ava up first 434.650 434.075, and then buzz 434.2
[10:26] <Randomskk> cool
[10:26] <Randomskk> ta
[10:26] <UpuMobile> Randomskk 37km
[10:26] <fsphil> this isn't just a colinear, this is an ml&s colinear
[10:26] Action: Randomskk programs in radio
[10:26] <jonsowman> fsphil: lol
[10:26] <UpuMobile> ish
[10:26] <jonsowman> :D
[10:26] <Randomskk> fsphil: :D
[10:26] <Randomskk> UpuMobile: :o cool
[10:26] G8DSU (~chatzilla@cpc7-mort5-2-0-cust126.19-2.cable.virginmedia.com) joined #highaltitude.
[10:26] <Randomskk> though seriously I wonder if I could/shoul
[10:27] <fsphil> good luck with the flight! I suspect I'll be away before the signal gets here
[10:27] <Randomskk> they're not far from here
[10:27] <jonsowman> Randomskk: i think the watson W50 is like £60-70?
[10:27] <Randomskk> open until 4.30 saturday
[10:27] <jonsowman> where are they?
[10:27] <Randomskk> chertsey
[10:28] <jonsowman> oh very near then
[10:28] <Randomskk> I don't see watson on their antenna mftr list
[10:28] <Randomskk> only comet and diamond actually: http://www.hamradio.co.uk/aerials-amateur-antennas-vhf-uhf-base-antennas-vertical-antennas-pc-456.php
[10:28] <jonsowman> radioworld do them, seems to be a popular one
[10:29] <Randomskk> yea
[10:30] <Randomskk> radioworld are not a quick car drive away
[10:30] <Randomskk> wish I was insured on the car atm
[10:30] <Randomskk> anyone around have any thoughts on diamond or comet colinears?
[10:31] <fsphil> I've been using a diamond
[10:31] <fsphil> works a treat
[10:31] <fsphil> X-50
[10:32] OZ1SKY_Brian (~Brian@x1-6-20-4e-7f-c8-44-7a.k599.webspeed.dk) joined #highaltitude.
[10:32] <Randomskk> ML&S only have the X-50N in stock apparently, -50 is out, but I dunno if there's any difference
[10:32] <mfa298> I've got a comet gp15 which I've used for a few things and it's been pretty good
[10:32] <fsphil> only difference is the N plug Randomskk, the X-50 has a SO-258 thingy
[10:32] <mfa298> but dont have anything to compare it with.
[10:32] <Deaney_Mobile> Rope slipped off the payload. About 5m lower now though. Sending up our climber / monkey with a gopro!
[10:32] <Randomskk> ah poop
[10:32] <fsphil> so the X-50N is better
[10:33] <Randomskk> 'better'
[10:33] <Randomskk> my radio is so239
[10:33] <jonsowman> just grab an adaptor
[10:33] <fsphil> well anything that doesn't have so239 is better
[10:33] <jonsowman> in fact get two, CUSF need another one
[10:33] <Randomskk> heh
[10:33] <mfa298> 5m in almost 2 hours, that's a slow descent rate.
[10:34] <jonsowman> lol
[10:34] <Randomskk> oh yea they have them in stock £4.60 for the SO239 to N
[10:34] <Randomskk> hmmmm
[10:34] <Randomskk> I could make this happen
[10:34] <Randomskk> I need some PL259 patch too
[10:34] <Randomskk> I have a length of coax and two PL259s though
[10:34] <Randomskk> I could solder them on at last
[10:34] <jonsowman> hah i remember you getting those
[10:34] <jonsowman> some time ago...
[10:35] <OZ1SKY_Brian> are the winds most of the time south southeast in England?
[10:35] <griffonbot> Received email: "Re: [UKHAS] GPS questions - Lassen IQ? And UARTs in general?"
[10:35] <fsphil> you could cut the end of the pl259 patch, and put an N on there
[10:35] <jonsowman> OZ1SKY_Brian: anywhere between northeast to southeast roughly
[10:36] <jonsowman> mostly anyway
[10:36] <fsphil> my setup is basically the opposite, PL259 on the roof and N into the radio
[10:36] <OZ1SKY_Brian> jonsowman ok i just notis most of the flights are going in that dir
[10:36] <jonsowman> yep
[10:36] <pjm__> morning , what are todays freqs ?
[10:37] <number10> cloud ava up first 434.650 434.075, and then buzz 434.2
[10:37] <OZ1SKY_Brian> morning paul, i signed on the house btw
[10:38] <Randomskk> fsphil: what do I need to get the X-50 to stick somewhere?
[10:38] <pjm__> ah congrats
[10:38] <pjm__> number10 thanks
[10:38] <OZ1SKY_Brian> tnx
[10:38] <Randomskk> I take it it doesn't stand by itself?
[10:38] <fsphil> Randomskk, no -- it'll need a pole of some kind
[10:38] <Deaney_Mobile> http://t.co/aKUS6Tab
[10:39] <jonsowman> Deaney_Mobile: commitment
[10:39] <UpuMobile> going to start filling hsortly
[10:39] Tommo (c2cb6702@gateway/web/freenode/ip. joined #highaltitude.
[10:39] <Deaney_Mobile> jonsowman: And hopefully some good footage!
[10:39] <OZ1SKY_Brian> fsphil parasol mount/foot or what ever you call it
[10:39] <jonsowman> that too
[10:39] <Andy-g0poy> I use the Weltz W300, which I think is the same as the Diamond X300 6.5/9db 144/433
[10:39] <navrac> move the cam upu so we can see the fill!!
[10:40] <OZ1SKY_Brian> stream link?
[10:40] <navrac> thanks
[10:40] <jonsowman> i see buzz
[10:40] <jonsowman> on a stick
[10:40] <navrac> http://www.batc.tv
[10:41] <navrac> click on members strams and selwect 2eoupu
[10:41] <navrac> loads of people
[10:41] <navrac> 9 at last count
[10:42] <OZ1SKY_Brian> got it, thanks
[10:42] <Randomskk> fsphil: what do you use? not entirely sure how I'd set this up
[10:42] <fsphil> I have a 3m pole on the roof
[10:42] <fsphil> it's bolted onto the top of that
[10:42] <Randomskk> right
[10:42] <Randomskk> well there is an antenna pole on my roof
[10:43] <jonsowman> can you bodge it for today is the question
[10:43] <Randomskk> but I think getting onto the roof is probably not going to happen today
[10:43] <Randomskk> yea that
[10:43] <navrac> it comes with clamps to clamp onto the side of a vertical pole
[10:43] <Randomskk> ideally a bodge involving a short stick stuck to my open window :P
[10:43] <Randomskk> hmm
[10:43] <craag> You could put it in the loft?
[10:43] <fsphil> yea, the u-bolts are provided
[10:43] <Randomskk> craag: oh loft is a good idea
[10:43] <Randomskk> though then i'd have to be in the loft to track
[10:43] <fsphil> spiders!
[10:43] <Randomskk> well, no, remote from desktop :P
[10:43] <fsphil> phew
[10:43] <Randomskk> how would I fix it in the loft?
[10:43] <Randomskk> thinking duct tape admittedly
[10:44] <UpuMobile> just waiting for dave to turn up with a spanner
[10:44] <Randomskk> the loft does have windows I could stick it up out of
[10:44] <jonsowman> that'd work
[10:44] <craag> Just keep it away from boilers and large bits of metal, I just lean mine against the rafters..
[10:44] <navrac> that will do nicely
[10:44] <Randomskk> UpuMobile: ETL?
[10:44] <Randomskk> cool
[10:44] <fsphil> bold it to a brush shaft, stick that out the window
[10:44] Action: Randomskk checks he does still have coax and connectors
[10:44] <fsphil> bolt*
[10:44] <jonsowman> Randomskk: can you get to ml&s and back before launch? :D
[10:44] <fsphil> yea, this isn't a sharp launch :)
[10:44] <jonsowman> fsphil: genius
[10:44] <jonsowman> hahah
[10:44] <OZ1SKY_Brian> Randomskk mount it on the wood beams, remove the brackets and use 2 screws
[10:45] <UpuMobile> tkm
[10:45] <jonsowman> broom handle is a great idea
[10:45] <UpuMobile> fill time
[10:45] <UpuMobile> so 30 mins ?
[10:45] <UpuMobile> afk
[10:45] <Randomskk> sounds like it shoul dbe totally bodgable
[10:45] <Randomskk> UpuMobile: cool
[10:45] RocketBoy (steverand@5e0b8fe7.bb.sky.com) left #highaltitude.
[10:45] <mfa298> lengths of pvc/abs pipe make good mounting poles for something temporary
[10:45] <UpuMobile> buzz launch in 5 secs on video
[10:45] <fsphil> drat, can't watch
[10:45] <UpuMobile> lol
[10:45] <UpuMobile> party ballon
[10:45] <UpuMobile> ok filling
[10:47] <Deaney_Mobile> Climber has the payload! Just attaching it to so
[10:48] <Deaney_Mobile> me strong
[10:48] <Deaney_Mobile> Some string
[10:48] <jonsowman> autocorrect? :D
[10:48] <jonsowman> or just low self esteem having watching the climber?
[10:48] <jonsowman> :P
[10:49] <OZ1SKY_Brian> Randomskk or find a tree and mount it there, like i did with a 4m whip :-) http://digitalinfo.dk/diverse/4mant.jpg
[10:51] Graeme_SHARP (~Graeme_SH@ joined #highaltitude.
[10:51] <Deaney_Mobile> He has the parachute too! Win!
[10:51] cuddykid (~acudworth@host-92-28-59-117.as13285.net) joined #highaltitude.
[10:52] <OZ1SKY_Brian> Deaney_Mobile great, nice work
[10:52] <Graeme_SHARP> Is that everything down Jake? Or is matt still half way up the tree?
[10:54] <cuddykid> back from the most intense week ever
[10:55] <Randomskk> hmm
[10:55] <Randomskk> X-200N a little bit more expensive
[10:55] <Randomskk> longer
[10:55] <Randomskk> like a foot longer
[10:55] <Randomskk> allow that
[10:56] <cuddykid> has anything happened in the HAB world over the last week?
[10:56] <fsphil> wb cuddykid
[10:56] <UpuMobile> small delay
[10:56] <cuddykid> hi fsphil
[10:56] <UpuMobile> wrong spanner
[10:59] <Deaney_Mobile> http://t.co/kWcbzGMx Great Success!
[11:00] <UpuMobile> ok pico filling
[11:00] <fsphil> congrats to the sharp recovery team :)
[11:01] Deaney_Mobile_ (~deaneybab@ joined #highaltitude.
[11:01] Deaney_Mobile (~deaneybab@ left irc: Read error: Connection reset by peer
[11:01] Nick change: Deaney_Mobile_ -> Deaney_Mobile
[11:01] <x-f> yay, so both flights from yesterday now successfully recovered!
[11:03] <Deaney_Mobile> Win!
[11:04] <mfa298> That's a very happy looking Rich
[11:04] <Deaney_Mobile> http://t.co/QnfQXzVZ
[11:06] <UpuMobile> Buzz filling
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[11:10] chris_99 (~chris_99@unaffiliated/chris-99/x-3062929) joined #highaltitude.
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[11:12] <UpuMobile> balloon inflating now
[11:12] <Deaney_Mobile> The aerial has seen better days... http://t.co/F4cpCp7k
[11:13] BoggleJon (~jon@cpc1-cmbg10-0-0-cust144.5-4.cable.virginmedia.com) joined #highaltitude.
[11:14] <JM> Good Day gents, G1WMK listening....
[11:15] <OZ1SKY_Brian> g´day JM
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[11:16] <JM> My first time trying to track. Listened for Pica Chu4 yesterday, equipped myself with dl-fldgi and experimenting. Hope to built flight comp myself for own project
[11:16] <Bob_G8NSV> good luck jm
[11:16] <UpuMobile> video still working ?
[11:16] <JM> tks!
[11:16] <OZ1SKY_Brian> UpuMobile yes
[11:16] <navrac> its a fun and addictive hobby jm
[11:16] <Bob_G8NSV> working fine upu
[11:17] <UpuMobile> sweet
[11:17] <navrac> yep looking good
[11:17] <OZ1SKY_Brian> UpuMobile wave to us :-)
[11:17] <OZ1SKY_Brian> ahh typical, been called to launch, brb
[11:17] <cuddykid> in fact.. some of the traders were quite interested in hab lol :P
[11:18] <UpuMobile> ok
[11:18] <UpuMobile> Buzz 434.197.21
[11:19] <Bob_G8NSV> locked into SDR-radio!
[11:20] r2x0t (~r00t@b607.praha.cas.cz) joined #highaltitude.
[11:20] <JM> Question for you - when I run fldigi, sound analysed by prog but I can't listen. no audio from PC. Is this norm? any bypass?
[11:20] <Bob_G8NSV> should be able to hear it ok
[11:21] <Andy-g0poy> it's just like standard RTTY
[11:21] <JM> OK, I will investigate
[11:21] <Bob_G8NSV> check audio mixer settings what are you running on?
[11:21] <mfa298> I think it tends to depend on the soundcard. A lot of usb ones dont seem to playback whats on line in
[11:21] <Bob_G8NSV> ahh mines built in
[11:21] <Bob_G8NSV> on MB
[11:22] <Andy-g0poy> Ususally you have to turn the monitor function on in the mixer
[11:22] <JM> I'm feeding audio output from rin to line in on PC. PC running Realtek soundcard on Mobo
[11:22] <NigelMoby> hm
[11:22] <NigelMoby> jm
[11:22] pjm_mobile (~m0eyt@uhfsatcom.plus.com) joined #highaltitude.
[11:22] <Bob_G8NSV> just a cheapo realtek works fine with digimodes
[11:22] pjm_mobile (~m0eyt@uhfsatcom.plus.com) left irc: Client Quit
[11:22] <NigelMoby> in The sound mixer in windows
[11:22] <UpuMobile> nigey can we clear ociochu ?
[11:22] <mfa298> I use a cable into a port on the back of the radio designed for data modes seems to save half the faff and I can listen direct from the radio
[11:22] <UpuMobile> aka clear it pls :)
[11:22] <Bob_G8NSV> what os jm?
[11:23] <NigelMoby> should be an option that's says listen to this device
[11:23] <JM> Win7
[11:23] <NigelMoby> go for it upu I got screengrabs.
[11:23] <Bob_G8NSV> should work im on xp pro
[11:24] <NigelMoby> jm its under recording devices > properties
[11:24] <r2x0t> it's usually first channel in recording mixer, called "Stereo mix" or "What do you hear" etc.
[11:24] <NigelMoby> or configure 1 of them ...
[11:24] <number10> NigelMoby: gonzo__ was after your address to return pico
[11:24] <NigelMoby> ahh Oki tnx number10
[11:24] <JM> fldigi can "hear" the sound, and I see waterfall and have been decoding CW. I just can't hear it myself
[11:25] <NigelMoby> need to buy him and pjm a few beers I think
[11:25] <r2x0t> JM: then you need another app to forward the audio
[11:25] <jonsowman> NigelMoby: can i clear picochu?
[11:26] <NigelMoby> go 4 it Jon.
[11:26] <Bob_G8NSV> shouldnt not just off the soundcard line in. look for something like a monitot audio checkbox
[11:26] <jonsowman> ta
[11:26] <r2x0t> JM: http://www.r00t.cz//audiorepeater.exe
[11:26] <jonsowman> UpuMobile: picochu cleared
[11:26] <r2x0t> this is normally part of virtual audio cable install, but unlike cable driver, it's freeware
[11:27] <Bob_G8NSV> hes not using virtual audio thi, external rig into line in?
[11:27] <r2x0t> doesn't matter
[11:27] <r2x0t> this app just records and plays it back
[11:27] <Bob_G8NSV> works on mine and same make onboard soundcard, wierd must be a win 7 thing
[11:28] <r2x0t> also one more thing
[11:28] <r2x0t> if it's realtek, look for realtek mixer application if you installed that
[11:29] <jonsowman> it's easy on os x :P
[11:29] <r2x0t> sometimes it's impossible to change settings using windows mixer, but their sw works
[11:29] <JM> Thank you! Running audiorepeater and set Wave in = Realtek line in and Waveout = MS Soundmapper and I have audio now! Thanks again
[11:29] <jonsowman> nice and calm wind-wise today it looks like
[11:29] <Bob_G8NSV> check there is nothing like a 3d audio effects thingy running, realtek drivers often load those by default. find it and disable it if thats loaded
[11:30] <Bob_G8NSV> otherwise it puts weird dsp on your audio, real bad thing!!
[11:30] <NigelMoby> jonsowman it is here to, was gorgeous yesterday aswell, perfect habbing weather
[11:30] <jonsowman> yeahw
[11:30] <jonsowman> weds was also lovely
[11:30] <Bob_G8NSV> away!!!
[11:31] <UpuMobile> Buzz up
[11:31] <Bob_G8NSV> buzz is airborne!
[11:31] Action: jonsowman plugs laptop into hifi
[11:31] <jonsowman> mmm surround sound RTTY
[11:31] <NigelMoby> lol
[11:32] <NigelMoby> it drove my dad nuts yesterday lol
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[11:35] <Bob_G8NSV> can see traces of buzz on waterfall
[11:35] <navrac> whats the shift for buzz?
[11:35] <Bob_G8NSV> this colinear works!
[11:35] <jonsowman> USB?
[11:35] <jonsowman> navrac: 480
[11:36] <mfa298> got buzz coming in in soton,
[11:37] <mfa298> could hear the rtty shortly after lauch but had failed to get anything plugged in.
[11:37] <Bob_G8NSV> decoding now
[11:37] <jonsowman> Bob_G8NSV: dial f?
[11:38] <Bob_G8NSV> 434.197 like upu gave
[11:38] <jonsowman> ta
[11:38] Deaney_Mobile (~deaneybab@ left irc: Quit: Colloquy for iPhone - http://colloquy.mobi
[11:38] <jonsowman> quite a bit of QRM around here
[11:38] <Bob_G8NSV> will centralise display and give a better one shortly but that will get it
[11:38] Morseman (~Morseman@host-78-151-77-231.as13285.net) joined #highaltitude.
[11:39] <jonsowman> i can make it out on the w/fall
[11:39] <jonsowman> no decodes yet
[11:39] <Bob_G8NSV> clear here first decodes just above 1000m, way better than old antenna, those home made coax colinears are great!
[11:39] <Randomskk> buzz and ava not up yet?
[11:39] Action: Randomskk back
[11:39] <jonsowman> buzz is
[11:39] <Randomskk> oh
[11:39] <Randomskk> cloud and ava*
[11:39] <Randomskk> buzz just up?
[11:39] <Bob_G8NSV> just buzz
[11:39] <jonsowman> partial decoding
[11:39] <Randomskk> dial freq on buzz?
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[11:39] <Randomskk> what happened to cloud and ava?
[11:39] <jonsowman> $$FUZZ
[11:39] <jonsowman> hehe
[11:39] <jonsowman> soon
[11:39] <Bob_G8NSV> 434197
[11:40] <Matt_soton> is there a payload that should be tracked over another?
[11:40] <Matt_soton> say based on listeners to the other?
[11:40] <Randomskk> oh y es I see buzz just on waterfall
[11:40] <Randomskk> just
[11:40] <Randomskk> slight partial decode
[11:40] <Randomskk> when happened to cloud/ava?
[11:41] <jonsowman> nearly decoded one
[11:41] <Randomskk> are they still going to launch?
[11:41] Graeme_SHARP (~Graeme_SH@ left irc: Ping timeout: 244 seconds
[11:41] <jonsowman> yes
[11:41] <Andy-g0poy> receiving buzz OK
[11:41] <Randomskk> okay
[11:41] <Randomskk> I now have a diamond x-50n colinear
[11:41] <jonsowman> $$BUZZ,120,1]40:4,51.4779,-1.d2980,01871,24,1&9,12,34(1418,0,457*EB78
[11:41] <jonsowman> mm
[11:41] <Randomskk> need to solder my connectors to my coax
[11:41] <Randomskk> brb
[11:41] <Randomskk> oh this is decoding now
[11:41] <Randomskk> well no sentences yet
[11:42] <jonsowman> fadey here
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[11:43] <UpuMobile> ok ava 434.648
[11:43] <Bob_G8NSV> solid here 434.197.500
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[11:45] <Andy-g0poy> BUZZ solid here as well
[11:46] <mfa298> interesting, tone on ts-2000 and ft817 is very slightly different. Both on same freq but audio is about 1khz different.
[11:46] <Matt_soton> BUZZ is actually showing S numbers on the radio its that strong
[11:46] <Bob_G8NSV> lovely signal very little drift
[11:47] <Bob_G8NSV> s1-s2 here
[11:47] <Matt_soton> s4
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[11:48] <jonsowman> first full decode
[11:48] <jonsowman> :)
[11:49] <pjm__> loud signal here in Poole too
[11:50] <Bob_G8NSV> s2 - s3 now
[11:50] <Bob_G8NSV> off out for 20 mins back soon
[11:51] <navrac> huge local qrm on 434.2 here - buzz is strong but the qrm is killing most packets
[11:51] <Andy-g0poy> S5 here, and just starting to drift HF slightly
[11:51] <futurity> hmm buzz auto config gives 23hz shift. is this right?
[11:51] <number10> no you need to adjust
[11:51] <jonsowman> navrac: same here
[11:52] <number10> op mode rtty custom
[11:52] <jonsowman> futurity: you need a newer version of fldigi to stop that
[11:52] <futurity> oh, thanks.
[11:52] <Andy-g0poy> BUZZ 480Hz, 7 N 2
[11:52] <number10> about 466 sheft
[11:53] Nick change: number10 -> number10_M0MDB
[11:53] <Andy-g0poy> I've got the shift set to 464 now
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[11:54] <jonsowman> really bad QRM here
[11:54] <futurity> thanks for shift values
[11:54] <jonsowman> just dropping one or two symbols per sentence
[11:54] <futurity> i seem to have something else transmitting on 434,197 :(
[11:55] <jonsowman> decoding at -2dB
[11:55] <Andy-g0poy> Drifting HF faster now
[11:55] <Randomskk> hmm think I seriously underestimated the difficulty of putting pl256s on this coaf
[11:55] <Andy-g0poy> Launch site camera out of focus...
[11:55] <jonsowman> Andy-g0poy: yep, downtuning
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[11:56] <Andy-g0poy> PL259's should be banned - horrible things. I've found them the cause of most antenna problems :-)
[11:57] <Randomskk> frankly my main problem atm is just stripping this very thick coax
[11:57] <r2x0t> using pl259 for anything >30MHz is just adding attenuation
[11:58] <Randomskk> I know
[11:58] <Randomskk> however the ic7000 has so239 sockets only
[11:58] <Randomskk> really I should put N connectors on both ends of this coax and use a converter at the other end but whatever
[11:58] <GW8RAK> Despite them being called UHF plugs
[11:58] <r2x0t> time for SO239 -> N surgery then
[11:59] <jonsowman> QRM killing 2 in 3 packets
[11:59] <JM> well I get warbling but no decode yet. Quite weak signal for me with small whip and I'm just out of blue circle on tracker
[11:59] <navrac> yep ive got something on 434.197 giving huge bursts every 40-50 secs - kills every other sentence
[11:59] <Andy-g0poy> We pay 100's and 100's for equipment and it comes fitted with 259's... I've got 259 to N afdaptors in most equipment now
[11:59] <jonsowman> navrac: where are you?
[11:59] <futurity> anyone seeing the video feed? I just get the green grey process bar
[11:59] <navrac> asuffolk
[11:59] <r2x0t> futurity: link ?
[11:59] <Andy-g0poy> looks like the streaming is down
[11:59] <jonsowman> navrac: i'm in surrey, getting the same thing
[11:59] <Randomskk> uuuugh I should have just bought a stripper
[11:59] <Randomskk> I'm not getting any QRM on buzz
[11:59] <number10_M0MDB> UpuMobile: if you have time the live stream camera is not focused
[11:59] <jonsowman> wideband fart every few seconds
[11:59] <Randomskk> however I am trying to strip thick coax with a pen knife
[11:59] <futurity> The launch site will, connectivity permitting, have a live video
[11:59] <futurity> stream. Either view here : http://ava.upuaut.net/ukhastv or visit
[11:59] <futurity> http://www.batc.tv/ click Member streams and select 2E0UPU.
[12:00] <r2x0t> last time feed worked only in IE, not other browser
[12:00] <jonsowman> working fine in chrome here
[12:00] <jonsowman> well, it was
[12:00] <jonsowman> seems to be offline atm
[12:00] <futurity> I'm getting wide band farts as well although only every 15 seconds or so
[12:00] <mfa298> was working in firefox earlier
[12:00] <jonsowman> futurity: same
[12:01] <jonsowman> i havent timed them but about 15 secs
[12:01] <navrac> as buzz is drifting higher i can file out now so getting more decodes
[12:01] <futurity> perhaps a local Cambridge thing?
[12:01] <navrac> filter qrm out
[12:01] <jonsowman> futurity: i'm in surrey atm
[12:01] <futurity> very wide fart then ;)
[12:01] <navrac> and buzz is now very very strong
[12:01] <jonsowman> i've got the rx filter bandwidth really tight
[12:01] <r2x0t> batc.tv says it's streaming, but shows just colorbar
[12:02] <futurity> same here, just getting streaming coloured bar
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[12:04] <futurity> first decoded line here in Cambrige
[12:04] <UpuMobile> filling Cloud / Ava
[12:04] <Randomskk> my shield is now so messed up the plug won't go over :( :(
[12:05] <Andy-g0poy> Trim the shield, then lightly solder the ends.
[12:05] <Andy-g0poy> That will stop is bunchingup when you put the plug over it
[12:05] <GW8RAK> Is it one of those PL259's with the holes to solder through?
[12:05] <Randomskk> as in, solder the shield at the end of the connector rather than through the hole?
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[12:05] <Randomskk> it is
[12:06] <Randomskk> but I can't get the shield through to the holes as it's so bunched up it just gets pushed back
[12:06] <GW8RAK> Yuck. Worst kind.
[12:06] <Randomskk> :(
[12:06] <jonsowman> 12dB SNR, decoding fine now despite QRM
[12:06] <gonzo__> change it for an N typr
[12:06] <GW8RAK> Changed most of my 259's to side entry gland ones. Much better and more reliable.
[12:06] <Randomskk> not got any N types
[12:06] <Randomskk> need this up asap really
[12:06] <Randomskk> can swap connectors for nicer ones later
[12:06] <Randomskk> with a proper cable stripped maybe
[12:06] <GW8RAK> How far to Maplin?
[12:07] <Randomskk> too far :P also no car atm
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[12:07] <GW8RAK> And no petrol to put in it? :)
[12:08] <navrac> buzz is very strong here - could decode it on a coathanger
[12:08] <Randomskk> heh :p
[12:08] <futurity> Faint here in Cambridge still
[12:09] <GW8RAK> Not getting anything here. 434.197 USB?
[12:09] <Matt_soton> .199
[12:09] <jonsowman> 434.1998 dial
[12:09] <jonsowman> 14dB SNR
[12:09] <GW8RAK> Nothing yet
[12:09] <Andy-g0poy> I'm tuned to 434.199 at the moment, but the signal is drifting HF, I will have to retune in a few mins
[12:10] <jonsowman> started at .197 dial
[12:10] <jonsowman> gone up by nearly 3kHz so far
[12:10] <r2x0t> are predictions in tracker updated automatically or manually?
[12:11] <Andy-g0poy> When DL-fldigi decodes a packet it uploads to the web page. You can see who is Rxing on the status boxes/
[12:11] <r2x0t> I mean the predictions, not actual positions/past positions
[12:12] <Matt_soton> anyone know the frequency stability of a ntx2 crystal?
[12:12] <jonsowman> "ok ish"
[12:13] <Matt_soton> 30ppm?
[12:13] <jonsowman> if you want more quantitative than that i can't help you
[12:13] <Andy-g0poy> If you mean the landing preduction, then I think it is automatic.
[12:13] <jonsowman> r2x0t: they're run for each new packet
[12:13] <jonsowman> automatically by the tracker backend
[12:13] <Andy-g0poy> All Xtals have pretty dire temperature curves
[12:14] <r2x0t> really? I don't see prediction for BUZZ updating at all
[12:14] <jonsowman> hmm it should be
[12:14] <Bob_G8NSV> it happens slowly
[12:14] <jonsowman> drifty buzz
[12:14] <Bob_G8NSV> if the tracker agrees with its last prediction you wont see it move
[12:15] <Randomskk> rarrrrrugugh this bloody coax!
[12:15] <Randomskk> omg!
[12:16] <jonsowman> i've got a pl259 patch lead here if you want it
[12:16] <jonsowman> :P
[12:16] <Randomskk> screw you :P
[12:16] <Randomskk> I would like it very much :P
[12:16] <Andy-g0poy> Just stick a croc clip on the coax, it will work just as well :-))
[12:16] <Bob_G8NSV> have just changed antennas, the colinear is not so good at higher angles as is to be expected
[12:17] <Randomskk> Bob_G8NSV: compared to what?
[12:17] <Bob_G8NSV> a 2m slim jim!
[12:17] <Andy-g0poy> BUZZ signla is has dropped a bit, prob getting outside the antenna pattern, it's now at 10K +
[12:17] <jonsowman> Bob_G8NSV: i've got one of those in the attic
[12:17] <jonsowman> maybe i should try it
[12:17] <r2x0t> jonsowman: had to reload page, now it moved (was still seeing prediction from launch time without updates)
[12:17] <jonsowman> r2x0t: ah ok, weird
[12:17] <Bob_G8NSV> thats where all my vhf / uhf ants are
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[12:19] <Bob_G8NSV> the trace is odd theres like a sine wave up and down drift with a few second period which comes and goes
[12:19] <Randomskk> omg rage
[12:20] <gonzo__> swinging payload
[12:20] <navrac> yeah.. you can hear the swing
[12:20] <Bob_G8NSV> ahh slow doppler!
[12:20] <Andy-g0poy> Saw the same effects last time BUZZ launched.
[12:20] <gonzo__> I've seen xtals pulled as you change their orientation due to gravity, but not this much
[12:20] <Bob_G8NSV> yes i remember
[12:22] <Andy-g0poy> I'm amazed that these little Tx modules work as well as they do for this use...
[12:22] <gonzo__> if my maths are correct, to get the 50hs shift we are seeing, it would need to be moving at 35m/s
[12:23] <gonzo__> for it to be just doppler
[12:23] <Bob_G8NSV> will have to get mine hooked up to the arduino and gps and start developing my flight computer
[12:23] <Bob_G8NSV> so not likely doppler then? most odd
[12:23] <r2x0t> 35m/s is nothing for upper winds
[12:23] <r2x0t> but gps shows 52km/h
[12:23] <Bob_G8NSV> i suppose upper winds are quite fierce
[12:23] <r2x0t> 63 now
[12:24] <gonzo__> but would need to be changing to get the wobble, so 30m/s then zero etc
[12:24] <Bob_G8NSV> it wouldnt track gusts tho would it just average them out?
[12:24] <navrac> getting cold up there
[12:24] <Bob_G8NSV> the wobble is rythmic tho?
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[12:24] <Andy-g0poy> It's moving at about 14m/s but the payload is on a long cord so will be swinging about quite a lot
[12:24] <gonzo__> setting now
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[12:25] <gonzo__> settling
[12:25] <gonzo__> poss a combination of doppler and xtal gravity as it swings
[12:26] <Bob_G8NSV> veryinteresting indeed!
[12:26] <Bob_G8NSV> perhaps fly a full axis accelerometer and measure the movement of a payload!!
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[12:27] <r2x0t> that would be nice
[12:27] <gonzo__> is ava launching later then?
[12:27] <r2x0t> maybe they are waiting to see if it ends in sea or not...
[12:27] <Bob_G8NSV> you would prob need to data log to an sd the telemetry would not have enough bandwidth
[12:27] <Randomskk> !!!!!!!!!!!!!!!!!!!this coax
[12:28] <GW8RAK> Which coax?
[12:28] <r2x0t> yes, log to SD... or have fast downlink, like 1200Bd+
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[12:28] <Bob_G8NSV> would be an interesting payload to develop
[12:29] <r2x0t> 4bytes/axis 10 upd/sec = 960Bd data stream
[12:29] <Graeme_SHARP> 2 hours after successfully recovering SHARP from the tree, we are back at the launch site preparing it for Launch 4! We'll keep you updated as to times.
[12:29] <Andy-g0poy> 300bd RTTY worked quite well on a flight I was tracking a couple of days ago.
[12:29] <Matt_soton> Graeme_SHARP: climbing gear or chainsaw?
[12:29] <griffonbot> @ASobester: RT @b3noxley: Astra High Altitude Balloon Launch Video: http://t.co/bBtOrQ71 @SotonASTRA #ASTRA #UKHAS [http://twitter.com/ASobester/status/186067759342436352]
[12:30] <Darkside> hmm
[12:30] <Darkside> Randomskk: does habitat have any support for telemetry stringgs with no position info
[12:30] <Randomskk> yea
[12:30] <Darkside> like, what my cutdown will be doing
[12:30] <griffonbot> @SotonASTRA: RT @b3noxley: Astra High Altitude Balloon Launch Video: http://t.co/bBtOrQ71 @SotonASTRA #ASTRA #UKHAS [http://twitter.com/SotonASTRA/status/186067966218076160]
[12:30] <Graeme_SHARP> Catapult and Rope to get it half way down, then climbed up to meet it
[12:31] <Bob_G8NSV> r2x0t looks more like sd is the way, even more important to get payload back then!!
[12:31] <jonsowman> lol this 2m slim jim works pretty well
[12:32] <Darkside> Randomskk: how do i make use of strings with no position
[12:32] <Darkside> and how will it display
[12:32] <Bob_G8NSV> jonsowman I reckon it must have high lobes, it was useless untill stuff was high up
[12:32] <jonsowman> Bob_G8NSV: i thought slim jims are meant to have fairly low radiation horizons?
[12:32] <Bob_G8NSV> whereas the colinear picked buzz up at below 1000m and decoded just above
[12:33] <jonsowman> interesting
[12:33] <Bob_G8NSV> yes but what about at 3 times the design frequency?
[12:33] <jonsowman> heh, true
[12:33] <UpuMobile> up
[12:33] <UpuMobile> ava 434.646 ish
[12:33] <Bob_G8NSV> might try it in 4nec2
[12:33] <jonsowman> nice one UpuMobile
[12:36] <jonsowman> hmm
[12:36] <jonsowman> the jim gives a lower SNR than the whip
[12:36] <Matt_soton> UpuMobile: is that internal or external temperature?
[12:36] <jonsowman> but results in more complete decodes
[12:36] <Bob_G8NSV> might play with a qfh antenna, trouble is although they are brilliant omni directional they are circular polarisation so there wopuld be a loss recieving vertical
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[12:38] <Andy-g0poy> Only 3db for a QFH, but would not have the hole overhead.
[12:39] <Andy-g0poy> 434.650 is full of other signals, I don't think I will get much from AVA
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[12:39] <Bob_G8NSV> both todays freqs clear here
[12:40] <Bob_G8NSV> QFH is heavily used in space comms, so may be ideal for this
[12:40] <jonsowman> we built one for 137MHz a while back
[12:40] <jonsowman> for NOAA APT sats
[12:40] <Deaney_Mobile> SHARP are at the launch site. Will try and keep you updated about potential launches.
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[12:40] <Bob_G8NSV> great gps antennas so maybe great for telemetry also. anyone ever flown one?
[12:40] <Bob_G8NSV> for telemetry
[12:41] <Andy-g0poy> Noise just stopped on 650, so AVA now receiving fine.
[12:41] <r2x0t> qfh for 70cm is HUGE
[12:41] <Matt_soton> r2x0t: its really not
[12:41] <Bob_G8NSV> I am going to build a 137mhz one so may try a 434 one as well
[12:41] <jonsowman> r2x0t: we built one for 2m and it's not that big
[12:41] <jonsowman> 70cm would be tiny
[12:41] <r2x0t> for payload?
[12:42] <Matt_soton> APEX I had eggbeater antennas on the balloon
[12:42] <jonsowman> it'd be doable
[12:42] <Darkside> we've switched to using cross-dipoles on our chase-cars
[12:42] <r2x0t> you may be better with biquad on baloon
[12:42] <Matt_soton> and one of the recivers was a qfh
[12:42] <Andy-g0poy> a QFH for 137 Mhz is only 1m tall, and that's for the tall-thin design, so for 434 it would only be a foot or so tall.
[12:42] <Bob_G8NSV> very small, I have seen photos of them made from metal foil stuck on a plastic cylinder, on a sonde I think
[12:42] <Matt_soton> Bob_G8NSV: thats gps antenna however
[12:42] <r2x0t> sonde have wire qfh for gps
[12:42] <jonsowman> http://wxsat.hexoc.com/images/testing/IMG_0072.JPG
[12:42] <jonsowman> this was our 2m one
[12:42] <jonsowman> with Matt_soton modelling
[12:43] <Bob_G8NSV> no this was way before gps existed.
[12:43] <r2x0t> I think even 70cm one will be bigger then payload itself
[12:43] <Matt_soton> do you have a photo of the 70cm one ontop of the minibus jonsowman ?
[12:43] <jonsowman> hmm
[12:43] <jonsowman> http://gallery.apexhab.org/index.php/Apex-I/Launch_Day/Tracking/Tracking_013
[12:44] <jonsowman> http://gallery.apexhab.org/index.php/Apex-I/Launch_Day/Tracking/Tracking_015
[12:44] <Bob_G8NSV> an old photo I saw in the late 70's prob, it was definately a qfh
[12:44] <Matt_soton> Bob_G8NSV: well these days the qfh is gps, and smaller then the 70cm ones (not suprisingly)
[12:45] <Bob_G8NSV> and most likely uhf/vhf at a guess difficult to scale, but it was made from metal foil on a transparent plastic cylinder,
[12:46] <r2x0t> sounds more like a helix
[12:47] <navrac> Ive switched to ava - coming it quite nicely - but not as strong as buzz at the same height
[12:48] <Bob_G8NSV> no it had 2 half odd turn overlapping spirals, def a QFH did not know what it was at the time and the photo did not say. It was in the states and looked like military guys and a very big balloon
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[12:48] <Bob_G8NSV> think it was a library book
[12:49] <Bob_G8NSV> way to long ago to remember exactly
[12:49] <Matt_soton> well whatever the ntx2 has, i found some 10ppm temperature crystals for my radio
[12:50] <UpuMobile> cloud possibly faulty gps
[12:50] <Matt_soton> doing an ASTRA?
[12:50] <UpuMobile> ava going like a bat out of hell
[12:50] <Randomskk> hate. coax. so much.
[12:51] <Bob_G8NSV> randomskk you still having trouble? what are you trying to fit?
[12:51] <Randomskk> I've given up on the thicker stuff
[12:51] <Randomskk> just tryin to get this RG58
[12:51] <Randomskk> got one connector on
[12:51] <r2x0t> use the banana plug, it's not any worse than SO239 :)
[12:51] <jonsowman> buzz is quite fadey here
[12:51] <Bob_G8NSV> what sort?
[12:52] <daveake> Yeah sounds like GPS stopped / fell off / something
[12:52] <Randomskk> so239 still
[12:52] <daveake> So relying on UpuMobile ...
[12:52] <Bob_G8NSV> they are horrid connectors. is it a screw on one or one with the screw in sleeve the coax goes thru?
[12:53] <Bob_G8NSV> the best ones are crimp on for rg58
[12:53] <r2x0t> buzz is getting some weird wind up there
[12:53] <Randomskk> it's the type where there is a hole to solder the shield through
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[12:54] <UpuMobile> which is worrying with my track record
[12:54] <daveake> lol
[12:54] <jonsowman> decoding ava fine here
[12:54] <jonsowman> 6dB SNR
[12:54] <Randomskk> I'm still on buzz, should I swap?
[12:55] <UpuMobile> nah
[12:55] <jonsowman> it's about even atm in number of rxers
[12:55] <daveake> What we'd like is Buzz at 2 points ... 1 when it bursts :-) and 2nd when it lands
[12:55] <UpuMobile> just sat at daves working out where we need to drive
[12:55] <Darkside> navrac: ping
[12:55] <Bob_G8NSV> nasty things try this. get the braid twisted into a little strand of wire and make it the same length as the inner with a litle "L" bent into it, push it in and try and poke it out the hole and grab it with pliers and pull it out. Then solder it on the outside
[12:56] <UpuMobile> emptied the entire H2 into those 7.1m3
[12:56] <jonsowman> nice
[12:56] <Bob_G8NSV> its horribly tricky I hate them. A better way is to use a BNC or N and an adapter
[12:56] <Bob_G8NSV> dont know why they still use pl259, they are crap
[12:56] <Randomskk> yea :(
[12:56] <Randomskk> did that trick with the first one, works well enough
[12:56] <Randomskk> from now on I think N on my coax
[12:56] <Randomskk> will do the thick coax up with N later
[12:56] <Randomskk> oh well brb soldering second pl259
[12:57] <Andy-g0poy> they are cheap,
[12:57] <UpuMobile> can someone update live predictions pls for ava est burst 37k thx
[12:58] <Bob_G8NSV> I think an n with an adapter is better than most PL259 plugs, less mismatch I seem to remember reading an artical about that once
[12:58] <Andy-g0poy> A way I find works is to trim the braib, and lightly solder it all around. Clean the plug body and tin the metal around the holes. Insert the coax, and then use a big iron and fill the holes with solder. Taht usually connects to the braid.
[12:58] <navrac> darkside pong
[12:58] <Darkside> navrac: what noise floor were you getting on the ground
[12:59] <navrac> ooh, thats pushing my memory a bit - rssi was around 40 IIRC
[12:59] <Darkside> i'mg etting -105dBm with a bit of wire attched
[12:59] <Darkside> ok good
[12:59] <Bob_G8NSV> yes andy that is a good way does need to be a big iron tho! most now are only about 25w not heavy enough
[12:59] <Darkside> it jumps to -85dBm when its near my laptop :P
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[12:59] <r2x0t> BUZZ going back...
[12:59] <Darkside> navrac: means my board design isn't totally shit :P
[13:00] <navrac> yep - In my initial testing i had more space between the cpu and the rfm and that helped.
[13:00] <Darkside> haha
[13:00] <navrac> was going to put chkes on the lines as well
[13:00] <jonsowman> new predictions
[13:00] <Darkside> the cpu is on teh other side of the board to teh RFM chip
[13:00] <navrac> i think it needs a saw filter though
[13:00] john_many_jars__ (~john_many@cpc3-blbn8-2-0-cust5.10-1.cable.virginmedia.com) joined #highaltitude.
[13:00] Nick change: john_many_jars__ -> john_many_jars
[13:00] <Darkside> navrac: http://i.imgur.com/Od1On.jpg
[13:01] <navrac> buzz going back - temperature inversion on the xtal?
[13:01] <jonsowman> er, landing concerningly close to gatwick
[13:01] <jonsowman> too close
[13:01] <navrac> very nice
[13:01] MoALTz (~no@host-92-8-236-160.as43234.net) joined #highaltitude.
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[13:02] <jonsowman> UpuMobile: predictions updated, worryingly close to gatwick airport
[13:02] <daveake> yeah noted thx
[13:03] <Randomskk> ugh done
[13:03] <Randomskk> now I have a 2m rg58 patch
[13:03] <jonsowman> fun? :P
[13:03] <Randomskk> stress hormones through roof
[13:03] <Randomskk> hate pl259 and coax with a passion
[13:03] <Bob_G8NSV> chill now!! and listen!!
[13:03] <NigelMoby> lol
[13:04] <navrac> clouds drifting like b*ggery
[13:04] F1LPT (4e70266e@gateway/web/freenode/ip. joined #highaltitude.
[13:04] <Randomskk> suspect several cold solder joins
[13:04] <Randomskk> probably the shift soldering will make this worse than the whip anyway
[13:04] <Randomskk> right
[13:04] Action: Randomskk plugs SO239 to N adaptor onto end of coax, cries, connects that to antenna's N adapter
[13:04] <NigelMoby> pl259 I put in a category with eagle Adam.
[13:04] signaleleven (~signalele@ left irc: Quit: Leaving
[13:04] <Darkside> complete shit, but everyone seems to use it
[13:05] <Bob_G8NSV> my least favourite connector. If you have a proper crimp tool get the crimp on ones, same crimp tool as RG58 BNC's
[13:05] <Bob_G8NSV> I think rs and farnell sell them, maybe CPC
[13:06] <Bob_G8NSV> they save ages and frayed tempers!!!
[13:06] <navrac> think clouds broke :-(
[13:06] <jonsowman> no gps position updates?
[13:06] <Bob_G8NSV> http://www.ebay.co.uk/sch/items/__crimp+pl259_W0QQ_dmdZ2?clk_rvr_id=328704449595&crlp=10387922557_228459_228459&UA=WXF%3F&GUID=49efcf0d1320a0a9f4b19d41ff986432&agid=3132604357&tm_kw=crimp+pl259&siteid=3&MT_ID=11&tt_encode=raw&keyword=crimp+pl259&geo_id=32061&ff4=228459_228459
[13:07] <r2x0t> jonsowman: it's updating
[13:07] <Bob_G8NSV> sorry about the big link, thats them
[13:08] <navrac> the last 10 packets i got from cloud were all the same - apart from the count
[13:08] <jonsowman> :(
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[13:10] <Bob_G8NSV> buzz getting weak here
[13:10] <r2x0t> burst?
[13:10] <OZ1SKY_Brian> buzz burst
[13:10] <Bob_G8NSV> yep
[13:10] <OZ1SKY_Brian> accent rate was also very quick
[13:11] <jonsowman> lower than expected?
[13:11] <Bob_G8NSV> at least it will miss gatwick
[13:11] <jonsowman> yep
[13:12] <jonsowman> predictions have it in the sea though :(
[13:12] <Bob_G8NSV> dropping like a brick
[13:12] <Bob_G8NSV> moving inland now a bit
[13:12] <jonsowman> good
[13:13] <Bob_G8NSV> gone
[13:13] <Bob_G8NSV> LOS
[13:13] <Andy-g0poy> buzz signal just stopped
[13:13] <navrac> yep gone
[13:13] <jonsowman> oh dear that's not good...
[13:13] Lunar_Lander (~Lunar_Lan@p54882E70.dip.t-dialin.net) joined #highaltitude.
[13:14] <Bob_G8NSV> Ground control to Buzz??
[13:14] <Darkside> major buzz*
[13:14] <Bob_G8NSV> :)
[13:15] <Bob_G8NSV> dont think its coming back, looks like some sort of catastrophic failure
[13:15] <jonsowman> oops
[13:15] <Bob_G8NSV> what a shame
[13:15] <r2x0t> at least it was high enough, so it wasn't plane it hit for sure
[13:16] <jonsowman> ava still decoding nicely
[13:16] <jonsowman> 12dB snr
[13:16] <Bob_G8NSV> U2?
[13:16] <jonsowman> from a whip on the windowstill
[13:16] <jonsowman> ntb
[13:19] <Bob_G8NSV> got ava now
[13:19] Adam___ (57c21a79@gateway/web/freenode/ip. joined #highaltitude.
[13:21] <Bob_G8NSV> looks like Buzz is MIA, bad luck Dave.
[13:22] <Randomskk> yea lost buzz here
[13:22] <Randomskk> right, vertical very very dodgily set up in loft
[13:22] <Bob_G8NSV> just cut out no fade or drift just gone
[13:23] <navrac> yep - it was pretty much heres a packet - bye
[13:23] <Bob_G8NSV> antenna whipping round in wind and broken?
[13:24] <Andy-g0poy> It was a sudden cut off, so more likely a Tx or power fail.
[13:25] LazyLeopard (~irc-clien@chocky.demon.co.uk) joined #highaltitude.
[13:25] <Darkside> the music i'm soldewring to: http://www.youtube.com/watch?v=N4d7Wp9kKjA&ob=av2e
[13:26] Nick change: LazyLeopard -> LazyL_M0LEP
[13:26] <Randomskk> what f is ava?
[13:27] <Bob_G8NSV> 434.650 dead
[13:27] <Andy-g0poy> 434.650
[13:27] <Randomskk> ava is dead?
[13:27] <Bob_G8NSV> very stable
[13:27] <JM> Just decoded my 1st packet from ADA!
[13:27] <Bob_G8NSV> no dead on!!
[13:27] <LazyL_M0LEP> Hmmm... BUZZ heading for a wet landing. AVA on 434.649.3
[13:29] navrac_ (545c0e05@gateway/web/freenode/ip. joined #highaltitude.
[13:29] <craag> I seem to be missing the '$$A' on the start of a lot of the packets, the rest comes through intact.
[13:30] <jonsowman> what's your rx filter bandwidth set to?
[13:30] <craag> 100 hz
[13:30] <jonsowman> i've got mine at 50, that can sometimes help with that
[13:30] <craag> ok, thanks.
[13:31] <JM> I found better reception using LSB and tuning 434.652.50
[13:31] <Randomskk> decoding
[13:31] <Randomskk> yay
[13:31] Laurenceb_ (~Laurence@host86-177-56-31.range86-177.btcentralplus.com) joined #highaltitude.
[13:32] <LazyL_M0LEP> craag: You've not got the SQL button pressed, have you?
[13:32] <craag> LazyL_M0LEP: Woops, thanks!
[13:32] <LazyL_M0LEP> ;)
[13:32] <Andy-g0poy> Bw here is 75, signal rather weak now.
[13:32] <LazyL_M0LEP> Takes it a while to notice a signal change if you have.
[13:33] <LazyL_M0LEP> Yeah, AVA is fainter now than it was earlier, despite being nearer.
[13:33] <craag> Mm, getting 100% decode now, cheers!
[13:33] <Andy-g0poy> At 19k up it's prob well outside the colinear beam pattern.
[13:34] <jonsowman> shift has dropped slightly i think
[13:34] <jonsowman> 460->450
[13:34] <Randomskk> 31dB SNR says fldigi :)
[13:34] <LazyL_M0LEP> Yes. about 460-ish now
[13:34] <Randomskk> this colinear is jury rigged to a hiking pole
[13:34] <Randomskk> which is wedged between two boxes
[13:34] <Randomskk> to stick it out of the hatch window
[13:35] <jonsowman> lol
[13:35] <Randomskk> could do with more height actually
[13:35] <Randomskk> broom time
[13:36] <Andy-g0poy> cloud gps looks like it has recovered
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[13:37] <Andy-g0poy> just got 2 good pACKETS FROM CLOUD, BUT SIGNAL VERY LOW WITH ME
[13:38] <Andy-g0poy> sorry caps lock was on
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[13:40] <LazyL_M0LEP> AVA's strong at the moment, but has been through a couple of deep fades.
[13:40] <Andy-g0poy> cloud gps still look good here
[13:41] ajwillink (c3897ba6@gateway/web/freenode/ip. joined #highaltitude.
[13:41] <ajwillink> Hi All,
[13:41] kjn_ (~kjn@www.geckos-haunt.org) joined #highaltitude.
[13:42] <ajwillink> anyone know of a tiny video camera thats really light?
[13:42] <ajwillink> was thinking of sending a second cam up in the payload to video the groun
[13:42] <ajwillink> ground
[13:43] Graeme_SHARP (~Graeme_SH@ joined #highaltitude.
[13:43] <r2x0t> depends on quality you want
[13:43] <Darkside> ajwillink: none that have worked very well
[13:43] <Darkside> gopro is the best choice
[13:44] <ajwillink> I know, but its expensive
[13:44] <Randomskk> cloud freq?
[13:44] <ajwillink> will be my next choice for sure
[13:44] <Randomskk> oh nvm .075 huh
[13:44] <ajwillink> but for the first mission...
[13:44] <Andy-g0poy> 434.0746 here
[13:44] <Matt_soton> hows this ajwillink http://vimeo.com/39501001
[13:44] <Randomskk> hmmm do I swap to cloud or keep on ava :P
[13:44] <Matt_soton> thats been copressed alot too
[13:45] <ajwillink> @matt, awesome
[13:45] <ajwillink> but surely makes sense to do landscape?
[13:45] <futurity> Hi back. I seem to have lost Buzz. May i ask what recency its on now?
[13:45] <jonsowman> it's dead
[13:46] <Matt_soton> perhaps, i didnt put it in the case
[13:46] <ajwillink> ah
[13:46] <Randomskk> Andy-g0poy: what shift in fldigi are you using for cloud
[13:46] <Matt_soton> ajwillink: http://www.amazon.co.uk/Ripmax-Micro-Camera-Audio-20g/dp/B004UR6SFA/ref=sr_1_1?ie=UTF8&qid=1333201578&sr=8-1
[13:46] <Randomskk> hmm according to predicted flight both should burst justs over me :P
[13:47] <ajwillink> Now that is cool
[13:47] <ajwillink> thanks Matt
[13:47] <Matt_soton> 2GB card will do 45mins btw
[13:48] <Andy-g0poy> cloud shift is 354
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[13:50] Tommo (c2cb6702@gateway/web/freenode/ip. left irc: Quit: Page closed
[13:50] <Randomskk> :( I keep not showing up on the list of cloud receiver
[13:51] <Randomskk> more people should perhaps listen to cloud
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[13:51] Laurenceb_ (~Laurence@host86-177-209-150.range86-177.btcentralplus.com) joined #highaltitude.
[13:51] <craag> Randomskk: What's the dial freq of cloud?
[13:51] <Randomskk> 434 074 13
[13:51] <ajwillink> I guess you can put larger cards in
[13:52] <ajwillink> Trying to find out how long the battery will last
[13:52] M0PDA (02671a30@gateway/web/freenode/ip. joined #highaltitude.
[13:52] <Andy-g0poy> cloud on 434.0756 here
[13:52] <Randomskk> my macbook air is not the best remote station
[13:53] <Randomskk> hmm I still don't think this colinear has a scratch on the yagi on the rotator at cued
[13:53] <Randomskk> S1 or S3 maybe and these things are pretty close
[13:53] <Randomskk> probably my shit coax actually
[13:53] G4DPZ (~G4DPZ@cpc13-dudl11-2-0-cust394.16-1.cable.virginmedia.com) joined #highaltitude.
[13:54] <Bob_G8NSV> would have a go at cloud but 434.075 is pretty much unuseable here due to QRM
[13:54] <G4DPZ> ava freq please
[13:54] <Bob_G8NSV> 434.650
[13:54] <G4DPZ> ta
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[13:55] <craag> Yeah, I got a local carrier right on top of cloud.
[13:55] <Bob_G8NSV> .075 is full of chirping buzzing devices, many of them sadly
[13:55] john_many_jars (john_many@cpc3-blbn8-2-0-cust5.10-1.cable.virginmedia.com) left #highaltitude.
[13:56] <ajwillink> Has anyone had any success with instamapper?
[13:56] <futurity> AVA signal coming and going here in Cambridge
[13:57] Mike_SHARP (984e9d68@gateway/web/freenode/ip. joined #highaltitude.
[13:57] Action: LazyL_M0LEP switched to CLOUD, which has a more wobbly fadey signal than AVA
[13:57] <Randomskk> hmm for some reason none of my decodes are coming through
[13:57] <Randomskk> :(
[13:58] <Andy-g0poy> nor mine
[13:58] <number10_M0MDB> or minw
[13:58] <Andy-g0poy> Ahh justb as i said that one went to the website
[13:58] <navrac> cloud is now higher than buzz went - cloud is a full fat photo payload and buzz was 60g - very odd...
[13:59] <Andy-g0poy> depends a lot on the fill
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[14:00] <LazyL_M0LEP> BUZZ seems to have vanished completely.
[14:00] <Bob_G8NSV> he went MIA at around 13.12
[14:00] NigeyS (~nigel@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[14:00] <Andy-g0poy> BUZZ just stopped some time ago
[14:00] <GW8RAK> Cloud okay up here, but a lot more noise around the frequency than .650
[14:00] <LazyL_M0LEP> Yeah. I was tracking AVA and didn't notice BUZZ stopped updating...
[14:01] <Bob_G8NSV> chirps and buzzes?
[14:01] <Andy-g0poy> cloud up to 29k
[14:01] <GW8RAK> Odd noise bursts, but mostly wideband.
[14:02] <GW8RAK> AVA just about to get more than 5 degrees above my horizon. A rare event.
[14:02] <Bob_G8NSV> wideband buzzes and chirps here prob AM devices
[14:02] <LazyL_M0LEP> CLOUD needs a bit of that track north-east to keep it out of the wet...
[14:03] <jonsowman> 30km
[14:03] <Bob_G8NSV> just turned east!
[14:04] Morseman (~Morseman@host-78-151-77-231.as13285.net) joined #highaltitude.
[14:04] <jonsowman> dave's chase car is very near me
[14:04] Deaney_Mobile (~deaneybab@ joined #highaltitude.
[14:05] <futurity> Hi is there any way i can check that my decoded CLOUD lines are being uploaded? they don't seem to be displayed on the map
[14:05] <futurity> m6fty
[14:05] <Randomskk> futurity: yea
[14:05] <Randomskk> http://habitat.habhub.org/testing-web/demo.html
[14:05] <Randomskk> click GMaps
[14:05] <Randomskk> wait for it to load the flights
[14:05] <Randomskk> scroll right down to the bottom on the flight list
[14:05] <Randomskk> click the bottom CLOUD
[14:05] <Randomskk> (just above PICO)
[14:05] <Randomskk> it'l load the flight path
[14:06] <Randomskk> but also, the info box below the flight list shows receivers
[14:06] <Andy-g0poy> cloud at 31km
[14:06] <Randomskk> and every time a new packet comes in, it'l show everyone who got that packet
[14:06] <Darkside> oh man guys
[14:06] <Darkside> guys
[14:06] <Darkside> who here uses chrome adblock
[14:06] <LazyL_M0LEP> futurity: I've seen a few of yours, but it seems to be suffering from the "only one receiver listed" issue (or something similar)...
[14:06] Morseman (~Morseman@host-78-151-77-231.as13285.net) left irc: Read error: No route to host
[14:06] <jonsowman> damn solar panels
[14:06] <Darkside> for april fools, adblock replaces ads with pictures of cats!
[14:06] herrmann-s (herrmann-@h037.kl03.folz.de) left #highaltitude.
[14:06] <navrac> I'm just watching so i can make the awful pun 'cloudburst'
[14:06] <Randomskk> oh
[14:06] <Randomskk> right
[14:06] <futurity> Randomskk: thanks cool to know that my lines are there
[14:07] <Randomskk> it's a bug in cloud's flight doc
[14:07] Morseman (~Morseman@host-78-151-77-231.as13285.net) joined #highaltitude.
[14:07] <Randomskk> who submitted that >_>
[14:07] <jonsowman> you?
[14:07] <Randomskk> maybe?
[14:07] <Randomskk> I don't know
[14:07] <Randomskk> someone did
[14:07] <Randomskk> possibly it's just quite old
[14:07] <jonsowman> what's te bug??
[14:07] <Randomskk> at any rate fixed
[14:07] <jonsowman> *the
[14:07] <futurity> LazyL_M0LEP: yep that only show 1 line feature resulting my my lines not being shown has made me give up tracking in the past.
[14:07] <Randomskk> it had 'count' instead of 'sentence_id'
[14:07] <jonsowman> that again
[14:07] <Randomskk> futurity: it's fixed on the main map now
[14:07] <Randomskk> sorry about that
[14:08] <Randomskk> bug in the flight doc
[14:08] <futurity> Randomskk: thanks. appreciated
[14:08] <Randomskk> for the record everyone, if that happens again it's an easy fix once pointed out
[14:08] <Randomskk> also just so you all know
[14:08] <Randomskk> you were being received/saved and will show up on the stats
[14:08] <jonsowman> this slim jim is working well
[14:09] <Randomskk> this really quite tall colinear seems to be doing okay
[14:09] <number10_M0MDB> what one is it jonsowman ?
[14:09] <Lunar_Lander> oh hi
[14:09] <Randomskk> though I think the s meter was a lot better with the yagi at cambridge jonsowman
[14:09] <Lunar_Lander> didn't notice XChat did connect itself
[14:09] <jonsowman> number10_M0MDB: i made it.. it's for 2m
[14:09] <Randomskk> bit concerned about the angle when it bursts
[14:09] <Randomskk> going to be right next to me
[14:09] <Lunar_Lander> do we have an ascent currently?
[14:09] <Randomskk> at a pretty high altitude
[14:09] <jonsowman> but appears to be okay for 70cms
[14:09] <Randomskk> probably go out of the colinear's range
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[14:09] <jonsowman> Randomskk: lie it down
[14:09] <Morseman> Jonsowman 70cm slinking?
[14:09] <Lunar_Lander> !topic
[14:10] <Lunar_Lander> hm
[14:10] <Randomskk> yea I guess I will
[14:10] <Morseman> Hate auto correct!
[14:10] <Bob_G8NSV> I will try and model one in 4nec2 at 440mhz and see what the 3d plot looks like
[14:10] <jonsowman> Bob_G8NSV: thanks
[14:10] <Morseman> Slimjim
[14:10] <jonsowman> i'm getting 14dB SNR from Ava
[14:10] <jonsowman> or so says fldigi anyway
[14:10] <Bob_G8NSV> I am guessing a lot of it is above the horizon
[14:11] <Randomskk> I love it when the prediction says "yea it's going to hook a total right angle here"
[14:11] <Randomskk> and you're like "what no way"
[14:11] <Randomskk> and then it does
[14:11] <jonsowman> yeah :D
[14:11] <jonsowman> chase cars on the A3
[14:11] <Bob_G8NSV> very impressive when it does that
[14:11] <Lunar_Lander> AVA and CLOUD fly together and BUZZ on its own?
[14:11] <jonsowman> dunno why they didnt stay on the M25 and head down the A24 really
[14:11] <Randomskk> wooo! I'm the highest receiver of CLOUD packets exlcuding daveake in testing and his sms gateway :P
[14:12] <jonsowman> 33km
[14:12] <Randomskk> DanielRichman: your stats pie charts are v nice
[14:12] <Lunar_Lander> can anyone read me?
[14:12] <Lunar_Lander> testing-testing
[14:12] <number10_M0MDB> anyone seen lunar
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[14:12] <Lunar_Lander> yea
[14:12] <LazyL_M0LEP> LL yep
[14:13] <Dutch-Mill-mob> Yes Lunar
[14:13] <Lunar_Lander> BUZZ seems to head for the southern coast again
[14:13] <Mike_SHARP> out of interest... what mass balloons are AVA and CLOUD using?
[14:13] <jonsowman> 1600 hwoyees iirc
[14:13] <Mike_SHARP> cheers
[14:15] <number10_M0MDB> is that the one you posted a picture of earlier jonsowman ?
[14:15] <futurity> Switched to receiving AVA now due to local interference
[14:15] <Lunar_Lander> I keep forgetting the "float model"
[14:15] <jonsowman> number10_M0MDB: no, that's a QFH
[14:15] <Lunar_Lander> is that the Hwoyee 2000?
[14:15] <mfa298> Just hearing from SHARP they're looking to try a launch at 1600 (I assume BST). I think the prediction is for a landing between Newbury and Southampton.
[14:15] Morseman (~Morseman@host-78-151-77-231.as13285.net) left irc: Quit: Bye
[14:15] <jonsowman> number10_M0MDB: http://gallery.apexhab.org/index.php/Apex-I/Building/Antennas/Antennas_001
[14:16] <jonsowman> this is my homebuilt slim jim
[14:16] <number10_M0MDB> ta
[14:16] <Laurenceb_> was picochu recovered?
[14:16] <Lunar_Lander> yea
[14:16] <fsphil> evening all ... cloud still in the air?
[14:16] <jonsowman> number10_M0MDB: http://gallery.apexhab.org/index.php/Apex-I/Testing/Antennas/Antennas_005 insides
[14:16] <Lunar_Lander> by pjm or so
[14:16] <Bob_G8NSV> mine is just ribbon feeder hanging from the rafters!
[14:16] <Andy-g0poy> CLOUD at 35km
[14:16] <Lunar_Lander> hello fsphil
[14:16] <Laurenceb_> it missed the trees?
[14:17] M0PDA (02671a30@gateway/web/freenode/ip. left irc: Quit: Page closed
[14:17] <jonsowman> http://gallery.apexhab.org/index.php/Apex-I/Testing/Antennas/Antennas_007
[14:17] <jonsowman> was surprisingly good
[14:17] <number10_M0MDB> look good
[14:17] <Bob_G8NSV> they are dead simple to make and very effective
[14:17] <jonsowman> agreed
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[14:17] Graham_ (560d42cc@gateway/web/freenode/ip. joined #highaltitude.
[14:18] Nick change: Graham_ -> Guest70146
[14:19] <fsphil> what's our dial frequencies this evening?
[14:19] <jonsowman> fsphil: ava on 434.64843
[14:19] <LazyL_M0LEP> 434.073.3 for CLOUD
[14:20] <fsphil> lovely signal from ava
[14:21] <number10_M0MDB> I was thinking if the record is broken - AVA gets it as (i think) its above cloud
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[14:21] <jonsowman> cloud says it's 60m above ava
[14:22] <jonsowman> that's clearly wrong ofc
[14:22] <fsphil> 37km
[14:22] <jonsowman> :)
[14:22] <jonsowman> buzz burst at 27ish
[14:22] <jonsowman> that's weird
[14:22] <number10_M0MDB> thats daves code - he ads a few feet to make sure
[14:23] <fsphil> I wonder if I can get cloud with a smaller antenna
[14:24] fsphil-laptop (~phil@2001:8b0:34:1:219:d2ff:fe09:a6b9) joined #highaltitude.
[14:25] <jonsowman> 38km on this packet?
[14:25] <jonsowman> hah, 3m
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[14:26] <Laurenceb_> heading for heathrow
[14:26] <GW8RAK> Did Cloud go silent there for a moment?
[14:26] <OZ1SKY_Brian> jonsowman its going for the x-price :-)
[14:26] <GW8RAK> No audio and nothing on waterfall
[14:26] <navrac> didnt see a silence
[14:26] <jonsowman> OZ1SKY_Brian: hehe
[14:26] <GW8RAK> Back now though
[14:27] <jonsowman> burst
[14:27] <LazyL_M0LEP> Yep
[14:27] <navrac> yep
[14:27] <Andy-g0poy> cloud burst
[14:27] <navrac> drat -you got there first
[14:27] <Bob_G8NSV> ava signal has gone haywire on th way down
[14:28] <jonsowman> it should settle in a min
[14:28] <r2x0t> -86m/s
[14:28] <Bob_G8NSV> its falling pretty quick!
[14:28] <fsphil-laptop> my last successful decode was at 38.1km
[14:28] <jonsowman> had to put the rx bandwidth up
[14:28] <jonsowman> i'm still decoding fine
[14:29] <Laurenceb_> what happened to the chase cars?
[14:29] <Bob_G8NSV> yep 38.086 here
[14:29] <UpuMobile> are we clear of Gatwick?
[14:29] <craag> 38169m here.
[14:29] <jonsowman> yeah you're ok i think UpuMobile
[14:29] <jonsowman> currently landing in dorking area
[14:29] Jim3 (~JimBuk@02dd0b74.bb.sky.com) joined #highaltitude.
[14:29] <Laurenceb_> fitting
[14:29] <Andy-g0poy> looks like it is slowing a bit now
[14:29] <jonsowman> Andy-g0poy: i should hope so!
[14:30] <Laurenceb_> lots of trees around there :S
[14:30] <jonsowman> it'd make a right mess hitting the ground at 80m/s
[14:30] <jonsowman> Laurenceb_: yea
[14:30] <jonsowman> if i left now i could be there in 15 mins
[14:30] <jonsowman> >.>
[14:30] <Randomskk> looks like it'l fly directly overhead
[14:30] <Randomskk> shame it's so overcast or I could probably spot it
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[14:31] <Darkside> they're really really hard to spot...
[14:31] <Darkside> even at only a few hundred metres altitude
[14:31] <Matt_soton> Randomskk: we didnt see joey when it was directly overhead at a low altitude
[14:31] <Randomskk> true
[14:31] <Randomskk> I do have a telescope on an automatic rotator however
[14:31] <navrac> using ther latest figures into the cusf predictor shows it well short of gatwick - even at a much lower decent rate
[14:32] <navrac> dorking area ish
[14:32] <Laurenceb_> dork area
[14:32] <Laurenceb_> ftfy
[14:32] <jonsowman> i dont know why the chase cars left the M25 at J10. should have carried on to J9 and gone down A24
[14:32] <jonsowman> nvm
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[14:33] <Laurenceb_> chase cars arent updating
[14:33] <Laurenceb_> oh wait are now
[14:33] <Laurenceb_> heh they are together
[14:35] <fsphil-laptop> didn't take ava long to disappear from my screen!
[14:35] <Lunar_Lander> why isn't BUZZ received anymore?
[14:35] <Randomskk> fsphil-laptop: I got the x-50
[14:35] <Randomskk> :D
[14:35] <jonsowman> 18dB here
[14:35] <jonsowman> S1
[14:35] <jonsowman> up to S3 breifly
[14:35] <jonsowman> *briefly
[14:35] <UpuMobile> yo Upu here
[14:35] <Matt_soton> mine fades in and out quite a lot
[14:36] <Randomskk> jeez it's almost right overhead here
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[14:36] <Laurenceb_> what happened to Buzz?
[14:36] <Randomskk> gonna go right through the null
[14:36] <Laurenceb_> can you see it?
[14:36] <Laurenceb_> binoculars?
[14:37] <G4DPZ> cloud is dfifting in freq very quickly
[14:37] <G4DPZ> drifting
[14:38] <fsphil-laptop> Randomskk, sweet. got it up?
[14:38] <Andy-g0poy> I cant decode due to the drift
[14:38] <jonsowman> 20dB!
[14:38] <jonsowman> crazy
[14:38] <cuddykid> nice altitude Daveake!
[14:38] <cuddykid> was buzz a pico?
[14:38] <Laurenceb_> cmon chase cars get moving
[14:39] <Laurenceb_> they could be at the landing site to film it
[14:39] <jonsowman> there's not great GSM reception around that area due to the south downs
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[14:39] <jonsowman> cars might not have GPRS/3G
[14:39] <Darkside> why are hill ranges called downs
[14:40] <Darkside> hrmm
[14:40] <Darkside> i guess you can do down the hills
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[14:40] <Lunar_Lander> why isn't BUZZ received anymore?
[14:41] <jonsowman> hehe it's only 5km or so away from me over the ground
[14:41] <jonsowman> maybe 10
[14:41] <LazyL_M0LEP> Gallopping drift!
[14:41] <Laurenceb_> spot anything Randomskk?
[14:42] <cuddykid> common daveake_chase - put the pedal to the floor :P (all in the name of HAB of course..)
[14:42] <cuddykid> 100 points for catching the payload
[14:43] <fsphil-laptop> 1000 points surely
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[14:44] <cuddykid> oh yes, missed a 0 ;)
[14:44] <Randomskk> cloud stopped?
[14:45] <Andy-g0poy> no just drifting in freq now on 434.061
[14:45] <Randomskk> aha
[14:45] <Randomskk> wow drfiting v fast
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[14:46] <jonsowman> S7 here
[14:46] <jonsowman> !
[14:46] <mfa298> Odd bits I'm hearing for SHARP Launch is planned launch around 1600, with programmed cut down at 28km and possibly a time limit.
[14:46] <Randomskk> cloud is going crazy
[14:46] <Andy-g0poy> looks like cloud is drifting back HF again now
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[14:47] <fsphil-laptop> cloud doing what clouds do best?
[14:47] Zuph (~Zuph@96-28-181-206.dhcp.insightbb.com) joined #highaltitude.
[14:47] <jonsowman> rain?
[14:47] <fsphil-laptop> drift
[14:47] <jonsowman> ah
[14:47] <jonsowman> makes more sense
[14:47] Action: fsphil-laptop gets his coat
[14:47] <jonsowman> lol
[14:47] <Graham_G3VZV_> thats not drifitng it is racing across the spectrum
[14:48] <Mike_SHARP> mfa298: that's correct, we want to give ourselves time to collect before dark
[14:48] <Randomskk> cloud drfifting so fast
[14:48] <Randomskk> turning f knob at same rate tokeep steady
[14:49] <jonsowman> ava's been fairly stable
[14:49] <mfa298> Mike_SHARP: I'm getting some info from Jake via SMS.
[14:49] <jonsowman> ava's level with me
[14:50] <jonsowman> 5mi away over ground
[14:50] <Mike_SHARP> ok
[14:50] <JM> Am I missing something here? spacenear.us shows Cloud & Eva inside M25. Chase cars are near Horsham
[14:50] <jonsowman> JM: look at the predictions :)
[14:50] <jonsowman> (the lightly coloured traces)
[14:50] <JM> not showing on my map
[14:50] <jonsowman> ah
[14:51] <fsphil-laptop> they don't appear straight away
[14:51] <jonsowman> they're predicted to land midway between horshame and dorking
[14:51] <jonsowman> *horsham
[14:51] <JM> I have seen them on other flights, but they are missing on this one.
[14:51] <Randomskk> take a while to load
[14:51] <r2x0t> try realoading
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[14:52] <fsphil-laptop> daveake slightly ahead :)
[14:52] <fsphil-laptop> not that this is a race or anything
[14:53] <jonsowman> lol
[14:53] <Andy-g0poy> managed to get couplke of clean decodes by manually tracking the freq
[14:53] <number10_M0MDB> strange that daveake is slightly ahead but his gps alwas shows lower speed than UpuMobile
[14:53] <number10_M0MDB> ;)
[14:53] <jonsowman> how suspicious
[14:53] <JM> Aha! Closed down browser and reloaded. Now showing prediction
[14:55] <Randomskk> cloud drfited 10khz in 10min
[14:55] <jonsowman> :o
[14:55] <jonsowman> wow
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[14:55] <Randomskk> still got one hand on f dial
[14:55] <jonsowman> lol
[14:55] <Randomskk> gently rotating ti cacel drift
[14:55] <jonsowman> im not surprised at that rate
[14:55] <Randomskk> can't type either
[14:56] <Randomskk> my mac can only do rig control at 600bd
[14:56] <Randomskk> too slow for auto retuning
[14:56] <Randomskk> I think
[14:56] <Darkside> someone fix the auto retuning stuff
[14:56] <Darkside> :P
[14:56] <Randomskk> let's see, actually
[14:56] <Randomskk> it works fine Darkside
[14:56] <Darkside> hrmm
[14:56] <Randomskk> just the os x build doesn't have hamlib
[14:56] <Randomskk> only rigcat
[14:56] <Darkside> we've had problems in our chase cars
[14:56] <Darkside> windows
[14:56] <Randomskk> and rigcat only works with my icon at 600bd for some reason
[14:56] <Randomskk> meh it's worked a treat on my desktop
[14:56] <Darkside> hmm
[14:57] <Randomskk> cloud is drifting a lot slower now
[14:57] <Randomskk> let's see if the auto correction managed
[14:57] <Randomskk> hmmm without me retuning it conitniuously it can't seem to decode
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[14:57] <Randomskk> yea the jump as fldigi retunes the radio makes it break the packet
[14:57] <Randomskk> :(
[14:58] <fsphil-laptop> yea
[14:58] <fsphil-laptop> annoying that
[14:58] <Randomskk> hmm currently on a whip lying flat
[14:58] <Randomskk> wonder when to swap back
[14:58] <Andy-g0poy> drift has now slowed down a bit getting decodes OK
[14:58] <Randomskk> cloud's signal strenght is much much much lower than ava
[14:58] <Randomskk> like S1 vs S8
[14:59] <Laurenceb_> looks like they might be in time to catch it
[14:59] <jonsowman> ava is getting a bit fadey here
[14:59] <Graham_G3VZV_> yup cloud is much weaker here too
[14:59] <Randomskk> weird
[14:59] <Randomskk> got another one at least
[15:00] <Randomskk> drift has stabalised it seems
[15:01] <fsphil-laptop> not long now
[15:01] <fsphil-laptop> 10 minutes
[15:01] <futurity> Hi, is there an ETA on the next launch?
[15:01] <Graeme_SHARP> SHARP launching within te next half hour :)
[15:01] <fsphil-laptop> 16:30 sharp? :)
[15:02] <Randomskk> :P
[15:02] <Lunar_Lander> fsphil-laptop, hello, there are news available
[15:02] <griffonbot> @PD3EM: @project_sharp use #UKHAS in your tweets to get them mirrored to the #highaltitude IRC channel [http://twitter.com/PD3EM/status/186106119054295041]
[15:02] <Lunar_Lander> display news?
[15:02] <Graeme_SHARP> between 15 minutes and 30 to launch
[15:02] <number10_M0MDB> quite a few houses nera
[15:02] <Randomskk> time to head back to the colinear I think
[15:03] <Lunar_Lander> there even is a train station in the area
[15:03] <fsphil-laptop> this is going to be close
[15:03] <Lunar_Lander> Holmwood
[15:03] <fsphil-laptop> Lots of Copseses
[15:03] <Lunar_Lander> yeah
[15:03] <Lunar_Lander> what do they mean?
[15:03] <Laurenceb_> haha
[15:03] <Laurenceb_> landing at "Lag Copse"
[15:04] <Randomskk> right, on the colinear
[15:04] <Randomskk> yay
[15:04] <fsphil-laptop> as long as it avoids Nobs Copse
[15:04] <Randomskk> let's see how far down I can get it ;D
[15:04] <Laurenceb_> get cameras out for landing video
[15:04] <Mike_SHARP> griffonbot: thanks for info, will do!
[15:05] <number10_M0MDB> Holmwood Common wood doesnt look like a nice place to fly over on the last few feet
[15:05] <Laurenceb_> they need to take a left before Holmwood
[15:05] <Lunar_Lander> Randomskk, are you already on spacenear or will you show up in a moment?
[15:05] <Randomskk> Lunar_Lander: I'm on spacenear
[15:05] <Randomskk> M0RND station
[15:05] <Lunar_Lander> ah
[15:05] <fsphil-laptop> I am spacenear
[15:05] <Lunar_Lander> yeah
[15:05] <Lunar_Lander> XD
[15:05] <Laurenceb_> TURN LEFT
[15:05] <Lunar_Lander> 1690
[15:05] <fsphil-laptop> copse: A small group of trees.
[15:05] <fsphil-laptop> eek
[15:05] <Lunar_Lander> ah, thanks
[15:06] <Lunar_Lander> 1578
[15:06] <Randomskk> no, lawnmower, no!
[15:06] <jonsowman> getting hard to decode
[15:06] <Randomskk> 1522...
[15:06] <Randomskk> still ok on cloud here
[15:06] <Randomskk> let's see how this antenna does
[15:06] <Laurenceb_> fail
[15:06] <fsphil-laptop> landing in 5 minutes
[15:06] <jonsowman> packet 1000
[15:06] <Laurenceb_> they should have turned left
[15:06] <navrac> ive had to drop my mast down 10 feet - the winds picked up and i didnt bother with the guy wires this morning
[15:06] <Laurenceb_> turn around turn around
[15:06] <Lunar_Lander> can they read us somehow?
[15:07] Action: Laurenceb_ joins ~backseat driver
[15:07] <Randomskk> aww one bit error in this sentence
[15:07] <fsphil-laptop> grr, the backlight in Fedora dims after only a few seconds of idle
[15:07] <Randomskk> signal getting weaker
[15:07] <Laurenceb_> ah they turned
[15:07] <Lunar_Lander> approaching the final kilometer
[15:07] <Randomskk> almost lost it..
[15:07] <jonsowman> cat is holding antenna up
[15:07] <Randomskk> lol
[15:07] <Laurenceb_> they should get it
[15:07] <Randomskk> really losing it
[15:07] <Lunar_Lander> cloud at 1001
[15:07] <Randomskk> 91m I think that siad
[15:07] <Randomskk> yea
[15:08] <Lunar_Lander> ava 1004
[15:08] <jonsowman> think that's it for me too
[15:08] <Randomskk> got partial decode for 91m
[15:08] <fsphil-laptop> local altitude is 100m
[15:08] <Randomskk> still getting traces
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[15:08] <Randomskk> got $$CLOUD :(
[15:08] <Laurenceb_> yesss
[15:08] <Laurenceb_> they are right by it
[15:08] <Lunar_Lander> yeah
[15:08] <jonsowman> $$AVA,1006,15:08:06,51.197688,-0.316649,779,10,3.93,5759,-6.11,D*257F
[15:08] <jonsowman> nearly
[15:08] <fsphil-laptop> nice
[15:08] <Laurenceb_> now they just need to get into field to catch it :P
[15:08] <jonsowman> yes, got one!
[15:08] <jonsowman> 679m
[15:09] <Lunar_Lander> XD there is "Godwins Nursery" next to Holmwood station
[15:09] <fsphil-laptop> the predictor assumes 0m ground elevation
[15:09] <jonsowman> got another at 484m
[15:09] <Randomskk> huh that's a very different altitude to what I was seeing
[15:09] <Lunar_Lander> the car receives Ava
[15:09] <jonsowman> that's it, gone
[15:09] <Randomskk> no more trace here I think
[15:09] <Andy-g0poy> cloud now below my Rx horiz.
[15:09] <Lunar_Lander> at least it can't interfere with the railway
[15:10] <Lunar_Lander> as that is running quite parallel to the trajectory
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[15:10] <fsphil-laptop> eek, landed on a main road
[15:10] <UpuMobile> just seen it under parachute
[15:10] <fsphil-laptop> no, gone past it
[15:10] <fsphil-laptop> eek, trees
[15:10] <navrac> phew
[15:10] <Lunar_Lander> it heads for Vigo Farm
[15:10] <navrac> nice spotting
[15:10] <fsphil-laptop> yea, tree
[15:10] <Laurenceb_> its down
[15:11] <jonsowman> in a tree?
[15:11] <Laurenceb_> tangling in tree
[15:11] <jonsowman> looks like it
[15:11] <fsphil-laptop> looks like it from the google image
[15:11] <Laurenceb_> it just moved down a bit
[15:11] <fsphil-laptop> but that could be old
[15:11] <number10_M0MDB> oops
[15:11] <navrac> touchdown i reckon
[15:11] <jonsowman> last good decode as 484 with a whip on my desk
[15:11] <jonsowman> :D
[15:11] <jonsowman> *at
[15:11] <Lunar_Lander> :D well done
[15:12] <jonsowman> lol
[15:12] <Laurenceb_> crazy
[15:12] <fsphil-laptop> in saying that, the chase car is 118m asl
[15:12] <LazyL_M0LEP> Looks a lot like it's in a tree...
[15:12] <Laurenceb_> what distance?
[15:12] <fsphil-laptop> and the payload is 120m asl
[15:12] <jonsowman> Laurenceb_: i'm M0JSN on the tracker
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[15:12] <jonsowman> north of Dorking, leatherhead area
[15:12] <LazyL_M0LEP> ...so it might be on the ground. That'd be good. ;)
[15:12] <fsphil-laptop> or up a very small tree
[15:13] <jonsowman> hehe
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[15:13] <Lunar_Lander> to return
[15:13] <Andy-g0poy> Well done Dave, hope the payloads survived. Talk to you later on Cix
[15:13] <Andy-g0poy> Bye all!
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[15:13] <Lunar_Lander> is there any idea on what has happened to BUZZ?
[15:13] <number10_M0MDB> looks like some power lines near
[15:13] <navrac> its coming down a bit more]
[15:13] <navrac> went bang and lost all signal a miute after
[15:14] <Lunar_Lander> oh
[15:14] <Lunar_Lander> number10_M0MDB, you are right
[15:14] <Lunar_Lander> I can see them too
[15:14] <benoxley> Graeme_SHARP: when is sharp going up?
[15:14] <number10_M0MDB> very near
[15:14] <Lunar_Lander> to the left of the trees
[15:14] <Lunar_Lander> but also south of the payload
[15:15] <Randomskk> jonsowman: you're the top decoder after upu/m for ava :
[15:15] <Randomskk> :P *
[15:15] <navrac> andy-g0poy - another cixen?
[15:15] <jonsowman> woo
[15:15] <Randomskk> (and I'm the top decoder after daveake for cloud)
[15:15] <futurity> how about for CLOUD?
[15:15] <Randomskk> (I think our location may be helping ;))
[15:15] <Randomskk> futurity: http://habitat.habhub.org/stats/
[15:15] <jonsowman> i think you may be right
[15:15] <Randomskk> click Flight List
[15:15] <number10_M0MDB> Randomskk: have you a link to the stats?
[15:15] <Randomskk> click CLOUD
[15:15] <futurity> Thanks
[15:15] <LazyL_M0LEP> The power lines are running nearly north-south. I don't think it's in them. The tree on the other hand...
[15:15] <number10_M0MDB> opps already posted
[15:15] <Mike_SHARP> benoxley: soonish :)
[15:15] <Lunar_Lander> LazyL_M0LEP, there is one more line running east-west
[15:16] <Randomskk> though bear in mind DAVEAKE there is him testing
[15:16] <Lunar_Lander> zoom in
[15:16] <Randomskk> as is SMS_GATEWAY
[15:16] <OZ1SKY_Brian> looks like churchtime for UPU :-)
[15:16] <benoxley> Thanks Mike_SHARP
[15:16] <LazyL_M0LEP> Ah, yes. Throughthe gap in the trees just south of the payload.
[15:17] <Lunar_Lander> yea
[15:17] <mfa298> Mike_SHARP: have you heard any more about the timed cutdown (other than there might be one)
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[15:17] <Lunar_Lander> the associated mast is on the field of Vigo Farm
[15:17] <Lunar_Lander> you can spot its shadow
[15:18] <JM> Wierd but I just googled and found an Ava Cloud on Facebook...
[15:18] <fsphil-laptop> lol
[15:18] <jonsowman> haha
[15:18] <JM> Inspiration?
[15:18] <fsphil-laptop> does she know we're tracking her? :)
[15:18] <JM> http://www.facebook.com/ava.cloud
[15:18] <Lunar_Lander> XD
[15:19] <Mike_SHARP> mfa298: yes, cutdown for half 6 or a fixed time after launch (I think 2.5 hours) was the plan.
[15:20] <Mike_SHARP> but obviously the 2.5 hours after launch now comes after half 6 anyway
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[15:21] <JM> Guys this has been mega useful. I managed to log my first ballon payload QSO and learn the hard/fast way about fldigi. I have learned a lot thanks to your efforts. I'm leaving the chat window open to read later but must depart the group. Toodle pip!
[15:21] <jonsowman> cheers JM
[15:21] <fsphil-laptop> glad you enjoyed it :)
[15:22] <Randomskk> so when I went to ml&s to buy my antenna
[15:22] <fsphil-laptop> I only managed to receive few strings today, but more than I expected
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[15:22] <Randomskk> the guy was like "so what's your callsign?" and it turns out their system still has me as 2E0SKK from when I last bought some stuff from them
[15:22] <Randomskk> anyway he was like "oh you live really close! but I haven't heard you talk?"
[15:22] <mfa298> Based on what I pushed in the predictor earlier I think the altitude one might go first (assuming that is also in)
[15:22] <fsphil-laptop> hehe
[15:22] <Randomskk> and then I was like "yea I have a full license now..." and he was all "...but you don't talk to anyone?"
[15:22] <Randomskk> he almost looked sad
[15:22] <Randomskk> :|
[15:22] <jonsowman> haha
[15:23] <Randomskk> "but you're so close by!"
[15:23] <Lunar_Lander> XD!
[15:23] <fsphil-laptop> "please talk to me"
[15:23] <Elmar_PD3EM> UpuMobile: must have visual now
[15:23] <Randomskk> so I said I sometimes go on gb3ns to placate him and he told me a story about the crazy, totally nuts guy who runs it
[15:23] <mfa298> well done JM, it's oddly addictive.
[15:23] <Randomskk> lives in a ground floor apartment
[15:23] <Randomskk> ceiling covered in antennas
[15:23] <jonsowman> how did UpuMobile get his car there?
[15:23] <jonsowman> i can't see a road
[15:24] <Laurenceb_> joined the church
[15:24] <Lunar_Lander> I read that in the 70's, people tended to go to a level crossing and talked via the telephones there from one side to the other
[15:24] <Lunar_Lander> and that annoyed the signalmen
[15:24] <Elmar_PD3EM> you don't need a road to drive ;-)
[15:24] <jonsowman> Elmar_PD3EM: good point
[15:24] <jonsowman> driving across someone's field a bit :\ though
[15:24] <fsphil-laptop> "Where we're going, we don't need roads"
[15:24] <jonsowman> maybe it's his phone and he just took it with him
[15:24] <fsphil-laptop> Lunar_Lander, I'm disappointed you didn't think of that quote :p
[15:24] <Lunar_Lander> XD! sorry
[15:25] <fsphil-laptop> ah
[15:25] <fsphil-laptop> phone would make more sense lol
[15:25] <Elmar_PD3EM> with the 2 km/h speed that sounds logical jonsowman
[15:25] <fsphil-laptop> that and that it's in the trees now
[15:25] <jonsowman> yes
[15:26] <Elmar_PD3EM> UpuMobile needs to climb 5 meters now
[15:26] <Lunar_Lander> fsphil-laptop, last night I wired the ublox GPS to my FTDI breakout and then left it running and when I came back from the kitchen like 20 minutes later, it actually figured out where it was!
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[15:26] <Randomskk> how long do we have until SHARP?
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[15:27] <Randomskk> no flippant answers :P
[15:27] <jonsowman> project_sharp: Inflating the balloon now, successful radio checks have been carried out on the ground, all seems ok for launch soon!
[15:27] <UpuMobile> payload located
[15:27] <number10_M0MDB> there is a nice footpath near to AVA and CLOUD http://imgur.com/wIkBK
[15:27] <UpuMobile> up a tree but should be getable
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[15:27] <Randomskk> jonsowman: that was how long ago?
[15:27] <UpuMobile> afk
[15:27] <eroomde> yo
[15:27] <Randomskk> UpuMobile: nice :D
[15:27] <jonsowman> Randomskk: 3 mins says twitter
[15:27] <Randomskk> hi eroomde
[15:27] <eroomde> back home now
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[15:27] <Randomskk> you missed all the tracking!
[15:27] <jonsowman> eroomde: just in time for sharp
[15:27] <eroomde> i know
[15:27] <eroomde> i was driving
[15:27] <Randomskk> well, SHARP later, but I guess you're home so not?
[15:27] <jonsowman> and by "just in time", i mean "you have hours"
[15:27] Action: Randomskk got a colinear
[15:27] <eroomde> i was watching on my ipad as i drove down the a34
[15:28] <eroomde> im in sussex without radio
[15:28] <Randomskk> sad :(
[15:28] <jonsowman> ah
[15:28] <eroomde> dont have ael yet set up for remote operation
[15:28] <eroomde> thats the plan for after easter
[15:28] <jonsowman> :)
[15:28] <Randomskk> how come?
[15:28] <Randomskk> all you need is the icom, an ftdi board, a minijack
[15:28] <eroomde> because biprop testing up till easter
[15:28] <Randomskk> fair enough I guess
[15:28] <eroomde> then holiday
[15:28] <Randomskk> but still it's pretty easy to set up for remote control
[15:29] <Randomskk> I really need to make a proper cable for it...
[15:29] <number10_M0MDB> daveake says cloud is reachable with pole
[15:29] <eroomde> i will get it all done soon, promise
[15:29] <eroomde> just off to france on wed
[15:29] <Lunar_Lander> fsphil-laptop, that actually was the first time that a GPS that I have obtained a lock
[15:29] <Randomskk> eroomde: what software do you plan to use on linux?
[15:29] <Randomskk> (if known)
[15:29] <Udin_SHARP> Randomskk hang on we are just getting an update from the launch team
[15:29] <jonsowman> Randomskk: we have to get a cusf tracking station
[15:29] <Randomskk> yea
[15:29] <DanielRichman> jonsowman: i thought you had one
[15:29] <eroomde> Randomskk: dunno about icom remote control yet
[15:29] <Randomskk> we have the track o tron
[15:29] <Randomskk> but it's deployed as needed
[15:29] <eroomde> and just vnc for fldigi
[15:30] <Randomskk> because we have to get permission and it's not a permanent structure
[15:30] <DanielRichman> ah
[15:30] <eroomde> i will tr and find one of those hamlib guis and maybe just do tha through vnc too
[15:30] <Randomskk> but it's super good when it is up
[15:30] <Randomskk> jonsowman: we could try and get it installed properly
[15:30] <eroomde> what i eventually want is to mod fldigi so it returnes the radio to tracker larger drifts
[15:30] <Randomskk> eroomde it already does that
[15:30] <number10_M0MDB> daveake says that they will try and pull cloud down with pole and hook , hoping that AVA will also come down too
[15:30] <jonsowman> can't it already do that?
[15:30] <eroomde> oh really?
[15:31] <Randomskk> yea
[15:31] <jonsowman> hamlib/rigcat
[15:31] <eroomde> so if the red crosshairs drift off the audio passband itll return the radio?
[15:31] <Randomskk> heck I had a python script doing that in like, first year
[15:31] <Randomskk> eroomde: yes
[15:31] <Randomskk> well you set where
[15:31] <Randomskk> I have 1k to 2k acceptable
[15:31] <Randomskk> if it goes out of that it retunes automatically
[15:31] <eroomde> oh wow!
[15:31] <eroomde> i had no idea that was built in
[15:31] <eroomde> thats great
[15:31] <jonsowman> it was really neat when you had it working Randomskk
[15:31] <Randomskk> it's a dl-fldigi feature
[15:31] <Randomskk> jonsowman: I think my one was better than what it does right now >_>
[15:31] <Randomskk> atm it retunes in a very big jump when it hits the edge
[15:32] <eroomde> because i cant really afford to babysit it when tracking during weekdays
[15:32] <Randomskk> I had a PID controller keeping it locked in the middle
[15:32] <jonsowman> Randomskk: yeah yours kept it constant on the w/fall
[15:32] <jonsowman> anyway yes
[15:32] <eroomde> Randomskk: is your script published somewhere?
[15:32] <fsphil-laptop> that would be better than mine
[15:32] <eroomde> sounds ideal
[15:32] <jonsowman> permanent-o-tron
[15:32] <Randomskk> maybe
[15:32] <Lunar_Lander> cyclotron!
[15:32] <jonsowman> no we don't want one of them
[15:32] <Randomskk> boom
[15:32] <Randomskk> https://gist.github.com/674384
[15:33] <eroomde> oh thas almost too easy
[15:33] <eroomde> good old hamlib
[15:33] <Randomskk> ikr
[15:33] <Randomskk> oh btw eroomde
[15:33] <Randomskk> my OS X fldigi doesn't have hamlib
[15:33] <Randomskk> let me know if you end up getting that working
[15:33] <Randomskk> as rigcat only does my icom at 600bd
[15:33] <Randomskk> which is v annoying
[15:33] <eroomde> ok
[15:33] <Randomskk> hamlib on my desktop'l go right up fast
[15:33] <eroomde> the pc is ubuntu
[15:33] <Randomskk> fair enough
[15:33] <fsphil-laptop> Randomskk, mind if I change the dl-fldigi version to do that?
[15:33] <eroomde> but ill try it on laptop
[15:33] <Randomskk> fsphil-laptop: please go ahead
[15:34] <Randomskk> might help it not break sentences when retuning
[15:34] <Randomskk> oh I said this was PID but it's clearly just P
[15:34] <Randomskk> oh well
[15:34] <jonsowman> it worked
[15:34] <Randomskk> fsphil-laptop: the only thing is
[15:34] <fsphil-laptop> close enough
[15:34] <Randomskk> unlike yours, this can go unstable
[15:34] <Randomskk> if you set the times wrong
[15:34] <cuddykid> have they been recovered?
[15:34] <fsphil-laptop> ah
[15:34] <Randomskk> and just cause it to oscillate bigger and bigger until it gets limited by baud rate or passband
[15:34] <Randomskk> it's fine with sensible times
[15:34] <Randomskk> it won't change
[15:34] <Randomskk> but worth bearing in mind
[15:35] <fsphil-laptop> I can have it adjust the radio towards 1500, at a speed relative to how far from 1500 it is
[15:35] <eroomde> cool cool
[15:35] <eroomde> i am loking forward to tring this
[15:35] <Randomskk> fsphil-laptop: I'd be even more careful doing that
[15:35] <Randomskk> that's if anything more likely to go a bit wrong
[15:35] <fsphil-laptop> or the hard way if it gets past the 1000 or 2000 limits
[15:35] <Lunar_Lander> fsphil-laptop, last night I wired the ublox GPS to my FTDI breakout and then left it running and when I came back from the kitchen like 20 minutes later, it actually figured out where it was!
[15:36] <Lunar_Lander> fsphil-laptop, that actually was the first time that a GPS that I have obtained a lock
[15:36] <Randomskk> fsphil-laptop: so what you just described would be P control
[15:36] <Randomskk> what I have is nearly P control but actually nonlinear in that it limits the maximum change per step
[15:36] <Randomskk> which also helps stop it going sad
[15:36] <cuddykid> I've had to start a new pcb - the last one was destroyed trying to remove v reg
[15:36] <fsphil-laptop> ah
[15:36] <fsphil-laptop> nice Lunar_Lander
[15:36] <eroomde> ndomskk thats not quite p
[15:36] <eroomde> cos you have a rate limit
[15:36] <eroomde> which introduces another pole
[15:36] <Randomskk> eroomde: that's what I just said :P
[15:36] <Randomskk> wait
[15:37] <Randomskk> which rate limit do you mean?
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[15:37] <Randomskk> the one in my script/
[15:37] <Randomskk> that makes it nonlinear rather than introducing a pole surely
[15:37] <Randomskk> but at any rate I did just own up to it not quite being P ;p
[15:37] <Lunar_Lander> fsphil-laptop, but trying to run the FSA03 example code doesn't work
[15:37] <Randomskk> however the script does work
[15:37] <eroomde> max_change
[15:37] <cuddykid> where is buzz?
[15:37] <Lunar_Lander> have to think about why it doesn't work
[15:37] <eroomde> but yes i dont doubt itworks nicely
[15:38] <navrac> buzz gone
[15:38] <cuddykid> oh :(
[15:38] <Randomskk> jonsowman: if we do it permanent
[15:38] <eroomde> am looking forwad to trying it!
[15:38] <Randomskk> definitely 4x long yagis with phasing
[15:38] <Randomskk> make it count
[15:38] <navrac> died at 24k feet
[15:38] <navrac> shortly after burst - probably got clouted with its own balloon
[15:38] <eroomde> i definitely want a yagi or two at ael on a rotator soon
[15:38] <eroomde> just gives you the achyou need
[15:39] <Randomskk> it is a lot more hassle than just a colinear though
[15:39] <Randomskk> I want to install this colinear properly somewhere
[15:39] <eroomde> but i need to have a coaxial relay to switch between yagis snd colinear for remote listening
[15:39] <Randomskk> atm it's clamped to two trekking poles and wedged into an open window
[15:39] <Randomskk> why?
[15:39] Action: mfa298 wonders if this means that Buzz went to infinity and beyond
[15:39] <jonsowman> lol
[15:39] <Randomskk> just make sure the yagis are also remote controllable?
[15:39] <eroomde> one radio
[15:40] <Randomskk> yea what I'm saying is why bother with the colinear?
[15:40] <eroomde> its easier to be able to just try out on a colinear
[15:40] <Randomskk> true
[15:40] <eroomde> yagis are a liability when tou get ver last and are looking for someting
[15:40] <Lunar_Lander> what does "achyou need" mean?
[15:40] <Randomskk> I guess that also means you can save the yagis for special occasions
[15:40] <Randomskk> "it's time... to turn on the yagis"
[15:40] <eroomde> i a typing on an ipad so will be making loads of mistkes sory
[15:41] <eroomde> Randomskk: was thinking of giving our array the nickname 'big gun'
[15:41] <Randomskk> hah
[15:41] <eroomde> and maybe announce im aout to use it with capital letters
[15:41] <Randomskk> jonsowman: I think we should wait for eroomde to get his rotator set up
[15:41] <Randomskk> and /then/ one-up it at cued
[15:41] <jonsowman> yeah ok
[15:41] <jonsowman> sounds good
[15:41] <Lunar_Lander> oh ok
[15:41] <eroomde> we can start an arms race
[15:41] <Randomskk> d'ya reckon CUED will be okay with using the 10m long 44el yagis? four of them perhaps?
[15:42] <jonsowman> dont see why not
[15:42] <Randomskk> maybe sixteen...
[15:42] <Udin_SHARP> etl 5min
[15:42] <Randomskk> a 4x4 array of 44els would have a wicked beam pattern
[15:42] <jonsowman> also terrifying
[15:42] <Udin_SHARP> we had some issues getting gps lock but it works again
[15:43] <Randomskk> the 44el ones are 20dBi each
[15:43] <jonsowman> :o
[15:43] <Randomskk> 1x2 is +3dB I believe
[15:43] <Randomskk> 2x2 is +3dB again
[15:43] <navrac> right - time to make a 70cm dish then...
[15:43] <griffonbot> @project_sharp: Ground tests completed, attaching the package to the balloon now. Launch imminent! #UKHAS [http://twitter.com/project_sharp/status/186116574346878976]
[15:43] <eroomde> so youd have 26db
[15:43] <eroomde> christ
[15:43] <Randomskk> I'm not sure how that scales to 4x4
[15:43] <jonsowman> lol
[15:44] <Randomskk> probably another 6dB? more?
[15:44] <Laurenceb_> same isnt it?
[15:44] <Laurenceb_> yeah
[15:44] <Laurenceb_> 32
[15:44] <eroomde> 3db more per doubling
[15:44] <Randomskk> per doubling of total number of antennas?
[15:44] <Randomskk> yea
[15:44] <jonsowman> one feels this may be excessive
[15:44] <Randomskk> so 2x2 is 4 antennas
[15:44] Nick change: Adam___ -> Adam012
[15:44] <jonsowman> and expensive
[15:44] <Randomskk> so okay, yea, another 7
[15:44] <Randomskk> 6*
[15:44] <jonsowman> :|
[15:44] <Randomskk> so yup 32dBi total
[15:44] <Randomskk> with a beam width the size of a human hair or something
[15:44] <fsphil-laptop> you'd hear my payload before I launch it
[15:45] <Randomskk> just one of them is 8.5 degrees
[15:45] <Randomskk> four halvings
[15:45] <jonsowman> sharp is nominally .650?
[15:45] <Randomskk> call it 8, then we're down to 2 degrees
[15:45] <cuddykid> another launch today?!
[15:45] <Randomskk> wait...
[15:45] <fsphil-laptop> Randomskk, yea
[15:45] <cuddykid> awesome
[15:45] <Randomskk> llol
[15:45] <fsphil-laptop> er, jonsowman even
[15:45] <Randomskk> 0.5 degrees
[15:45] <Randomskk> beam width
[15:45] <jonsowman> thanks
[15:45] <Randomskk> for -3dB point
[15:45] <Randomskk> might need a better rotator
[15:46] <Randomskk> also probably our rotator could not take 4 7.6m 16kg antennas
[15:46] <Randomskk> jesus
[15:46] <navrac> what are the green circles on spacenearus - i know the blue - but the green?
[15:46] <Randomskk> a 4x4 grid of these things would weigh 256kg
[15:46] <Laurenceb_> haha
[15:46] <jonsowman> navrac: green is 5 degree horizon
[15:46] <navrac> ah thanks
[15:46] <jonsowman> Randomskk: i dont think the azel could take it
[15:46] <Randomskk> I'm not sure the CUED lift could take 256kg of antenna
[15:47] <Randomskk> frankly I'd be a little worried for the roof structure
[15:47] <jonsowman> oh well, time to buy a new rotator
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[15:47] <Randomskk> yea I guess we'd better
[15:47] <Randomskk> I wonder if a dish is a better idea at this point
[15:47] <eroomde> can i have the old one bsck then
[15:47] <navrac> yep
[15:47] <Randomskk> eroomde: it's not ours, you know that :P
[15:47] <navrac> chicken wire and a lightweight frame
[15:47] <jonsowman> CUWS still ask after it
[15:47] <eroomde> theyll forget about it
[15:47] <Randomskk> eroomde: they don't
[15:47] <Randomskk> they are hams
[15:47] <Randomskk> they remind us every socfair
[15:48] <Laurenceb_> i know
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[15:48] <Randomskk> navrac: beats a quarter ton of antenna
[15:48] <Laurenceb_> why not just turn the entire roof into a phased array
[15:48] <eroomde> kill off martin atherton
[15:48] <Lunar_Lander> I got a cutdown question before I go to the kitchen
[15:48] <Randomskk> haha oh yes actually eroomde
[15:48] <jonsowman> eroomde: lol
[15:48] <Laurenceb_> using dvbt reveivers
[15:48] <Randomskk> just cover the roof in non resonant antennas
[15:48] <eroomde> collective memory will die with him
[15:48] <Lunar_Lander> is constantan wire also good?
[15:48] <Randomskk> then MUSIC
[15:48] <Randomskk> electronic beamform to the same gain
[15:48] <Randomskk> I see no issue
[15:48] <Randomskk> might need some very chunky cpu power
[15:49] <Randomskk> probably beyond a raspberry pi
[15:49] <Randomskk> maybe a cluster of them
[15:49] <Laurenceb_> more like fpga
[15:49] <Randomskk> one per antenna
[15:49] <Randomskk> covering the roof
[15:49] <Laurenceb_> oh dear
[15:49] <Randomskk> more like several fpgas
[15:49] <eroomde> yes an array wold win
[15:49] <Udin_SHARP> Did people manage to find buzz or just AVA?
[15:49] <jonsowman> buzz is lost afaik
[15:49] <eroomde> could track multiple balloons on the same freq at once
[15:49] <Randomskk> would be insane
[15:49] <eroomde> and get great snr
[15:50] <Randomskk> you could build the rtty decoder into the music stuff
[15:50] <Lunar_Lander> I got a cutdown question before I go to the kitchen
[15:50] <Lunar_Lander> is constantan wire also good?
[15:50] <Randomskk> it'd pick it out well below the noise floor I suspect
[15:50] <Lunar_Lander> or is nichrome better?
[15:50] <eroomde> Lunar_Lander: should be fine
[15:50] <Lunar_Lander> ok, thanks
[15:50] <Laurenceb_> is SHARP launching?
[15:50] <Mike_SHARP> imminently
[15:50] <fsphil-laptop> "yes"
[15:50] <jonsowman> "imminently"
[15:50] <fsphil-laptop> lol
[15:50] <Laurenceb_> cool
[15:50] <Laurenceb_> insane number of launches now
[15:50] <Lunar_Lander> ohh the train is imminent?
[15:51] <Lunar_Lander> *road traffic signals turn on*
[15:51] <fsphil-laptop> they've out-launched me in just a few weekends
[15:51] <Lunar_Lander> xD
[15:51] <Laurenceb_> actually...
[15:51] <eroomde> so how many flights this week anyone?
[15:51] <Laurenceb_> raspberrypi+dvbt dongle+ethernet
[15:51] <eroomde> 2 x cusf
[15:51] <eroomde> 2 x sharp
[15:51] <Laurenceb_> ==cheapish phased array?
[15:51] <Lunar_Lander> 2 daveake
[15:51] <Lunar_Lander> 1 Upu
[15:51] <Mike_SHARP> sharp dial freq: 434.64890
[15:51] <eroomde> 1 x picochu
[15:51] <Darkside> Lunar_Lander: how are you plnning on syncing the sample clocks
[15:51] <Mike_SHARP> 30 seconds
[15:52] <Lunar_Lander> Darkside, which clocks?
[15:52] <eroomde> thanks Mike_SHARP
[15:52] <eroomde> unfort ael out of action today
[15:52] <jonsowman> listening Mike_SHARP
[15:52] <Darkside> won't the ADC clocks need to be synced?
[15:52] <Laurenceb_> Darkside: use a in band generator
[15:52] <eroomde> Darkside: yes def
[15:52] <mfa298> probably more than that for SHARP launches, Isn't it Sun, Mon, Fri, Sat this week they've launched ?
[15:52] <Lunar_Lander> wait
[15:52] <Lunar_Lander> sorry, don't get the question
[15:52] <Laurenceb_> a local low power rx in a known position
[15:52] <Lunar_Lander> where do I need a ADC clock?
[15:52] <Darkside> Lunar_Lander: theyd need to be phase synchronous though
[15:52] <Darkside> to be best
[15:52] <Laurenceb_> he means me
[15:52] <eroomde> dont worry
[15:52] <Darkside> ffss
[15:52] <Darkside> damn autocomplete
[15:53] <Laurenceb_> lol
[15:53] <Darkside> Laurenceb_: phase synchronous clocks
[15:53] <Darkside> you'd probably be wanting that
[15:53] <Darkside> and that gets a whole lot harder
[15:53] <Laurenceb_> i think it might work with a local in band transmitter
[15:53] <Laurenceb_> yeah i guess
[15:53] <Darkside> its doable
[15:53] <Darkside> but difficult
[15:53] <Laurenceb_> so you need clk distribution
[15:53] <Darkside> yeah
[15:53] <Laurenceb_> more fibbly
[15:53] <Laurenceb_> *diddly
[15:53] <Laurenceb_> arg
[15:53] <Darkside> fiddly*
[15:53] <Laurenceb_> heh
[15:53] <eroomde> a bunch of coaxs the same lengthnfrom a single clock
[15:54] <Darkside> eroomde: and after-sample calibration
[15:54] <Laurenceb_> yeah
[15:54] <Laurenceb_> hacked onto raspberry pis
[15:54] <Laurenceb_> lol
[15:54] <Darkside> anyway, thats not going to happen with a dvbt dongle
[15:54] <Laurenceb_> yeah
[15:54] <Udin_SHARP> launch
[15:55] <Laurenceb_> cool
[15:55] <navrac> yep just saw it go up
[15:55] <Darkside> ok its 2:25am here, better get to sleep
[15:55] <Randomskk> uhm
[15:55] <Randomskk> oh nmv
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[15:56] <Randomskk> hmmm I think I saw SHARP for a second there
[15:56] <navrac> what was sharps shift?
[15:56] <Lunar_Lander> Udin_SHARP, what's onboard this time?
[15:56] <Randomskk> 325
[15:56] <navrac> ta
[15:56] <Laurenceb_> cd
[15:56] <Randomskk> blimey yes
[15:56] <Randomskk> decoding sharp
[15:57] <Randomskk> missed callsign in startup though
[15:57] <Morseman> Hi all - back home now
[15:57] <Darkside> Randomskk: COR BLIMEY
[15:57] <fsphil-laptop> on the colinera?
[15:57] <benoxley> dial freq?
[15:57] <Randomskk> poop
[15:57] <Randomskk> fsphil-laptop: yes
[15:57] <Morseman> Have I missed all the launches?
[15:57] <Randomskk> benoxley: 434 648 21
[15:57] <Randomskk> Morseman: no, sharp going up right now
[15:57] <fsphil-laptop> Morseman, just in time for the last one
[15:57] <Morseman> OK Ta
[15:57] <Randomskk> however all my packets are being corrupted right at the start
[15:57] <Randomskk> grr
[15:57] <fsphil-laptop> no preamble?
[15:57] <Randomskk> don't think so
[15:57] <benoxley> saw it for a moment
[15:57] <Randomskk> not long enough if so
[15:57] <Udin_SHARP> Lunar_Lander we are flying our panel deployment payload
[15:57] <Randomskk> benoxley: yea off right now
[15:57] <Randomskk> rxing I guess
[15:58] <Randomskk> damn, I was hoping to pick up a packet in those early ones
[15:58] <Randomskk> ffs
[15:58] <fsphil-laptop> you still using the .net thing Udin_SHARP?
[15:58] <griffonbot> @project_sharp: SHARP is in the air! 1200m and climbing! #UKHAS [http://twitter.com/project_sharp/status/186120232656580608]
[15:58] <Randomskk> R$SHARP,21,15:57:34,52.041721,-1.81442,1618,9,25.37,832.07,50*8191
[15:58] <Randomskk> that is very annoying
[15:58] <Randomskk> there we go
[15:58] <Randomskk> uploaded
[15:58] <fsphil-laptop> dl-fldigi shouldn't require all the $'s
[15:58] <Randomskk> at 1618 alt
[15:59] <navrac> just two isnt it?
[15:59] <Randomskk> actually
[15:59] <eroomde> a manual string entry form could be a nice feature Randomskk
[15:59] <number10_M0MDB> cloud has been recovered
[15:59] <fsphil-laptop> sweet!
[15:59] <fsphil-laptop> ava?
[15:59] <Udin_SHARP> fsphil yes we are....
[15:59] <jonsowman> USB for sharp?
[15:59] <Lunar_Lander> Udin_SHARP, what does the Panel Deployment do? I know that is a stupid question, but is that for payloads on which something must be moved/actuated?
[15:59] <G4DPZ> sharp telem spec please
[16:00] <number10_M0MDB> ava should be recovered soon - using scissors daveake says
[16:00] <navrac> just coming in here now - nothing decodable yey
[16:00] <fsphil-laptop> lol
[16:00] <Lunar_Lander> number10_M0MDB, how far from the wires did it land?
[16:00] <Morseman> Got it
[16:00] <Randomskk> 434 648 21, USB, 325Hz shift, 50 baud
[16:00] <Randomskk> it's on fldigi autoconf
[16:00] <Randomskk> 7n2
[16:00] <fsphil-laptop> G4DPZ, if you're in dl-fldigi you should see SHARP in the payload list
[16:00] <G4DPZ> ta
[16:00] <number10_M0MDB> dont kno Lunar_Lander just a short phone call from daveake
[16:01] <Mike_SHARP> Lunar_Lander: they're demonstrations of novel deployment methods for small spacecraft solar arrays
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[16:01] <Udin_SHARP> or antennas
[16:01] <Lunar_Lander> ah
[16:02] <G4DPZ> good lock, thanks
[16:03] <Lunar_Lander> btw
[16:03] <Lunar_Lander> I now ordered a 36" spherachute
[16:03] <fsphil-laptop> better get the weremutt fed and walked before this gets some altitude
[16:03] <eroomde> novel means something other than a recycled tape measure udin or michael?
[16:03] <fsphil-laptop> don't go cutting it down before I come back :p
[16:03] <Lunar_Lander> I calculated a final vertical descent of 3.7 m/s for a 400 g payload
[16:03] <Lunar_Lander> is that OK=
[16:03] <Lunar_Lander> ?
[16:03] <Randomskk> yea
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[16:03] <Lunar_Lander> what is the acceptable max. descent rate?
[16:03] <navrac> wheres sharp gone
[16:03] <Lunar_Lander> what would you say?
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[16:03] <Lunar_Lander> I'd say no more than 5 m/s
[16:03] <eroomde> Lunar_Lander: about 5
[16:03] <Lunar_Lander> yea
[16:03] <navrac> ah back...
[16:04] <Udin_SHARP> absolut max is 6ms
[16:04] <Randomskk> I take it 2E0KRB is with SHARP launch team?
[16:04] <jonsowman> that's andrew
[16:04] <navrac> first good packet
[16:04] <Mike_SHARP> eroomde: One is tape measure but hey that's legit! The other is memory metal alloy (nitinol)
[16:04] <Randomskk> benoxley: grr for this flight we are tied neck and neck so far :P
[16:04] <Udin_SHARP> Random yes he is
[16:04] <eroomde> Legit yes, but novel?
[16:04] <Randomskk> sadly SHARP only has one flight doc instead of one per flight so it'l all get lumped together
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[16:04] <navrac> 219km at 3540 feet
[16:04] <eroomde> nirinol sounds cool tho
[16:05] <Randomskk> fsphil-laptop: okay it does have a preamble
[16:05] <fsphil-laptop> cool
[16:05] <Randomskk> or that might be it replying to any uplinked command
[16:05] <fsphil-laptop> wonder why the problem earlier
[16:05] <Randomskk> at any rate immediately after power up it says FFFF
[16:05] <Mike_SHARP> for spacecraft it's fairly novel we think
[16:05] <jonsowman> good choice of preamble
[16:05] <jonsowman> sort of decoding
[16:05] <Randomskk> jonsowman: you should totes get a colinear
[16:05] <Randomskk> :D
[16:06] <Randomskk> also a radio
[16:06] <jonsowman> radio first
[16:06] <eroomde> totes
[16:06] <Mike_SHARP> eroomde: but the main point is to demonstrate the platform as a launch vehicle for other payloads
[16:06] <eroomde> people i
[16:06] <jonsowman> keeping an eye out for radios
[16:06] <Randomskk> eroomde: face it you are old and not up to date with the hip lingo
[16:06] <eroomde> cool
[16:06] <jonsowman> not found anything as yet
[16:06] <eroomde> jonsowman: icom!!
[16:06] <Randomskk> jonsowman: ic7000s are readily available new :P
[16:06] <number10_M0MDB> AVA recovered
[16:06] <jonsowman> oh dear the callsign just spelt a rude word.
[16:06] <fsphil-laptop> woo-hoo!
[16:07] <Randomskk> number10_M0MDB: :D
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[16:07] <eroomde> i use an icom and ft875 side by side at ael station
[16:07] <Udin_SHARP> congratulations number10
[16:07] <jonsowman> Randomskk: can't really justify £1000 on a radio
[16:07] <eroomde> def prefer the icom
[16:07] <number10_M0MDB> its not me - message from daveake
[16:07] <G4DPZ> ft-17 here
[16:07] <jonsowman> oh, $$PARP now
[16:07] Action: fsphil-laptop loves his ft857
[16:07] <G4DPZ> 817
[16:07] <eroomde> jonsowman: take advantage of dolar excshne rate
[16:07] <Randomskk> eroomde: I was at ml&s just this morning buying a colinear
[16:07] <Randomskk> the icom base stations are so nice
[16:07] <eroomde> i got mine fir about 600
[16:07] <Randomskk> basically the 7000 but with all the knobs and buttons
[16:07] <jonsowman> eroomde: from where?
[16:07] <Randomskk> instead of so many fincky menus
[16:08] <G0DJA> Prefer Kenwood myself - to each their own
[16:08] <number10_M0MDB> I cant imagine the contraption that they used - daveake said had scissors on a pole and some string
[16:08] <eroomde> Randomskk: yes rhat is nice
[16:08] <fsphil-laptop> hehe, sounds like what I did number10_M0MDB
[16:08] <TheoMC> what was the rude word guys?
[16:08] <eroomde> an ic 910 would rock
[16:08] <Randomskk> still the 7000 is so happily portable
[16:08] <TheoMC> :P
[16:08] <G4DPZ> you should see the ft-9000 at the national radio museum at bletchley!
[16:08] <eroomde> maybe get that for satt work a ael
[16:08] <Randomskk> what f does it go up to?
[16:08] <number10_M0MDB> you must put the metho on the wiki fsphil-laptop
[16:08] <Randomskk> jonsowman: if you can get an ic7000 for 600, totally worth it :P
[16:08] <number10_M0MDB> +d
[16:09] <jonsowman> eroomde: was the £600 an ebay job?
[16:09] <fsphil-laptop> there's a recovery page on the wiki?
[16:09] <Randomskk> jonsowman: I wonder if you can hear me if I tx out the colinear on 35W 434
[16:09] <jonsowman> i'd consider it for £600 yes
[16:09] <eroomde> Randomskk: 13cm i think
[16:09] <Elmar_PD3EM> I prefer the Yaesu for HF and Kenwood for mobile/APRS
[16:09] <Randomskk> eroomde: :o
[16:09] <Randomskk> teh sex
[16:09] <eroomde> jonsowman: no legit new
[16:09] <jonsowman> eroomde: from..?
[16:09] <Randomskk> form the US
[16:09] <eroomde> usa
[16:09] <Randomskk> hence dollar thing
[16:09] <eroomde> this was pre financial crisis
[16:09] <jonsowman> more specifically
[16:09] <eroomde> the world be different now
[16:09] <Randomskk> less innocent
[16:09] <eroomde> but still exchane rate is now getting good again
[16:09] <eroomde> like 1.7
[16:10] <jonsowman> nearly got a packet
[16:10] <jonsowman> there we go
[16:10] <Randomskk> I'm still annoyed that for the sake of a single leading $ sign I didn't get the 1216m packet
[16:10] <Randomskk> now I have to hope ASTRA drops one :P
[16:10] <jonsowman> eroomde: was shipping a lot?
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[16:10] <jonsowman> why hello andrew_apex
[16:10] <UpuMobile> payloads recoverted
[16:10] <Randomskk> UpuMobile: win :D
[16:10] <Randomskk> gj
[16:10] <jonsowman> nice one UpuMobile
[16:10] <Randomskk> any idea about buzz?
[16:10] <jonsowman> congrats
[16:11] <Elmar_PD3EM> Great UpuMobile !!!
[16:11] <UpuMobile> #buzz lost
[16:11] <Randomskk> :(
[16:11] <Randomskk> bah I keep getting R$
[16:11] <Randomskk> instead of $$
[16:11] <fsphil-laptop> lets hope a nice member of public finds and returns buzz
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[16:11] <andrew_apex> Hi jonsowman
[16:11] <jonsowman> Randomskk: squelch off?
[16:12] <Randomskk> nooo :(
[16:12] <Randomskk> yea it's off
[16:12] <UpuMobile> video on
[16:12] <jonsowman> hm
[16:12] <UpuMobile> live recovery cam
[16:12] <Randomskk> got the rest of the packet perfect
[16:12] <Randomskk> sad
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[16:13] <number10_M0MDB> excellent UpuMobile
[16:13] <priyesh> anyone know what happened to buzz?
[16:13] <priyesh> (just logged in)
[16:13] <Randomskk> hah sharp better not drift
[16:14] <Randomskk> I have notches on both sides and a really tight filter
[16:14] <fsphil-laptop> I see daveake!
[16:14] <Randomskk> there's almost no noise at all
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[16:15] <Bob_G8NSV> hi all what freq is sharp on please?
[16:15] <number10_M0MDB> 434.6474
[16:15] <Udin_SHARP> A quick question about predictions
[16:15] <Randomskk> 434 648
[16:15] <Bob_G8NSV> thanks
[16:16] <UpuMobile> photos recovered
[16:16] <Randomskk> nice :D
[16:16] <UpuMobile> going offline#
[16:16] <number10_M0MDB> well done UpuMobile
[16:16] <UpuMobile> thanks all
[16:16] <Udin_SHARP> Our CUSF prediction today is completely different from the spacenear
[16:16] <UpuMobile> much appreciated on behalf of dave and i
[16:16] <Udin_SHARP> which one do you reckon is more reliable?
[16:16] <Randomskk> lol I wonder if the spacenear data is recent
[16:16] UpuMobile (UpuMobile@ left irc:
[16:17] <Udin_SHARP> well the cusf just goes south and doesnt have the weird zigzag shape
[16:17] <Mike_SHARP> Randomskk: I agree, big deviation predicted by spacenear was experienced by earlier flights
[16:17] <Mike_SHARP> so I assume it has better data...
[16:17] <Randomskk> well both are the same predictor code
[16:17] <Randomskk> only difference is what wind data they have
[16:18] <Randomskk> cusf one should always have latest wind data
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[16:18] <Randomskk> so in theory is best, but
[16:18] <Randomskk> the spacenearus one uses current balloon position and rate data
[16:18] <Randomskk> so has more accurate balloon data
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[16:18] <griffonbot> @PD3EM: @AnthonyStirk Image from AVA recovery #UKHAS http://t.co/jAVlp0D7 [http://twitter.com/PD3EM/status/186125415428001792]
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[16:19] <Mike_SHARP> Randomskk: Thanks for the info
[16:19] <Randomskk> np
[16:19] <Randomskk> sharp seems to be doing better so far this time :P
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[16:21] <Randomskk> hmmm sharp is fading
[16:21] <Morseman> Right... Fingers crossed both PCs now settled down...
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[16:23] <jonsowman> yeah its not totally decodeable
[16:23] <jonsowman> most of the sentence but not all
[16:23] <Randomskk> still fine here
[16:23] <Randomskk> though I'm a bit closer to it than you are
[16:24] <Randomskk> and have a radio with a magical "make it better" button
[16:24] <Randomskk> aka pre-amp :D
[16:24] Action: LazyL_M0LEP is getting SHARP reasonably clearly
[16:24] <jonsowman> oh the slim jim is better
[16:24] <Randomskk> I suspect just because it's bigger and higher
[16:24] <Randomskk> makes up for the fact it's designed for a totally different f :P
[16:24] <jonsowman> probably
[16:24] <Udin_SHARP_> we made it above 10k
[16:24] <Udin_SHARP_> :)
[16:25] <Randomskk> without cutting yourselves down? :P
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[16:25] <Randomskk> hehe
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[16:25] <LazyL_M0LEP> bit of frequency wandering there...
[16:25] Nick change: Udin_SHARP_ -> Udin_SHARP
[16:25] <Randomskk> you got to 12k before though right?
[16:25] <Udin_SHARP> a little bit of a shock though
[16:25] <Randomskk> actually what is the highest SHARP's got to?
[16:25] <Randomskk> all I'm seeing here is 12k
[16:25] <Udin_SHARP> our cutdown reading increased from 50 to 58
[16:25] <jonsowman> i think 12k is the ublox's "no nav mode? haha goodbye" altitude
[16:26] <Randomskk> oh yea
[16:26] <Deaney_Mobile> Randomskk: That's because the camera has been activated!
[16:26] <Randomskk> that
[16:26] <Udin_SHARP> so something must have pinged the cutdown
[16:26] <Randomskk> the camera turning on changes the cutdown reading?
[16:26] <Deaney_Mobile> Yes
[16:26] <jonsowman> i.. see
[16:26] <Randomskk> okay
[16:26] <Randomskk> can people still make it cutdown just by sending some RTTY at it?
[16:26] <jonsowman> it wasnt even rtty
[16:26] <priyesh> Randomskk: try
[16:26] <jonsowman> it was just a carrier iirc
[16:27] <Randomskk> really? I'm pretty sure it had to be $$stuff
[16:27] <priyesh> yeah - it just had to get a signal i think
[16:27] <Randomskk> anyway I don't have my radio hooked up
[16:27] <Randomskk> for tx
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[16:27] <Randomskk> unless I can whistle the correct carrier
[16:27] <jonsowman> it caused it to crash if it /didn't/ start with $$
[16:27] <Randomskk> though my whistling cuts out at a few khz, getting to 434mhz would be sad
[16:27] <Randomskk> jonsowman: yea which implies that the correct command does start $$?
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[16:28] <jonsowman> well yes, but crashing the flight computer was the issue
[16:28] <Randomskk> jonsowman: I wonder if you can hear my on 434 USB on your slim jim from my colinear
[16:28] <jonsowman> $$SLARP
[16:28] <jonsowman> night
[16:28] <jonsowman> *nice
[16:28] <Randomskk> we couldn't work simplex before
[16:28] <jonsowman> Randomskk: is it a 2m/70cm?
[16:28] <jonsowman> if so we'd be better using 2m perhaps
[16:28] <Randomskk> yea the colinear is
[16:28] <Randomskk> probably actually
[16:28] <jonsowman> since this antenna is 2m
[16:29] <Randomskk> I was thinking more I could try it while you were trying to decode packets
[16:29] <Randomskk> but we could try it properly on 2m
[16:29] <jonsowman> lol go on then
[16:29] <Randomskk> ..nothing? aww. :(
[16:29] <jonsowman> nope
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[16:29] <jonsowman> decoding
[16:29] <Randomskk> yea I did it in the pause
[16:29] <jonsowman> nope
[16:29] <jonsowman> nothing heard
[16:30] <Randomskk> shame
[16:30] <G0DJA> Narrowing the filter right down using an SDR really messes up the DL-FLdigi S/N calculator!
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[16:30] <Randomskk> G0DJA: which way does it go?
[16:30] <navrac> makes it look really impressive though!
[16:30] <Randomskk> the fldigi SNR meter is a bit... unreliable
[16:30] <G0DJA> Right to the top - all green even on no signal
[16:30] <Randomskk> you can increase it by turning up the volume
[16:30] <Randomskk> sometimes
[16:30] <navrac> it cuts all the other noise outside the band so s/n looks really good#
[16:31] <Randomskk> fldigi doesn't know the RF or AF gain on the radio
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[16:31] <Randomskk> though in theory that should be okay
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[16:31] <Randomskk> oh well
[16:31] <Udin_SHARP> we are above 12k
[16:31] <navrac> 35db s/n here - without thenotch filters
[16:31] <Randomskk> well done
[16:31] <Randomskk> hmmm my audio just crapped out
[16:31] <navrac> 45db
[16:32] <navrac> 49
[16:32] <G0DJA> But I have trimed the filter to only a bit wider than the RTTY signal so I gues the SNR is based on at least a 1.5k audio bandwidth?
[16:32] <Randomskk> G0DJA: yea I guess so
[16:32] <Randomskk> what sdr are you using?
[16:33] <G0DJA> Perseus
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[16:33] <G0DJA> and HDSDR as the program
[16:33] <Randomskk> jonsowman: I was thinking an SDR might work better for a cusf remote tracking station
[16:34] <Randomskk> or generally for remote tracking stations
[16:34] <jonsowman> yes
[16:34] <griffonbot> @project_sharp: 12.5km and rising! This is the highest confirmed altitude from GPS, proves issues with the first launch have been fixed. #UKHAS [http://twitter.com/project_sharp/status/186129275827658752]
[16:34] <jonsowman> i think you might have a point
[16:34] <G0DJA> Seems to be coping OK and the TX signal from Sharp is stable enough at the moment
[16:34] <navrac> it does make it easy to rtrack
[16:34] <Randomskk> also potentially much cheaper
[16:34] <Randomskk> compared to even an 817
[16:34] <Randomskk> and I'd rather we don't leave the icom lying around
[16:34] <navrac> £118 all in isnt bad
[16:35] <jonsowman> agreed
[16:35] <Randomskk> that plus a raspberry pi could work
[16:35] <jonsowman> navrac: for which sdr? (sorry i've not been followig)
[16:35] <G4DPZ> funcube dongle could be a way to go, mine works fine, but i am biased :-)
[16:35] <jonsowman> hheh
[16:35] <Randomskk> fcd is an option too
[16:35] <Randomskk> doesn't it get sad if there is a lot of noise elsewhere?
[16:35] <navrac> funcube - 118 inc postage
[16:35] <jonsowman> ah
[16:35] <Randomskk> in the middle of a city it might be an issue
[16:35] <jonsowman> cool
[16:35] <G0DJA> Predicted to avoid Swindon again I see ;-)
[16:35] <Randomskk> could fit a filter I guess
[16:35] <jonsowman> CUED is pretty high
[16:36] <navrac> on 2m it can be an issue but up at 70cm its pretty good
[16:36] <Randomskk> yea but that just means it will pick up loads of stuff
[16:36] <Randomskk> from the whole city
[16:36] <jonsowman> not as high as some people's hills >.>
[16:36] <Randomskk> >.>
[16:36] Action: Randomskk blames cambridge
[16:36] <Randomskk> for being like 0m ASL
[16:36] <jonsowman> mm
[16:36] <G4DPZ> with my high gain 2m yagi, it works a treat but i do have an oscar class g/s
[16:36] <navrac> well there was a 2m/70cm cavity filter on ebay last week that went for £50 ish
[16:37] <Randomskk> g/s?
[16:37] <JM> Hi, JM back, Sharp is going to be heading up towards me (Bicester) - how to I upload dl-fldigi data to spacenear.us?
[16:37] <Randomskk> yea that might be worth a try
[16:37] <G4DPZ> ground station
[16:37] <Randomskk> JM: do you have dl-fldigi?
[16:37] <JM> yes
[16:37] <Randomskk> (weren't you tracking the previous flights?)
[16:37] <JM> yes
[16:37] <navrac> it should do automatically if you are on the net
[16:37] <Randomskk> yea
[16:37] <JM> OK
[16:37] <Randomskk> did you upload for the previous ones?
[16:37] <Randomskk> the status bar at the bottom should say like "uploaded payload telemetry successfully" or such
[16:37] <G0DJA> I've also been lent an SDR-IQ for /P with microwave tests
[16:37] <JM> I was picking up AVA well, but nothing appeared on the tracker
[16:38] <Randomskk> G4DPZ: ah okay
[16:38] <Randomskk> JM: what callsign do you have fldigi set to?
[16:38] <Randomskk> also on your DL Client menu
[16:38] <G0DJA> As that doesn't need a seperate DC power source
[16:38] <Randomskk> have you ticked Online?
[16:38] <JM> My vcallsign, G1WMK
[16:38] <Randomskk> (are you in --hab mode, actually?)
[16:39] <Randomskk> (does the top of your window show like, a dropdown of payloads to config, then decoded sentence info, then a green/red bar with the received sentence)
[16:39] <Randomskk> yea it doesn't look like you are uploading atm
[16:39] <JM> No idea, my first outing with the software. Will try all above
[16:39] <Randomskk> start dl-fldigi in hab mode if you haven't
[16:39] <Randomskk> that sorts out online automatically
[16:39] <Randomskk> then check online is ticked
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[16:39] <Randomskk> as soon as you receive a whole good sentence it should flag the bar at the top in green
[16:39] <G0DJA> Might need to close things down and consider a reboot - DL-FLdigi starting to get clunky again
[16:39] <Randomskk> and say "uploaded" in the status bar at the bottom
[16:40] <Randomskk> G0DJA: hopefully you shouldn't need to reboot the pc
[16:40] <G0DJA> I usually do...
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[16:40] <Randomskk> :/
[16:41] <G0DJA> Closing this browser
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[16:41] <JM> *ahem* ticked online. Waiting for decode and will see what happens.
[16:42] <fsphil-laptop> got a signal on my waterfall
[16:42] <Randomskk> JM: do you have the red/green bar?
[16:42] <Randomskk> and the "Auto-configure" button on the top line?
[16:42] <Udin_SHARP> upu
[16:42] <fsphil-laptop> getting partial telemetry
[16:42] <fsphil-laptop> $$SHRP
[16:42] <Udin_SHARP> the prediction hasnt updated in a while
[16:43] <andrew_apex> Can someone make it refresh? UPU?
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[16:44] <fsphil-laptop> missed a $ too
[16:44] <fsphil-laptop> $SARP
[16:44] <Randomskk> :( I was getting that
[16:45] <andrew_apex> Upu_work ^^?
[16:45] <Randomskk> hmm really need to work out how to mount this colinear somewhere properly
[16:45] <fsphil-laptop> has the GPS frozen?
[16:45] <fsphil-laptop> oh right, it repeats the same string three times
[16:45] <fsphil-laptop> got one
[16:45] <jonsowman> for some reason
[16:45] <fsphil-laptop> there is no preamble at all
[16:45] <Randomskk> fsphil-laptop: there is *FFFF after the off-time
[16:45] <jonsowman> it says FFFF
[16:46] <jonsowman> mm
[16:46] <Randomskk> but none before repeated sentences
[16:46] <jonsowman> sums it up really.
[16:46] <fsphil-laptop> does that count?
[16:46] <Randomskk> I think repeating the packets three times is perfectly reasonable
[16:46] <Randomskk> helpful even
[16:46] <fsphil-laptop> $$SH@RP :)
[16:46] <Randomskk> haha
[16:46] <Randomskk> oh no
[16:46] <jonsowman> Randomskk: what's the point
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[16:46] <jonsowman> why not new packets
[16:46] <Randomskk> jonsowman: means I count as receiving the packet even if I missed bits of one :D
[16:46] <jonsowman> lol
[16:46] <jonsowman> i see
[16:47] <andrew_apex> Jonsowman: just no...
[16:47] <jonsowman> andrew_apex: ?
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[16:47] <andrew_apex> New packets
[16:47] <jonsowman> mm, why not?
[16:47] <navrac> cusf shows it landing on the a4 between marlborough and hungerford
[16:48] <jonsowman> is this another "it's a gadgeteer so doing that would be like stabbing oneself in the eye?
[16:48] <jonsowman> "
[16:48] <andrew_apex> GPS can't be updated between packets
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[16:48] <Randomskk> ah I see
[16:48] <r2x0t> maybe you need gadgeteer ULTIMATE edition for that :P
[16:48] <Randomskk> yes
[16:48] <andrew_apex> You bet!
[16:48] <Deaney_Mobile> Ha ha
[16:48] <navrac> http://habhub.org/predict/#!/uuid=b36d557fe52e45c0daa5064abea2f405b22c74b7
[16:48] <fsphil-laptop> that's madness
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[16:48] <jonsowman> fff
[16:48] <fsphil-laptop> an AVR can do that :)
[16:48] <navrac> from 4 datasets ago
[16:49] <GW8RAK> Just got back and Sharp is extremely strong here
[16:49] <fsphil-laptop> arg, I keep forgetting about -j3 when building fldigi
[16:49] <fsphil-laptop> nice here too GW8RAK
[16:49] <GW8RAK> Evening Phil
[16:49] <fsphil-laptop> 456.4km away
[16:49] <GW8RAK> A good S9
[16:49] <fsphil-laptop> how's things down there GW8RAK
[16:50] <Randomskk> GW8RAK: what's your distance?
[16:50] <jonsowman> just creeping above 0dB SNR here
[16:50] <Randomskk> I'm 96km but S0
[16:50] <jonsowman> i should really put the whip somewhere else
[16:50] <fsphil-laptop> I don't think anything has ever registered on my S meter :)
[16:50] <Laurenceb_> heh the A40
[16:50] Action: jonsowman switches to vertical
[16:50] <Laurenceb_> that road is horrific
[16:50] <Randomskk> however fldigi's SNR is like 17dB
[16:50] <GW8RAK> Just finished getting tea cooking. Beef and sweet potato tagine :)
[16:50] <fsphil-laptop> yay, autotune
[16:50] <GW8RAK> Distance here is apparently 197km
[16:50] <Laurenceb_> takes ~1hour to get from oxford to witney
[16:50] <Randomskk> GW8RAK: grumble :p antenna?
[16:51] <GW8RAK> W300 colinear
[16:51] <Randomskk> :|
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[16:51] <fsphil-laptop> lol
[16:51] <Randomskk> I need to put my antenna higher up and with better coax >_>
[16:51] <GW8RAK> 15m of Westflex 103 to preamp
[16:51] <Randomskk> fsphil-laptop: freq tracking working?
[16:51] <fsphil-laptop> yea Randomskk
[16:51] <Randomskk> :D
[16:51] <fsphil-laptop> although as you say it broke the string
[16:51] <GW8RAK> Only 2 PL259s in sight :)
[16:51] <Randomskk> oh poo
[16:51] <fsphil-laptop> $CHRP
[16:51] <Randomskk> how much was it shifting?
[16:51] <Randomskk> GW8RAK: :(
[16:51] <jonsowman> $$CARP
[16:51] <jonsowman> lol
[16:51] <fsphil-laptop> you win
[16:52] <fsphil-laptop> 500hz Randomskk
[16:52] <Randomskk> I had to use RG58 in the end, couldn't strip the thicker stuff
[16:52] <Randomskk> fsphil-laptop: ?!
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[16:52] <GW8RAK> Once I stopped using the "solder through the holes" type of 259, things improved no end
[16:52] <Elmar_PD3EM> very faint signals here now at about 450 km distance... $SHAPh66|16:1`:0u,1.[467[901W132Z<,.*s,q0.-CU
[16:52] <Randomskk> fsphil-laptop: try 3Hz max per step
[16:52] <Randomskk> that's what I had
[16:52] <fsphil-laptop> Randomskk, oh this was the old code :)
[16:52] <Randomskk> GW8RAK: yea I'm going to make new patch lead for this antenna
[16:52] <Randomskk> fsphil-laptop: ooh I see
[16:52] <fsphil-laptop> it went from 2000hz to 1500
[16:53] <Randomskk> right yea I can see that breaking it
[16:53] <Randomskk> GW8RAK: with N connectors I think >_>
[16:53] <Morseman> N-Types are the only way to go...
[16:53] <Randomskk> are there good N connectors?
[16:53] <Lunar_Lander> hi GW8RAK
[16:53] <Randomskk> vs bad ones, I mean
[16:53] <Randomskk> I suspect my current patch lead is not helping matters
[16:53] <GW8RAK> I'll bore people silly with them, but the right angle entry gland type of 259s from Westlake Electronics are the dogs if you have to use 259.
[16:53] <GW8RAK> Hi Lunar_Lander.
[16:53] <Morseman> The ones at Rallies are often cheap and pull off and also have poor insulation in them
[16:53] <Randomskk> GW8RAK: what are the good N ones though?
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[16:54] <Morseman> Try to get the silvered ones with the 'top hat' ferrul that pushes into the outer sheath and connects to the braid
[16:54] <GW8RAK> Most N's are respectable I think. Not enough demand for the Chinese to produce cheap rubbish
[16:54] <cuddykid> is red +ve?
[16:54] <cuddykid> (as in wiring)
[16:54] <Morseman> M@plins are not so good IMO :-(
[16:55] <Laurenceb_> not if you wired it up wrong
[16:55] <jonsowman> 4
[16:55] <navrac> mr shifty again
[16:55] <jonsowman> ignore the 4
[16:55] <Morseman> Rats - got to retune
[16:55] <GW8RAK> http://www.powabeamantennas.co.uk/westlake-pdf/connectors-components.pdf is where I get connectors from.
[16:55] <GW8RAK> Maplins only stock cheap ones
[16:55] <Laurenceb_> you cant fight rats by retuning
[16:56] <Laurenceb_> you need rat poison
[16:56] <fsphil-laptop> signal has gotten a lot weaker now
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[16:56] <jonsowman> 19k
[16:56] <jonsowman> just above the noise floor on the slim jim
[16:57] <jonsowman> very decodable though
[16:57] <Morseman> Nothing wrong with the decodes! I just dropped off the list after all good decodes...
[16:57] <Randomskk> down to about 13dB on dlfdigi
[16:57] <Morseman> I've recentred sig anyway
[16:57] <fsphil-laptop> -7 dB here
[16:57] <jonsowman> 1dB \o/
[16:58] <Randomskk> 16dB
[16:58] <Randomskk> lol
[16:58] <fsphil-laptop> meh
[16:58] <Randomskk> shit
[16:58] <fsphil-laptop> I so need a preamp
[16:58] <fsphil-laptop> that's my project this summer
[16:58] <fsphil-laptop> yagi and preamp
[16:58] <fsphil-laptop> on the roof
[16:58] <GW8RAK> G0MRF's have got easier to build
[16:58] <Udin_SHARP> is it possible to change the predicted burst altitude on the tracker
[16:58] <Randomskk> all I have to do is touch the usb connector to my sound card and it breaks
[16:58] <Randomskk> :|
[16:59] <fsphil-laptop> if we're going to have an arms race, I'll have to improve things :)
[16:59] <Randomskk> :P
[16:59] <JM> Thanks chaps, I'm now uploading. I was also stuck at 8 bit from AVA and Sharp seems to be 7 bit
[16:59] <jonsowman> Udin_SHARP: yeah, what do you want?
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[16:59] <Randomskk> JM: aah
[16:59] <jonsowman> JM: use autoconfigure
[16:59] <Randomskk> JM: if you select SHARP from the dropdown at the top
[16:59] <Randomskk> and click Auto-configure
[16:59] <Randomskk> it sets all that for you
[16:59] <Morseman> The ones for EcoFlex put people off...
[16:59] <Elmar_PD3EM> JM: your on the list of uploaders now :-)
[16:59] <GW8RAK> Rather than a big vertical yagi for HAB'ing, I'm wondering about 2 smaller ones on a frame on a rotator to change polarisation
[16:59] <JM> :-)
[17:00] <Udin_SHARP> jonsnowman 28k would be more accurate
[17:00] <fsphil-laptop> pretty much 20km
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[17:00] <GW8RAK> Or 4 yagis?
[17:00] <Morseman> fsphil-laptop watch out that not too much gain - will just amplify the noise as well...
[17:00] <ajwillink> Hola all
[17:00] <Deaney_Mobile> jonsowman it's programmed to cutdown at 28.5km
[17:00] <Graeme_SHARP> Looking for an increment of 69 on the next decode to reflect deployment of the scientific payload
[17:00] <jonsowman> Deaney_Mobile: alright, hold up
[17:01] <ajwillink> Was wondering if anyone has a chance of adding to a payload at some point?
[17:01] <Randomskk> ajwillink: yea
[17:01] <jonsowman> Deaney_Mobile: done
[17:01] <ajwillink> oh cool
[17:01] <Randomskk> put the flight doc on pastebin or something and point me or someone at it
[17:01] <fsphil-laptop> 470km distance now
[17:01] <Randomskk> my usb sound card has a ton of latency
[17:01] <ajwillink> would love to join with someone before I do my own
[17:01] <Deaney_Mobile> Thanks!
[17:02] <Randomskk> ajwillink: oh wait, sorry
[17:02] <Randomskk> I misread you
[17:02] <Randomskk> and thought you meant add a payload to the tracker
[17:02] <Randomskk> however
[17:02] <Randomskk> where are you?
[17:02] <fsphil-laptop> I love that 10mw can be received that distance
[17:02] <ajwillink> I am near gatwick
[17:02] <ajwillink> area
[17:02] <navrac> still 58 sorry
[17:02] <griffonbot> @project_sharp: 20km and rising! #UKHAS [http://twitter.com/project_sharp/status/186136394341679104]
[17:02] <fsphil-laptop> signal is -3dB now
[17:02] <ajwillink> I just got a 300g balloon
[17:02] <ajwillink> and parachute
[17:02] <jonsowman> up to 10dB here
[17:02] <Morseman> I've dropped off the list again
[17:03] <Randomskk> ajwillink: jonsowman and I run the CUSF launch site in cambridge if you wanted to launch from there; if you want to attach a payload to another launch then you'd probably be welcome for most of ours but we don't have any planned short term
[17:03] <Randomskk> so maybe just post to the ukhas mailing list and see if anyone is lauching soon
[17:03] <Randomskk> nearby
[17:03] <Lunar_Lander> yay, Udin_SHARP Mike_SHARP congratulations for entering the stratosphere
[17:03] <Graeme_SHARP> :)
[17:03] <Lunar_Lander> well, the first flight got there too, but we got no record
[17:03] <Udin_SHARP> cheers Lunar
[17:03] <ajwillink> Awesome, I have friends in Cambridge and would love to spend a weekend there
[17:03] <Lunar_Lander> but now we can see it
[17:03] <Lunar_Lander> you're welcome :)
[17:04] <fsphil-laptop> signal is 0dB now
[17:04] <Laurenceb_> why did predicted burst suddenly go down?
[17:04] <fsphil-laptop> improving quickly
[17:04] <ajwillink> Will post on the mailing list
[17:04] <Randomskk> Laurenceb_: updated the scenario
[17:04] <Udin_SHARP> because we told it to...
[17:04] <Randomskk> it will cut down
[17:04] <Laurenceb_> ah
[17:04] <Laurenceb_> boring
[17:04] <Randomskk> okay fine
[17:04] <Lunar_Lander> what is the commanded altitude?
[17:04] <Randomskk> that was a cover story
[17:04] <Randomskk> actually it's to hide the fact that I'm testing my secret balloon intercetor guided missile program
[17:04] <cuddykid> woohoo - power on the new pcb is working :D
[17:04] <Lunar_Lander> and what does "Cutdown = 58" mean?
[17:04] <Laurenceb_> ah
[17:04] <Randomskk> and impact is predicted at 28.5k
[17:05] <Randomskk> missiles are ready and rf homing on 434mhz
[17:05] <Randomskk> don't try and unlock your car
[17:05] <jonsowman> :o
[17:05] <Laurenceb_> lol
[17:06] <navrac> and we're sorry if an oil delivery van turns up even if your tanks full
[17:06] <navrac> 127 deployed?
[17:06] <Udin_SHARP> yes navrac
[17:06] <Udin_SHARP> It looks like we have deployment
[17:07] <Laurenceb_> :O
[17:07] <jonsowman> what's deployed?
[17:07] <Deaney_Mobile> Lunar_Lander it's a status code. Should be telling us that the camera was activated and now that the scientific payload has been deployed
[17:07] <navrac> 5 mins late - thatys pretty good for sharp
[17:07] <Laurenceb_> the missile
[17:07] <Udin_SHARP> :D
[17:07] <jonsowman> oh god
[17:07] Action: Laurenceb_ retreats to nuclear bunker
[17:07] <TheoMC> a mock up of solar panels
[17:07] <jonsowman> ah
[17:07] <JM> Is there any info as to payload? Flight computer, GPS module, etc?
[17:07] <jonsowman> speaking of which
[17:07] <jonsowman> my roof is a lot less RF transparent now that it's covered in solar panels
[17:07] <griffonbot> @AnthonyStirk: Both Ava & Cloud recovered thanks to all #ukhas for tracking now having a curry in Dorking [http://twitter.com/AnthonyStirk/status/186137755821154304]
[17:07] <jonsowman> :(
[17:08] <Randomskk> jonsowman: lol
[17:08] <Randomskk> haha the post-recovery curry
[17:08] <Randomskk> nice
[17:08] <jonsowman> heh
[17:08] <Randomskk> you guys really missed out on the post-recovery food on weds franky
[17:08] <jonsowman> post recovery sunday roast was better imo
[17:08] <Randomskk> my chicken burger at the pub was good
[17:08] <Randomskk> the sunday roast was great
[17:08] <jonsowman> brb, i smell food
[17:09] <Morseman> So what did it deploy?
[17:09] <Deaney_Mobile> Some mockup solar panels
[17:10] <Laurenceb_> wow, 19 receivers
[17:10] <Morseman> Ah, so the next one will have real solar panels then?
[17:12] <Udin_SHARP> could be Morseman
[17:12] <fsphil-laptop> shame it's going to cut-down shortly :)
[17:12] <fsphil-laptop> this is a good signal
[17:12] <Graeme_SHARP> The deployment is a test one that can be used on cubsats - this is a analagous test for it raising the TRL
[17:12] <Morseman> I'm recording audio on DL-FLdigi so be interesting to see if get any dopler
[17:13] <Deaney_Mobile> fsphil-laptop didn't want it landing in the sea!
[17:13] <fsphil-laptop> oh yea, the sea
[17:13] <fsphil-laptop> I keep forgetting about that
[17:13] <fsphil-laptop> which might be my problem tbh
[17:13] <Udin_SHARP> putting panels on a balloon makes only really sense for long duration floaters
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[17:13] <Morseman> Could have dropped it back home in Southampton?
[17:13] <Graham_G3VZV_> ah - depeploable solar cells on cubesats - the quest for MORE power goes on:)
[17:14] <Deaney_Mobile> Morseman that would have been ideal!
[17:14] <fsphil-laptop> the signal wobbling like that, is that a power supply issue?
[17:15] <fsphil-laptop> it's too regular to be temperature drift
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[17:15] <Morseman> The waggonwheel of receivers is good - Only Devon and Cornwall missing...
[17:16] <fsphil-laptop> sharp guys, this should totally have a live image downlink so we can see the panels :)
[17:17] <Deaney_Mobile> fsphil-laptop there was a camera pointing at them, but no downlink :(
[17:17] <Graeme_SHARP> There is 50-50 chance it was recoreded on video (a few teething problems with camera just before launch)
[17:17] <fsphil-laptop> hope so
[17:18] <fsphil-laptop> what's the cut-down alt?
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[17:18] <Deaney_Mobile> 28500m plus a little bit
[17:18] <Deaney_Mobile> It h
[17:19] <Deaney_Mobile> It has some gps error protection written in
[17:19] <fsphil-laptop> smart
[17:19] <Udin_SHARP> fsphil batteries should be fine
[17:19] <Laurenceb_> 20 receivers
[17:19] <Laurenceb_> new record?
[17:20] <fsphil-laptop> 0dB still, getting good decodes
[17:20] <Udin_SHARP> I am not if they have put in new batteries or are reusing some from our previous short launch
[17:20] <Morseman> I've widened the audio bandwidth and the SNR seems to have started working again
[17:20] <Morseman> Can see the 'wobble' as well
[17:20] <Deaney_Mobile> All brand new
[17:20] <fsphil-laptop> yea
[17:20] <fsphil-laptop> the wobble is worse towards the end of each string
[17:21] Udin_SHARP_ (~chatzilla@2001:630:d0:ed03:6cf2:8633:7a27:3d63) joined #highaltitude.
[17:22] <fsphil-laptop> 26.6
[17:22] <Graham_G3VZV_> i would still suggest the slight frequenciy wobble s are due to Mr Doppler and the radio swinging around a bit
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[17:22] <fsphil-laptop> not so sure, or it would be more random
[17:24] <fsphil-laptop> in saying that, there wasn't as much that time
[17:24] <fsphil-laptop> if it was doppler we'd all see a different pattern
[17:24] <Laurenceb_> radio swinging woulnt cause much doppler
[17:24] <Laurenceb_> few hz
[17:24] <griffonbot> Received email: awillink "[UKHAS] "Pebble space" Anyone Got space for 100g on a payload?"
[17:24] <fsphil-laptop> anyone else capturing it?
[17:24] <Randomskk> super subtle antenna
[17:25] <Randomskk> http://www.flickr.com/photos/randomskk/6886399862/in/photostream
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[17:25] Nick change: Udin_SHARP_ -> Udin_SHARP
[17:25] <Randomskk> it helps that it's white and the day is overcast :P
[17:25] <fsphil-laptop> lol
[17:25] <fsphil-laptop> love it
[17:26] <F1LPT> good signal to decoding
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[17:27] <fsphil-laptop> cut-down imminent
[17:27] <Bob_G8NSV> is it possible the wobbles are caused by reflections from aircraft? this phenomena led Watso Watt to invent radar.
[17:28] <F1LPT> but swinging on frequency
[17:28] <Graham_G3VZV_> if you look at a closeup of the recent ground track there have some wiggles in it ....
[17:28] <Deaney_Mobile> fsphil-laptop should be about 5-7mins after it reaches 28.5km
[17:28] <fsphil-laptop> if someone at a different bearing can record it, we can compare
[17:28] <Bob_G8NSV> you would get sufficient doppler from an aircraft reflection and there are dozens of them up there
[17:28] <fsphil-laptop> if its the same then the wobble is voltage
[17:28] <fsphil-laptop> or temperature
[17:28] <Matt_soton> any reason for cutdown?
[17:28] <Matt_soton> also have you done uplink test?
[17:28] <Elmar_PD3EM> still no good decode here: $SHAPh66|16:1`:0u,1.[467[901W132Z<,.*s,q0.-CU
[17:29] <Deaney_Mobile> Matt_soton to stop it Landing in the sea
[17:29] <Elmar_PD3EM> $$SHARP,98,17:27:25,51.63970l-1.62726,28548,9,,27*6D02
[17:29] <Matt_soton> oh i see
[17:29] <fsphil-laptop> 4dB SNR nice
[17:29] <Matt_soton> try cutting it down manually
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[17:29] <Matt_soton> or i suppose pinging it would do
[17:29] <Udin_SHARP> voltage input will be constant
[17:30] <fsphil-laptop> I bet it isn't
[17:30] <Udin_SHARP> we have regulation on the batteries
[17:30] <jonsowman> burst?
[17:30] <jonsowman> well
[17:30] <jonsowman> cutdown
[17:30] <jonsowman> yeah
[17:30] <fsphil-laptop> yea
[17:30] <fsphil-laptop> down she goes
[17:30] <number10_M0MDB> yes
[17:30] <jonsowman> could hear it as soon as that packet started
[17:30] <SamSilver> pop! sharp decline in altitude
[17:30] <navrac__> yep
[17:30] <Deaney_Mobile> Burst not cutdown!
[17:30] <jonsowman> Deaney_Mobile: oh really?
[17:30] <fsphil-laptop> the balloon wins
[17:31] <Matt_soton> so will it cutdown to remove balloon fragments in a bit?
[17:31] <SamSilver> cutdown still at 127 ??
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[17:31] <jonsowman> ah
[17:31] <navrac__> i thought the cutdown was for 28 and a bit
[17:31] <Deaney_Mobile> Cutdown should occur due to drop detection in about 5 mins check the cutdown status
[17:31] <Udin_SHARP> Yes Matt
[17:31] <SamSilver> 28 + 69
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[17:35] <F1LPT> tomorrow other balloon ????
[17:35] <SamSilver> Tommo: cutdown it the seperation of the balloon from the payload
[17:36] <Laurenceb_> its a bit slow
[17:36] <jonsowman> agreed Laurenceb_
[17:36] <Tommo> thanks, found out about this on pistonheads. i'ts piqued my interest
[17:36] <jonsowman> pistonheads..?!
[17:36] <number10_M0MDB> F1LPT: I think navrac is doing a pico baloon
[17:36] <Laurenceb_> jonsowman: modified car forum
[17:37] <navrac__> thats next week
[17:37] <jonsowman> yeah, just wondered what #ha is doing on PH
[17:37] <number10_M0MDB> ok sorry
[17:37] <navrac__> yeah bit weird pistonheads - probably a review of daveakes caar mods...
[17:38] <jonsowman> lol
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[17:38] <F1LPT> thks for information ......go to lunch ....have a nice day
[17:38] <number10_M0MDB> next week F1LPT .. bye
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[17:42] <Lunar_Lander> what does Cutdown = 169 mean?
[17:42] <Laurenceb_> i think they need to drive up the road a bit
[17:42] <Deaney_Mobile> Lunar_Lander: It's a combination of camera and payload activated and cutdown fired
[17:42] <Lunar_Lander> ah
[17:43] <Deaney_Mobile> Laurenceb_: We are moving again!
[17:43] <Lunar_Lander> so cutdown fired is 9?
[17:43] <Lunar_Lander> as it was 58 before
[17:43] <Laurenceb_> bonus points if you catch it
[17:43] <Deaney_Mobile> Then it went to 168 for payload deployment
[17:43] <Lunar_Lander> yes
[17:44] <Deaney_Mobile> Then it burst, a fall was detected and cutdown fired hence 169
[17:44] <jonsowman> are these numbers totally arbitrary?
[17:44] <Udin_SHARP> cutdown fired is add 50
[17:44] <Udin_SHARP> successful deployment is add 69
[17:45] <Lunar_Lander> ah
[17:45] <Graeme_SHARP> 42 (In Flight Mode) + 8 (Video Camera Initialised) + 8 (Video Camera Recording) + 69 (Payload Deployed) + Something (Cutdown)
[17:45] <Deaney_Mobile> Its 50 if command was sent by us
[17:45] <Lunar_Lander> ah
[17:46] <r2x0t> heh... why so complicated? :)
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[17:46] <Laurenceb_> BECAUSE THEY CAN
[17:46] <r2x0t> if you used bit flags, it would be much more clear...
[17:46] <andrew_apex> Ready to catch SHARP!
[17:46] <r2x0t> lol... I guess so
[17:47] <Deaney_Mobile> Cutdown is 50 for sent command and 42 if the box decided to cutdown
[17:47] <priyesh> andrew_apex: video of landing please
[17:47] <Matt_soton> andrew_apex: itll probably fall short of you
[17:48] <Randomskk> bah it drifted off my passband while I was not ooking
[17:48] <Randomskk> suck
[17:49] <Deaney_Mobile> Closing in on it...
[17:49] <Laurenceb_> Deaney_Mobile: windspeed usually drops near the ground
[17:50] <Laurenceb_> Deaney_Mobile: so the predictor tend to overshoot a little at the end
[17:50] <Deaney_Mobile> We have andrew_apex in the car and has assumed as much
[17:51] <Deaney_Mobile> Just trying to refresh the prediction but very slow GPRS
[17:52] <Laurenceb_> id head north until you reach a T junction
[17:52] <Laurenceb_> and wait there maybe
[17:52] <Laurenceb_> ~1Km
[17:52] <Deaney_Mobile> Moving now
[17:53] <Laurenceb_> 5.2Km up now
[17:54] <Laurenceb_> looks like it may head into area with no roads :S
[17:54] <Udin_SHARP> hmmm it is coming down pretty quick still
[17:54] <Deaney_Mobile> At t junction
[17:55] <priyesh> Deaney_Mobile: make sure to grab a video of the descent!
[17:55] <Deaney_Mobile> Will try!
[17:55] <priyesh> it's something few get to see :(
[17:55] <priyesh> :D
[17:55] <Randomskk> a video of landing would be ace
[17:55] <Deaney_Mobile> Moving again
[17:55] <Randomskk> a video of you catching it wins several hab points
[17:56] <jonsowman> 1000 i think was earlier agreed
[17:56] <priyesh> Randomskk: a video of them driving with the sunroof open to catch it is 2000
[17:56] <priyesh> (successfully catching)
[17:56] <Udin_SHARP> its drifting east
[17:56] <jonsowman> priyesh: http://www.youtube.com/watch?v=8ZyGMKpgyHA
[17:56] <Randomskk> catching through the sun roof is worth very many points
[17:56] <Laurenceb_> nice
[17:56] <Laurenceb_> almost spot in position now
[17:56] <priyesh> Randomskk: can we make a hab points leaderboard?
[17:56] <Deaney_Mobile> No sunroof :(
[17:57] <Randomskk> priyesh: remember how a few minutes ago you pointed out that it's open source
[17:57] <Randomskk> and anyone can write code
[17:57] <Randomskk> I will accept pull reqs for a hab points leaderboard
[17:57] <Randomskk> incidentally that is a planned feature yes
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[17:57] <Matt_soton> still not as awesome when myself and jonsowman so almost saw it land, but with no internet access and so no predictor
[17:57] <Matt_soton> foiled by a closed road :(
[17:57] <jonsowman> :D
[17:57] <Laurenceb_> lol intersecting path now
[17:57] <jonsowman> i know
[17:57] <Randomskk> it's not like we weren't texting you positions :P
[17:57] <Matt_soton> you didnt the first time
[17:57] <priyesh> :D
[17:57] <jonsowman> Randomskk: you weren't
[17:57] <Morseman> Lost Sharp at 6540m - Last decode 1st of the three that TX period
[17:58] <jonsowman> we had a single predicted spot from before launch
[17:58] <Randomskk> oh hm
[17:58] <navrac> loosig it now - SHA$
[17:58] <jonsowman> you sent us positions for wombat
[17:58] <jonsowman> which was helpful
[17:58] <jonsowman> since we couldn't really decode it
[17:58] <Matt_soton> we would have found it, but nothing wrong iwth redundancy
[17:58] <Randomskk> indeed
[17:58] <jonsowman> gsm tracker \o/
[17:58] <Randomskk> then again wombat texted you anyway ;P
[17:58] <Randomskk> yea
[17:58] <Randomskk> happy that it actually worked
[17:58] <jonsowman> me too
[17:58] <Randomskk> below 3k now
[17:59] <Randomskk> let's see how far down I can go with the colinear
[17:59] <Randomskk> :o
[17:59] <Randomskk> it looks a treat too
[17:59] <Randomskk> pretty antenna. the ground radials are cool
[17:59] <Graham_G3VZV_> still +10db with mine
[17:59] <Randomskk> need thicker coax >_>
[17:59] <Udin_SHARP> just made bets on final descent rate
[17:59] <Randomskk> 14B SNR in fldigi
[17:59] <Randomskk> S0 though
[18:00] <Randomskk> poo, 50 baud packets combined with three-packets-per-gps-position does mean that getting a low altitude packet will be very tricky
[18:00] <Randomskk> also long rx periods
[18:00] <Randomskk> it's a long time between new heights
[18:00] <jonsowman> gone for me
[18:00] <Randomskk> 500m per new position
[18:00] <Laurenceb_> landing in 5 minutes
[18:00] <benoxley> s0 here but decoding
[18:00] <Randomskk> so my next will be 1300 if I can get it
[18:00] <jonsowman> can see it on waterfall but well below the noise floor
[18:00] <Randomskk> and then 800...
[18:01] <Randomskk> and in theory then 300
[18:01] <jonsowman> then -200
[18:01] <Randomskk> yup
[18:01] <benoxley> one last decode, come on!
[18:01] <Randomskk> and then -700 etc
[18:01] <jonsowman> if it lands in a mineshaft
[18:01] <Randomskk> come on turn on again you bastards
[18:01] <Randomskk> yay
[18:01] <Randomskk> geting quiet
[18:01] <Randomskk> woop got 1366
[18:02] <Bob_G8NSV> I still have it but to weak to decode clear on the waterfall
[18:02] <Randomskk> got the second 1300 packet ok
[18:02] <Randomskk> quieter and quieter
[18:02] <Lunar_Lander> can I interject a electrics question?
[18:02] <Randomskk> got third packet ok
[18:02] <Randomskk> come on 800m
[18:02] <Randomskk> key up already...
[18:02] <Randomskk> hello
[18:02] <Randomskk> oh man super quiet :(
[18:02] <Randomskk> SH@RP
[18:02] <benoxley> very quiet now
[18:02] <Randomskk> meh it's partially decoding
[18:02] <benoxley> 882m
[18:03] <Graham_G3VZV_> 882
[18:03] <benoxley> dying now
[18:03] <Bob_G8NSV> gone here
[18:03] <Randomskk> yea I'm not getting this
[18:03] <Randomskk> still see it ok
[18:03] <Randomskk> but no decode
[18:03] <benoxley> got a decode :D
[18:03] <Randomskk> bastard :D
[18:03] <Randomskk> not holding out any hopes for 300m
[18:03] <benoxley> yeah...
[18:03] <Laurenceb_> need to head east
[18:03] <navrac> lots of copses and woods on the map near the landing site
[18:03] <Matt_soton> andrew has internet however
[18:04] <Randomskk> yea it should be on again by now
[18:04] <Randomskk> nothing
[18:04] <Laurenceb_> Deaney_Mobile: head ~200m east
[18:04] <Randomskk> guess that's it for me
[18:04] <benoxley> nothing...
[18:04] <priyesh> they must be able to see it now
[18:04] <Randomskk> yup nothing
[18:04] <r2x0t> map updated
[18:04] <Randomskk> baww
[18:04] <Laurenceb_> ooh close
[18:04] <Laurenceb_> must be down now
[18:04] <Randomskk> gotta get this antenna higher up :P
[18:04] <priyesh> and down now...
[18:04] <Deaney_Mobile> Almost caught
[18:04] <priyesh> Deaney_Mobile: saw it come down?
[18:04] <Deaney_Mobile> We got video
[18:05] <priyesh> woo
[18:05] <Randomskk> :D
[18:05] <priyesh> :D
[18:05] <Randomskk> good job
[18:05] <Randomskk> but no catching :P
[18:05] <Udin_SHARP> nice
[18:05] <navrac> cool
[18:05] <Randomskk> so only a handful of hab points :P
[18:05] <Bob_G8NSV> well done!!
[18:05] <Deaney_Mobile> Pretty shaky blurry video
[18:05] <Mike_SHARP> awesome!
[18:05] <jonsowman> hehe
[18:05] <Deaney_Mobile> But video none the less!
[18:05] <TheoMC> nice!!!
[18:05] <navrac> easier recovery than last time
[18:05] <Randomskk> hehe
[18:05] <Deaney_Mobile> Oh yes!
[18:05] <Laurenceb_> nice
[18:05] <Randomskk> that's really good going actually, four launches and four recoveries in like a week
[18:05] <Randomskk> sweet
[18:05] <priyesh> i hope you didn't let andrew catch the payload - he's no good at catching payloads (apex ii dawn launch)
[18:05] <TheoMC> Success :D
[18:06] <Randomskk> jonsowman: wanna try 2m simplex?
[18:06] <Randomskk> before I take the colinear down?
[18:06] <Udin_SHARP> I think Mike_SHARP and Craig owe me a pint :)
[18:06] <jonsowman> Randomskk: yep
[18:06] <jonsowman> freq?
[18:06] <Randomskk> 145.350?
[18:06] <Randomskk> FM?
[18:06] <jonsowman> yep
[18:07] <Randomskk> can't hear me?
[18:07] <Randomskk> :|
[18:07] <jonsowman> tyr now
[18:07] <Matt_soton> you got past the squelch but thats it Randomskk
[18:07] <jonsowman> nope
[18:07] <jonsowman> nowt
[18:07] <Randomskk> baww
[18:07] <Matt_soton> repeater?
[18:07] <Randomskk> was hoping your slim jim plus colinear would be enough
[18:08] <Randomskk> you're not that far away
[18:08] <Randomskk> Matt_soton: you heard me?
[18:08] <Matt_soton> i heard noise
[18:08] <Randomskk> hmm I can hear some kinda noise on fm but not voice
[18:08] <Randomskk> hmm
[18:08] <Randomskk> could try USB
[18:08] <jonsowman> blame the hills
[18:08] <Graeme_SHARP> video of landing
[18:08] <Matt_soton> if i were to get the slim jim up i reckon it might wwork
[18:08] <Randomskk> jonsowman: try usb
[18:08] <jonsowman> ok
[18:08] <Graeme_SHARP> video of landing:)
[18:08] <Randomskk> ready?
[18:08] <jonsowman> listening
[18:09] <Randomskk> :(
[18:09] <jonsowman> nada
[18:09] <Graeme_SHARP> i was 20m from catching it :)
[18:09] <benoxley> Graeme_SHARP: amazing :D
[18:09] <Matt_soton> more noise
[18:09] <Randomskk> Graeme_SHARP: aww close :P
[18:09] <Randomskk> Matt_soton: can you tx?
[18:09] <benoxley> Graeme_SHARP: upload later?
[18:09] <Randomskk> I guess we're all slightly too far away
[18:09] <Matt_soton> FM only
[18:09] <priyesh> Graeme_SHARP: big net for next time
[18:09] <Randomskk> Matt_soton: okay I'm listening fm
[18:09] <Matt_soton> and 5W...
[18:09] <Randomskk> ....ah
[18:10] <Randomskk> you're welcome to try :P
[18:10] <Randomskk> I can hear some weird noise
[18:10] <Matt_soton> well i tried
[18:10] <Randomskk> oh well
[18:10] <Randomskk> screw simplex
[18:10] <Matt_soton> could do morse :P
[18:10] <jonsowman> gb3ns?
[18:10] <Tommo> where do you view the live video?
[18:10] <Randomskk> I don't have a key
[18:10] <Randomskk> for my icom
[18:10] <Randomskk> oh but I think one of the buttons on the handset can key it
[18:10] <Matt_soton> goto ssb and ill key by pressing ppt
[18:11] <jonsowman> frequency?
[18:11] <Randomskk> lol ok
[18:11] <Randomskk> I'll tune to 145 349 USB
[18:11] <Matt_soton> 145.350 - 2k or so
[18:11] <jonsowman> also listening
[18:11] <Randomskk> I can hear a tune very faintly
[18:11] <Randomskk> yes
[18:11] <Randomskk> key it in a pattern?
[18:11] <Randomskk> I'm just getting regular on off atm
[18:11] <Graham_G3VZV_> 145.348 S1
[18:11] <Matt_soton> sorta on/off
[18:11] <Matt_soton> i dont know morse
[18:12] <Randomskk> >_>
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[18:12] <Randomskk> look up your callsign in morse real quick :P
[18:12] <Matt_soton> give me a mo and ill send my callsign
[18:12] <Randomskk> I can hear that but don't think I could decode it
[18:12] <Matt_soton> also worst worse ever
[18:13] <Randomskk> hang on let me try the CW mode
[18:13] <Randomskk> I can tune ot 145.350 exact and put a 250Hz filter on
[18:13] <Matt_soton> ok
[18:13] <Randomskk> then turn on max NR
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[18:13] <Randomskk> go for it
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[18:13] <Randomskk> yea I can just hear that
[18:13] <Randomskk> sounds like distant whale song
[18:14] <Randomskk> can make out morse patterns just
[18:14] <Matt_soton> heh
[18:14] <Randomskk> hmm
[18:14] <Randomskk> wanna try see if you can rx it?
[18:14] <Matt_soton> ok
[18:14] <Randomskk> go to 145.349 usb I guess
[18:14] <Randomskk> say when
[18:14] <Matt_soton> slight issue there
[18:15] <Randomskk> oh yea
[18:15] <Randomskk> you are fm only
[18:15] <Randomskk> you'd just get silencing :|
[18:15] <Matt_soton> indeed
[18:15] <Matt_soton> try anywya
[18:15] <Randomskk> k
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[18:15] <Randomskk> keying
[18:15] <Matt_soton> nothing
[18:15] <Randomskk> not surprised really
[18:15] <Randomskk> oh well
[18:15] <Randomskk> repeaters remain the best option for chatting I guess
[18:15] <Randomskk> or phones
[18:16] <Matt_soton> or internet
[18:16] <Randomskk> yea...
[18:16] <Matt_soton> Lunar_Lander: you had a question? now all that crazy is over
[18:16] <Randomskk> haha oh boy
[18:16] <Randomskk> I can tune to broadcast analogue FM
[18:17] <Randomskk> the colinear seems to do a decent job of picking them up
[18:17] <Randomskk> S9+60dB, the s-meter is maxed out on classic fm
[18:17] <Randomskk> shame about the 3kHz audio BPF
[18:17] <Matt_soton> slight overkill perhaps
[18:18] <Randomskk> don't really need the pre amp on either
[18:19] <Randomskk> don't really need an antenna to pick this up....
[18:19] <Randomskk> okay time to take down the colinear
[18:19] Nick change: LazyL_M0LEP -> LazyLeopard
[18:19] <Randomskk> four flights :D
[18:19] <jonsowman> nearly as good as us on weds
[18:19] <jonsowman> :P
[18:19] <Matt_soton> these launches had boring radios on them
[18:20] <jonsowman> lol
[18:20] <jonsowman> the rfm22b is quite neat
[18:20] <jonsowman> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&&item=120881934953&ssPageName=ADME:B:WNA:GB:1120#ht_500wt_1219
[18:20] <jonsowman> watching :)
[18:20] <Matt_soton> max7032 might be a good transciever
[18:20] <Matt_soton> that isnt a pita
[18:21] <Matt_soton> probably not the perfomance of the adf part
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[18:21] <Matt_soton> jonsowman: how much do they normally go for?
[18:21] <Matt_soton> also a mistake posting here
[18:22] <Lunar_Lander> Matt_soton, I already asked at #sparkfun, but the question was: is Mosfet and Mosfet driver the same?
[18:22] <jonsowman> lol
[18:22] <Matt_soton> o well at least its answered
[18:22] <jonsowman> well i'm just keeping an eye on things
[18:22] <jonsowman> idk if i can justify that right now
[18:22] <jonsowman> £200 car service on monday
[18:23] <Matt_soton> exactly, a radios nothing compared to car costs
[18:23] <Deaney_Mobile> http://t.co/NMgeuUs9 wahooo!
[18:23] <Lunar_Lander> thanks anyway Matt_soton
[18:23] <jonsowman> this is a bargain
[18:23] <jonsowman> http://www.radioworld.co.uk/catalog/second_hand_yaesu_ft-790-p-1741.html?osCsid=923dea8a92aa7d57f33fda617b479548
[18:23] <Udin_SHARP_> panels didnt deploy
[18:24] <Udin_SHARP_> they are just checking whether we have pics
[18:24] <Randomskk> jonsowman: yea but then you'd have a 790 :P
[18:24] <Matt_soton> so launch 5?
[18:24] <Udin_SHARP_> possibly
[18:24] <Udin_SHARP_> helium permitting
[18:24] <jonsowman> Randomskk: dont think i want an icom really
[18:24] <Deaney_Mobile> Thanks too everyone's support and receivers today!
[18:24] <jonsowman> they're not portable enough
[18:24] <jonsowman> congrats Deaney_Mobile
[18:24] <jonsowman> :)
[18:25] <Randomskk> jonsowman: I'd definitely 817>790
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[18:25] <Randomskk> but the icom is soo good
[18:25] Nick change: Udin_SHARP_ -> Udin_SHARP
[18:25] <jonsowman> Randomskk: well depends how you class "good"
[18:25] <Randomskk> well yes
[18:25] <jonsowman> using one in a car is a faff compared to the 817
[18:25] <Randomskk> I think I'll make a battery pack with the proper power lead
[18:25] <Randomskk> then it really wouldn't be
[18:25] <jonsowman> huge filter brick on the power lead
[18:25] <Randomskk> it's only a faff if you want a psu that can handle tx
[18:25] <jonsowman> plus a seperate power supply box
[18:25] <Randomskk> the power brick is optional
[18:25] <Randomskk> you can buy a cable without it
[18:25] <Randomskk> or the US model also lacks it
[18:25] <Randomskk> only EU model ic7000s have it on the lead
[18:26] <Randomskk> it's just a massive LC aiui
[18:26] <jonsowman> it's not really what i want
[18:26] <Randomskk> so you could readily just make a short cable to a deans plug and run it off model batteries
[18:26] <jonsowman> i want a small thing with a battery for chases
[18:26] <jonsowman> then later when i have a house or something have a proper rig
[18:26] <jonsowman> the icom is a bit in-between in that sense
[18:26] <Randomskk> meh obviously up to you but it's such a superior radio :P
[18:26] <Randomskk> hmm
[18:26] <Randomskk> I dunno about that
[18:27] <Randomskk> a "proper rig" is totally non portable and tbh
[18:27] <Randomskk> what would you use it for at a house?
[18:27] <Randomskk> chatting on repeaters? :P
[18:27] <Matt_soton> jsut get a digital tv dongle instead
[18:27] <jonsowman> idk, but why would i want an icom in that case?
[18:27] <Randomskk> they're portable enough to take in a car, but are amazing receivers for chase or in-house listening plus if you do wanna tx they pack a good bit of power?
[18:27] <jonsowman> for HAB tracking/chasing, an 817 seems to be just as good in important respects, better in some, and half the price
[18:27] <Randomskk> also they're like a million times nicer to use than the yaesus
[18:28] <Randomskk> 817 is lower sensitivity and no adjustable notch filters, less adjustable passband filter, no pre amp, bla bla bla
[18:28] <jonsowman> i disagree that they're nicer to use. they both have horrible menus etc
[18:28] <Randomskk> ic7000 is way easier to use than the ft817 >_>
[18:28] <jonsowman> nah
[18:28] <Randomskk> wut
[18:28] <jonsowman> only because you know how to use it
[18:29] <Randomskk> hmmm
[18:29] <Randomskk> not sure I agree
[18:29] <Randomskk> having a screen that can show more than like one line of numbers and a few icons amkes a massive difference
[18:29] <Randomskk> having more than four buttons and two dials makes a massive difference
[18:29] <jonsowman> but they do /so/ many things that they're totally not helpful
[18:30] <Randomskk> hmm
[18:30] <Randomskk> meh
[18:30] <Randomskk> all personal preference I guess
[18:30] <Randomskk> I like them better. also I own one and they'd win in top trumps :P
[18:30] <jonsowman> well that goes back to what is "good"
[18:31] <jonsowman> try walking around a field foxhunting a payload with a yagi with an ic7000
[18:31] <Randomskk> I'd rather be chasing in a car with an ic7000
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[18:31] <Randomskk> but yea, for walking around I would not
[18:31] <Randomskk> otoh for walking around I have a handheld gps
[18:31] <Randomskk> so...
[18:31] <jonsowman> yeah but assuming you want a radio
[18:31] <Matt_soton> i like to see you hunting round a feild with the cusf ft817
[18:31] <Randomskk> I have done that
[18:31] <jonsowman> Matt_soton: it's fine if we actually put batteries in it
[18:31] <Randomskk> 10m of rg213 coax reeled over an arm
[18:32] <Randomskk> going to my yagi
[18:32] <Randomskk> >_>
[18:32] <jonsowman> we tend to not bother
[18:32] <Randomskk> the fact that we tend to not bother seems to mean we don't really need to though I think
[18:32] <Matt_soton> oh there wernt actually batteries in it, rather then the rechargables being crap?
[18:32] <jonsowman> Matt_soton: there are lithiums in it atm
[18:32] <jonsowman> and they're dead
[18:32] <Matt_soton> tbh make a replacemtn battery from a couple of lipos
[18:33] <jonsowman> i dont think the internal charging circuits would work with lipos
[18:33] <jonsowman> they're meant for the nimh pack it comes with
[18:33] <Matt_soton> yea you would have to be clever about it and add one
[18:33] <jonsowman> yeah
[18:33] <jonsowman> that's doable
[18:33] <Matt_soton> maybe you should do it :P
[18:33] <jonsowman> lol
[18:34] <jonsowman> along with maaaany other things
[18:34] <Matt_soton> i probably would if i had a ft817
[18:34] <jonsowman> i might buy one in the summer
[18:34] <jonsowman> we'll see
[18:34] <Matt_soton> get your dad to pay for the car to be fixed and buy a radio :P
[18:35] <jonsowman> cusf mileage pays (most of) car service on monday
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[18:36] <jacof> Wow. Great channel. I hadn't seen it.
[18:36] <Matt_soton> oh ok
[18:36] <jacof> Do you know the humanbirdwingsproject?
[18:37] <Randomskk> jonsowman: talking of, how come nova21/22 aren't on the google doc but are on expenses?
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[18:37] <jonsowman> oh yea
[18:37] <jonsowman> will do that in a min
[18:37] <Randomskk> most expensive part of the entire day :P
[18:38] <jonsowman> that's cars for you
[18:38] <Udin_SHARP> Deaney_Mobile do you know if we have pictures yet?
[18:38] <Randomskk> mm indeed
[18:38] <Deaney_Mobile> We have on board video of the burst!
[18:38] <Deaney_Mobile> It's amazing
[18:39] <Mike_SHARP> Deaney_Mobile: Fantastic! Anything else? Still camera?
[18:39] <Deaney_Mobile> The stills camera was still running on the ground, so should be picks too
[18:40] <Mike_SHARP> Fantastic, can't wait to see it all when you guys get back!
[18:40] <jonsowman> done Randomskk
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[18:41] <Deaney_Mobile> Seriously it's so amazing
[18:41] <Randomskk> ta
[18:42] <fsphil-laptop> nice one sharp!
[18:42] <fsphil-laptop> easy recovery?
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[18:43] <Udin_SHARP> btw what is the record the maximum number of flights people have done with the same payload?
[18:43] <Randomskk> not recorded afaik
[18:44] <Randomskk> ICARUS has done many
[18:44] <fsphil-laptop> some payloads might be a mix of old and new stuff too
[18:44] <Matt_soton> well at least youre getting your monies worth
[18:44] <Randomskk> I think you might be winning the launch density though
[18:44] <fsphil-laptop> definitely
[18:44] <Udin_SHARP> yep four flights within one week
[18:44] <Randomskk> that's four in how many days?
[18:45] <Randomskk> not a rhetorical question, how many days does that work out as?
[18:45] <Randomskk> first on the 25th?
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[18:45] <Udin_SHARP> yep
[18:45] <Randomskk> 4 launches, six days
[18:45] <Udin_SHARP> 4 in 7 days
[18:45] <Randomskk> pretty good :P
[18:45] <Randomskk> oh yea, 7
[18:46] <Randomskk> >_>
[18:46] <Randomskk> still!
[18:46] <Randomskk> mm bbl dinner
[18:46] <fsphil-laptop> looks like I had a signal down to about 20km
[18:48] <Udin_SHARP> off for dinner as well
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[18:48] <Mike_SHARP> Mission control signing off, thanks for all your help tracking and tolerating our dodgy schedules guys!
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[18:50] <Lunar_Lander> back on
[18:50] <Lunar_Lander> did anything happen?
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[18:52] <fsphil-laptop> anything always happens
[18:52] <andrew_apex> We have video of landing
[18:52] <andrew_apex> And amazing onboard upwards video of burst
[18:52] <fsphil-laptop> gopro?
[18:53] <fsphil-laptop> did the panels deploy?
[18:53] <andrew_apex> Canon hacked
[18:53] <craag> uploaded anywhere yet?
[18:53] <andrew_apex> The panels didn't work
[18:53] <fsphil-laptop> aww
[18:53] <andrew_apex> Craag: when back in soton
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[18:54] <craag> Ah cool!
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[18:55] <andrew_apex> And the cutdown didn't cut away the burst balloon
[18:55] <andrew_apex> But everything else worked :D
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[18:57] Nick change: Deaney_Mobile_ -> Deaney_Mobile
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[19:01] <Graeme_SHARP> On the way back to soton, looked at one of the SD cards at a launch site - pretty decent upwards looking video for the entire flight - include balloon burst
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[19:02] <cuddykid> http://imgur.com/xG1id
[19:02] Nick change: Elmar_PD3EM_ -> Elmar_PD3EM
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[19:36] <RocketBoy> An animation of landing spot prediction for the sharp landing http://youtu.be/l4ssN3wxSHU
[19:37] <Randomskk> hah, that's cool
[19:37] <Lunar_Lander> hello RocketBoy
[19:38] <Lunar_Lander> I just read about the final report on the Fobos-Grunt failure
[19:38] <Lunar_Lander> either that the electronics were not radiation-hardened or that the software was badly written
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[19:52] <griffonbot> @project_sharp: A sneak peak of our balloon burst video from today's flight! #UKHAS http://t.co/NbSnjlzj [http://twitter.com/project_sharp/status/186179091773390848]
[19:52] <Randomskk> :O
[19:52] <jonsowman> hehe
[19:52] <Graeme_SHARP> ;p
[19:53] <Randomskk> très cool!!
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[19:57] <griffonbot> @geenweer: wow! @project_sharp: A sneak peak of our balloon burst video from today's flight! #UKHAS http://t.co/kaT6FGDL [http://twitter.com/geenweer/status/186180351918485504]
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[19:57] <griffonbot> @PD3EM: wow! @project_sharp: A sneak peak of our balloon burst video from today's flight! #UKHAS http://t.co/aJqoStwK [http://twitter.com/PD3EM/status/186180553945522176]
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[20:15] <daveake> evening al
[20:15] <daveake> l
[20:17] <Laurenceb_> http://hardware.slashdot.org/story/12/03/31/1914217/software-defined-radio-for-11
[20:17] <Laurenceb_> haha
[20:17] <Laurenceb_> slashdotted
[20:18] <jonsowman> Laurenceb_: have you got one workig?
[20:18] <Randomskk> s/ working//?
[20:18] <Laurenceb_> i havent got one :(
[20:18] <Randomskk> :P
[20:18] <jonsowman> ah ok
[20:18] <Laurenceb_> disappared in post
[20:18] <jonsowman> :(
[20:19] <Laurenceb_> i might order another
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[20:20] <r2x0t> it works, but problem is it's easily overloaded by nearby strong signals
[20:20] <Laurenceb_> they think it was delayed in jersey customs
[20:20] <Laurenceb_> r2x0t: have you received any habs yet?
[20:21] <r2x0t> on 434, any signal on 433.92 moves the AGC a lot
[20:21] <r2x0t> yes
[20:21] <Laurenceb_> cool
[20:21] <Laurenceb_> what was the setup?
[20:21] <Laurenceb_> im temped to write something from scratch in c using libusb
[20:21] <r2x0t> collinear + preamp + AR5000 + QS1R SDR
[20:22] <r2x0t> can't use the dvb-t dongle for this
[20:22] <Laurenceb_> oh
[20:22] <r2x0t> it gets overloaded from 433.92 signals
[20:22] <Laurenceb_> odd
[20:22] <r2x0t> but on other parts of band it's ok
[20:22] <Laurenceb_> oh thats an undersampling receiver
[20:22] <Laurenceb_> interesting
[20:23] <r2x0t> FIR filter as defined in dongle init is 3MHz wide
[20:23] <r2x0t> so it will pick up everything in that range
[20:23] <r2x0t> even if you lower the actual sampling rate
[20:23] <r2x0t> I looked at coefs, but it's not any straight forward format
[20:24] <r2x0t> like 8 or 16bit values
[20:24] <r2x0t> still looking for rtl datasheet, register descriptions would be nice to have
[20:24] <Laurenceb_> i dont think there is one
[20:24] <Laurenceb_> just the linux driver code
[20:24] <Laurenceb_> id grab the data at 3mhz width
[20:24] <Laurenceb_> then do the band select in the driver code
[20:25] <r2x0t> yes, that's doable
[20:25] <r2x0t> I started writing my own app for that
[20:25] <Laurenceb_> cool
[20:25] <r2x0t> and would like to have some control over tuner AGC
[20:25] <Laurenceb_> will you publish the code?
[20:26] <r2x0t> no
[20:26] <Laurenceb_> id use libsamplerate for the output
[20:26] <Laurenceb_> :(
[20:26] <r2x0t> I will probably use CIC decimators and FIRs for final step
[20:26] <Laurenceb_> interesting
[20:27] <r2x0t> same as processing inside SDR
[20:32] <r2x0t> also found the tuner E4000 works up to 1900MHz GSM band
[20:32] <r2x0t> not just 1700MHz as specified
[20:32] <Laurenceb_> ok
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[20:40] <Morseman> Can those DAB things be used with Wondows or is it just Linux?
[20:40] <Morseman> Or even Windows
[20:42] <Morseman> I may be getting hold of a PC that someone has managed to bung up again (after I unbunged it for them) and they have decided to mend with a new one !
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[20:42] <Morseman> So I may have a PC that I can wipe and reset up as a stand alone PC just for Amateur Radio stuff
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[20:43] <Morseman> The question is, do I try to climb the Linux learning curve, and would it be worth the effort, or reinstall XP and sub it off my main PC
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[20:45] <fsphil-laptop> there are more amateur radio apps on windows
[20:46] <fsphil-laptop> sadly
[20:49] <Morseman> fsphil-laptop that's what puts me off Phil
[20:49] <griffonbot> @ASobester: RT @project_sharp: A sneak peak of our balloon burst video from today's flight! #UKHAS http://t.co/NbSnjlzj [http://twitter.com/ASobester/status/186193518803423232]
[20:50] <Morseman> I could use Linrad, but looking at it on Windows with MAP65 I found it difficult to use
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[20:53] <navrac__> hi daveake you're back then
[20:54] <navrac__> or not...
[20:56] <daveake> Yes, I'm back
[20:56] <daveake> And my back is back :D
[20:57] <daveake> Nice chase. The in-car software worked well and we got quite close as it came in to land.
[20:57] <daveake> Even saw it fly past.
[20:59] <daveake> It landed (well, treeed) about 300m to our right
[20:59] <fsphil-laptop> was interesting to watch
[20:59] <daveake> good
[20:59] <fsphil-laptop> tree offer much resistance?
[20:59] <daveake> Shame about Buzz bursting early then stopping
[20:59] <daveake> Well..... 2 of us pulling as hard as we could and the tree still won
[21:00] <daveake> Got Ava down with scissors gaffer-taped to the fibre-glass pole, scissors operated by a length of string :)
[21:01] <fsphil-laptop> oh that beats my hook knife!
[21:01] <daveake> :)
[21:01] <daveake> We got cloud down with a hook and a lot of pulling
[21:01] <LazyLeopard> How much does the tree still posess?
[21:01] <daveake> Chute
[21:02] <daveake> and some nylon
[21:02] <LazyLeopard> Ah well...
[21:02] <fsphil-laptop> there's still a chute and remains of a balloon in a tree not far from here
[21:03] <LazyLeopard> Which one was that?
[21:03] <daveake> The train was obviously moving sideways fairly quickly because the chute made it to one tree but the payloads were stuck in a different tree
[21:04] <daveake> And just the other side of the last tree ....
[21:04] <daveake> .... a power line :p
[21:04] <daveake> Got some great video of Buzz being thrown around during descent
[21:05] <fsphil-laptop> LazyLeopard, hadie:3
[21:05] <fsphil-laptop> was in that tree for a month
[21:05] <daveake> Obviously the cord tied around the payload a bit because the camera ended up pointing to the ground, and the video up at the chute
[21:06] <daveake> The balsa wood snapped during descent
[21:06] <Randomskk> hm
[21:06] <Randomskk> snapped off? what did the photos look like?
[21:06] <daveake> Just about to upload some
[21:07] <Randomskk> worse than http://farm7.staticflickr.com/6224/7029459035_b5110c34d5_c.jpg ?
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[21:09] <daveake> lol
[21:09] <daveake> Broke on the way down; got plenty of good shots
[21:10] <Randomskk> that photo is the worst thing :P
[21:10] <fsphil-laptop> sticks in space!
[21:10] <Randomskk> yea
[21:10] <fsphil-laptop> just say it was intentional
[21:10] <Randomskk> it's actually meta commentary on wasting helium
[21:10] <daveake> Well we didn't do that :)
[21:10] <Randomskk> no indeed
[21:10] <Randomskk> we did
[21:11] <LazyLeopard> fsphil: Ah ;)
[21:11] <Randomskk> the balloon carrying up those empty sticks was flying CP grade helium
[21:11] <number10_M0MDB> Randomskk: was that supposed to have been trex on the end of stick?
[21:11] Nick change: number10_M0MDB -> number10
[21:11] <daveake> http://i.imgur.com/bORue.jpg
[21:11] <Randomskk> 99.999%
[21:11] <Randomskk> number10: no, t rex was on the other side, see http://vimeo.com/39417028
[21:12] <Randomskk> daveake: hehe nice
[21:12] <daveake> They don't know yet :)
[21:12] <LazyLeopard> Ah. Who fell off?
[21:13] <Randomskk> http://farm8.staticflickr.com/7036/7029460389_892188c52c_c.jpg
[21:13] <Matt_soton> radiometrix are losing their share of the hab market mind you
[21:13] <Randomskk> Matt_soton: yea but I think the number of their radios flying on habs is going up
[21:14] <Randomskk> even if their share is going down
[21:14] <Randomskk> they're still the radio I'd recommend people use for stuff
[21:14] <Matt_soton> yea good point
[21:14] <jonsowman> they're the only thing so far that Just Works
[21:14] <Elmar_PD3EM> daveake: Nice! That's a good one for the Radiometrix website ;-)
[21:14] <jonsowman> easiest thing to use ever
[21:14] <Matt_soton> adf7012 isnt going to take off soon, and even the 22b thing is still more of a pain
[21:14] <Randomskk> I doubt the adf7012 will ever become popular :P
[21:14] <Randomskk> I will be surprised if anyone else flies it >_>
[21:14] <jonsowman> lol
[21:15] <Randomskk> the 22b i could see being more popular
[21:15] <Matt_soton> the max7057 looks better tbh
[21:15] <Randomskk> esp as arduino libraries exist
[21:15] <Randomskk> Matt_soton: I think now I have the 7012 working (fcvo...) I'm fairly happy with it
[21:15] <Randomskk> though the -21 is still very tempting
[21:15] <number10> what did sharp use for tx?
[21:15] <Matt_soton> i think the -23 is more integrated but has more processing stuff
[21:15] <Matt_soton> NiM2 number10
[21:16] <jonsowman> you going to make a breakout for the -21 Randomskk?
[21:16] <Jim3> hey guys, is there any future for long range 868mhz modules in HAB?
[21:16] <r2x0t> 868mhz band is interesting
[21:16] <r2x0t> 500mW limit
[21:16] <jonsowman> Jim3: most amateur receivers can't do 868
[21:16] <Matt_soton> the biggest issue is people not having recievers
[21:16] <r2x0t> yeah
[21:16] <Randomskk> jonsowman: yea maybe
[21:16] <r2x0t> maybe for secondary payload
[21:17] <Matt_soton> i like HF bands as they are easy to make custom hardware for, people have recievers but not antennas :\
[21:17] <jonsowman> hence you don't have use of the distributed listener, which is arguably one of the best things in UK HABing
[21:17] <Elmar_PD3EM> 434 is more common in RX and 10mW seems enough most of the times
[21:17] <Randomskk> 10mW is fine for telem
[21:17] <Jim3> I have been thinking about an 868 mesh network solution for HABbing, allowing many people to follow one payload
[21:17] <Randomskk> if we had more power we could go faster
[21:17] <Randomskk> Jim3: meshing what?
[21:17] <Randomskk> you won't mesh listeners over land. you could mesh balloons if you launched many, but.. issues
[21:17] <r2x0t> but tx on 868 have to have 1:10 duty tx time
[21:17] <r2x0t> still good for higher speeds
[21:18] <Randomskk> 868 has higher fspl too
[21:18] <Randomskk> mostly the lack of good receivers
[21:18] <Randomskk> the ham radio receivers for 434 are really good compared to using integrated modules like the rfm22b
[21:18] <fsphil-laptop> it's nice to hear a signal too
[21:19] <Randomskk> true but once you move to anything vaguely high speed you soon lose any nice signal anyway
[21:19] <fsphil-laptop> true
[21:19] <Randomskk> 300 baud sounds pretty crap
[21:19] <jonsowman> fcd can do 868?
[21:19] <r2x0t> yes
[21:19] <fsphil-laptop> it can
[21:19] <r2x0t> also the dvb dongle
[21:19] <fsphil-laptop> I used the fcd to test mine
[21:19] <Matt_soton> r2x0t: you dont have to use 10% duty if you listen b4 talk
[21:19] <jonsowman> are there any ham receivers that can do 868 natively?
[21:19] <fsphil-laptop> I've the radiometrix 869mhz module
[21:19] <Jim3> I was talking to Miles from CISECO (who make the XRF 868 modules) he's working on a version that has a theoretical line-of-site range of 17km that could be intersting for HAB
[21:19] <Matt_soton> jonsowman: icom r20 :P
[21:19] <Randomskk> jonsowman: yea, some radio amateur ones
[21:19] <fsphil-laptop> my vx-7r can do 869mhz but only in FM
[21:19] <Randomskk> just none of the popular ones
[21:20] <jonsowman> hmm ok
[21:20] <Randomskk> by which I mean not the 817 or the 790 or the 7000
[21:20] <fsphil-laptop> I used it for testing the aprs stuff
[21:20] <jonsowman> Matt_soton: something with sensitivity greater than a lemon
[21:20] <jonsowman> also can it do SSB?
[21:20] <Matt_soton> its fine if you put out 500mW
[21:20] <Randomskk> I guess heterogeneous radio solutions will become more popular soon
[21:20] <Matt_soton> yea it can so all modes 500kHz to 3GHz
[21:20] <Randomskk> 10mW 434 with an amateur radio receiver for those vital last packets that tell you where to recover
[21:20] <jonsowman> :)
[21:20] <Matt_soton> its also handheld so you wont get the performance of a ic7000
[21:20] <Randomskk> but perhaps a microwave or 868 link at high speed to a non-amateur radio for data
[21:21] <r2x0t> you can always have two tx
[21:21] <jonsowman> true
[21:21] <Randomskk> I wonder what the microwave footprint would be if you put a dish on
[21:21] <fsphil-laptop> dual ntx2 and rfm22b payload
[21:21] <r2x0t> basic 434 for tlm, and say 868 link for slow video
[21:21] <Randomskk> yea, what I just said.
[21:21] <Randomskk> hmm I wonder what ISM microwave bands you could use
[21:21] <Randomskk> 2.4GHz would be awful
[21:21] <r2x0t> heh full of crap
[21:22] <Randomskk> fspl kills you dead but I wonder what you'd get away with with a dish
[21:22] <Randomskk> TV satellites manage it
[21:22] <Randomskk> >_>
[21:22] <jonsowman> there's an ISM band around 1.3G isn't there?
[21:22] <Matt_soton> 5GHz, 24 GHz, 61GHz, 138GHz Randomskk
[21:22] Action: fsphil-laptop has a 1m 2.4ghz dish
[21:22] <Randomskk> Matt_soton: are those ISM?
[21:22] <r2x0t> yes
[21:22] <Matt_soton> 122 and 244GHz too
[21:22] <Randomskk> hm
[21:22] <Randomskk> cool
[21:22] <Randomskk> what kinda power limits?
[21:22] <Matt_soton> crap
[21:22] <r2x0t> 5GHz is nice
[21:22] <Randomskk> yea not surprised
[21:22] <Matt_soton> 100mW max
[21:22] <Matt_soton> on one
[21:22] <Randomskk> clearly we should build a 244GHz link
[21:22] <Randomskk> what wavelength even is that
[21:23] <jonsowman> fspl would be pretty shocking
[21:23] <r2x0t> you can just attach laser pointer to payload...
[21:23] <fsphil-laptop> lol
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[21:23] Action: fsphil-laptop has a 2 watt IR LED for a future flight
[21:23] <Randomskk> 244GHz is 1.23mm
[21:23] <Randomskk> lol
[21:23] <Matt_soton> tbh we havnt maxed out a 10mW link yet
[21:23] <Randomskk> yagis would be /amazing/
[21:23] <Randomskk> you could make like a 200el 4x4 stack
[21:23] <Randomskk> and it'd fit in like, the palm of your hand
[21:24] <r2x0t> ...or just small dish with 100x the gain
[21:24] <fsphil-laptop> you could produce it on a pcb
[21:24] <Randomskk> heck you could do it on a double layered PCB probably
[21:24] <Randomskk> the whole stack
[21:24] <Matt_soton> can those tv dongles do 868?
[21:24] <r2x0t> yes
[21:24] <Randomskk> r2x0t: boooring :P
[21:24] <r2x0t> they tune up to 1900MHz or so
[21:24] <Randomskk> actually the dish would be amazingly tiny
[21:24] <Randomskk> hehe
[21:24] <jonsowman> Randomskk: you need >1kW transmit power to get the same link budget on 244GHz as 10mW on 434
[21:25] <jonsowman> roughly speaking
[21:25] <fsphil-laptop> why is that the case
[21:25] <r2x0t> water vapour attenuation?
[21:25] <Randomskk> jonsowman: and what?
[21:25] <jonsowman> fsphil-laptop: free space path loss
[21:25] <jonsowman> Randomskk: lol
[21:25] <jonsowman> 171dB attenuation due to fspl
[21:25] <Randomskk> yea but
[21:26] <fsphil-laptop> I've heard of it, and I know that it results in. but I don't actually understand it
[21:26] <Randomskk> 500el 8x8 yagi stack
[21:26] <r2x0t> 1kW... that would shoot birds out of the sky
[21:26] <Randomskk> 9999dB gain
[21:26] <Randomskk> so you're still thousands of dB up
[21:26] <jonsowman> Randomskk: hahaha
[21:26] <Randomskk> and it'd still be like, 2cm long
[21:26] <jonsowman> fsphil-laptop: the wiki article is quite useful
[21:26] <Matt_soton> can we go under the applicatoin of '
[21:26] <fsphil-laptop> yea on it now
[21:26] <Matt_soton> Industrial/Commercial Telemetry and Telecommand'?
[21:26] <Randomskk> sure
[21:26] <Randomskk> just need some serious pointing accuracy
[21:27] <Randomskk> that sure was at you Matt_soton
[21:27] <fsphil-laptop> "Note that this is not a frequency-dependent effect."
[21:27] <Randomskk> we could totally get away with that >_>
[21:27] <jonsowman> 2.5kW i reckon
[21:27] <jonsowman> that makes up for FSPL
[21:27] <jonsowman> i don't even want to think about connector losses
[21:27] <jonsowman> and transmission lines
[21:27] <Randomskk> hahaha
[21:27] <Matt_soton> well we could use 169 @ 500mW
[21:27] <Randomskk> can you even have connectors for 244GHz
[21:28] <Randomskk> and I think lines are just hollow waveguides at this point
[21:28] <Randomskk> filters are shaping the waveguides
[21:28] <jonsowman> :D
[21:28] <r2x0t> Matt_soton: 169MHz ?
[21:28] <Matt_soton> yep
[21:28] <fsphil-laptop> the ntx2 has quite a few harmonics, it probably puts out something on 244ghz already
[21:28] <Matt_soton> 1% duty however
[21:28] <r2x0t> meh :(
[21:29] <jonsowman> is there a 137M ISM band?
[21:29] <jonsowman> (might be making that up)
[21:29] <r2x0t> no
[21:29] <Matt_soton> well noaa would get annoyed if there was
[21:29] <r2x0t> entire 137MHz is sat/air band
[21:29] <jonsowman> ah yes
[21:29] <Randomskk> there is a 1.23m jonsowman
[21:29] <jonsowman> 173?
[21:29] <Randomskk> did I say m, I meant mm :P
[21:29] <jonsowman> i'm sure there's something with those numbers
[21:29] <jonsowman> >.>
[21:30] <r2x0t> there may be some ISM around 1.2GHz
[21:30] <Matt_soton> 173 is not listed as airborne use
[21:30] <jonsowman> ah
[21:30] <jonsowman> shame
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[21:30] <Matt_soton> i dont think 1.2GHz is in the UK
[21:30] <Randomskk> jcoxon: if I were to try and build a dl-fldigi for os x... is it totally horrid?
[21:30] <Randomskk> mostly I want hamlib
[21:30] <r2x0t> what are regulations for WX sondes at 401-406MHz ?
[21:31] <Matt_soton> met office asked ofcom nicely
[21:31] <Matt_soton> probably
[21:31] <r2x0t> it's worldwide
[21:31] <Matt_soton> well its not free for us to use anyway
[21:31] <r2x0t> Vaisala RS-92KL uses 200mW WFM
[21:31] <r2x0t> that wouldn't be bad
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[21:34] <Matt_soton> i dont think we can really get around the 10% duty on 869MHz due to the way itll will be heard all over the UK
[21:35] <Matt_soton> unless anyone wanted to read
[21:35] <Matt_soton> 1999/5/EC
[21:35] <Randomskk> I read that once
[21:35] <Randomskk> not getting that time back
[21:35] <jcoxon> Randomskk, ummmmm
[21:35] <jcoxon> not really
[21:35] <Matt_soton> its a purple link for me
[21:35] <r2x0t> can't you just do frequency hopping?
[21:35] <jcoxon> though i could just do it for you...
[21:36] <Randomskk> jcoxon: if you could build it with hamlib that'd be amazing :D
[21:36] <r2x0t> 10 frequencies, hop them
[21:36] <r2x0t> stay on one 1/10 of the time
[21:36] <Randomskk> r2x0t: not sure that's legal but it's not very explicit
[21:36] <Matt_soton> also i would have thought on the ground our signal would be wiped out by a local user
[21:36] <Randomskk> in the same way that -- could our HAB payloads have ten radios all transmitting 10mW?
[21:36] <jonsowman> didn't someone do an rfm payload that frequency hopped on its uplink?
[21:37] <jonsowman> monitored 10 channels and listened on the quietest
[21:37] <jonsowman> or something
[21:37] <Matt_soton> all it says is that you must 'use techniques to access spectrum and mitiate interference'
[21:37] <Matt_soton> meaning frequency hopping would probably be fine
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[21:37] <Matt_soton> or going on the assumption on the ground the signals would be weak
[21:38] <Randomskk> when in the air I don't think we're going to wipe out any ground transmitters, really
[21:38] <Randomskk> a bad hab payload might stop your rf car key when you're close
[21:38] <Randomskk> but not while flying
[21:38] <jonsowman> maybe we should put the 2.5kW payload on the back burner then
[21:38] <Randomskk> probably anyway :P I make no promises in terms of wombat
[21:38] <Randomskk> jonsowman: "burner"
[21:38] <jonsowman> :D
[21:39] <Matt_soton> elonics 4000 based dongles should be good for 869
[21:39] <r2x0t> E4000 ones are cheapest
[21:39] <r2x0t> so good :)
[21:39] <Matt_soton> shame you cant just buy those parts
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[21:40] <jcoxon> Randomskk, do you want python bindings?
[21:40] <andrew_apex> this upwards video from SHARP is amazing - there's more air than I guessed at 29k. The parachute works immediately after burst, and the balloon streams above it
[21:40] <Randomskk> what's that for? I don't know
[21:40] <jcoxon> not sure
[21:41] <Randomskk> I didn't know that was an option. sounds fun?
[21:41] <Randomskk> mostly I just want hamlib working
[21:41] <Randomskk> andrew_apex: you say "works"
[21:41] <jcoxon> i'll leave it be
[21:41] <Randomskk> it was going pretty speedy...
[21:41] <andrew_apex> Randomskk: well, I had assumed gravity would be greater than air resistance and it would flop
[21:42] <andrew_apex> but no :)
[21:42] <Lunar_Lander> andrew_apex, will the video be uploaded to youtube?
[21:42] <jonsowman> andrew_apex: http://www.youtube.com/watch?v=mzEcSO6oDcY
[21:44] <daveake> Looking up at Buzz, Ava and the chute - http://i.imgur.com/n5syX.png
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[21:45] <andrew_apex_> internet issues - did someone say something to andrew_apex just now?
[21:45] <Lunar_Lander> yes
[21:45] <Lunar_Lander> andrew_apex, will the video be uploaded to youtube?
[21:45] <Randomskk> 22:42:57 jonsowman> andrew_apex: http://www.youtube.com/watch?v=mzEcSO6oDcY
[21:46] <jonsowman> andrew_apex: just linked you to this http://www.youtube.com/watch?v=mzEcSO6oDcY, if you've not seen it
[21:46] <jonsowman> oh
[21:46] <Lunar_Lander> daveake, cool!
[21:46] <andrew_apex_> thanks - missed that :)
[21:46] <Lunar_Lander> daveake, how did you find buzz? after comms dropped out
[21:46] <Lunar_Lander> andrew_apex_, will the video be uploaded to youtube?
[21:46] andrew_apex (bcdca964@gateway/web/freenode/ip. left irc: Ping timeout: 245 seconds
[21:46] <daveake> Different Buzz. This is Buzz the soft toy, attached to the cloud payload
[21:47] <Lunar_Lander> oh
[21:47] <daveake> There was also a separate flight with a Buzz payload. Burst early; radio stopped during descent; lost.
[21:47] <jonsowman> daveake: any idea what happened to it?
[21:47] <jonsowman> possible failure points?
[21:48] <Randomskk> it was a successful test of my aforementioned HAB interceptor missile program :P
[21:48] <daveake> Nothing in particular but to stop it either lost power or the rfm22b reset
[21:48] <daveake> :D
[21:48] <Lunar_Lander> daveake, yeah that I meant, the Sputnik replica that flew my patch
[21:48] <andrew_apex_> Lunar_Lander: we've got amazing footage of all four launches, the recovery from the tree (via gopro helmet cam) and the onboard flight footage. Our video-editing-master friend (DeanyBabey) will splice them all together, add some suitably epic music, and the result should be the best HAB video ever :D
[21:49] <jcoxon> Randomskk, building...
[21:49] <navrac__> hi guys, - nice flights daveake, shame about buzz - cant think what happened there. jcoxon - you around tomorrow for a chat?
[21:49] <jcoxon> navrac__, oncall till at least 10pm
[21:50] <daveake> I'm not bothered about losing the payload but it would have been good to find out what went wrong
[21:50] <navrac__> ok, just wanted to chat about the ublox - had some intersing issues
[21:50] <andrew_apex_> daveake: did it just stop txing?
[21:50] <daveake> Yep
[21:51] <Lunar_Lander> cool
[21:51] <navrac__> no logic to it dave, 60g and 1 100 shouldhave been fine
[21:51] <Lunar_Lander> andrew_apex_, will there be a DVD avaliable?
[21:51] <Lunar_Lander> XD
[21:51] <navrac__> 1600 that should have read
[21:51] <daveake> We were driving along, tuned to Ava, and Julie said that Buzz had no data below 24km
[21:51] <andrew_apex_> Lunar_Lander: coming to a cinema near you... in 3D!
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[21:51] <andrew_apex_> carrier?
[21:51] <daveake> So I scanned the frequency area and there was nothing at all
[21:51] <jonsowman> nowt
[21:51] <Lunar_Lander> :P
[21:51] <jonsowman> several people on here heard it disappear
[21:51] <andrew_apex_> so hardware rather than software
[21:52] <Randomskk> daveake: cloud drifted eponymously on the way down
[21:52] <daveake> If the power shorted briefly then the rfm22b would reset but also the CPU should have reset, initialised the rfm22b, and all would be well
[21:52] <jonsowman> ava was pretty stable
[21:52] <daveake> So I suspect a power line came off
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[21:53] <daveake> Maybe my soldering on one of the AAAs
[21:53] <Randomskk> maybe the rfm reset without the avr or something
[21:53] <Randomskk> but yea
[21:53] golddragon24 (~anonymous@wufis-pat7.nts.wustl.edu) joined #highaltitude.
[21:53] <daveake> Could be, and I previously thought of checking the rfm22b each sentence to see if it's reset, and then init again if so
[21:54] <Randomskk> wombat reset the ADF7012 radio every 10 sentences, then ran it through a test and initialisation routine
[21:54] <Randomskk> including sweeping its various bias and adjust parameters to ensure stable frequency lock
[21:54] <daveake> Same electronics as last weekend's Buzz, but obviously descent was more violent this time
[21:54] <Randomskk> not sure it needed it tbh
[21:54] <Randomskk> yea I guess so
[21:54] <Randomskk> the transmit power from cloud seemed much lower than ava
[21:54] <Randomskk> like, S1 vs S8
[21:54] <daveake> I think a quick test of a register that resets to a value but is changed during init would do it
[21:55] <daveake> Yes cloud power was down
[21:55] <daveake> At least I have that here so I can check it
[21:55] <Randomskk> intentionally?
[21:55] <Randomskk> ah ok
[21:55] <daveake> No, should have been same as Ava
[21:55] <Randomskk> not that it seemed to matter much
[21:55] <Randomskk> still decoded fine
[21:55] <daveake> cool
[21:56] <daveake> Suppose it was appropriate that the 2 NTX2s worked fine and the rfm22b payload didn't on the day we put the Radiometric logo up there :D
[21:56] <jonsowman> heh
[21:57] <Randomskk> hehe
[21:57] <Randomskk> the ntx2s are super reliable
[21:57] <Randomskk> then again, not really anything that could go wrong on them
[21:57] <daveake> Indeed
[21:57] <jonsowman> bunch of passives encased in magic
[21:57] <daveake> have power will transmit
[21:58] <daveake> Definitely helps reliability
[21:58] <daveake> The compass heading thing in the car worked really well
[21:58] <daveake> So much so we parked up and watched the chute fly past :)
[21:59] <daveake> Then we got as close as we could to the landing spot (shown as 300m on the display)
[21:59] <Randomskk> perfect
[21:59] <Randomskk> the one built into your dash?
[21:59] <daveake> "built in" is pushing it :D
[21:59] <Randomskk> hehehe
[22:00] <daveake> Dunno if you saw the little graphic LCD but I added one, fitted (pushed into) an air vent
[22:00] <Randomskk> yea
[22:00] <Randomskk> that's what I was thinking of
[22:00] <daveake> That shows the compass and basic data - altitude etc
[22:00] <jonsowman> whack the heater on full and you can reflow it
[22:00] <daveake> lol
[22:00] <daveake> Bottom compass was upside down :p
[22:01] <Randomskk> oops
[22:01] <fsphil-laptop> "What's that melting solder smell dear?"
[22:01] <daveake> Not a problem
[22:01] <r2x0t> haha
[22:01] <daveake> Retrieval from the tree was good fun
[22:02] <fsphil-laptop> was there video of the unique solution?
[22:02] <daveake> No, but lots of photos
[22:02] <fsphil-laptop> excellent
[22:02] <daveake> Involved my fibre-glass pole, big hook, gaffer tape, scissors and string :)
[22:02] <andrew_apex_> daveake: not as fun as SHARPs retrieval this morning :P
[22:02] <SpeedEvil> :)
[22:02] <daveake> No but we did it at the time :D
[22:02] <andrew_apex_> haha nice point
[22:02] <daveake> What happened with SHARP then?
[22:03] <andrew_apex_> we had to pick up our climber from Reading :P
[22:03] <daveake> :)
[22:03] <andrew_apex_> it was at the top of a 60ft+ pine
[22:03] <daveake> We passed a guy with a chainsaw on the way ... he was plan B
[22:03] <Lunar_Lander> XD!
[22:03] <daveake> Yeah I had a 10m pole and that didn't get halfway
[22:04] <daveake> left the chute behind
[22:04] <daveake> And boy was the nylon strong - 2 of us pulling hard and it still held (as did the tree)
[22:04] <andrew_apex_> giant slingshot between two trees, cricket ball attached to fishing line, thick string, climbing rope, climber, pole :D the video is brilliant - again, coming soon :P
[22:04] <fsphil-laptop> reminds me, the top of my 10m pole is still in that tree
[22:04] <Randomskk> the nylon we use for flight cord is so strong
[22:04] <Randomskk> nothing will get it
[22:04] <Randomskk> it doesn't fray itself
[22:04] <Randomskk> months in thunderstorms has no effect
[22:05] <daveake> Just need a weaker section to the chute
[22:05] <fsphil-laptop> why don't we make cars out of nylon
[22:05] <jonsowman> we know this from experience
[22:05] <Randomskk> I've been thinking about a water soluble block in the flight train
[22:05] <Randomskk> and bring a water gun to recovery
[22:06] <Randomskk> but clouds and condensation might make it sad
[22:06] <daveake> ice
[22:06] <Randomskk> hmmm
[22:06] <daveake> Not serious
[22:06] <Randomskk> interesting idea
[22:06] <Randomskk> that might work though...
[22:06] <daveake> Serious then :p
[22:07] <Randomskk> I don't think it'd melt before it got to the very-cold bits
[22:07] <Randomskk> you'd need to insulate it from sun
[22:07] <Randomskk> but you could do that easily enough
[22:07] <NigeyS> possibly, drill a hole through it ... hmmm
[22:07] <Randomskk> just freeze it around a former with holes
[22:07] <Randomskk> then sheath it in something to block the solar heating
[22:07] <r2x0t> put two pieces of rope to water, then freeze
[22:08] <Randomskk> more convenient to freeze holes in it so you can just attach the rope, but sure, that works too
[22:08] <Randomskk> hmm
[22:08] Action: Randomskk might fly some ice cubes next time, see what happens to them
[22:08] <jonsowman> it'd be concerned about it shattering during launch
[22:08] <Randomskk> yea but it could be reasonably thick
[22:08] <Randomskk> and you could treat it gentle
[22:08] <r2x0t> should be ok in styro box
[22:08] <Matt_soton> or pyros?
[22:09] <Randomskk> ice is a neater solution in some ways
[22:09] <Randomskk> then again tbh sharp's pyros seem good
[22:09] <Randomskk> they were just e-matches without any powder, right?
[22:09] <daveake> I've not seen it actually available, but there does exist an electrically releasable glue
[22:09] <Upu> good evening
[22:09] <daveake> Home Upu?
[22:09] <Randomskk> hi upu
[22:09] <jonsowman> evening Upu
[22:09] <Randomskk> good flights :P
[22:10] <jonsowman> congrats on today
[22:10] <Upu> yup
[22:10] <Upu> thanks
[22:10] <daveake> Upu pic of Ava ... http://i.imgur.com/n5syX.png :p
[22:10] <andrew_apex_> daveake: did you see the picture of our giant slingshot? https://twitter.com/#!/jdpictures/status/186021504734081025/photo/1
[22:10] <Upu> daveake debriefed everyone I guess
[22:10] <Upu> great pic :)
[22:11] <Upu> let me have a look at spacenear.us
[22:11] <daveake> andrew_apex lol
[22:11] <Upu> not seen it today really :)
[22:11] <daveake> nor me
[22:11] <Upu> why didn't your buzzer go off ?
[22:12] <Upu> and how accurate is that final location of Ava :)
[22:12] <Lunar_Lander> hello Upu
[22:12] <Lunar_Lander> how was your day?
[22:12] <Upu> evening Lunar
[22:12] <Upu> long :)
[22:13] <Lunar_Lander> :)
[22:13] <daveake> Upu Good question! Not thought about that yet
[22:13] <Lunar_Lander> I connected the GPS to my FTDI USB breakout
[22:13] <Lunar_Lander> after 20 minutes or so, it got lock here in the house
[22:13] <SpeedEvil> :)
[22:14] <Upu> get it outside :)
[22:14] <Upu> just checking the video I took of it landing
[22:14] <Upu> damn you can't see it on the video
[22:15] <Lunar_Lander> yea
[22:15] <Lunar_Lander> but the significance for me was that it got lock after all
[22:15] <Lunar_Lander> that it probably wasn't broken or so
[22:15] <Lunar_Lander> :)
[22:15] <Upu> DAVEAKE-CHASE : AVA,1013,15:10:10,51.187979,-0.324683,124,10,9.25,5759,-4.88,S*FC35
[22:15] <Upu> yay it went into landing mode :)
[22:15] <Upu> whats the link to the stats page ?
[22:16] <Lunar_Lander> Upu, sorry that I have to cut it short
[22:16] <Lunar_Lander> but thanks again for making that GPS!
[22:17] <Upu> not a problem Lunar cut it short all you want
[22:17] <Lunar_Lander> yeah
[22:17] <Upu> Haha how did cloud exceed Ava altitude when cloud was strung 3 meters under Ava ? :)
[22:17] <Lunar_Lander> see you soon
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[22:17] <Upu> ping eroomde
[22:18] <Upu> anyone told Ed his knots saved the day ?
[22:19] <Randomskk> oh?
[22:19] <Upu> yeah we had to pull ava out of the tree
[22:20] <daveake> Upu Presumably got a sentence out closer to the burst
[22:20] <Upu> and we basically had 2 full grown men hanging off the lines trying to pull it down
[22:20] <Upu> you did just pulling that one as an example of the tracker working as intended
[22:20] <andrew_apex_> Upu: what diameter nylon?
[22:20] <Upu> 2mm
[22:20] <Upu> was quite thick
[22:20] <andrew_apex_> 200kg breaking strain :o
[22:21] Action: daveake > 100kg
[22:21] <Upu> yeah I nearly ripped my little finger off
[22:21] <daveake> Upu < 100kg
[22:21] <Upu> lol
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[22:22] <andrew_apex_> do you have a weakened bit so "a force of less than 230 N is required to separate the suspended payload and parachute from the balloon."?
[22:23] <Upu> anyway changing the subject
[22:23] <daveake> After application of scissors on a pole, yes we did :D
[22:23] <andrew_apex_> :P
[22:23] <Upu> wow at the number of listeners
[22:23] <Upu> 28 ?
[22:23] <andrew_apex_> yeah 20+ at one time for SHARP
[22:24] <andrew_apex_> think so
[22:24] <Upu> just for the record Three didn't disconnect once in the car
[22:24] <Randomskk> nice
[22:24] <Randomskk> I ran out to buy a colinear while you were setting up
[22:25] <Randomskk> got it up just in time ;D
[22:25] <Upu> just for us ? Why thanks :)
[22:25] <daveake> :D
[22:25] <daveake> We deliberately took our time for you :p
[22:25] <Randomskk> hehe appreciated :P
[22:25] <Randomskk> trying to solder up a patch lead was so so stressful
[22:25] <Randomskk> stupid coax and pl259
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[22:27] <Upu> dew heater didn't work
[22:27] <Upu> like badly didn't work
[22:27] <andrew_apex_> :(
[22:28] <Upu> http://i.imgur.com/aE0Ee.jpg
[22:28] <Upu> actually take it back
[22:28] <Upu> it melted from the outside in
[22:29] <fsphil-laptop> is that ice?
[22:30] <Upu> yeah it was a very humid launch
[22:30] <Upu> so good pictures shame there was total cloud cover
[22:30] <fsphil-laptop> crikey
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[22:31] <Upu> http://i.imgur.com/zVeqF.jpg just clouds!
[22:32] <fsphil-laptop> pretty much sums up the weather here
[22:32] <andrew_apex_> for once SHARP actually worked! https://p.twimg.com/ApV1xkwCIAArWSl.jpg
[22:33] <andrew_apex_> although less clouds would have been nic
[22:33] <andrew_apex_> *nice
[22:33] <fsphil-laptop> if you'd launched at the same time we could have made some stereo images :)
[22:34] <Upu> Cloud hanging under Ava : http://i.imgur.com/jfb6d.jpg
[22:35] <fsphil-laptop> is that a stream?
[22:35] <Upu> haha 1 sec this is great
[22:35] <Upu> yes
[22:35] <fsphil-laptop> ava really was pretty far up there
[22:35] <daveake> nice :)
[22:35] <Upu> http://i.imgur.com/DNReo.jpg check the man with a pole :)
[22:36] <fsphil-laptop> I recognise that bloke
[22:36] <jonsowman> hehe
[22:36] <fsphil-laptop> pole vaulting wasn't his speciality
[22:36] <daveake> :D
[22:37] <fsphil-laptop> that's a good pic
[22:37] <Upu> the Ava1 video camera failed the picture all corrupted
[22:37] <jonsowman> ava was very decodeable here :)
[22:38] <fsphil-laptop> ava had a lovely signal here too
[22:38] <Upu> glad it was nice and strong and I finally made one that works :)
[22:38] <fsphil-laptop> I didn't get time to try cloud sadly
[22:38] <Upu> that was a 1/4 wave antenna but with only 2 radials btw
[22:38] <Randomskk> ava?
[22:38] <Upu> yes
[22:38] <jonsowman> i was using a 2m slim jim in the attic
[22:38] <jonsowman> got to +20dB SNR and above towards the end of the flight
[22:38] <Randomskk> ava was much stronger than cloud I thought
[22:39] <Upu> I think we over did Cloud with crap sorry daveake :o)
[22:39] <daveake> Yes, was in my car too
[22:39] <Upu> let me show you the problem
[22:39] <Upu> dum dee dum 1 sec
[22:40] <daveake> Upu http://i.imgur.com/bORue.jpg
[22:40] <Upu> that looks photoshopped :)
[22:40] <Randomskk> they always do
[22:40] <jonsowman> totally does
[22:40] <daveake> No!
[22:40] <jonsowman> but yes, they always do
[22:40] <Randomskk> this is actually one of my favourite things about the t-rex photos
[22:40] <Upu> behond
[22:40] <Randomskk> no one would photoshop it that badly
[22:40] <Upu> behold
[22:40] <Upu> Cloud :
[22:40] <Upu> http://i.imgur.com/LeeWy.jpg
[22:40] <daveake> lol
[22:40] <Randomskk> also his fur is moving in every frame
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[22:41] <Randomskk> haha nice
[22:41] <daveake> nice Upu :)
[22:41] <jonsowman> Upu: is it... made of gaffa tape?
[22:41] <Randomskk> wow is that boom long enough?
[22:41] <Upu> just about :)
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[22:42] <fsphil-laptop> needs more duct tape
[22:42] <Upu> amazed the gaffer tape held up to that battering daveake
[22:42] <Upu> the antenna is trashed
[22:42] <daveake> Randomskk We didn't want the object taking up the entire frame :p
[22:42] <fsphil-laptop> lol
[22:42] <Randomskk> >__>
[22:42] <jonsowman> also it wasn't a giant dinosaur
[22:42] <daveake> Upu yeah. Balsa snapped on the way down. The rod though just bounced
[22:43] <Upu> carbon fibre ftw
[22:43] <daveake> Got some great video of Buzz being bounced off and on the screen
[22:43] <Upu> http://i.imgur.com/5m01B.jpg
[22:43] <Upu> how to spend a Saturday :)
[22:44] <fsphil-laptop> pink!
[22:44] <Upu> with complementary eroomde
[22:44] <jonsowman> very pink
[22:44] <fsphil-laptop> doesn't look warm enough for shorts
[22:44] <daveake> And just missing my "builders' bum" :p
[22:44] <Upu> it wasn't
[22:45] <Randomskk> yes but this is eroomde :P
[22:45] <Laurenceb_> http://www.youtube.com/watch?feature=player_embedded&v=w7s-tnzPZ3c
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[22:46] <Upu> shame that camera failed
[22:46] <Upu> picture was looking good
[22:46] <Upu> the sea has destroyed the microphone
[22:47] <Upu> can see Ava getting all wafted about
[22:47] <Upu> actually this angle is very interesing
[22:48] <Upu> damn camera that would have got an amazing burst if it had worked
[22:48] <Laurenceb_> sea?
[22:50] <Upu> http://i.imgur.com/G0xEY.png
[22:50] <Upu> that was the view
[22:50] <Upu> but shortly after that the picture corrupted and the camera stopped recording
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[22:52] <Laurenceb_> nothing landed in the sea?
[22:52] <Ches_> Hello
[22:53] <daveake> Launch train - http://i.imgur.com/PSQcf.jpg
[22:53] <fsphil-laptop> the previous ava launch Laurenceb
[22:53] <fsphil-laptop> ed holding a balloon again
[22:53] <daveake> he loves it
[22:53] <Upu> No sea is so old hat
[22:53] <Upu> did big f?ck off tree this time
[22:53] <Upu> beat that too
[22:53] <fsphil-laptop> trees are the new sea
[22:54] <daveake> I got to launch both; Upu wimped out :p
[22:54] <jonsowman> ed looks too happy
[22:54] <fsphil-laptop> too happy considering there's an explosive balloon directly above him
[22:54] <Laurenceb_> lol
[22:55] <daveake> lol
[22:55] <jonsowman> yes, quite
[22:55] <Upu> we got some groupies too
[22:55] <daveake> :D
[22:56] <daveake> Signed up for the next launch too
[22:56] <daveake> They can be our media management
[22:56] <Upu> daveake can you fill in the data on the wiki when you get a sec no urgency
[22:56] <daveake> yeah np
[22:56] <daveake> Gonna take a while just to get through the photos, video, blog, eyc
[22:57] <Upu> I know
[22:58] <Upu> I have 5 SD cards here
[22:58] <Upu> 2 of yours :)
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[22:59] <Upu> btw dave
[22:59] <Upu> that Kodak camera is amazing quality
[23:01] <Upu> bozz got caught in the rigging
[23:01] <Upu> buzz
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[23:05] <daveake> Upu yeah I like the Zx1
[23:05] <daveake> Cheap and good
[23:06] <Upu> who's M0JSN ?
[23:06] <jonsowman> ME
[23:06] <jonsowman> oops
[23:06] <jonsowman> caps
[23:06] <Upu> you got it down @ 500m
[23:06] <daveake> Yeah Buzz got caught up. Which did at least mean we got video of Ava and the chute, and photos of the A24 and a LOT of trees!
[23:06] <jonsowman> :)
[23:06] <jonsowman> Upu: with my 2m homemade slim jim
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[23:07] <Upu> Well thanks for tracking everyone was a great day, especially the not landing on Gatwick part
[23:07] <jonsowman> yeah that was briefly worrying
[23:08] <Upu> briefly ? I was crapping it for 2 hours
[23:08] <daveake> lol
[23:08] <jonsowman> :)
[23:08] <daveake> Glad I was in a different car :
[23:08] <daveake> :)
[23:08] <Upu> lol
[23:08] <Upu> anyway bed time thanks everyone again thanks nn
[23:08] <daveake> Yeah night night
[23:08] <fsphil-laptop> there was an interesting moment when it looked like upu's car had driven under the tree
[23:09] <jonsowman> see you :) congrats again on today
[23:09] <daveake> Busy day tomorrow going thru this stuff
[23:09] <fsphil-laptop> until we realised it was probably just the phone
[23:09] <Upu> btw look how close the landing prediction was
[23:09] <Upu> really off now
[23:09] <fsphil-laptop> nite!
[23:11] <Ches_> Would any of you think a Hwoyee 1600g balloon would have any issues making +25,000m with +7m3 of helium. Is it overfilling a little?
[23:11] <Randomskk> Ches_: depends on payload mass
[23:11] <Ches_> say 3.5kg for arguments sake
[23:11] <Randomskk> that's really quite a lot
[23:11] <Ches_> should lift that
[23:11] <Randomskk> have you tried using the burst calculator?
[23:12] <Ches_> yes, suggests Burst Altitude: 26691 m
[23:12] <Randomskk> what's the neck lift?
[23:12] <Ches_> likely to be accurate?
[23:12] <Randomskk> the calculator is fine
[23:12] <Ches_> Neck Lift: 5418 g
[23:12] <Randomskk> that's a lot of neck lift
[23:12] <Ches_> a lot of helium
[23:12] <Randomskk> you might struggle to hold it. I'd probably try and aim for a higher burst and less neck lift and helium
[23:13] <jonsowman> can you get the payload mass down?
[23:13] <Randomskk> omg haet os x development
[23:14] <Randomskk> trying to get fldigi with hamlib running is like
[23:14] <Randomskk> lol no
[23:14] <Ches_> maybe -just testing the calculator right now, against commin sense. e.g.
[23:14] <Randomskk> currently installing the several gigs of xcode 4.3 in the hope it upgrades libtool enough that hamlib is happy
[23:14] <Ches_> it suggests a 200g balloon can: Neck Lift: 6862 g Launch Volume: 6.88 m3 Burst Altitude: 636 m
[23:15] <Ches_> in reality would 6.88 m3 not burst a 200g balloon at sea level?
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[23:15] <Randomskk> it's a black box. shit in, shit out.
[23:16] <Randomskk> or the somewhat less profane https://en.wikipedia.org/wiki/Garbage_In%2C_Garbage_Out
[23:16] <SpeedEvil> The algorithm will likely break down as neck lift gets much higher than nominal
[23:16] <SpeedEvil> - a couple of hundred grams, and it can probably do 6.88m^3 - or whatever the normal burst radius is - even near the ground
[23:16] <Ches_> hmmm, ok
[23:17] <Ches_> the main issue is im doing 3.5kg, previosuly on 2000g balloon - no longer in stock. suggested i use 1600g, but worried about bursting the balloon pre 25k m
[23:18] <Ches_> calculator seems to think 1600g can do it to 26k m
[23:18] <Randomskk> then it probably can. but you will seriously struggle to accurately fill the balloon to that level of neck lift, and you will struggle to tie off and release properly too
[23:18] <Randomskk> you should put less helium in
[23:18] <SpeedEvil> But 200g seems unlikely
[23:18] <Randomskk> getting a slower ascent rate but a higher burst altitude and lower neck lift.
[23:19] <Randomskk> and indeed, a 200g would be silly.
[23:19] <SpeedEvil> oh - you meant 2000g
[23:19] <SpeedEvil> that's rather different
[23:19] <Ches_> here are results for 1600g doing 3.5kg
[23:19] <Ches_> Burst Altitude: 26691 m Ascent Rate: 5.26 m/s Time to Burst: 85 min Neck Lift: 5418 g Launch Volume: 7.23 m3 7227 L 255.2 ft3
[23:20] <Ches_> i did remember to adapt the Burst Diameter
[23:20] <Randomskk> what did you do to the burst diameter?
[23:20] <Randomskk> where it says "for advanced use only" it really means it
[23:21] <Ches_> the Burst Diameter for the 1600g is 8.2m
[23:21] <Randomskk> according to...?
[23:21] <Ches_> if that is input wrong then its all nonsense i assume
[23:21] <Ches_> http://www.scientificsales.com/8245-H-Hwoyee-Weather-Balloon-1600-Grams-Natural-p/8245-h.htm
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[23:23] <Randomskk> that's.. wrong
[23:23] <Randomskk> http://www.hwoyee.com/base.asp?scclassid=521
[23:24] <Ches_> its 10.5m in fact
[23:24] <Ches_> Scientific Sales is useless
[23:25] <Ches_> so 1600g doing 3.5kg is Burst Altitude: 32060 m Ascent Rate: 5.26 m/s Time to Burst: 102 min Neck Lift: 5418 g Launch Volume: 7.23 m3 7227 L 255.2 ft3
[23:26] <Ches_> probably about right
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[23:27] <Randomskk> you shouldn't really change the burst diameter
[23:27] <Randomskk> it's already programmed with the diameter for all the balloons on the dropdown
[23:28] <Ches_> thanks - good advice
[23:28] <Ches_> im assuming the calc is fairly good even in quite extreme cases
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[23:29] <Ches_> is anyone selling pre made kits for tracking and digital photography btw?
[23:29] <SpeedEvil> Ches_: For payloads much over nominal, it may be questionable.
[23:30] <Ches_> are you referring to another over 1.5kg?
[23:30] <SpeedEvil> Ches_: Simply as the tension round the balloon is not symmetric
[23:30] <SpeedEvil> If you imagine a free balloon - no payload - then the tension is equal all over it - it has a burst diameter of x.
[23:30] <Ches_> over 1.5kg classed as abnormal?
[23:31] <SpeedEvil> If you pull down at one point, it will burst at a smaller radius, as that point is loaded by more than just the tension of the membrane due to expansion.
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[23:31] <Ches_> ok - so it is likely to burst ealier than predicted with heavy payloads
[23:32] <SpeedEvil> yes
[23:32] <Ches_> but presumably we are talking a few thousand metres early, i,e, to 10k m instead of 30km
[23:32] <SpeedEvil> I'm not sure.
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[23:32] <SpeedEvil> I don't know what the heaviest loaded payload is.
[23:33] <Ches_> sorry i.e. NOT 10k m instead of a predicted 30km
[23:33] <SpeedEvil> I'd imagine not
[23:33] <Graeme_SHARP> Full SHARP photoset gradually appearing here as my connection stuggles to upload them all: http://www.flickr.com/photos/projectsharp/sets/72157629711214321/
[23:33] <Graeme_SHARP> (From todays launch that is)
[23:34] <Ches_> thanks SpeedEvil
[23:34] <Ches_> Is anyone selling pre made kits for tracking and digital photography btw?
[23:34] <Randomskk> no
[23:34] <Randomskk> but there are people selling the parts you need
[23:35] <Randomskk> if you wanted to build your own payload
[23:36] <Ches_> any links?
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[23:37] <Randomskk> http://ava.upuaut.net/store/ sells parts
[23:37] <Randomskk> http://randomengineering.co.uk/Random_Aerospace sells balloons, parachutes etc
[23:38] <Ches_> tracking and cameras required
[23:38] <daveake> And a notam
[23:39] <Randomskk> oh, yes, it's negligent of me to not mention http://ukhas.org
[23:39] <daveake> Just mentioning as that got missed recently
[23:39] <Randomskk> which has all the information you need
[23:39] <Randomskk> including the fact that you need a NOTAM and permission to launch
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[23:42] <Ches_> ok
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[00:00] --- Sun Apr 1 2012