highaltitude.log.20130421

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[02:43] <vk3yt> hi all
[02:44] <vk3yt> PSB just about to be released in Victoria/Australia
[02:44] <vk3yt> RTTY primary, APRS backup
[02:44] <vk3yt> with Gopro
[02:44] <vk3yt> Wish us luck :)
[02:45] <vk3yt> very windy, prediction is for 80km range
[02:49] <Darkside> cool
[02:49] <Darkside> id set up the predictions if i could
[02:51] <Darkside> vk3yt: you're not showing up on the map
[03:00] <vk3yt> thanks we just turned it on
[03:00] <Darkside> k
[03:00] <Darkside> i wont be able to get predictions running, i dont have access to the server anymore
[03:01] <Darkside> will have to fix that..
[03:01] <Darkside> bbl
[03:01] <Darkside> will be watching
[03:03] <vk3yt> just tested cutdown
[03:04] <vk3yt> worked ok
[03:06] <vk3yt> Darkside, looks like we are not listed as active flight any more, log tail shows habitat parsed our data ok
[03:06] <vk3yt> can you check for us?
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[03:19] <Darkside> its on the map
[03:19] <Darkside> so that should be enough
[03:20] <Darkside> i still see PSB on the flight list
[03:20] <Darkside> so i wouldn't sorry
[03:20] <Darkside> worry
[03:20] <Darkside> its still going on the map, and thats what counts
[03:22] <vk3yt> thanks
[03:22] <Darkside> whats the expected burst alt
[03:23] <vk3yt> 13k?
[03:23] <Darkside> 100g balloon?
[03:23] <vk3yt> oops, accidentally leave debug on
[03:23] <Darkside> note: i've gotten to 20km with a 100g balloon before
[03:23] <KT5TK> PSB has appeared on spacenear.us . Good luck!
[03:24] <vk3yt> yes
[03:24] <vk3yt> thanks
[03:24] <Darkside> whats the payload weight?
[03:24] <vk3yt> 220g
[03:25] <Darkside> hmm
[03:25] <Darkside> well if you start approaching 15km or so, i'll run up to my lofty
[03:25] <Darkside> as i should be able to hear it from there
[03:25] <Darkside> mt lofty*
[03:26] <Darkside> 600m alt
[03:26] <Darkside> anyway, ill be back later
[03:26] <vk3yt> yes you should be able too. we can change the TX to 100mW if required
[03:27] <KT5TK> Darkside: 600m in Adelaide? Better don't jump!
[03:27] <Darkside> vk3yt: 25mw is fine
[03:27] <Darkside> its LOS that i need
[03:27] <Darkside> hmm power flickering here
[03:27] <Darkside> bbl
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[03:40] Nick change: Vortex -> Vortex_1
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[04:12] <arko> eroomde: success!!
[04:12] <arko> ubuntu version works!
[04:12] <arko> programmed the board with no issues
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[05:04] <arko> Woohoo new doctor who!
[05:04] <KT5TK> Hmm, PSB doesn't move on spacenear.us . Maybe they lost the internet connection?
[05:16] foxtrotgulf (~foxtrotgu@cpe-065-190-013-059.nc.res.rr.com) left irc:
[05:22] <nigelvh> Evening KT5TK
[05:22] <nigelvh> How's things?
[05:23] <Darkside> hmm
[05:23] <Darkside> so vk3yt's rtty tracker is doing odd things
[05:28] <Darkside> hrm
[05:28] <Darkside> how do you get aPRS stuff onto the tracker..
[05:28] <nigelvh> Magic
[05:29] <Darkside> ;(
[05:29] <nigelvh> Also smart people
[05:29] <nigelvh> Magic and smart people
[05:29] <Darkside> sufficiently advanced technology
[05:29] <Darkside> anyway, the position reported by the PCB rtty payload, and the position showing on APRS (VK3YT-11) are very different
[05:30] <nigelvh> Time differences?
[05:30] <Darkside> no
[05:30] <Darkside> completely different area
[05:30] <nigelvh> Hmm...
[05:30] <KT5TK> At least they have APRS
[05:30] <nigelvh> some sort of encoding error perhaps...
[05:30] <KT5TK> I think they simply lost cellphone connection
[05:31] <KT5TK> APRS is igated by others
[05:31] <Darkside> nah
[05:31] <Darkside> seriously
[05:31] <nigelvh> But he said the times are the same.
[05:31] <Darkside> MASSIVE differences
[05:31] <Darkside> compare this
[05:31] <Darkside> http://aprs.fi/#!mt=roadmap&z=10&call=a%2FVK3YT-11&timerange=3600&tail=3600
[05:31] <Darkside> and the position on the map
[05:31] <Darkside> they are completely different
[05:31] <Darkside> even in the early prts of the flight
[05:32] <Darkside> on habitat its east of charlton
[05:32] <Darkside> but on APRS its not
[05:32] <nigelvh> spacenear.us/tracker/ is killing chrome.
[05:34] <KT5TK> Accordin PRADO_chase APRS seems correct
[05:34] <KT5TK> Maybe some coding error in the 70 cm tracker?
[05:35] <nigelvh> Recieved 59703 new positions.
[05:35] <Darkside> yep
[05:35] <nigelvh> Apparently trying to load a billion positions.
[05:35] <Darkside> i think hes dropped a zero
[05:35] <Darkside> yep
[05:35] <Darkside> hes dropping the leading zero
[05:35] <Darkside> just compared the APRS and RTTY data
[05:35] <Darkside> so at about 650m alt, APRS is reporting him at 36.3098, 143.0746
[05:36] <Darkside> on RTTY around then we see -36.3204,143.774
[05:36] <Darkside> if it was 143.0774 it would be correct
[05:36] <nigelvh> Ah
[05:36] <nigelvh> Mystery solved.
[05:36] <KT5TK> Who would have thought that 0 is so important....
[05:37] <Darkside> i guess they didn't test..
[05:37] <Darkside> i'll give him shit when i talk to him next
[05:38] <KT5TK> Darkside. Could we change the data on the fly with a script?
[05:38] <Darkside> could
[05:38] <Darkside> but htey arent uploading it
[05:38] <Darkside> probably stopped as they thought it was bad
[05:38] <Darkside> anyway
[05:38] <Darkside> when it gets to 10km i should be able to hear it from here
[05:38] <Darkside> ill get up on a ill soon
[05:38] <Darkside> hill
[05:38] <Darkside> problem is its raining torrentially here
[05:39] <KT5TK> When you receive it, at least record the data.
[05:39] <Darkside> i will be
[05:39] <Darkside> if ir eceive it
[05:39] <Darkside> anyway
[05:40] <KT5TK> The blue circle reaches you soon
[05:40] <KT5TK> Hi nigelvh btw
[05:40] <nigelvh> How's things?
[05:41] <KT5TK> Good. Was on a local hamfest today
[05:41] <nigelvh> Yeah? Find anything good?
[05:41] <KT5TK> Close to the place where the fertilizer company blew up
[05:41] <nigelvh> Yeah?
[05:41] <KT5TK> Some antenna parts
[05:42] <nigelvh> Just bits, or more like complete antennas.
[05:42] <KT5TK> A 902 MHz big wheel (which isn't really big)
[05:43] <KT5TK> For our 902 MHz ATV experiments next August
[05:43] <KT5TK> On BLT34 or so
[05:43] <nigelvh> I haven't used any wheel antennas.
[05:44] <nigelvh> I hear they can work pretty well.
[05:44] <KT5TK> The guy here simply prints them on a PCB
[05:44] <nigelvh> THAT *IS* interesting.
[05:45] <nigelvh> That would be facinating to try making.
[05:47] <KT5TK> http://www.wa5vjb.com/
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[05:49] <nigelvh> Those are fantastic. Yagis and Log Periodics.
[05:49] <nigelvh> I've considered patches, but I hadn't considered those.
[05:50] <KT5TK> In deed. For 5 ... 15 dollars it's probably not worth designing your own
[05:50] <nigelvh> True enough.
[05:51] <KT5TK> He does this for quite some time and has optimized them
[05:51] <KT5TK> unless you have a special freq or requirement
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[05:53] <nigelvh> Those PCB horns are intruiging as well.
[05:55] <Darkside> ok im gonna go for a drive up into the hills
[05:55] <KT5TK> Yes, do that. Good DX!
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[06:23] <arko> woo
[06:23] <arko> launches today ay?
[06:35] <Darkside> right
[06:35] <Darkside> im in position
[06:35] <Darkside> cant hear it
[06:35] <Darkside> gonna throw on a SAW filter and preamp
[06:35] <Upu> morning
[06:36] <arko> morning Upu
[06:36] <Upu> yes Arko Stratodean is launching
[06:36] <arko> PSB?
[06:36] <Darkside> im after PSB
[06:36] <Darkside> im at 700m ASL atm
[06:37] <arko> also it's cold outside and my beard is gone... i need a fireplace
[06:37] <Upu> still want prediction setting up Darkside ?
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[06:39] <arko> is stratodean's hab on habhub? i maybe blind here
[06:39] <Robint91> hi all
[06:39] <arko> wass up
[06:39] <Upu> not yet
[06:39] <Darkside> Upu: nah
[06:39] <Darkside> the telemeetry has issues
[06:39] <Upu> ok
[06:40] <Robint91> are we going to track stratodean's hab today?
[06:40] <arko> eroomde: awake yet?
[06:40] <Robint91> where is the launch site?
[06:42] <G0DJA> robint91 it says "Forest of Dean" on Spacenear.us/tracker for Stratodean
[06:42] <Robint91> G0DJA, yeah, found that but not on the map it self
[06:42] <G0DJA> Not yet
[06:43] <G0DJA> Not until someone spots them or an admin puts a symbol up for it
[06:43] <Robint91> mh
[06:43] <Robint91> found them
[06:44] <Robint91> they have an antenna symbol
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[06:44] <Robint91> will this be a floater?
[06:44] <G0DJA> So they do :)
[06:45] <G0DJA> Off to make a cuppa as launch not due until 9am UTC
[06:48] <Darkside> still cant see it
[06:48] <Robint91> Darkside, http://i.imgur.com/Ywmsy8r.png
[06:48] <Darkside> busy
[06:51] <Darkside> i see it
[06:51] <Darkside> see the signal
[06:51] <Darkside> not decoding well
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[06:53] <Darkside> $$$PSB,511,06:53:34,-37.595,14<4,1`1!,30.94,-150,0,0,2.5,-1.2,2510,_*C15C
[06:53] Last message repeated 1 time(s).
[06:53] <Darkside> urgh
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[07:01] <malgar> hello! how to set a custom location here? http://hourly.cusf.co.uk/
[07:06] <Darkside> malgar: you can't
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[07:23] <number10> morning RocketBoy - I take it you recovered hablab lastnight
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[07:24] <Upu> hey kpiman
[07:25] <Upu> just saw your mail
[07:25] <Upu> will come back to you shortly
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[07:25] <kpiman> Hi, thanks
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[07:26] <RocketBoy> hi number10 - yep - got it back
[07:27] <jcoxon> RocketBoy, see PM
[07:27] <RocketBoy> it was almost beside the road - landed in a recently ploughed field
[07:27] <RocketBoy> ok
[07:27] <number10> didnt look to bad from tracker map.. the QM transmissions were not good
[07:27] <number10> +o
[07:28] <RocketBoy> yeah - interesting antennas - one was a 70cms patch - the other a 70cms helix
[07:29] <arko> woah did stratodean already fly?
[07:31] <number10> I suspect they wouldnt have found the second payload - if it burst the same as the other it would have landed not far from me.
[07:33] <Upu> no arko
[07:34] <arko> kk
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[07:36] <M1AFY> is STRATODEAN launching today?
[07:37] <jcoxon> thats their plan
[07:40] <malgar> yesterday someone told me that for ballons under 2m NITAM in not necessary. Could you give me a link reporting this?
[07:40] <jcoxon> malgar, you in the UK?
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[07:42] <malgar> jcoxon: no, italy.. but I'm interested in UK law :)
[07:42] <jcoxon> oh right
[07:42] <jcoxon> http://wiki.ukhas.org.uk/general:restrictions_legality
[07:42] <jcoxon> its less then 2m at all times during flight
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[07:43] <RocketBoy> malgar: thats not strictly true - to be exempt the balloon and its payload, line parachute etc
[07:43] <RocketBoy> must fit in the 2m
[07:43] <RocketBoy> its from the air navigation order
[07:43] <RichiH> anyone from southern germany here?
[07:44] <Upu> I think Lunar lander is from Northern Germany
[07:45] <malgar> it seems that in italy NOTAM is always compulsory :(
[07:45] <Upu> though there is a launch on so he won't be here
[07:45] <malgar> even for a party balloon.. it seems absurd to me
[07:48] <RocketBoy> here is the line from the UK ANO "Small balloon means a balloon of not more than two metres in any linear dimension at any stage of its flight, including any basket or other equipment attached to the balloon;"
[07:49] <malgar> RocketBoy: I see
[07:49] <malgar> the only exception in italy is for flying objects under 150 m from the ground :(
[07:50] <malgar> 150 m!!!
[07:50] <Upu> thats the new hobby of low altitude ballooning, I tried it the other weekend its not good
[07:51] <malgar> :D
[07:52] <Uggy> :)
[07:53] <RocketBoy> yeah there are a bunch of guys over in #lowaltitude
[07:55] <x-f> alternatively you can check out #sealevel too
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[07:59] <Lunar_Lander> hello
[07:59] <x-f> hi, Lunar
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[08:05] <Lunar_Lander> hi S_Mark
[08:06] Nick change: Willdude123 -> WILLdude
[08:06] <WILLdude> I like my new nick.
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[08:06] <WILLdude> Hmm.
[08:06] <WILLdude> WILLdude or Willdude123.
[08:07] <S_Mark> Hi all, at site
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[08:10] <WILLdude> Wonder where I should put my quarter wave to attempt to receive this.
[08:10] <Babs> Good luck S_Mark
[08:10] <WILLdude> I wonder if there's much point in me getting a yagi.
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[08:10] <WILLdude> They are a lot of money and I couldn't permanently mount it.
[08:10] <Babs> I send you John Glenn karma http://m.youtube.com/#/watch?v=5soUes2-LrU&desktop_uri=%2Fwatch%3Fv%3D5soUes2-LrU
[08:11] <WILLdude> Upu: You around?
[08:11] <Upu> depends if its complicated
[08:11] <Babs> Arf
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[08:12] <WILLdude> Upu: It's not code, don't worry.
[08:13] Willdude123 (~Willdude1@wikipedia/W-D) joined #highaltitude.
[08:14] <Willdude123> Upu: I'll pm you.
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[08:17] Nick change: Willdude123 -> WILLdude
[08:20] <Lunar_Lander> S_Mark, best of luck
[08:20] <Lunar_Lander> it will be awesome when the balloon lifts off
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[08:27] <number10> anyone from stratodean here?
[08:27] <Upu> S_Mark <-
[08:27] <Lunar_Lander> yeah S_Mark is
[08:28] <number10> S_Mark: do you have a dial frequency and exact shift?
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[08:28] <number10> just may set up radio and see if it catches it
[08:28] <M1AFY> what do you need to appear as a listening station on the tracker map?
[08:28] <number10> run dl-fldigi
[08:29] <Babs__> M1AFY - just set up your co-ordinates on dl-fldigi
[08:29] pb0ahx (53560375@gateway/web/freenode/ip.83.86.3.117) joined #highaltitude.
[08:29] <Babs__> ie post in your lat and long
[08:29] <M1AFY> cheers,, mmm i have.
[08:30] M6CSV (52085acd@gateway/web/freenode/ip.82.8.90.205) joined #highaltitude.
[08:30] <WILLdude> Where are the stratodean predictions heading?
[08:31] <GMT> M1AFY, what's your approximate location so I can check to see when you appear on the map?
[08:33] <GMT> 'AFY, no problem, found the info
[08:34] <GMT> any chance of getting the other balloons and chase vehicles removed from Spacenear?
[08:34] <eroomde> morning all
[08:34] <arko> sup eroomde
[08:35] <arko> Upu: added temp sensor and ran VCC to an ADC pin
[08:35] <eroomde> i am at the beach. i have coffee. i have just got up
[08:35] <eroomde> alles gut
[08:35] <arko> which now that i think about it, doesn't make much sense
[08:35] <arko> yay!
[08:35] <arko> eroomde nice
[08:35] <eroomde> that doesn't make much sense old abana no
[08:35] <eroomde> banana*
[08:35] <WILLdude> What is the vbatt pin?
[08:36] <arko> yeah fixing, i just realized what i did
[08:36] <WILLdude> On Upu's ublox breakouts.
[08:36] <arko> scotch and eagle should not mix like this
[08:36] <arko> btw, got ise working in ubuntu
[08:36] <arko> however, my program is running wayyy to fast
[08:36] <eroomde> WILLdude: backup battery supply input
[08:36] <arko> sampling buttons at almost 50Mhz
[08:36] <WILLdude> Is sdean going up anytime soon?
[08:36] <WILLdude> Where are the predictions heading?
[08:37] <arko> debounce is insane, to the point that i can see led's lighting as my finger approachs the buttons
[08:37] <arko> some capacitance thing
[08:37] jcoxon (~jcoxon@host86-136-68-30.range86-136.btcentralplus.com) joined #highaltitude.
[08:37] <eroomde> WILLdude: you know how the gps can take a bit of time to get a lock? that's because it's having to download data sent by the sattelites about where the sattelites are in space relative to each other (which it needs to know to calculate where it itself is)
[08:37] <jcoxon> is VK3yt floating?
[08:38] <eroomde> it stores that data in ram locally. ram is volatile, i.e. the information in it dissappears if you remove power from it. so the backup battery is there just to keep the data in the ram even if you take away the pain power, so you can get a lock more quickly when you apply power the next time (maybe just 1 or 2 seconds)
[08:38] <GMT> was everybody aware that there was a balloon launch in Thailand overnight
[08:38] <eroomde> the ram takes almost no power to keep 'hot' so the backup batteries are usually just small coin cells that will last many years
[08:38] <S_Mark> 10am launch
[08:38] <S_Mark> hopefully
[08:38] <S_Mark> lol
[08:40] <arko> man i feel stupid, amature mistakes
[08:40] <eroomde> you're winding a motor?
[08:40] <x-f> good luck with the launch and recovery, S_Mark
[08:41] <eroomde> an unusually pedantic troll for me
[08:41] <arko> ?
[08:41] <eroomde> amateur / armature
[08:41] <arko> >_< mah gat
[08:41] <arko> brb driving home
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[08:44] <griffonbot> Received email: Steve Aerospace "Re: [UKHAS] Altitude control with valve"
[08:49] WillDuckworth (~will@host86-140-109-4.range86-140.btcentralplus.com) joined #highaltitude.
[08:53] <Lunar_Lander> GMT, in thailand?
[08:53] <Lunar_Lander> that is a first
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[08:55] <pb0ahx> good mornig all
[08:55] <fsphil> morning pb0ahx
[08:55] <Lunar_Lander> eroomde, who tries to use a motor?
[08:56] Hix (~Hix@78-86-52-167.zone2.bethere.co.uk) joined #highaltitude.
[08:56] <nommo> morning
[08:56] <fsphil> one of the flights yesterday had a servo I believe
[08:56] <Lunar_Lander> ah
[08:57] <eroomde> Lunar_Lander: don't worry
[08:57] <Lunar_Lander> ah
[08:57] <eroomde> i was making a very poor joke
[08:57] <Lunar_Lander> ah
[08:57] <Lunar_Lander> what I would like to ask
[08:57] <WILLdude> So which way will sdean come?
[08:58] <Lunar_Lander> the sarantel GPS has a battery holder sent with it
[08:58] <WILLdude> Is there a prediction?
[08:58] <fsphil> WILLdude: he'll be coming 'round the mountain when he comes
[08:58] <Lunar_Lander> is that for keeping the settings by providing backup power?
[08:58] <fsphil> it keeps settings and the satellite data
[08:58] <Lunar_Lander> ah
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[08:59] <WILLdude> Urgh.
[08:59] <WILLdude> My antenna fails.
[08:59] <WILLdude> Or it's line of sight where it is does.
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[09:01] <WILLdude> Meh.
[09:03] <mfa298> WILLdude: I suspect sdean will fly roughly SE from the launch location (but that's pure guessing), you could always try plugging some numbers into a predictor and see what happens
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[09:05] <nommo> WILLdude: http://www.stratodean.co.uk/2013/04/tomorrow-is-launch-day.html < predicted path there
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[09:06] <fsphil> my hourly predictor has went from getting-better to you-suck
[09:06] <fsphil> at this rate it'll be 2014 before I launch
[09:06] <S_Mark> ok
[09:06] <S_Mark> lift in a few mins
[09:06] <fsphil> lift, or launch?
[09:06] <nommo> S_Mark: Good luck!
[09:07] <mfa298> hmmm, I suppose I should stick an antenna out the window and see what I recieve
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[09:13] <arko> Woot
[09:13] <WILLdude> arko: What?
[09:13] <arko> Home
[09:13] <arko> Super cozy
[09:13] <eroomde> result
[09:13] <fsphil> gotta love home
[09:14] <fsphil> ~
[09:14] <arko> :( im almost never hoke
[09:14] <arko> Home
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[09:15] <S_Mark> up
[09:15] <nommo> S_Mark, :)
[09:16] <mfa298> S_Mark: it looks like you stopped uploading telemetry a few minutes ago.
[09:16] <arko> Hmm, do most people do a voltage divider for batt voltage sensing?
[09:16] <fsphil> updating here mfa298
[09:17] <fsphil> I used a 10:1 divider
[09:17] <mfa298> it just updated here
[09:17] <mfa298> and I can see faint lines on the waterfall
[09:17] <arko> Woah, 10:1?
[09:17] <arko> I was thinking 3:1
[09:18] <fsphil> probably overkill. the board was running at 3.3v but could be powered from 12v
[09:18] <arko> And referencing the internal 1.4v
[09:18] <arko> Or somethingnlike that inside
[09:18] <nommo> I was hoping to try tracking SDEAN with Globaltuners, but I'm stll waiting for account to be authorised :(
[09:18] <arko> I need to read the datasheet
[09:18] <fsphil> I think as long as the max battery voltage is divded enough to keep it below your reference voltage
[09:19] <arko> Figure so
[09:19] <arko> Ill mess with it tomorrow, im to sleepy
[09:20] <fsphil> yea it must be silly hours there
[09:20] <Upu> dial on Strato ?
[09:20] <daveake> 434.652
[09:20] <mfa298> .651 according to my fcd+ (which seems fairly decent)
[09:20] <Upu> ta
[09:21] <Upu> oh yes I see it
[09:21] <Darkside> .650+-3KHz
[09:21] <Darkside> tune until you see the lines
[09:21] <daveake> :)
[09:21] <Darkside> nobodies VFO is goign to be that accurate
[09:21] <daveake> indeed
[09:21] <Darkside> unless its gps locked, its going to be out by a little bit
[09:21] <daveake> Always fun when people quote to the nearest 100Hz or better
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[09:21] <WILLdude> I might have almost got something.
[09:21] <arko> Oh nice, 1.1v ref with this, anyway, ya its 2:20am.. night yall, good luck on flights!
[09:21] <WILLdude> Oh no, it's interference.
[09:22] <fsphil> nite arko
[09:22] <SpeedEvil> rubidium references are inexpensive
[09:22] <daveake> Keep missing the $$s
[09:22] <fsphil> needs moar 0x00's
[09:22] <SpeedEvil> not cheap yet alas
[09:22] <daveake> needs less gap :)
[09:22] <mfa298> WILLdude: you might need to look at the waterfall if it's weak, I was starting to get decodes before I could hear the rtty
[09:22] <fsphil> you're looking for two wobbly lines :)
[09:23] <fsphil> it's the wobble I usually spot first
[09:23] <fsphil> the tell tail sign of a transmitter not enjoying the temperature
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[09:23] <daveake> Actually that's a plus for the gaps - 2 lines but one keeps disappearing
[09:24] <fsphil> yea it's easier identified
[09:24] <fsphil> esp for the higher baud rates
[09:24] <fsphil> but I'd still rather have no gaps
[09:25] <RocketBoy> mee 2
[09:26] <Lunar_Lander> S_Mark, cool!
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[09:26] Nick change: nommo_ -> nommo
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[09:27] <daveake> mee three
[09:28] <Babs__> Whats the frequency? (Kenneth)
[09:29] <fsphil> 434.650ish
[09:31] <Babs__> Thanks fsphil. I have it very faint here.
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[09:32] <LokisSword> morning :)
[09:33] <LokisSword> what's the dial frequency for Stratodean?
[09:33] <Upu> 434.650
[09:33] <Upu> exactly on my 817
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[09:33] <LokisSword> Got it to :)
[09:34] <Hix> great signal on 434.650 here http://i.imgur.com/m7xrdF2.png
[09:34] <LokisSword> My first decode
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[09:34] <WILLdude> No signal as predicted.
[09:34] <Hix> unfotunately its a solid tone and not stratodean :/
[09:34] <LokisSword> Hmm if line is red in fldigi, does that mean a CRC fail?
[09:34] <Upu> yes
[09:35] <mfa298> WILLdude: keep at it, it can take a while to find it at first, but with practice you'll learn what works and how to spot transmissions
[09:35] <S_Mark> everything ok?
[09:36] <S_Mark> we are just about to set off to track
[09:36] <LokisSword> Yay green at last!
[09:36] <mfa298> S_Mark: very nice signal well done
[09:37] <Wouter-[pa3weg]> getting some guys ready in NL to track
[09:37] <Upu> cool
[09:37] <Upu> good signal S_Mark
[09:37] <Upu> I'd get in the car and go :)
[09:37] <Upu> long drive
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[09:38] <Hix> S_Mark: gmail account for OS map for recovery yes?
[09:38] <Hix> and pdf ok or png?
[09:38] <S_Mark> hi hix, yes please
[09:38] <S_Mark> pdf if is fine thank you
[09:39] <Hix> nps, will keep on it for ya
[09:39] <griffonbot> Received email: Jens Pirnay "Re: [UKHAS] Re: DL-FLDFIGI [Win] GPS Setvbuf error"
[09:39] <Babs__> Dean signal very clean in London now
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[09:40] Nick change: junderwood -> junderwood_M0JCU
[09:40] Nick change: Upu -> Upu_M0UPU
[09:40] <Upu_M0UPU> :)
[09:41] <Babs__> Whats the very faint thin line about 1 inch (on my laptop anyway) to the right of the Dean signal?
[09:41] <junderwood_M0JCU> Upu_M0UPU, You have some catching up to do after last night
[09:41] <Upu_M0UPU> on stats ?
[09:41] <junderwood_M0JCU> :)
[09:41] <Hix> Babs__: you around london?
[09:41] <Upu_M0UPU> yeah I was out I only received the last 10 mins of it
[09:42] <Hix> Got SDEAN :) good sig
[09:42] <junderwood_M0JCU> I was out but luckily I managed to get a signal before I left.
[09:42] obell (56a6239b@gateway/web/freenode/ip.86.166.35.155) joined #highaltitude.
[09:42] <Hix> through the house as westerly
[09:42] <junderwood_M0JCU> Auto rig control is great
[09:42] <fsphil> hah, the SDREAN signal appeared right where fldigi was tuned
[09:42] <Babs__> Hix - Yes, in Fulham. You can spot me walking around on my roof with an aerial above my head trying to find a clear line of sight gap between the chimney pots.
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[09:43] <Hix> Babs__: got terrible just to right of mine here http://i.imgur.com/m7xrdF2.png
[09:44] <fsphil> that's loud
[09:45] <Babs__> Hix - whats that mystical bit of software you are using?
[09:45] <griffonbot> Received email: Daniel Richman "Re: [UKHAS] Re: DL-FLDFIGI [Win] GPS Setvbuf error"
[09:45] <g4fui> AOS in Penrith
[09:45] <Hix> SDR# Babs__
[09:45] Nick change: fsphil -> fsphil_MI0VIM
[09:46] <Hix> Upu_M0UPU: this E4000 dongle is really good, ?I would say equal to or better than my AR8000
[09:46] <Upu_M0UPU> I can't get my SDR working any more
[09:46] <Hix> without HABAMP - can imagine really good with one
[09:46] <Babs__> As a brief interlude, all batteries and tracking equipment in BABSHAB now nicely stowed away http://www.flickr.com/photos/91049302@N00/8666243034/in/set-72157632733154985/
[09:47] <Upu_M0UPU> lets see if it can see this
[09:47] <nommo> Hix: It was pay day on Friday - I'm planning on ordering some kit - you rate the E4000 based dongle?
[09:48] <Hix> nommo: the one I've got is from cosycave £9.15 iirc, it seems great once you've modded it pics to show you comin up
[09:48] <Hix> great work Babs__ really neat job
[09:48] <Hix> :)
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[09:48] <nommo> Hix: This one: https://www.cosycave.co.uk/product.php?id_product=267 ??
[09:49] <nommo> Hix: Will I need to order a soldering iron too? ;)
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[09:49] <Hix> nommo: yes and yes
[09:49] <Hix> http://i.imgur.com/FOjFQBQ.jpg
[09:49] <Hix> http://i.imgur.com/WpZEFYJ.jpg
[09:49] <Hix> http://i.imgur.com/s05EcqD.jpg
[09:49] <Hix> http://i.imgur.com/Zw4pqWe.jpg
[09:50] <Hix> is what I did you'll alsoo need an SMA end launch see upu store and I've got SMA-BNC adator there too
[09:50] <Upu_M0UPU> ah yes
[09:50] <Babs__> Ta Hix - still inevitable that I just wrap the whole thing up in gaffer tape though
[09:50] <Upu_M0UPU> it seems my habamp in a box is broken
[09:50] <Hix> :(
[09:50] <nommo> Hix: Thanks!
[09:51] <Upu_M0UPU> decoding fine on a E4000 with no habamp
[09:51] <Hix> the cosycave one Upu?
[09:51] <Hix> or your brand
[09:51] <fsphil_MI0VIM> spot the payload: http://i.imgur.com/6ucSdCp.png
[09:51] <Upu_M0UPU> no an original old school one
[09:52] <Hix> ok
[09:52] <nommo> Hix: Very tidy... the soldering troubles me a little but I've done soldering in the dark and distant past...
[09:52] <Upu_M0UPU> http://i.imgur.com/3RxWjiq.png
[09:53] <fsphil_MI0VIM> nice
[09:53] <Hix> it's not that bad, practice on something with a pcb that is already buggered
[09:53] <Upu_M0UPU> top FCD with HABAMP, middle E4000 with no HABAMP bottom 817 no amp
[09:53] <nommo> Upu_M0UPU: Would that be an EZCap?
[09:53] <Upu_M0UPU> FCD & 817 are on Yagi
[09:53] <Upu_M0UPU> E4000 is on colinear
[09:53] <Upu_M0UPU> yes nommo
[09:54] <nommo> Upu_M0UPU: Thanks - I see Cosycave have those too
[09:55] <Upu_M0UPU> if you switch to tuner AGC its a better signal
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[09:58] <WILLdude> Upu_M0UPU: Failed now, I'm givingup.
[09:58] <Hix> oh, prediction is showing up near me, could be interesting
[09:58] <WILLdude> There's no chance of getting this.
[09:59] <Upu_M0UPU> ok will
[09:59] <Upu_M0UPU> until you get that antenna outside and high up its probably not going to work
[09:59] <Hix> WILLdude: do what I said yesterday [shh] they are really helpful :)
[09:59] <fsphil_MI0VIM> woo, decode
[10:00] <nommo> Upu_M0UPU: Ah! You run the store... I'll be in touch :)
[10:00] <Upu_M0UPU> lol
[10:00] <Upu_M0UPU> tis me
[10:00] <nommo> Hix: What antenna you got there?
[10:01] <Upu_M0UPU> btw there is a new version of the HABAmp coming
[10:01] <Upu_M0UPU> just need to test it
[10:01] <Upu_M0UPU> also works for ADS-B (/me pokes Jaord)
[10:01] <Upu_M0UPU> jarod even
[10:01] <nommo> Upu_M0UPU: I'm still trying to get my head around who is who never mind what is what!
[10:01] <Hix> nommo: LPRS 7 Element Yagi - pointing straight through the house.
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[10:02] <nommo> Hix: Ta - and you point it in the right direction for each flight?
[10:02] <Hix> http://www.lprs.co.uk/wireless/antennas/yagi-antennas.html
[10:03] <Hix> yes, directional. Got it on a manfrotto magic arm secured to window frame
[10:03] <Hix> nommo: thus: http://i.imgur.com/ekX850F.jpg
[10:04] <nommo> Hix: Nice!
[10:04] <WILLdude> Hix: I'd feel really gulty.
[10:04] <WILLdude> *guilty
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[10:06] <Upu_M0UPU> or that WILLdude Yagi is good
[10:07] <RocketBoy> http://www.lprs.co.uk/wireless/antennas/yagi-antennas.html YAGI-434A Polarization: Vertical
[10:07] <RocketBoy> w*nker
[10:07] <RocketBoy> s
[10:09] Wouter-[pa3weg] (wouter@5354D2D3.cm-6-5d.dynamic.ziggo.nl) left #highaltitude.
[10:09] <Upu_M0UPU> This is expensive but really well built
[10:09] <Upu_M0UPU> http://www.arrowantennas.com/arrowii/440-5ii.html
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[10:09] <Hix> suboptimal westerly configuration :/ http://i.imgur.com/IGANBvN.jpg
[10:09] <gonzo__> that lprs 24ghs antenna is a waste of time though. Would be better off with wet string
[10:10] <Hix> still working well though
[10:10] <gonzo__> 2.5ghz
[10:10] <gonzo__> 2.4ghz
[10:10] <Lunar_Lander> yay Mark reached the stratosphere
[10:10] <Lunar_Lander> presumably
[10:10] <Lunar_Lander> can only be sure with a temperature reading
[10:11] <PE2G> Morning all, what is current dial for SDEAN?
[10:11] <Upu_M0UPU> 434.650
[10:11] <Upu_M0UPU> morning PE2G
[10:11] <Babs__> Is there a prediction on where SDEAN will land?
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[10:12] <PE2G> That is quick! Thanks
[10:12] <Lunar_Lander> Babs__, yeah check spacenear
[10:12] <Lunar_Lander> the thin line ahead of the balloon
[10:12] <Hix> currently near stevenage Babs__
[10:12] don_k (2ecd7313@gateway/web/freenode/ip.46.205.115.19) joined #highaltitude.
[10:12] <Lunar_Lander> wow the coverage is amazing
[10:12] <Lunar_Lander> check the list of receivers
[10:13] <Hix> oh, who is "Test" on spacenear just up from me on the M11?
[10:13] S_Cassie (~s_cassie@212.183.128.27) joined #highaltitude.
[10:13] <pb0ahx> yes i heard the stratodean in Delft holland
[10:13] <Lunar_Lander> 20 receivers
[10:13] <Lunar_Lander> S_Cassie, good flight!!! :)
[10:13] <Lunar_Lander> and someone in France can copy it too
[10:13] <pb0ahx> it is my first hearing of a bollon
[10:14] <Lunar_Lander> pb0ahx, congrats :)
[10:14] <Lunar_Lander> btw
[10:14] <Lunar_Lander> who is the guy in the English Channel?
[10:15] <Lunar_Lander> M1AFY
[10:15] ON5RZ (53864256@gateway/web/freenode/ip.83.134.66.86) joined #highaltitude.
[10:15] <Hix> someone forgot a -ve lon :)
[10:15] <cuddykid> he sits on a boat out there listening in - it's his preferred position to listen in to HAB flights :)
[10:15] <Lunar_Lander> xD
[10:15] LazyLeopard (~irc-clien@203.59.139.151) joined #highaltitude.
[10:15] <Lunar_Lander> hello to belgium ON5RZ
[10:15] <Lunar_Lander> :)
[10:15] <Hix> is there any chance of clearing the tracker of tests?
[10:16] jijdaar (5352e5cb@gateway/web/freenode/ip.83.82.229.203) joined #highaltitude.
[10:16] <Lunar_Lander> don't have a TEST here
[10:16] <Babs__> Lunar_Lander , Hix - was looking out for out for that - Can't see a line like other times?
[10:16] <Lunar_Lander> Babs__, strange
[10:16] <Lunar_Lander> did you try a refresh?
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[10:16] <Babs__> Its updating, let me do a screen grab
[10:17] <Hix> Babs__: it appeared late on mine
[10:17] <Randomskk> yea it takes a little while to appear
[10:17] <Hix> no chase car app S_Cassie ?
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[10:19] <Babs__> Lunar_lander - rebooted the page and all good. Thanks!
[10:21] <Lunar_Lander> yay
[10:21] <Hix> oh Babs__ forgot to link http://sdrsharp.com/
[10:22] <nommo> Did any of the payloads from yesterday get recovered BTW?
[10:22] <Hix> nommo: if you want to save on shelling out on an iron just yet, you can send me the bits and I'll be happy to mod it for you
[10:23] <nommo> Hix: Really?! That would be most kind & awesome. I should probably get in touch off-channel and discuss my shopping list ;)
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[10:26] <pws> Does anyone know the true freq. of SPACE-signal of SDEAN ???
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[10:27] <Hix> 434.650 pws
[10:28] <pws> tnx...
[10:28] <Hix> nps
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[10:28] <Hix> pretty good signal too
[10:28] <fsphil_MI0VIM> lovely signal here now
[10:29] <Hix> s/n is @22dB here but perfect decodes
[10:29] <gonzo__> I get a space of 434.6520
[10:29] <Hix> everytime
[10:29] <gonzo__> good to about 100hz
[10:29] <fsphil_MI0VIM> the signal is solid. I've a very narrow bandwidth set in the sdr
[10:29] chrisstubbs (~chrisstub@host86-173-241-252.range86-173.btcentralplus.com) joined #highaltitude.
[10:29] <fsphil_MI0VIM> and i've not had to retune
[10:29] <Hix> yo chrisstubbs
[10:29] S_Cassie (~s_cassie@92.40.253.211.threembb.co.uk) joined #highaltitude.
[10:29] <Hix> me neither fsphil_MI0VIM
[10:30] <chrisstubbs> bluescreened
[10:30] <Hix> might be able to mix HAB and bacon with such a solid signal :D
[10:30] <chrisstubbs> Hix i was thinking exactly the same
[10:30] henk_ (d97bd8c6@gateway/web/freenode/ip.217.123.216.198) joined #highaltitude.
[10:30] <Hix> heh
[10:30] <S_Cassie> having some 3g issues but think we are ok for now
[10:30] <chrisstubbs> Hi S_Cassie
[10:31] Nick change: S_Cassie -> S_Mark
[10:31] <S_Mark> its me lol
[10:31] <Babs__> Thanks Hix - do you use it instead of fldigi or as a supplement?
[10:31] <chrisstubbs> Great signal, nice and strong
[10:31] <chrisstubbs> but no chase car?
[10:31] <Hix> no, asked but they timed out just as i did
[10:31] <S_Mark> ah good, just turning on the app now
[10:32] <Babs__> Hmmmmm. Bahrain GP vs. tracking vs. window cleaning dilemma
[10:32] <Hix> ha, hi S_Mark all going well?
[10:32] <chrisstubbs> There we go chase car is up
[10:32] <mfa298> fsphil_MI0VIM: I think from the point it came over the horizon here it's drifted around +/- 200Hz - which is very impressive
[10:32] <Hix> it'll rain Babs__ leave them.
[10:32] malgar (~malgar@adsl-ull-46-50.49-151.net24.it) joined #highaltitude.
[10:32] <Hix> signal is strong so GP and HAB are possible
[10:33] <PE2G> Got my first good decodes at dx 574 km: http://s23.postimg.org/l6rfgax57/Screen813.jpg
[10:34] <bertrik> PE2G: nice
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[10:34] <Upu_M0UPU> fair distance :)
[10:34] <Babs__> But Mother is visiting and she appreciates windows far more than HAB tracking...the lack of drift on SDEAN is pretty awesome. When the guys get it back it will be interesting to work out whether it is heat generated from the arduino dropping down the 9V it is being supplied and dissipating as heat, or just good insulation
[10:34] S_Mark (~s_cassie@212.183.128.68) joined #highaltitude.
[10:35] <S_Mark> Hi, sorry, could someone clear the red chase car?
[10:35] <Upu_M0UPU> yeah
[10:35] <S_Mark> we had app issues too but all sorted :p
[10:35] <Upu_M0UPU> done
[10:36] ON4QE (4e1570ab@gateway/web/freenode/ip.78.21.112.171) joined #highaltitude.
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[10:37] Nick change: S_Mark -> S_Cassie
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[10:39] <S_Cassie> Ok, all settled in the chase car now, had some initial signal problems. Part and parcel of rural life!
[10:39] Wouter-[pa3weg] (~wouter@cust-95-128-95-33.breedbanddelft.nl) joined #highaltitude.
[10:39] <Wouter-[pa3weg]> back online, now in Delft
[10:40] <Wouter-[pa3weg]> decoding Stratodean
[10:41] <Hix> S_Cassie: signal is great, and virtually imperceptible drift if any. Good work. Makes combining breakfast and HAB a doddle :D
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[10:42] <Hix> looks like A40 - A418 is your easiest route to chase
[10:42] <Morseman> Nice signals from Stratodean even if I missed the launch :-)
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[10:43] <Wouter-[pa3weg]> S9 on stratodean here
[10:43] <pws> Is the MARK-freq. below or above 434.652 ???
[10:43] <S_Cassie> Hix That's great news! We wouldn't want to disrupt the most important meal of the day! :)
[10:43] <Hix> heh
[10:43] <Hix> mmmm bacon
[10:44] Action: daveake has had bacon today
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[10:44] <daveake> and sausages egga and beans
[10:44] Action: Hix is about to make bacon
[10:44] <Hix> with them too daveake
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[10:44] <Hix> and sod it - fried slice too. It's a nice day :)
[10:45] <G0DJA> Although I'm getting the problem of stray characters in the continuous tone before the $$ causing bad decodes
[10:45] <nommo> Stop!!! Mmmmmm bacon....
[10:45] <daveake> nom nom nommo
[10:45] <Hix> heh
[10:46] Action: G0DJA reads note to sell abbout adding redundant $ in transmission
[10:46] <G0DJA> self
[10:46] chrisg7ogx (0278e35f@gateway/web/freenode/ip.2.120.227.95) joined #highaltitude.
[10:46] <nommo> daveake: Hehe - I did have an awesome Eggs Benedict yesterday
[10:46] <daveake> ah love that
[10:46] <Hix> arghhh no funghi :/
[10:47] WillDuckworth (~will@host86-140-109-4.range86-140.btcentralplus.com) joined #highaltitude.
[10:47] <Hix> back in a mo. this needs sorting!!
[10:47] <nommo> Yes homemade even better - I think it's Potato Cakes only today :(
[10:47] GW8RAK (~chatzilla@host-92-17-91-159.as13285.net) joined #highaltitude.
[10:47] <chrisg7ogx> great sigs i can hear it downstairs
[10:47] <nommo> S_Cassie: Are you tracking in the car?
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[10:48] <nommo> Hah - good timing with that question
[10:49] jcoxon (~jcoxon@host86-136-68-30.range86-136.btcentralplus.com) joined #highaltitude.
[10:49] <Morseman> Wow sudden drop in RX stations then all back in again!
[10:49] ON4CDJ (4e1658d7@gateway/web/freenode/ip.78.22.88.215) joined #highaltitude.
[10:49] <mfa298> for mobile tracking I've found having irssi on a stable machine and then using mosh to connect to it is a lot more useful.
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[10:50] <mfa298> having 3g drop out regularly is a pita
[10:50] S_Cassie (~s_cassie@212.183.128.68) joined #highaltitude.
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[10:51] <nommo> I think a CLI client and using SSH and something like 'screen' (*nix) would be good too
[10:52] <nommo> So you can reconnect to the session if it drops out... can't say I've ever mastered screen though!
[10:52] <Robint91> 480km to SDEAN
[10:52] <Robint91> w00t
[10:52] <mfa298> nommo: that's pretty much what I've done but mosh replaces ssh - it works better over dodgy connections
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[10:53] <nommo> mfa298: Cool - I've never heard of mosh - I'll check it out
[10:54] <mfa298> it uses ssh to setup a terminal connection using udp
[10:54] <mfa298> but I don't think there's a windows client for it so you need linux on the client end as well
[10:55] <nommo> Ahh - not a prob - my other laptop runs Xubuntu... I guess there's no Android client either?
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[10:56] <mfa298> not sure, there might be, but I've never liked doing irc on android
[10:56] S_Cassie (~s_cassie@dab-bas1-h-1-2.dab.02.net) joined #highaltitude.
[10:57] <malgar> after your suggestion of not to use a gsm tracker I'm searching infos about 434mhz transmitter.. what power do you usually use?
[10:57] <nommo> Me neither... phones are too fiddly, but I imagine it's still useful if you're chasing
[10:57] <mfa298> malgar: in the UK we only use 10mW as that's all thats allowed legally
[10:58] <malgar> mfa298: what range do you reach with 10mW?
[10:59] <mfa298> malgar: with a good reciever it's generally Line of Sight, which when the balloon is at altitude can be a large distance
[10:59] <Lunar_Lander> btw
[10:59] <Lunar_Lander> T-10 hours for Antares launch at the mid-atlantic regional spaceport, Wallops Island, Virginia
[11:00] <jcoxon> who has the listening station 'Nerdsville; :-)
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[11:00] <malgar> mfa298: interesting.. but the problem here could be due the large amout of mountains and valleys.. maybe gsm could give me a better coverage
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[11:01] <mfa298> malgar: you might have the same issue with GSM plus it won't work once the balloon gets over a few km.
[11:01] <Lunar_Lander> jcoxon, good question
[11:01] <Lunar_Lander> probably a physicist
[11:01] <Lunar_Lander> :)
[11:03] <malgar> mfa298: gsm has a lot of antennas.. if I use 434mhz i could use only my antenna
[11:03] <PE2G> Anyone who knows at what alt GSM usually quits?
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[11:04] <Upu_M0UPU> its not very high
[11:04] <Upu_M0UPU> <3km
[11:04] <daveake> Here it quits at 200m up
[11:04] <Upu_M0UPU> 3G dropped out at
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[11:04] <Upu_M0UPU> what daveake just said
[11:04] obell (56a6239b@gateway/web/freenode/ip.86.166.35.155) joined #highaltitude.
[11:04] <mfa298> malgar: the trick is to get other people involved in tracking as well, with GSM you potentially have to hope you get a signal between 3km and when it lands.
[11:04] <mfa298> once landed there you may not get a gsm signal either.
[11:07] <Robint91> lot's of people are tracking sdean
[11:07] <Robint91> nice
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[11:07] <Lunar_Lander> yeah
[11:07] <Robint91> I have here a nice clean signal , 25dB S/N
[11:07] <Lunar_Lander> the coverage of trackers in england, holland, belgium and france seems to be quite good now
[11:07] <mfa298> I just counted 41 different recievers in the stats (although some people have more than one reciever)
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[11:08] <Robint91> how is the support with balloons with more that one telemetry down link?
[11:09] <mfa298> Robint91: if it's on differnt frequencies you need multiple copies of dl-fldigi and potentially multiple radios
[11:09] <mfa298> although with an SDR and the right software it might only be one physical radio
[11:09] <Robint91> mfa298, they are in the same 3khz bandwitdh
[11:09] <Hix> Seems like this could get to a decent altitude, 4.1m/s @31500
[11:09] <Hix> what balloon is it? 1000g
[11:10] <Upu_M0UPU> its on its predicted burst altitude
[11:10] <Robint91> mfa298, I have now a system running with two times PSK63 and a THOR downlink
[11:10] <Robint91> mfa298, I meant plotting it on the map
[11:11] <fsphil_MI0VIM> haha, THOR
[11:11] <Robint91> THOR > RTTY
[11:11] <Hix> whats prediction Upu_M0UPU ?
[11:11] <Upu_M0UPU> 31500
[11:11] <mfa298> Robint91: I think you'd need two copies of dl-fldigi one recieving each mode
[11:11] <Upu_M0UPU> burst
[11:11] <Hix> ahh got you
[11:11] <daveake> burst
[11:11] <daveake> too slow :)
[11:12] <Lunar_Lander> still climbing here
[11:12] <Robint91> daveake, burst
[11:12] <gonzo__> thought I geard a wobble
[11:12] <fsphil_MI0VIM> launch!
[11:12] <Upu_M0UPU> nah its burst
[11:12] <Lunar_Lander> yea now
[11:12] <daveake> yeah it was the wobble
[11:12] <Upu_M0UPU> lol
[11:12] <Upu_M0UPU> very distinctive
[11:12] <Lunar_Lander> 32127 m
[11:12] <fsphil_MI0VIM> falling fast
[11:12] <fsphil_MI0VIM> it's a lovely signal here
[11:12] <Robint91> mfa298, yeah, but plotting the telemetry on the spacenear site?
[11:12] <daveake> The wobble was in a sentence that had it still going up, Lunar, but it did deffo burst at that point
[11:13] <gonzo__> it was a signal level wobble though, we usual;ly get some FMing too
[11:13] <Robint91> -40m/s
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[11:13] <Hix> whoaaa -51m/s
[11:13] S_Cassie_ (~s_cassie@92.40.253.211.threembb.co.uk) joined #highaltitude.
[11:13] <S_Cassie_> Yep, thanks to all helping us track, the more the merrier!
[11:13] <daveake> No it did shift up in freq
[11:13] <Lunar_Lander> daveake, ah
[11:13] <Lunar_Lander> and like do you hear the wobble or see it in the waterfall?
[11:13] <fsphil_MI0VIM> both
[11:13] <jcoxon> Robint91, they system is quite flexible
[11:13] <Upu_M0UPU> 100mph
[11:13] <daveake> I saw it but yes it's usually easier to hear
[11:13] <jcoxon> so if fldigi can decode a protocol it can work
[11:13] <mfa298> Robint91: I think you'll need someone else for that, but if dl-fldigi can get the data in a similar way to rtty then I think it should work (you'll probably need some payload docs)
[11:13] <Lunar_Lander> it's directly north of M0JCU
[11:14] <Upu_M0UPU> its slowing
[11:14] <fsphil_MI0VIM> there are often false burses, wobbles that sound like a burst but it's just the payload being pushed around by wind
[11:14] <jcoxon> the telem string format needs to be relatively similar to UKHAS standard
[11:14] <Lunar_Lander> and is the wobble like dueueu or so?
[11:14] <cuddykid> people of milton keynes, watch out! :P
[11:14] <Lunar_Lander> (it's hard to write out sounds)
[11:14] <Robint91> jcoxon, mfa298 if I use the test telem string dl-fldigi can decode it
[11:14] <Robint91> doesn't matter what mode
[11:14] <fsphil_MI0VIM> it's quite a distinctive sound
[11:14] <jcoxon> Robint91, exactly
[11:14] <fsphil_MI0VIM> you can often hear it spinning too
[11:15] <Lunar_Lander> yea
[11:15] <Lunar_Lander> you mean like that level crossing yodalarm?
[11:15] <fsphil_MI0VIM> this one doesn't sound too bad
[11:15] <Lunar_Lander> there is nothing else sounding like that
[11:15] <Robint91> jcoxon, mfa298 but I was wondering what the backend does with multiple data streams
[11:15] <jcoxon> one of the reasons why we have done things this way rather than a dedicated rtty decoder
[11:15] <Lunar_Lander> :)
[11:15] <Lunar_Lander> we wanted to see if we can make some sort of dashboard with dials
[11:15] <Lunar_Lander> which shows flight data live
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[11:15] <Lunar_Lander> for some sort of ground station
[11:15] <fsphil_MI0VIM> signal fading
[11:15] <Lunar_Lander> extract the data from dl-fldigi somehow
[11:15] <fsphil_MI0VIM> still decoding
[11:16] <jcoxon> Robint91, well habitat (the backend) can cope with multiple strings from the same payload
[11:16] <mfa298> Robint91: my understanding is that the uploader part of dl-fldigi just looks at the text, so as long as the fldigi decoders can get text from your transmission then it will all work
[11:16] <fsphil_MI0VIM> mfa298: yep
[11:16] <Robint91> nice
[11:16] <jcoxon> and habitat is nicely scripted to be adjustable
[11:16] <G0DJA> On way down?
[11:16] <jcoxon> e.g. hotfixes etc
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[11:16] <fsphil_MI0VIM> G0DJA: aye
[11:17] <Wouter-[pa3weg]> http://www.pa3weg.nl/?id=news
[11:17] <S_Cassie_> Everything still OK, our tracker is down for the moment
[11:17] <S_Cassie_> ?
[11:17] <Lunar_Lander> S_Cassie_, how do you mean?
[11:18] <Lunar_Lander> we can see the balloon descending
[11:18] <fsphil_MI0VIM> still a nice signal
[11:18] <Upu_M0UPU> yes S_Cassie aim for Milton Keynes
[11:18] <S_Cassie_> Our in car charger is down so we are having to save the laptop battery for landing
[11:18] <G0DJA> Does anyone have details of times that the balloons burst this weekend - I should have recordings and wanted to have a listen / see what sounds like at burst point
[11:18] <S_Cassie_> Ok, thanks all
[11:19] <fsphil_MI0VIM> not decoding anymore
[11:19] <Wouter-[pa3weg]> Milton Keynes, it will again land in the back yard of Graham G3VZV...;)
[11:19] <G0DJA> Strange - got decode OK with an extra character before the $ - normally that would kill the checksum...
[11:20] <fsphil_MI0VIM> I got 263 strings, nice
[11:20] <chrisstubbs> G0DJA, if it was before $$ it would be fine
[11:20] <G0DJA> Seeing some wobble now - presume payload swinging under parachute?
[11:21] <Wouter-[pa3weg]> down to S7 now in Delft
[11:21] <G0DJA> chrisstubs I'll check back - other times must have been other decode problems then
[11:21] <henk_> no decoding anymore
[11:22] <Nerdsville> still getting strong signal in Newark-on-Trent
[11:22] <malgar> do you think that is possible to send very low quality-thumbnail images using the 434Mhz? :)
[11:22] <daveake> or better
[11:22] <Wouter-[pa3weg]> the wobble might be causing some CSUM fails
[11:23] <daveake> malgar http://ssdv.habhub.org/
[11:23] <mfa298> malgar: it's possible but you need to run faster than 50bd rtty
[11:23] <Wouter-[pa3weg]> although it is almost perfect copy here and SNR is 27dB
[11:23] <fsphil_MI0VIM> weird little signal hovering around the payload signal: http://i.imgur.com/dCPfwkU.png
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[11:23] <fsphil_MI0VIM> 300 baud is the minimum you'd want for images
[11:23] <Wouter-[pa3weg]> A lot of times it misses the S before DEAN
[11:24] <Wouter-[pa3weg]> is that the case with more people?
[11:24] <Wouter-[pa3weg]> well, not a lot of times anyway, but when a packet fails, it is almost always missing the S
[11:24] Nick change: fsphil_MI0VIM -> fsphil
[11:24] NickSF (5e0b8c68@gateway/web/freenode/ip.94.11.140.104) left irc: Quit: Page closed
[11:24] <jcoxon> check dl-fldigi hasn't got squelch on
[11:24] <jcoxon> bottom right corner
[11:25] <Wouter-[pa3weg]> If it did, that would not matter as the SNR is 27 dB anyway, and signal is S7 on the meter
[11:25] <fsphil> that should really be the default in ahb mode
[11:25] <Wouter-[pa3weg]> but it is off
[11:25] <fsphil> hab*
[11:26] <Wouter-[pa3weg]> now getting lower..
[11:26] <G0DJA> Heading for Newport Pagnell services?
[11:27] <Hix> this is headed pretty much where one of xabens went the other week
[11:27] <nommo> Or the lakes... good job the gopro has its wetsuit on ;)
[11:28] <S_Cassie_> Please no splash landing!
[11:28] <Hix> probably no housing nommo
[11:29] <daveake> I'd go for a wet landing rather than the M1 any day
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[11:29] <Hix> still coming down pretty quick no?
[11:30] <Upu_M0UPU> no its about right for 5m/s
[11:30] <Upu_M0UPU> at ground
[11:30] <Upu_M0UPU> maybe 5.5
[11:30] <Hix> ok
[11:30] <g4fui> LOS in Penrith
[11:30] <Lunar_Lander> oh man
[11:30] <nommo> Hix: I think I read on their blog that they were leaving the housing on
[11:30] <Lunar_Lander> the M1
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[11:30] <Wouter-[pa3weg]> according to the map I should have lost decoding, so a bit of conditions
[11:30] S_Cassie (~s_cassie@212.183.128.244) joined #highaltitude.
[11:30] <Lunar_Lander> WARNING
[11:30] <Lunar_Lander> M1 landing possible
[11:30] <Upu_M0UPU> sssh Lunar_Lander
[11:30] <Wouter-[pa3weg]> still S3 in Delft
[11:30] <Lunar_Lander> WARNING
[11:30] <Hix> nommo ive read it causes bad fogging even if purged
[11:30] <malgar> sorry for the questions but I try to understand: http://spacenear.us/tracker/ I see a lot of antennas! Is this hobby so spread there? Or those antennas are offered by radiomateurs?
[11:31] <Upu_M0UPU> Lunar no need to panic the prediciton is moving about alot
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[11:31] <Lunar_Lander> malgar, every radio tower is like a home station running dl-fldigi
[11:31] <daveake> It's gonna do a Lunar
[11:31] <Lunar_Lander> xD
[11:32] <Upu_M0UPU> if it looks like a M1 landing @ 1000 meter permission to panic until then sit back and chill Winston
[11:32] <Lunar_Lander> yea
[11:32] <Lunar_Lander> when I look at all the little lakes
[11:32] <nommo> Hix: Aye - I imagine there's a lot of condensation going on... I am lookng forward to seeing the video.. hopefully no foggyness
[11:32] <cuddykid> ha
[11:32] <Lunar_Lander> yea it reminds me of our landing
[11:32] <Lunar_Lander> xD
[11:32] <cuddykid> usually drops a bit short of prediction I've found
[11:32] <cuddykid> plus wind data won't be 100% accurate
[11:32] <Lunar_Lander> yea
[11:33] <eroomde> they often swing to the left as they drop too
[11:33] <eroomde> left when looking down the predicted path
[11:33] <Lunar_Lander> probably it'll land at
[11:33] <Lunar_Lander> Haversham
[11:33] <Lunar_Lander> :)
[11:33] <Hix> is that a coriolis thing eroomde :)
[11:33] <Lunar_Lander> or High Street
[11:33] <Lunar_Lander> that is a good name too :)
[11:33] <eroomde> Hix: yes indeed
[11:33] <RocketBoy> yeah - mine was doing that W of M1 , E of M1, W of M1 thing too
[11:33] <Lunar_Lander> yea it already deviates to the left
[11:33] <eroomde> it's because the wind doesn't go directly from high to low pressure at higher altitudes
[11:33] <Lunar_Lander> :)
[11:33] <Lunar_Lander> yea
[11:33] <RocketBoy> most worrying
[11:33] <G0DJA> Getting more bad characters as it gets towards 7000m now
[11:34] <eroomde> but does much more as you get nearer the ground
[11:34] <Hix> so for darkside does it reverse eroomde
[11:34] <eroomde> yup
[11:34] <Lunar_Lander> yea definately deviates from the prediction
[11:34] <Hix> HABplughole
[11:34] <Wouter-[pa3weg]> S1 in Delft
[11:34] <Hix> I love the word coriolis
[11:34] <eroomde> hot air balloonists use altitude to steer by that penomenon too
[11:34] <malgar> mmh I have to study the whole radio thing about this hobby... Give me as much links as you can :P
[11:34] Laurenceb__ (~Laurence@host81-159-189-201.range81-159.btcentralplus.com) joined #highaltitude.
[11:34] <eroomde> malgar: read the wiki. it's a happily little treasuretrove of chaotic info
[11:35] <eroomde> you can get quite lost in it
[11:35] <nommo> There's some great coriolis effect vids on Youtube
[11:35] <eroomde> and never find that page ewver again that you found once
[11:35] <malgar> eroomde: ukhas? I'm in
[11:35] <malgar> :)
[11:35] <eroomde> yep
[11:35] Nick change: Laurenceb__ -> Laurenceb_
[11:35] <RocketBoy> wiki - tis a world of topsey
[11:36] <pws> tried to see the signal (434.651, usb, expecting @ 1kHz), 1 sec. of integration rate, but nope at Kiel, North-DL :(
[11:36] <Wouter-[pa3weg]> aaand its gone here
[11:36] <eroomde> all that said the predicted data should take the coriolist into account
[11:36] <eroomde> but i guess really it's a final few hundred meter thing
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[11:36] <cuddykid> don't we have someone in Milton Keynes? I'm sure I've seen a tracker on the map there before..
[11:36] <nommo> This one with the ball bearing and camera demo: http://www.youtube.com/watch?v=Wda7azMvabE
[11:37] <eroomde> cuddykid: graham VZV
[11:37] <chrisg7ogx> great sigs s/n27dB
[11:37] <Hix> malgar big download bit the entire ARRL antenna handbook here, should be able to dl as a zip https://www.dropbox.com/sh/0mn4gzqpvjku2dh/jfuPz-y7X-
[11:37] <S_Cassie> Traffic!!
[11:37] <cuddykid> ah, would be handy for him to listen in as it comes in
[11:37] <cuddykid> guess he's busy
[11:37] <malgar> S_Cassie: are you chatting from the car?
[11:37] <Wouter-[pa3weg]> Graham is on the road back to home from vienna
[11:37] <S_Cassie> yep
[11:38] <G0DJA> malgar this page is a good starting point http://www.dxfm.com/Content/propagation.htm
[11:38] <Wouter-[pa3weg]> so no cigar there
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[11:38] <malgar> cool
[11:38] <Hix> S_Cassie: when you get to Bicester go straight through onto A4421 then right onto A421
[11:39] <Upu_M0UPU> its moving away from the M1
[11:39] <S_Cassie> ok cheers
[11:39] <Hix> then head for Old Stratford on A422 Ebound
[11:39] <chrisg7ogx> getting some gargle to the sigs now like its underwater still strong
[11:39] <malgar> guys.. I joined this chan in the earliest time when coxon was launching the first ballons.. Then I forget some years about all this.. and now I see something really great.. a true network of enthusiasts
[11:39] <daveake> not underwater just yet
[11:40] <Hix> pretty big now malgar
[11:40] <jcoxon> hehe the good old days malgar
[11:40] <malgar> :)
[11:40] <Hix> I'm going for Ouse Valley Park, hopefully not a tree
[11:40] <Upu_M0UPU> I'd take a tree vs m1
[11:40] <jcoxon> this is my favourite log:
[11:40] <jcoxon> http://habhub.org//zeusbot/logs_highlighted/highaltitude.log.20060105.html
[11:40] <chrisg7ogx> ghost sigs just below
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[11:41] <daveake> hah
[11:41] <S_Cassie> Same, tree over M1 any day!
[11:41] <Wouter-[pa3weg]> got one packet here ;)
[11:42] <eroomde> malgar: i think i remember you!
[11:42] <eroomde> i was edmoore probably then
[11:42] <daveake> You're a relfection of your former self
[11:42] <malgar> S_Cassie: you have to catch the payload still flying.. like a goalkeeper :P
[11:43] <Hix> S_Cassie: Bicester A4421 then right onto A421, skirt around buckingham then left onto A413. Shortly after right on A422. should get you in the area easily
[11:43] <GMT> malgar: that has been done, but with a weather balloon
[11:43] <malgar> ;)
[11:43] <chrisg7ogx> s/n 24dB
[11:43] <malgar> S_Cassie: faster!
[11:44] <chrisg7ogx> s/n18dB
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[11:44] <malgar> mmh I see some lakes..
[11:44] <Hix> s/n 24dB till good this low
[11:44] <G0DJA> Almost gone here - Strange. At 2600m up I'd have thought it would be a better signal
[11:45] <chrisg7ogx> occasional red sn17dB
[11:45] <S_Cassie> malgar Haha! Ambitious!
[11:45] <S_Cassie> Hix - Ok will do!
[11:45] <Hix> this SDR is really very good
[11:45] <Hix> <200m now and still clear
[11:45] <Hix> *2000m
[11:45] <jcoxon> malgar, found it: http://habhub.org/zeusbot/logs_highlighted/highaltitude.log.20060123.html
[11:45] <G0DJA> Elevation 0.9 is the problem I guess
[11:45] <RocketBoy> 23.01.2006 [16:30] malgar (n=malgar@adsl-ull-11-138.47-151.net24.it) joined #highaltitude.
[11:45] <chrisstubbs> Hix your beating me!
[11:45] <G0DJA> I have hills to the south
[11:46] <RocketBoy> 1st appearance
[11:46] <Hix> chrisstubbs: check out how the aerial is positioned http://i.imgur.com/IGANBvN.jpg
[11:46] <Hix> i'm amazed
[11:46] <cuddykid> can't remember when I first joined #highaltitude
[11:46] <chrisstubbs> i saw :P
[11:46] <malgar> jcoxon: lol! I see that my english is bad like 7 years ago :P
[11:46] <Hix> must have LOS up the Lea Valley
[11:46] <chrisg7ogx> red now s/n5dB
[11:47] <Hix> i just cant hear anything as have audio lead from headphones to line in on laptop
[11:47] <G0DJA> Gone here
[11:47] <GMT> I'm 'struggling' with s/n 24db!
[11:47] <Lunar_Lander> Haversham
[11:47] <Lunar_Lander> as I guessed
[11:47] <Lunar_Lander> :)
[11:47] <daveake> riiiiiiiiiiiiight
[11:47] <chrisstubbs> interested to see how my chinese yagi performed compared to the chinese colinear
[11:48] <chrisstubbs> *performs
[11:48] <RocketBoy> 15.08.2009 [12:53] cuddykid (n=adamcudw@89.241.198.17) joined #highaltitude.
[11:48] <chrisg7ogx> last partial here was msg#796
[11:48] <RocketBoy> 1st appearance
[11:48] <cuddykid> ah, nice RocketBoy :)
[11:48] <Hix> lost it @1109m
[11:48] <Hix> well chuffed with that
[11:48] <jcoxon> railway line...
[11:48] <cuddykid> I think I mailed jcoxon first before joining
[11:49] <daveake> losing it here now
[11:49] <GMT> my last good decode at 923m
[11:49] <chrisstubbs> lost at 808
[11:49] <daveake> I remmeber my fiurst post was "how can I add my payload to the tracker?"
[11:49] <cuddykid> picking out that housing estate
[11:49] <Wouter-[pa3weg]> anything else going up today?
[11:49] <cuddykid> incoming!
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[11:49] <Lunar_Lander> coming up on final
[11:50] <iain_> Low flypast over houses! he he
[11:50] <GMT> down?!
[11:50] <cuddykid> boom
[11:50] <malgar> landed?
[11:50] <cuddykid> probably just missed them and landed in field beyond
[11:50] <Hix> M0JCU on here?
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[11:51] <malgar> how much time will you take to go there S_Cassie ?
[11:51] <malgar> 30 mins?
[11:52] <cuddykid> unless the elevation there is over 100m, it should have landed in the field beyond
[11:52] Graham_G3VZV (c12b9ee5@gateway/web/freenode/ip.193.43.158.229) joined #highaltitude.
[11:52] <S_Cassie> yeah 30 mins
[11:52] <S_Cassie> hope so cuddykid
[11:52] <GMT> and there's a convenient bus-stop in the corner of the field
[11:53] <nommo> Looks like a dry landing, away from M1 - phew!
[11:53] <daveake> yes but where's the nearest bacon buttie store?
[11:54] <Wouter-[pa3weg]> Hi Graham
[11:54] <Wouter-[pa3weg]> looks like it is in your back yard ;)
[11:54] <cuddykid> google says approx 75m elevation so I'm guessing it should have cleared
[11:54] <Hix> S_Cassie: pdf emailed http://i.imgur.com/nAjCvaA.png for web version
[11:55] <Hix> looks about right everyone no?
[11:55] <Steffanx>
[11:55] <Graham_G3VZV> PA3WEG yes but I am in vi
[11:55] <Hix> marker indicating predicted spot
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[11:55] <Graham_G3VZV> *Vienna
[11:55] <S_Cassie> Thanks all
[11:55] <Wouter-[pa3weg]> I know :)
[11:55] <Hix> right near a public footpath too, helps
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[11:56] <cuddykid> looks a nice field on street view :)
[11:56] <Wouter-[pa3weg]> @VZV: somewhere out there: http://pa3weg.nl/wordpress/wp-content/uploads/2013/04/HelloStratoDean.jpg
[11:56] <malgar> I miss the predicted landing site before launch. Was it near the real place?
[11:57] <cuddykid> malgar: not really - near luton iirc
[11:57] <junderwood_M0JCU> Hix, I'm here (briefly)
[11:57] <chrisstubbs> Wouter-[pa3weg], hah thats nice!
[11:57] <ON5RZ> elevation at ground level is 147 mtr
[11:57] <Hix> junderwood_M0JCU: got your last postion as you were nearest
[11:58] <junderwood_M0JCU> no useful partials after the last full string
[11:58] <Hix> ok
[11:58] <nommo> malgar: Here's the prediction from yesterday: http://www.stratodean.co.uk/2013/04/tomorrow-is-launch-day.html
[11:59] <junderwood_M0JCU> it will be short of the prediction on the tracker since the ground level there is about 100m
[11:59] <Graham_G3VZV> I recognise the car park!
[11:59] <junderwood_M0JCU> good luck
[11:59] Nick change: junderwood_M0JCU -> junderwood
[12:00] <Hix> landing zone overview map http://i.imgur.com/c5NqKz2.jpg
[12:00] <Wouter-[pa3weg]> Yes, that is THAT car park
[12:00] <Wouter-[pa3weg]> and @cris: this is at work, not at home...unfortunately
[12:00] <Wouter-[pa3weg]> chris that is...
[12:00] <malgar> don't you use openstreetmap? It could be very detailed
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[12:01] <teqsys-dt> your a little way behind
[12:01] <Hix> malgar this is OS maps, similar to IGN in france, not sure italian equiv
[12:01] <teqsys-dt> sdean passing over
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[12:02] Action: daveake checks for time warp
[12:02] <Hix> ha, I've been fishing <600m from the landing spot
[12:02] <Wouter-[pa3weg]> @malgar: https://en.wikipedia.org/wiki/Ordnance_Survey
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[12:02] <malgar> Hix: yes I know
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[12:03] <Hix> I think they are better quality than OSM
[12:03] <Hix> and contours help with relief when searching
[12:03] <Hix> find high spot very quickly
[12:04] <malgar> http://osm.org/go/eu4ponTx--
[12:04] <S_Cassie> We're about half hour away
[12:04] <Hix> S_Cassie: emails two maps hope they are ok
[12:05] <Hix> biggest was 600k
[12:05] <Hix> *emailed
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[12:12] <Hix> according to this the SDR E4000 is a winner http://habitat.habhub.org/stats/
[12:13] <Wouter-[pa3weg]> according to that page, my yagi is a winner too ;)
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[12:13] <Wouter-[pa3weg]> the E4000 is the same tuner as the FUNcube Dongle Pro
[12:14] <Wouter-[pa3weg]> (not plus)
[12:14] <Wouter-[pa3weg]> but Elonics went bust :(
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[12:14] <Hix> Wouter-[pa3weg]: https://www.cosycave.co.uk/product.php?id_product=267
[12:14] <Hix> still stocked
[12:14] <Wouter-[pa3weg]> I know you can get the DVB-T dongles still
[12:14] <Hix> http://i.imgur.com/tnNTTLY.jpg
[12:14] <Wouter-[pa3weg]> but the chips are out
[12:14] <Darkside> get the R80T
[12:15] <Darkside> R820T*
[12:15] <Darkside> thats better than the E4000
[12:15] <Wouter-[pa3weg]> we need the chips for FUNcube Dongle production, that is why there now is the Pro plus
[12:15] <Wouter-[pa3weg]> and yes, got E4000, Fifi 0013 and 820T here
[12:15] Nick change: Upu_M0UPU -> Upu
[12:15] <Darkside> Wouter-[pa3weg]: oh wait, you're the FCD guy?
[12:15] <Darkside> no wait thats a UKer
[12:15] <Wouter-[pa3weg]> I? the FUNcube SATELLITE guy
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[12:15] <Darkside> ahh cool
[12:16] <Darkside> i worked on a paylaod for UKube-1
[12:16] <Wouter-[pa3weg]> howard G6LVB deserves the honour
[12:16] <Darkside> has the damn thing launched yet?
[12:16] <Darkside> >_>
[12:16] <Wouter-[pa3weg]> no, but testing is done now
[12:16] <GMT> I've got an E4000 (kept as a spare) and R820 (in usa now), plus one other which is a 'don't know what'
[12:16] <Wouter-[pa3weg]> final testing that is
[12:16] <Darkside> bout time
[12:16] <Darkside> i did the design for the TOPCAT payload
[12:16] <Wouter-[pa3weg]> we were there last weekend in Glasgow
[12:16] <Wouter-[pa3weg]> for the FUNcube-2 on UKube checkout
[12:16] <Wouter-[pa3weg]> ah cool!
[12:17] <Darkside> i got called over to the UK by my PhD supervisor to work on it
[12:17] <Darkside> was good fun
[12:17] <Wouter-[pa3weg]> we have two satellites now, one is FUNcube-1, which is a 1U and FUNcube-2 on UKube
[12:17] <Darkside> yep
[12:17] <Wouter-[pa3weg]> i actually built the 1U and the payload boards for UKube
[12:17] <Hix> looks like chase wil be there <15 mins
[12:18] <Darkside> Wouter-[pa3weg]: funcube is backup telemetry for UKube, right?
[12:18] <Upu> S_Cassie_ looks like there is access to the field from the end of Brookfield Road
[12:18] <malgar> S_Cassie is almost there :)
[12:18] <Hix> S_Cassie_: get the maps?gmailed em
[12:18] <S_Cassie_> Hix, yes thank you very much
[12:18] <Wouter-[pa3weg]> http://www.youtube.com/watch?v=sEMoLOcGOOw --> integration time lapse with me and Dennis (the mech guy)
[12:18] <Hix> cool
[12:18] <Wouter-[pa3weg]> no, FUNcube-2 is also backup TLM
[12:19] <Wouter-[pa3weg]> but it runs the same mission as FUNcube-1
[12:19] <Upu> S_Cassie Brookfield Road / MK19 7AF
[12:19] <Upu> should be in the fields behind the houses
[12:19] <Darkside> Wouter-[pa3weg]: ok
[12:19] <S_Cassie_> That's great, thanks guys
[12:19] <Darkside> was wondering that
[12:19] <Wouter-[pa3weg]> so it runs educational outreach experiments and a linear transponder for radio amateurs
[12:20] <Wouter-[pa3weg]> so we should have lots of transponders soon
[12:20] <Wouter-[pa3weg]> and stuff to pick up from space
[12:20] <Upu> no access to the fields from the roads off that but at the end of Brookfields is what looks like a hole in the hedge going into the field adjacted to the field it should have landed in. park up there and get the radio on
[12:20] <Darkside> Wouter-[pa3weg]: hehe, i wish i was setup for transponder stuff
[12:20] <Wouter-[pa3weg]> FUNcube-1 should be relatively easy to receive, also for HABers. Software will be made available for that
[12:20] <Darkside> i've only been able to work SO-50 so far
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[12:21] <Hix> OS Grid SP 82000 42978
[12:21] <malgar> craag: I'm reading about this https://www.thecraag.com/CRAAG1_Camera_Launch_26th_November << do you have the video from the 808 camera?
[12:21] <jcoxon> we need to persuade someone to put a ntx2 on a cube sat
[12:21] <jcoxon> and some ukhas standard telem
[12:21] <Darkside> jcoxon: pff
[12:21] <Darkside> RFM22B
[12:21] <Wouter-[pa3weg]> If everyone plays nice, a simple setup should be OK, but like always, if the alligators come....
[12:21] <Upu> god no
[12:21] <S_Cassie_> Hole in the hedge! Fab.
[12:21] <Upu> wouldn't bloody work
[12:21] <jcoxon> well some ukhas standard telem
[12:21] <Upu> LMT2
[12:21] <Darkside> Upu: pff
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[12:22] <Upu> RFM22B's can't handle Europe never mind orbit
[12:22] <Wouter-[pa3weg]> jcoxon: why would you want to do that if it is just as easy to decode BPSK1200
[12:22] <Darkside> pff never had problems here
[12:22] <Upu> try some long distance stuff Darkside :)
[12:22] <Upu> I never had issues still I went floating
[12:22] <Darkside> Upu: heh
[12:22] <Darkside> until*
[12:23] <Wouter-[pa3weg]> if you want that format somewhere, we can have that arranged.... ;)
[12:23] <Darkside> Wouter-[pa3weg]: wouldn't FSK be more power efficient/
[12:23] <jcoxon> Wouter-[pa3weg], cause we have a nice tracking network
[12:23] <Darkside> jcoxon: but that tracing network will need to be made to support doppler
[12:23] <Darkside> which it doesnt do right now
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[12:23] <Hix> S_Cassie_: last exit on roundabout
[12:23] <Hix> ahh
[12:23] <S_Cassie_> Yep!
[12:23] <jcoxon> Darkside, thats true
[12:23] <chrisstubbs> malgar, this is the 808 footage from my flight yesterday: http://www.youtube.com/watch?v=mw1s5OWwK_o
[12:24] <Wouter-[pa3weg]> and apart from that: my first satellite was Delfi-C3, which has a world-wide >400 stations network
[12:24] <Darkside> still, hook in gpredict and it'd be possible
[12:24] <Upu> there is a program which can correct doppler for FCD
[12:24] <Hix> thought i was too late
[12:24] <Darkside> Upu: hamlib + gpredict
[12:24] <Darkside> will do it fine
[12:24] <malgar> chrisstubbs: did you remove the plastic cover?
[12:24] <Upu> See OSCAR news for March
[12:24] <Wouter-[pa3weg]> but nevertheless, there is no reason why HAB stations could not do satellites
[12:24] <Darkside> Wouter-[pa3weg]: BPSK1200 will require a linear amp., right?
[12:25] <Wouter-[pa3weg]> on the output, yes
[12:25] <chrisstubbs> malgar,nope!
[12:25] <Darkside> i guess you already have one for the transponder
[12:25] <Darkside> so it doesnt matter
[12:25] <Wouter-[pa3weg]> but a linear transponder already does
[12:25] <Darkside> yeah
[12:25] <Wouter-[pa3weg]> and it is spectrally efficient
[12:25] <Darkside> exactly
[12:25] <Darkside> yep
[12:25] <Wouter-[pa3weg]> only downside is efficiency
[12:25] <Darkside> what about GFSK?
[12:25] <Wouter-[pa3weg]> but the next one will be QPSK
[12:25] <Wouter-[pa3weg]> could do, but just not as efficient
[12:25] <Wouter-[pa3weg]> spectrum is a big issue
[12:25] <Darkside> phase shaped PSK is something i'm looking at
[12:25] <Darkside> yeah
[12:26] <Wouter-[pa3weg]> especially at VHF
[12:26] <Darkside> phase shaped PSK isnt the most spectrally efficient
[12:26] <malgar> chrisstubbs: nice video
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[12:26] <Darkside> Wouter-[pa3weg]: i'm experimenting with phase-shaped PSK for HF comms
[12:26] <Darkside> phase shaped so i don't need a linear amp
[12:27] <malgar> startodean car is almost there!
[12:27] <Wouter-[pa3weg]> Offset QPSK is near constant envelope
[12:27] <Wouter-[pa3weg]> and has twice the data for the same baudrate
[12:27] <Darkside> yeah heard about offset QPSK
[12:27] <Darkside> havent looked much at it
[12:27] <Wouter-[pa3weg]> so thats my next attempt
[12:27] <chrisstubbs> malgar, ties up with: http://www.youtube.com/watch?v=blFBZQ4j-r8
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[12:27] <Hix> nearly there
[12:28] <chrisstubbs> S_Cassie_, do you have your SDR with you, or set up at home?
[12:28] <Wouter-[pa3weg]> anyway, there are some benefits for FSK alikes
[12:28] <Wouter-[pa3weg]> but the spectral efficiency of QPSK might beat that
[12:28] <Wouter-[pa3weg]> and all the big guys are using QPSK
[12:28] <S_Cassie_> cri
[12:28] <Wouter-[pa3weg]> so we can benefir from the big setups
[12:28] <S_Cassie_> chrisstubbs it's here with us
[12:28] <Darkside> Wouter-[pa3weg]: a low bitrate beacon would be nice to have
[12:29] <chrisstubbs> perfect, should hear it any minuite then
[12:29] <Darkside> something that you can pickup without needing any special antenna
[12:29] <Upu> radio on S_Cassie_ :)
[12:29] <S_Cassie_> Hopefully, the backup tracker isn't working yet±
[12:29] <Darkside> i mean, i've picked up the FITSAT CW beacon with a whip
[12:29] <Darkside> but thats 100mW of CW
[12:29] <Wouter-[pa3weg]> FUNcube-1 is designed for using the FUNcube dongle and handheld antennas
[12:29] <chrisstubbs> good ol' reliable TK102
[12:29] <S_Cassie_> We can hear it
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[12:29] <Hix> excellent new!!!
[12:29] <Hix> *news
[12:29] <Darkside> Wouter-[pa3weg]: yeah
[12:29] <Wouter-[pa3weg]> Delfi-C3 is 100mW BPSK1200
[12:29] <nommo> Yay!
[12:29] <Wouter-[pa3weg]> and you can pick that up on a turnstile
[12:30] <S_Cassie_> We should be updating
[12:30] <Upu> not yet
[12:30] <Hix> nope
[12:30] <Darkside> Wouter-[pa3weg]: mm must make a turnstileat some point
[12:30] <Darkside> havent bothered yet
[12:30] <Upu> stay on that road actually S_Cassie_
[12:30] <Darkside> need one for 2m and one for 70cm
[12:30] <Hix> S_Cassie_: got lat lon?
[12:30] <Wouter-[pa3weg]> a small yagi is also nice, or eggbeater
[12:30] <Wouter-[pa3weg]> plenty of options
[12:30] <Hix> can then hone in on map
[12:30] <Upu> over 2 round abouts
[12:30] <malgar> great experience chrisstubbs ! is this your first balloon?
[12:31] <Wouter-[pa3weg]> but the FUNcube design team is meeting next week about that
[12:31] <Upu> then should be in the field on your left
[12:31] <daveake> There you go
[12:31] <Darkside> Wouter-[pa3weg]: i've been using a dual-band arrow to work SO-50
[12:31] <Upu> bingo
[12:31] <Wouter-[pa3weg]> same here
[12:31] <Darkside> Wouter-[pa3weg]: a cheap base antenna kit would be nice
[12:31] <Upu> yah stay on that road S_Cassie_
[12:31] <Wouter-[pa3weg]> I have two arrows
[12:31] <daveake> Always nice to see that
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[12:31] <Darkside> Wouter-[pa3weg]: like, a kit with pre-cut phasing harness
[12:31] <S_Cassie_> 52.07911, -0.80609
[12:31] <chrisstubbs> Look at that not even in a tree!
[12:31] <Darkside> Wouter-[pa3weg]: because the phasing harness is the hardest bit to get right
[12:31] <daveake> good result
[12:32] <Wouter-[pa3weg]> yes, and for FUNcube it also needs to be affordable and safe to use for school kids
[12:32] <S_Cassie_> Leaving car now
[12:32] <Upu> yeah you can park at the end of that road, then go up the adjacent field
[12:32] <Upu> cool :)
[12:32] <chrisstubbs> good luck!
[12:32] <Darkside> Wouter-[pa3weg]: a simple cross dipole would be doable, right?
[12:32] <S_Cassie_> Leaving car, talk later
[12:32] Nick change: Robin_ -> Robint91
[12:32] <Wouter-[pa3weg]> I´ll shut up for a minute while Cassie retrieves the payload!
[12:32] <daveake> I'd have gone further and walked up the edge of the field
[12:32] <Darkside> Wouter-[pa3weg]: how about something where you can 3d print the mount for the antenna
[12:32] <S_Cassie_> Will let you know :)
[12:33] <Upu> chase car app on phone so we can follow you :)
[12:33] <Darkside> Wouter-[pa3weg]: provide the elements, and the coax bits, the kids print the mount with the 3d printer at their school (more common now)
[12:33] <Hix> there is a public footpath in the field about 300m up there and should be on your right S_Cassie_
[12:33] <Darkside> Wouter-[pa3weg]: and then they just put it on a tripod outside or something
[12:34] <Wouter-[pa3weg]> that is one of the options we indeed looked at. The other one is providing a kit that we buy in high volume to keep the price down
[12:34] <Darkside> cool
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[12:34] <Hix> new location http://i.imgur.com/kU7d7X3.png
[12:34] <Wouter-[pa3weg]> but we are meeting next weekend @ Martlesham Microwave Round Table
[12:34] <Wouter-[pa3weg]> so hopefully we can get some inputs as well
[12:34] <Wouter-[pa3weg]> and we asked on the AMSAT-BB
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[12:34] <Wouter-[pa3weg]> getting losts of ideas
[12:35] <Darkside> Wouter-[pa3weg]: sounds good!
[12:35] <chrisstubbs> Hix is that the right side of the field?
[12:35] <Wouter-[pa3weg]> I personally like eggbeaters, since they have nothing that pokes in your eyes
[12:35] <chrisstubbs> right side of the treeline rather
[12:35] <Wouter-[pa3weg]> imagine the kids waving with yagi´s...
[12:35] <Upu> lol
[12:35] <Wouter-[pa3weg]> so it depends on the guidance at the school
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[12:36] <Wouter-[pa3weg]> anyway....getting ready to move outside on the parking deck to play on HF radio
[12:36] <Wouter-[pa3weg]> and waiting for the good news from Cassie
[12:36] <Hix> my bad lat lon typo new position http://i.imgur.com/WZjNa3i.png
[12:37] <Wouter-[pa3weg]> oh: we promise to update the FUNcube website soon ;)
[12:37] <Hix> left of part / treeline
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[12:42] <GMT> I love the way the car moves along the pathway
[12:42] <malgar> :P
[12:43] <Hix> nearly on it
[12:43] <Hix> reversing down a public footpath tut tut ;p
[12:43] <malgar> 4.6 km/h
[12:44] <malgar> :D
[12:44] <GMT> the speed to 11 decimal places is a bit extreme
[12:44] <chrisstubbs> looks like they see it
[12:44] <Hix> I'd say they're with it
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[12:45] <Hix> maybe a spot of hedge wrestling first
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[12:45] <GMT> if we had a BATC feed we could have the yakkety-sax music again
[12:46] <Hix> suspense
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[12:46] <Hix> bull in the field? :)
[12:46] <Wouter-[pa3weg]> with a gopro on his horns :P
[12:47] <chrisstubbs> there were horses in the NSE field, that must have confused them
[12:47] <Hix> heh
[12:47] <Hix> or a red chute
[12:47] <chrisstubbs> haha
[12:48] <Hix> there's a horse in a field near me that bites your arse if you walk through it with earphones on
[12:48] <Hix> hurts like hell, alarming first time it happened in the dark walking home from the pub litening to tunes
[12:48] <GMT> feed a horse with apples every time you see him ... one day, give him a lemon
[12:48] <Hix> why the lonmg face
[12:48] <nommo> Hix: I got bit on the arse climbing a gate - took me about 25 years to get over that (being bitten - not the gate)
[12:49] <Hix> haha
[12:49] <Hix> change walking partners after that?
[12:50] <nommo> lol - I was out with the family - they thought it was hilarious
[12:50] <gonzo__> that's justice for walking around with bits of white cable plugged into your brain
[12:50] <Hix> hmm, maybe its up the tree with the shadow Ne of the car
[12:50] <Hix> gonzo__: they were black ;p
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[12:50] <gonzo__> that's ok. The white ones are used for mind control
[12:50] <Wouter-[pa3weg]> they have it
[12:50] <Hix> shure - pretty much block all outside noise including horsefoolery
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[12:50] <Wouter-[pa3weg]> https://twitter.com/stratodean
[12:51] <Wouter-[pa3weg]> https://twitter.com/stratodean/status/325954238838616067/photo/1
[12:51] <nommo> Yay!
[12:51] <x-f> great!
[12:51] <nommo> Happy Cassie
[12:51] <gonzo__> white cables to the brain usually goes with a gormless look and supprise when someone runns over them on their bicycle
[12:51] <Wouter-[pa3weg]> Gongrats to Mark & Cassie
[12:51] <Hix> hurrah
[12:51] <Hix> nice one guys
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[12:53] <Lunar_Lander> awesome
[12:53] <Lunar_Lander> at least no river
[12:53] <Lunar_Lander> xD
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[12:54] <Morseman> Glad to hear recovered OK
[12:54] <Wouter-[pa3weg]> now lets wait for the footage!
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[12:56] <Lunar_Lander> S_Cassie, WELL DONE
[12:56] <S_Cassie> Hi guys, payload recovered. Nice and easy in a hedge and a field
[12:56] <chrisstubbs> Congrats S_Cassie
[12:57] <S_Cassie> Thank you all very much for tracking us
[12:57] <Hix> Icom IC-R10 ending on fleabay this eve £16.00 atm http://goo.gl/fS4vo ends 20:01:04
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[12:57] <Morseman> Nice flight S-Cassie - strong and mostly stable sigs. What thermal insulation do you use for the NTX2 ??
[12:57] <Hix> congrats S_Cassie great flight and signal
[12:58] <Morseman> Hix I bet there's a load of reserve bids in background
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[12:58] <Hix> there are 7 bids, you never know with fleabay
[12:59] <Hix> thought I'd share it just in case, Icom is pretty good i think
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[13:00] <S_Cassie_> Morseman, just built up layers and compartments from polystyrene within the box.
[13:00] <Lunar_Lander> it's awesome
[13:00] <Lunar_Lander> I am jumping around at the moment
[13:00] <Lunar_Lander> xD
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[13:00] <S_Cassie_> Thanks all for your help, gonna get back home now and look through the footage. Will share on the blog!
[13:00] <S_Cassie_> Cheers again, bye!
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[13:03] <WILLdude> I have the line of sight blues.
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[13:04] <WILLdude> :(
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[13:08] <Morseman> Thanks S_Cassie will have to try the same
[13:08] <WILLdude> Urgh.
[13:08] <WILLdude> I really don't know what to do.
[13:10] <nommo> Hix: Dongle ordered
[13:11] <gonzo__> an easy recovery for the sdean guys?
[13:12] <RocketBoy> and gals
[13:12] <gonzo__> uni team ?
[13:12] Nick change: MoALTz_ -> MoALTz
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[13:15] <nommo> A legendary HAB couple team I believe :)
[13:15] <WILLdude> Upu: How is it that you keep connected to irc?
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[13:15] <gonzo__> nice one
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[13:17] <WILLdude> I'm really confused about antennae now.
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[13:18] <gonzo__> I poike their comentary on the launch practice, with the cocktail brolly
[13:19] <gonzo__> like
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[13:41] <Morseman> What's the problem WILLdude?
[13:45] <WILLdude> Line of sight.
[13:45] <Morseman> In what way?
[13:48] <Upu> Stratodean recovered ?
[13:48] <Morseman> Yes Upu
[13:48] <Upu> awesome
[13:48] <Morseman> In a field
[13:49] <Morseman> No trees about :)
[13:49] <WILLdude> Morseman: I can never seem to receive much from anything.
[13:49] <Lunar_Lander> and no rivers
[13:49] <Morseman> What anttena and where is it?
[13:49] <WILLdude> Quarter wave.
[13:49] <WILLdude> Err.
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[13:49] <Morseman> Tell me it's not inside...
[13:50] <Morseman> Basically, inside (even in a loft) is poor
[13:50] <Morseman> and the signals we are listening for are quite low
[13:50] <Morseman> so any attenuation is not good
[13:51] <WILLdude> The location is outside of a window.
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[13:52] <mfa298> WILLdude: when its outside the window do you have the single wire (the driven element) pointing up and the radial pointing downwards ?
[13:52] <WILLdude> Morseman: It's at around -1.170695° -1.170695
[13:52] <WILLdude> *
[13:52] <WILLdude> 51.256276°
[13:52] <WILLdude> -1.170695°
[13:53] <WILLdude> mfa298: I can;t have the driven element upwards if I am dangling it out a window, so no.
[13:54] <Morseman> My advice is get good quality coax (*NOT* the CB stuff - at least UR67 - The thicker stuff) and get the antenna as high as you can - at least on the chimney if you have one
[13:54] <mfa298> WILLdude: having the driven element pointing upwards will make a big difference
[13:54] <Robint91> w00t http://i.imgur.com/IZhsBkX.png https://gist.github.com/anonymous/5429655
[13:55] <Robint91> I have two async PSK31/PSK63 data streams running on my microcontroller
[13:55] <WILLdude> mfa298: That's an idea.
[13:55] <Morseman> If it's a quaterwave groundplane (the vertical with a number of horizontal ones round the base) then the vertical one needs to point upwards - ideally
[13:55] <Robint91> It pushes it to the DAC with the DMA controller
[13:55] <WILLdude> mfa298: But I can't do that.
[13:55] <Robint91> those PSK31 streams a full configurable
[13:56] <WILLdude> I can't get it upright if it's out of a window.
[13:56] <Morseman> You might want to try a dipole instead (one quaterwave up the other down) as it is easier to mount
[13:56] <mfa298> WILLdude: if you can get hold of a piece of wooden pole or pastic tube (nothing metal) and tape it to that you might have better luck
[13:56] <mattbrejza> do you have a rf front end to use with that Robint91 or just AF for now?
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[13:57] <Robint91> mattbrejza, AF, but already in IQ format for the RFMD2081
[13:57] <mattbrejza> ah :)
[13:57] <chrisstubbs> WILLdude, think plank of wood and duct tape
[13:58] <WILLdude> That'd be awkward.
[13:58] <WILLdude> I might as well just get a colinear.
[13:58] <WILLdude> Or a yagi.
[13:58] <chrisstubbs> Yagis seem to work well, hix had great success with his out the windoe
[13:58] <chrisstubbs> window
[13:58] <Morseman> See http://www.idc-online.com/technical_references/pdfs/electronic_engineering/Antennas_and_Propagation.pdf but mount it 90 degrees (vertical) rather than horizontal as shown
[13:58] <mfa298> WILLdude: if you think of a ring donut (or polo mint) sat on the driven element (so the element goes through the hole) where the donut goes is where the antenna recieves it's signal best (although if that doesn't make sense ignore it)
[13:58] <chrisstubbs> the colinear would really need a pole i expect
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[13:59] <WILLdude> Hmm.
[13:59] <mfa298> WILLdude: unless you can mount a colinear or yagi properly they might not work any better than what you currently have
[13:59] <WILLdude> I wouldn't get line of sight any better with a yagi I don't think.
[14:00] <WILLdude> And I can't exactly afford a yagi, or installation of one.
[14:01] <Morseman> I'll not start the argument about whether the inner of the coax goes to the upper wire - I makes no difference as the polarization changes at the RF frequency (in this case 70 million times a second)
[14:01] <mfa298> if your parent would let you use a drill, soldering iron and small saw then it's fairly cheap and easy to make a dipole that works
[14:01] <GW8RAK> If you are hanging an aerial out the window, how about a half wave dipole which can be suspended from the top?
[14:03] <Morseman> Sorry! 432 million times a second (I was looking at a design for a 4M antenna when I typed that!)
[14:03] <Morseman> or even 434 million times... I give up now and go swimming...
[14:04] <fsphil> scary how fast that is :) physics is amazing
[14:04] <WILLdude> Hmm.
[14:04] <mfa298> WILLdude: if you could install something on the side of the house you want a colinear (or other vertical) rather than a yagi. Yagi's are directional so you need to be able to turn it to where the payload is. A colinear is omni directional like the one you have already
[14:05] <nommo> must do stuff
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[14:06] <WILLdude> mfa298: I maybe possibly might be allowed to consider that.
[14:06] <mfa298> also you might need to be careful of the antenna you've got with rain as it may not be that waterproof (getting water into coax is bad)
[14:06] <WILLdude> I'll ask Upu when he's around.
[14:06] <WILLdude> I need to come up with a solution that won't annoy neighbours and doesn't require planning permission.
[14:07] <fsphil> hmm I'd need to waterproof the coax going to my vertical
[14:07] <WILLdude> Colinears look expensive.
[14:07] <Morseman> WILLdude You are near Canterbury?
[14:08] <mfa298> it's possible to make things as well although for making something I'd probably go with a dipole first.
[14:08] <Robint91> yeah 3 data streams
[14:08] <Robint91> http://i.imgur.com/KtifHRZ.png
[14:08] <Upu> hey here
[14:08] <WILLdude> Morseman: Nope not at all.
[14:09] <Upu> WILLdude
[14:09] <WILLdude> Yep?
[14:09] <Morseman> I put east in and you are west :-)
[14:09] <Upu> join local radio club
[14:09] <WILLdude> Buy one off them???
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[14:09] <Upu> see if they will let you use their kit on launch day
[14:09] <Upu> if you get into it parents may have no choice :)
[14:09] <WILLdude> Launch Day?!
[14:09] <Upu> yeah launch day
[14:09] <WILLdude> Mounting might be difficult.
[14:09] <Upu> i.e today
[14:10] <Upu> yesterday
[14:10] <Morseman> OK - Basingstoke :-)
[14:10] <WILLdude> The most average town in the world.
[14:11] <mfa298> people at clubs often have bits of kit they'll lend out, you might also find there's someone who can help you make something or talk to your parents about what could be put on your house.
[14:11] <WILLdude> Upu: That's an idea.
[14:11] <WILLdude> Upu: Wouldn't I need to learn ham radio stuff first?
[14:11] <Upu> you could end up doing what Daveake does and putting up an antenna on launch day
[14:12] <Upu> thats what the club is for WILLdude
[14:12] <Upu> get your foundation exam done
[14:12] <Upu> you're set
[14:12] <chrisstubbs> today is perfect sandalls and socks weather
[14:12] <mfa298> WILLdude: most clubs are happy to help if you're interested in radio. When I joined my first club there were several people that were just interested in listening to shortwave radio
[14:13] <Babs> WILLdude: foundation exam is a cinch , and you will meet lots of helpful people there
[14:13] <Upu> tbd WILLdude you're a rarity in HAM radio, young and interested
[14:13] <Upu> only way you could be rarer is to be female
[14:14] <WILLdude> tbd?
[14:14] <Babs> Upu: When I was doing my course, there was one guy who had taped a girl doing his cq call, as he reckoned it at least doubled his chances of getting a response in contests
[14:14] <Upu> too be honest
[14:14] <Upu> lol Babs
[14:14] <Babs> I wasn't sure whether that was a positive or a negative in terms of ham radio
[14:14] <Babs> Positive: ingenuity
[14:15] <Babs> Negative: says a lot about the ham radio sexes balance
[14:15] <Upu> so any images from Stratodean ?
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[14:17] <griffonbot> @AnthonyStirk: Congratulations to @stratodean for a successful launch and recovery and not having to get @Daniel_Richman to hotfix anything yay #ukhas [http://twitter.com/AnthonyStirk/status/325976477428486145]
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[14:18] <DanielRichman> ;-)
[14:18] <Hix> is there a way to see what I've uploaded to the tracker from dl-fldigi?
[14:18] <fsphil> disappointed? :)
[14:18] <RocketBoy> yeah - thanks for the support with the queens guys testerday
[14:18] <RocketBoy> yeatserday
[14:18] <Hix> I've found graphs for flights but was looking for the actual data
[14:20] <RocketBoy> yeah - its on the habhub habittat
[14:20] <RocketBoy> page
[14:20] <Upu> http://habitat.habhub.org/stats/
[14:20] <Upu> did they recover RocketBoy ?
[14:20] <RocketBoy> nope
[14:20] <Upu> ouch
[14:21] <number10> what was on the payload - anything special?
[14:21] <RocketBoy> for some reason they decided to both use the same frequency
[14:21] <RocketBoy> and decided they wanted to fly one afer the other
[14:22] <RocketBoy> rather than change the modules or tweak frequencies
[14:22] <Upu> could have tweaked them
[14:22] <RocketBoy> the 2nd flight took so long to prep that the 1st flight had run out of batteries before they got there
[14:22] <Upu> oh that was dumb
[14:23] <Babs> How do you tweak them upu?
[14:23] <Upu> you can adjust the bias point if you're using the 3 resistors / single pin technique
[14:23] <Upu> or peel the sticker off and adjust the pots
[14:23] <RocketBoy> and the 2nd flight had gaffed so long that the batteries didn't last the flight
[14:23] <RocketBoy> faffed
[14:24] <Upu> Daveake ran 2 x 075 modules on PIE5
[14:24] <Upu> crazy...
[14:24] <RocketBoy> they were using PP3s
[14:24] <Babs> How do you adjust the bias point - ie change the resistance of the resistors?
[14:24] <Upu> what ?
[14:24] <Upu> jeezzz
[14:24] <fsphil> :O
[14:24] <RocketBoy> I didn't have any spare batts with me
[14:24] <Upu> yeah 4k7 4k7 splits voltage 50:50
[14:25] <Upu> change those values you move the frequency
[14:25] <Upu> People seem to think PP3's have more capacity than AA's for some reason
[14:25] <Upu> more volts I guess
[14:25] <Babs> How much clear of the next frequency one do you need?
[14:25] <Upu> well check they both drift the same way and you should be ok
[14:25] <Hix> founf thre stats, but was after raw data I'd uploaded is that accessible?
[14:26] <chrisstubbs> Hix you mean download all raw strings uploaded by your callsign?
[14:26] <Babs> Ok thanks
[14:26] <Hix> yup
[14:26] <chrisstubbs> not sure that can be done with the current system :(
[14:27] <Hix> arse :)
[14:27] <number10> RocketBoy: did they loose any expensive stuff or was it just tracking boards?
[14:27] <RocketBoy> just tracking boards I think
[14:28] <cuddykid> hm, pyserial seems to be sending the ascii value (int) of chars instead of a string
[14:28] <number10> thats not so bad then
[14:28] <Babs> chrisstubbs: - on the same note, can you download all of the tracking coordinates for a flight in a single file to play around with th
[14:28] <malgar> is dl-fldigi set up for spacenear.us project or could it be used for other things?
[14:28] <Hix> should have saved a log from dl-fldigi really #testingfail
[14:28] <Babs> *them
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[14:29] <cuddykid> malgar: well, the code is available on github so I guess it wouldn't be difficult to tweak where it sends data
[14:29] <malgar> cuddykid: ok
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[14:29] <fsphil> cuddykid: chr()
[14:30] <cuddykid> fsphil: that converts a char into ascii value right? I need it to stop doing that :P
[14:30] <RocketBoy> the simplest way to use fldigit (or dl-fldigi) for other things is to listen on the socket it publishes
[14:31] <RocketBoy> in fact thats how we used to use it orriginally
[14:31] <fsphil> cuddykid: that converts a number into a character
[14:31] <mfa298> Hix, Babs: you can download all the telemetry data from habitat but I dont think you can just get the bits you uploaded
[14:31] <cuddykid> fsphil: i.e. when I go (on pi): ser.write('Test String') and listen on the arduino it's just sending over ints
[14:31] <cuddykid> fsphil: ah, I see
[14:31] <Babs> Mfa298 - that's all I want I think - thanks
[14:31] <Hix> mfa298: no probs, I was trying to recover where i pcked up and lost SDEAN
[14:32] <fsphil> cuddykid: characters are numbers too (char is the same as int8_t)
[14:32] <mfa298> Babs: http://habitat.habhub.org/ept/
[14:32] <cuddykid> fsphil: yep - was just wondering why it wasn't appearing as the character though
[14:32] <RocketBoy> on most processors yes
[14:32] <fsphil> what's the code on the arduino doing?
[14:33] <Babs> Mfa298 - sweet. I love a bit of statistics
[14:33] <cuddykid> fsphil: as in, if I was to do arduino to arduino serial comms it would come up as chars
[14:33] <fsphil> true, most. some arm systems char is uint8_t
[14:33] <cuddykid> fsphil: just a "Serial.println(Serial.read());
[14:33] <fsphil> println is probably trying to be smart
[14:34] <cuddykid> ah yes, let me change that and see :)
[14:34] <RocketBoy> in general in C its best not to assume anything about the types - and find out what they actually are
[14:34] <RocketBoy> e.g. recent in problem
[14:34] <RocketBoy> int
[14:34] <fsphil> cuddykid: try serial.write() instead
[14:35] <fsphil> the char signed/unsigned difference caught me out ages ago
[14:35] <fsphil> I've become a big fan of stdint.h since then :)
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[14:41] <cuddykid> fsphil: casting to char worked
[14:41] <griffonbot> @stratodean: Thanks to all at #ukhas for helping us with today's launch (with both the preparation and tracking) [http://twitter.com/stratodean/status/325982593508061187]
[14:43] <malgar> next launch data?
[14:43] <malgar> ops
[14:43] <malgar> date
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[14:45] <chrisstubbs> Im going to try and go again next weekend with a better camera
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[14:50] <mattbrejza> hmm the airport fire engine just went past with its blues flsahing
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[14:50] <mattbrejza> not usually a good sign
[14:50] <malgar> mattbrejza: a balloon inside the engine?
[14:50] <mattbrejza> na nothing to do with us
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[15:19] <chrisstubbs> trying to review footage of a camera spinning at about 60rpm to find someones house is difficult
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[15:22] <fsphil> just a bit
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[15:27] <chrisstubbs> managed to spot out the tower for the local repeater though :)
[15:34] <craag> malgar: Hi
[15:34] <malgar> craag: hi
[15:34] <craag> No I haven't got the footage, as the camera was still in the tree (last checked in february).
[15:34] <craag> :(
[15:35] <malgar> craag: what about a long pole?
[15:35] <craag> It's ~16m up, I took along my 10m pole but it was nowhere near.
[15:35] <malgar> 16m, not bad
[15:35] <craag> I'll be checking on it again soon, hopefully it's dropped by it's own accord.
[15:35] <malgar> cut the tree
[15:35] <malgar> :P
[15:36] <craag> Yeah, I'll talk to the estate if it's still up there.
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[15:37] <malgar> anyway.. launching from here could be difficult for the large amount of forest with high trees
[15:37] <craag> where are you located?
[15:37] <malgar> italy, on alps
[15:37] <craag> oh wow
[15:37] <craag> yeah... that may indeed be a challenge!
[15:38] <malgar> I'll use a self destroying cable (bio?) and a ehrm.. treedynamic shape
[15:39] <craag> hehe
[15:39] <pws> Any launches planned next weeks???
[15:39] <chrisstubbs> needs a built in secondary cutdown for tree removal
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[15:39] <craag> Really you want to get it down on the day, so a biodegradable string isn't great.
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[15:40] <chrisstubbs> or just dangle a running chainsaw off the end of the payload train
[15:40] <eroomde> a chainsaw is a cutdown for tree removal
[15:40] <eroomde> too slow
[15:40] <chrisstubbs> thats a good experiment
[15:40] <chrisstubbs> would the engine cut out at high altitude?
[15:40] <malgar> craag: could you imagine a recovery attempt here? http://www.funghiitaliani.it/uploads/monthly_02_2010/post-6661-1266954160.jpg :P
[15:41] <craag> malgar: Beats my 'forest' by a long way!
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[15:49] <chrisstubbs> Upu, could you take a look at some post flight data quickly?
[15:49] <Upu> sure ?
[15:50] <chrisstubbs> you may have noticed on spacenear.us the flight path for NSE went to 0,0
[15:50] <Upu> yes I did notice
[15:50] <chrisstubbs> http://chris-stubbs.co.uk/hab/nse.xlsx
[15:51] <chrisstubbs> row 427
[15:51] <chrisstubbs> not quite 0,0
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[15:51] <chrisstubbs> and the gps lost satelites quite a few times, may have been dreaded softwareserial causing that though
[15:52] <Upu> thats odd
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[15:52] <chrisstubbs> i know, cant imagine why that happened
[15:52] <Upu> oh hang on
[15:52] <Upu> $$NSE,584,082436, 0.023000,00.018000,7104,10,59,1,10*41A4
[15:53] <Upu> I suspect software serial was causing alot of your issues
[15:53] <Upu> as it kept repeating the same location
[15:54] <chrisstubbs> Yeah if tinygps didnt get any updates (becuase of serial failuire), it would fall back to the last know coords and set sats = 0
[15:55] <chrisstubbs> think SS could have caused that strange coordinate then?
[15:55] <Upu> its unlikely to have come from the GPS
[15:55] <chrisstubbs> yeah, plus the altitude stayed the same
[15:55] <Upu> yep
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[15:56] <Upu> hardware serial next time
[15:56] <Upu> and some pre 10am testing
[15:56] <eroomde> take it for a drive
[15:56] <eroomde> ideally across the meridian if you can
[15:56] <chrisstubbs> Yeah think we have learned a lot from this
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[15:56] <chrisstubbs> i simulated a meridian cross with false data and it worked ok
[15:57] <eroomde> cambridge lends itself to hab testing in that you can loop between 2 junctions on the A-road out by elsworth in which you are crossing the meridian
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[16:42] <chrisstubbs> Upu do you do anything to reinforce the antenna on pava?
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[17:34] <Upu> no chrisstubbs
[17:34] <Upu> just careful with it
[17:35] <Upu> https://twitter.com/stratodean/status/325954238838616067/photo/1
[17:35] <chrisstubbs> Still thinking about why the signal was so bad on cheapo. Not sure when the radials got bent
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[17:36] <chrisstubbs> "and not having to get @Daniel_Richman to hotfix anything yay" lol
[17:36] <Upu> :)
[17:36] <fsphil> straws work well for me
[17:37] <fsphil> or tape the radials to the box if it's big enough
[17:37] <Upu> oh yeah always straws on larger payloads
[17:38] <Upu> in fact apart from the super pico ones I put them on as well
[17:38] <chrisstubbs> they dont exactly weigh much
[17:38] <chrisstubbs> stupid aaa battery holder was 10g
[17:38] <chrisstubbs> should have just soldered them
[17:39] <Upu> oh yeah solder them
[17:39] <fsphil> I soldered the batteries in storm, actually turned out really well
[17:39] <fsphil> I expected it to be difficult
[17:42] <Upu> nah
[17:42] <Upu> just scratch the tops and use flux
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[17:42] <fsphil> yea
[17:42] <fsphil> though I probably didn't scratch it enough
[17:42] <fsphil> I need to get some sandpaper
[17:43] <daveake> I just use the nearest sharp object ... e.g. screwdriver
[17:43] <fsphil> hehe, I used my house key
[17:43] <Upu> fibre glass pencil
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[17:47] <chrisstubbs> judging by the orientation of the payload in relation to the line when it landed, i dont think the radials were bent like that on landing: http://bit.ly/15w2BWH
[17:47] <chrisstubbs> opinions?
[17:47] <Upu> no idea
[17:47] <Upu> hard to tell
[17:47] <chrisstubbs> but then again the top one stayed upright, so it could have been dragged on its back
[17:47] <chrisstubbs> i know :/
[17:47] <chrisstubbs> are there any common electronics problems that could cause a weak signal like that?
[17:48] <fsphil> any connectors?
[17:48] Action: daveake hides
[17:48] <fsphil> SMA comes in two types, the right one and the wrong one
[17:48] <fsphil> if you mix them that can cause problems
[17:48] Action: daveake cringes
[17:48] <chrisstubbs> nope soldered stright on: http://bit.ly/15w38bj
[17:48] <chrisstubbs> lol daveake
[17:49] <fsphil> oh cat5
[17:49] <chrisstubbs> phone cable
[17:49] <fsphil> my last cat5 antenna failed too
[17:49] <craag> Wire doesn't really look stiff enough
[17:49] <chrisstubbs> inspired by upus cat5 antenna
[17:49] <daveake> I use solid core wire with pink insulation
[17:49] <daveake> The pink helps no doubt
[17:50] <craag> Solid core wire here, works well by itself.
[17:50] <craag> Orange/grey though, v boring.
[17:50] <chrisstubbs> this was solid core
[17:50] <chrisstubbs> not copper though
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[17:51] <craag> I tend to push the radials through some of the foam, so even if they completely sag, they won't obscure the radiating element.
[17:51] <mfa298> im wondering if cat5/phone cable might be a bit thin. you might be putting part of your energy into heating the wire rather than radiating it
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[17:52] <chrisstubbs> 0.48mm dia
[17:52] <craag> chrisstubbs: Like this I mean (for 868MHz): https://www.thecraag.com/File:Fizzle_in_box.jpg
[17:53] <nigelvh> For a payload, the wire diameter isn't going to be much of a concern as to radiating heat instead. What will be is if it sags and falls out of shape.
[17:53] <chrisstubbs> the one that didnt get bent went through the foam, the others stuck through the split in the payload box
[17:54] <chrisstubbs> ok i think i will try v2 with some copper wire in straws, and if the signals still crap then it must be another problem.
[17:54] <chrisstubbs> seems like a bit of an extreme way of debugging some wire "SEND IT TO SPACE AGAIN" :P
[17:55] <fsphil> I use coax for the main element, solder four wires to the shield for the radials
[17:55] <fsphil> ensures no weak points on at least one of the elements
[17:55] <craag> chrisstubbs: I think the problem was that the wire was pivoted on the solder joint(?) Which created a weak spot and so the wire sagged easily. Supporting the wire slightly (eg by putting it through the foam) really reduces any pivot-forces.
[17:56] <chrisstubbs> yeah thats true
[17:56] <fsphil> I melt a little channel on the bottom of the box for the straws
[17:56] <chrisstubbs> it was the middle payload so it was probably swinging about against the string bending the wires, could even have been sat at an angle
[17:56] <fsphil> them tape them in
[17:56] <chrisstubbs> thanks for the ideas :)
[17:58] <chrisstubbs> time to go cook dinner, bbl
[17:59] Nick change: chrisstubbs -> csaway
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[18:42] <Lunar_Lander> I think Mark and Cassie and the families now have the same feelings as we had when we saw the photos from the balloon camera
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[18:51] <SP9UOB_Tom> evening All
[18:51] <Lunar_Lander> hello SP9UOB_Tom
[18:51] <SP9UOB_Tom> hi Lunar_Lander
[18:52] <Lunar_Lander> how are you?
[18:52] <WILLdude> Evening guys.
[18:52] <SP9UOB_Tom> Lunar_Lander: im fine
[18:52] <Lunar_Lander> nice to hear that
[18:53] <WILLdude> So how's stuff guys?
[19:01] <WILLdude> Ugh.
[19:01] <WILLdude> I'm bored.
[19:02] <WILLdude> I would look at some physics stuff, but I'm crap at physics and it'd be too difficult.
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[19:04] <alexb_> Hi, just watching this: http://www.stratodean.co.uk/2013/04/overview-of-tracking-using-sdr.html
[19:04] <alexb_> Does anybody know where I can get an antenna like that?
[19:05] <craag> alexb_: The magmount?
[19:06] <alexb_> Err I'm new to this. The antenna plugged into the tv dongle
[19:06] <Lunar_Lander> WILLdude, physics is awesome
[19:06] <Lunar_Lander> it opens a whole new door on the way you look at the world
[19:06] <Lunar_Lander> it is not difficult
[19:06] <alexb_> I've got this to plug it into though: sledgehammer
[19:06] <alexb_> https://www.ettus.com/product/details/UN210-KIT
[19:06] Nick change: MichaelC|Sleep -> MichaelC
[19:07] <craag> alexb_: Try Waters and Stanton or Martin Lynch and Sons
[19:07] <craag> Oh a USRP, very nice!
[19:07] <alexb_> Fear it's overkill
[19:08] <craag> lol just a bit
[19:08] <craag> I haven't actually compared one side-by-side with a ham radio receiver yet though.
[19:09] <craag> What are you looking for the antenna for though?
[19:09] <alexb_> I did the ham test a decade ago, but never applied for the licence until last year
[19:09] <craag> As the one in the video is really designed for putting on a car roof, and I guess you're not going to be using the USRP in the car?!
[19:10] <alexb_> Could do I suppose?
[19:10] <alexb_> Will have a look at the voltage now
[19:11] <craag> Ermm voltage?
[19:11] <alexb_> 6v in
[19:11] <craag> ah, the usrp psu..
[19:11] <craag> ok
[19:11] <alexb_> Its not big
[19:12] <craag> Are you looking to track other people's habs from home, or build and launch your own?
[19:12] <alexb_> Well both
[19:12] <craag> Cool! Where are you located?
[19:12] <alexb_> but tracking other peoples first would be natural
[19:12] <alexb_> I'm in Oslo
[19:13] <alexb_> Not sure if there is much action over here
[19:13] <craag> ouch
[19:13] <craag> No, none that I'm aware of.
[19:13] <craag> And you are well out of range of the flights here in the uk.
[19:14] <alexb_> Nothing would ever head up here?
[19:14] <alexb_> Two flights went a long way last weekend
[19:14] <alexb_> not the right direction for me though
[19:14] <craag> There's been one pico balloon that was 'floated' up your way last year. We don't tend to aim up that way as there's not many listeners!
[19:15] <craag> Plus, there's a lot of water..
[19:15] <alexb_> true
[19:16] <craag> But building your own sounds a great way to get some activity going up there!
[19:16] <alexb_> I'm talking to my neighbour
[19:16] <alexb_> I'm keener than he is
[19:17] <alexb_> but I'm from England, so I could come over and test my kit
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[19:17] <craag> You'd need to investigate the laws for launching balloons in your country.
[19:17] <alexb_> yeah that's important
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[19:18] <alexb_> Is it strict in the UK?
[19:19] <alexb_> I saw that you can't have aprs in the air
[19:19] <SpeedEvil> not as strict as some places.
[19:19] <SpeedEvil> some countries essentially ban it
[19:20] <fsphil> no amateur radio from the air, you could however use aprs on an ISM band. though that would be silly
[19:21] <alexb_> Is there any limits to how many watts you can put out on the ISM band?
[19:21] <fsphil> 10mw typically
[19:22] <SpeedEvil> 10mw will get you to basically the horizon, with fairly modest antennae at a few bits a second
[19:22] <alexb_> But it's not possible to receive from any distance on the ground?
[19:23] <SpeedEvil> not really reliably
[19:23] <SpeedEvil> a hundred metres?
[19:23] <fsphil> more if assisted by a tree
[19:23] <SpeedEvil> very terrain dependant
[19:23] <fsphil> or mountain
[19:23] <fsphil> or tree on a mountain
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[19:24] <SP9UOB_Tom> evening Radim
[19:24] <radim_OM2AMR> Evening Tom
[19:24] <radim_OM2AMR> I'm preparing parcel for you now :-)
[19:24] <radim_OM2AMR> and for Anthony too :-)
[19:24] Action: SP9UOB_Tom 's payload just fall from the balcony :-)
[19:25] <radim_OM2AMR> looks like stress test :-)
[19:25] <SP9UOB_Tom> radim_OM2AMR: unwitting
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[19:28] <SP9UOB_Tom> radim_OM2AMR: How's Your Wife :) ? Wil You arrive to Gliwice ;-) ?
[19:29] <radim_OM2AMR> she should be fine, all depends on my time now, but I will :-)
[19:30] <SP9UOB_Tom> radim_OM2AMR: You are welcome :-) We are planning to do barbecue with polish sausages :)
[19:30] <radim_OM2AMR> I listened to shortwave today (3.5 MHz) and polish hams talking about your balloon :-)
[19:30] <SP9UOB_Tom> radim_OM2AMR: really :) ?
[19:31] <radim_OM2AMR> you now, you have army of listeners and supporters :-D
[19:31] <SP9UOB_Tom> radim_OM2AMR: they love to listen :-)
[19:32] <radim_OM2AMR> is Mr. Upu here ?
[19:35] <WILLdude> radim_OM2AMR: Upu is his nickname, not his surname.
[19:36] <radim_OM2AMR> WILLdude, I know :-)
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[19:38] <WILLdude> Grrf.
[19:39] <WILLdude> I'm bored as hell.
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[19:40] Action: SpeedEvil sighs.
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[19:40] <SpeedEvil> I want to make balloons - sort of.
[19:40] <SpeedEvil> 1mm shells 1cm diameter, of concrete, 10^7 or so.
[19:40] <SpeedEvil> this seems tricky.
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[19:41] Nick change: csaway -> chrisstubbs
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[19:41] <chrisstubbs> SpeedEvil, sounds like a perfect excuse for a DIY rotational moulding machine
[19:42] <chrisstubbs> or a split casting
[19:42] <SpeedEvil> split casting maybe.
[19:42] <Lunar_Lander> hi radim_OM2AMR
[19:42] <SpeedEvil> would be fun to make.
[19:42] <radim_OM2AMR> hi lunar my friend :-)
[19:43] Action: WILLdude wonders why boredom even exists
[19:43] Action: WILLdude would do some physics stuff or homework, and then realizes he's shit at both.
[19:43] <SpeedEvil> I want to properly line a pond, with a cement mixture. but to conform to the liner, I would need a concrete of density close to 1.
[19:44] <SpeedEvil> s/liner/hole/
[19:45] Action: WILLdude realizes he's wallowing and shuts up.
[19:45] <craag> What was the verdict with the 600 baud HABLAB yesterday by the way?
[19:45] <mfa298> WILLdude: the only way to get good at something is by practice.
[19:45] <craag> Apart from breaking habitat, did it work ok?
[19:46] <chrisstubbs> when it got up and a little closer to me 600b worked pretty well
[19:46] Action: WILLdude cba to do anything, but hates not doing anything.
[19:47] <chrisstubbs> but i think updates that frequent seem a little unnecessary for habbing?
[19:47] Action: WILLdude can't live with that choice.
[19:47] <chrisstubbs> *frequency
[19:47] Action: WILLdude Figures the only way out of that paradox is death.
[19:48] <craag> chrisstubbs: Perhaps.. but it looks cool :)
[19:48] <chrisstubbs> yeah, these things need to be experimented with
[19:49] <chrisstubbs> if 600b was needed, maybe a backup 50b transmitter would be a good idea too
[19:49] <craag> Yeah definetely.
[19:49] <mfa298> with 600bd you'll be able to send even more pictures with ssdv
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[19:50] <Lunar_Lander> radim_OM2AMR, how are you today?
[19:50] <chrisstubbs> is live video out of the question? at 600b i guess it would be far too slow to have at a decent framerate/resolution
[19:50] <radim_OM2AMR> Lunar_Lander, I'm packing AVA right now :-)
[19:51] <fsphil> sadly yea, still too slow
[19:51] <Lunar_Lander> cool
[19:52] <fsphil> I would still like to try NBTV
[19:52] <fsphil> something for my Pi flight maybe
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[19:55] <SP9UOB_Tom> fsphil: i have some spare ARM7 boards, unfortunetly without documentation... but there are for free :-)
[19:55] <SP9UOB_Tom> fsphil: no need to fly PI :-)
[19:55] <fsphil> do they run linux?
[19:56] <SP9UOB_Tom> fsphil: http://sp9uob.verox.pl/pliki/trimble_tracker.jpg
[19:56] <SP9UOB_Tom> fsphil: dont know yet - but is possible, some of my friends working on it
[19:56] <fsphil> very nice
[19:57] <fsphil> I ask because interfacing with a usb camera would be annoying
[19:57] <SP9UOB_Tom> fsphil: boards have 2M of flash and 8M RAM - enough to run small linux
[19:57] <SP9UOB_Tom> 100% no usb onboard, but SPI and UARTS
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[20:01] <fsphil> is it difficult building an arm based board?
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[20:14] <alexb_> Would this be any good for receiving the signals from the balloons? http://uk.rs-online.com/web/p/telemetry-antennas/5324418/
[20:15] <cuddykid> does anyone have a screen shot of what ssdv data looks like coming through fldigi?
[20:16] <chrisstubbs> alexb_, a roof mounted 1/4 or colinear or yagi would be far better
[20:17] <chrisstubbs> for short range / debugging that would work though
[20:17] <alexb_> thanks chrisstubbs
[20:18] <fsphil> cuddykid: http://www.sanslogic.co.uk/ssdv/ssdv-sample-20120916.zip
[20:18] <fsphil> a sample image
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[20:19] <cuddykid> thanks fsphil
[20:21] <WILLdude> Hi people.
[20:21] <WILLdude> And griffonbot, zeusbot.
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[20:22] Action: fsphil waves
[20:22] Action: SP9UOB_Tom waves to fsphil
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[20:27] <chrisstubbs> Well that should be the cheapo time bug fixed :)
[20:28] <chrisstubbs> whats everyone up to?
[20:29] <Upu> ping radim_OM2AMR
[20:32] S_Mark (~S_Mark@212-139-114-61.dynamic.dsl.as9105.com) joined #highaltitude.
[20:32] <griffonbot> Received email: Mike Bessant "Re: [UKHAS] Altitude control with valve"
[20:33] <S_Mark> Hi guys.
[20:33] <S_Mark> got back a few hours ago
[20:33] <chrisstubbs> Evening mark
[20:33] <Babs> Congrats S_Mark
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[20:33] <S_Mark> Thanks very much
[20:33] <fsphil> back to earth then? :)
[20:33] <S_Mark> It all worked lol
[20:33] <mfa298> well done S_Mark
[20:33] <Laurenceb__> antares launch coming up
[20:33] <S_Mark> Yep
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[20:34] <SP9UOB_Tom> radim_OM2AMR: and here is mine: http://sp9uob.verox.pl/pico/pico.png
[20:34] <SP9UOB_Tom> oops
[20:34] <chrisstubbs> And the moment of truth s_mark, hows the footage?
[20:35] <Upu> hey SP9UOB_Tom looks like a PIC
[20:35] <S_Mark> we have some brilliant pictures from the canon looking straight down
[20:35] <S_Mark> just after takeoff and prior to landing
[20:35] <Laurenceb__> http://www.youtube.com/watch?v=pe-yhsV-UbA
[20:35] <SP9UOB_Tom> Upu: yeah - assembled: http://sp9uob.verox.pl/pico/pico1.jpg
[20:36] <Upu> see PM :)
[20:36] <Upu> hey S_Mark
[20:36] <S_Mark> The GoPro got a little misty
[20:36] <chrisstubbs> Great! :)
[20:36] <S_Mark> Hey Upu
[20:36] <chrisstubbs> ahhh
[20:36] <Upu> yeah fly then in no case
[20:36] <fsphil> well chosen Laurenceb__
[20:36] <S_Mark> yes we need to do so
[20:37] <Laurenceb__> what µC is that?
[20:37] <S_Mark> we have two balloons, so still got a second, plus enough gas for a second...
[20:37] <S_Mark> we thought we'd fly it with the antifog inserts, as it was our first go
[20:37] <daveake> S_Mark Did you use the case for the GoPro?
[20:37] <daveake> Oh
[20:37] <daveake> Don't
[20:37] <daveake> Did you ask here about that?
[20:38] <daveake> You'd have received some strong advice not to use the case and especially not the inserts :)
[20:39] <Morseman> I've been looking through my stats and they tell me "good but no cigar" so I'm going to stop. This will be no loss to the system Upu regularly hears all that I do, and more and I don't appear to be adding anything to the system with my reports
[20:39] <S_Mark> I did some research, some guys did and got ok results, some didnt and obv got good results. I think, because it was our first go and there was a higher probability of things going wrong on the first go, we played it safe
[20:39] <Upu> hmm
[20:39] <Upu> well not true you may get a packet that I don't get
[20:40] <Upu> oh yes antifog inserts
[20:40] <Upu> I did that once
[20:40] <eroomde> just wait until it flies over you Morseman
[20:40] <Upu> they have the opposite effect
[20:40] <daveake> I think everyone who has a gopro does it once
[20:40] <S_Mark> oh really!?
[20:40] <Morseman> So, I'll not be monitoring any more launches. Thanks for the help and good luck for any future flights
[20:40] <Upu> I guess the case was very hard to open
[20:40] <S_Mark> very!
[20:40] <Upu> gopro cases are good at keeping pressure on the outside out
[20:40] <Upu> but crap at keeping pressure on the inside in
[20:41] <Upu> so the pressure inside drops
[20:41] <Upu> the antimist strips boil and condense on the coldest part
[20:41] <Upu> which is the lense
[20:41] <S_Mark> hmmmmm!
[20:41] <Morseman> eroomde if it did, my horizontal beam could not cope and even a vertical would struggle as most verticals are deaf off their 'ends' anyway
[20:41] <S_Mark> oh dear
[20:41] <S_Mark> ok, well we wont do it second time.
[20:42] <Upu> however you know that now :)
[20:43] <Upu> oh btw Morseman don't use me as a reference point, I wasn't here for Steve's launch
[20:43] <Morseman> eroomde even if it did fly over me Upu would hear it :)
[20:43] <S_Mark> yeah for sure. The tracker worked well though I think - good signal? Anything that I should change code wise?
[20:43] <daveake> mind the gap
[20:43] <Upu> signal was good, no bugs that had to be fixed
[20:43] <Upu> yes
[20:43] <Wouter-[pa3weg]> @Mark: Congrats on the flight
[20:43] <chrisstubbs> S_Mark, i had you loud and clear
[20:43] <Upu> loose the gap
[20:43] <Morseman> Upu even looking at that launch my stats were poor
[20:43] <x-f> Orbital Antares launch in 16 minutes - http://www.ustream.tv/channel/nasa-media-channel
[20:43] <Morseman> 1%
[20:44] <S_Mark> so just continuous transmissions
[20:44] <S_Mark> no delay
[20:44] <x-f> how long was the gap?
[20:44] <S_Mark> think it was 1000ms
[20:44] <daveake> Long enough to lose a lot of the $s
[20:44] <Morseman> In fact (like Mr Cellophane) I'm Mr 1%
[20:44] <Upu> yeah no gap is fine
[20:44] <x-f> :/
[20:44] <S_Mark> ok
[20:44] <x-f> we have about two seconds
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[20:44] <Upu> did the GSM tracker work at all ?
[20:45] <S_Mark> no probs, how come it loses the $s?
[20:45] <fsphil> ironically the solution to gaps is interrupts
[20:45] <S_Mark> No it didn't!
[20:45] <chrisstubbs> :O
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[20:45] <daveake> No surprise there either
[20:45] <S_Mark> Could not get an answer
[20:45] <x-f> fsphil, will have to investigate that option
[20:45] <fsphil> fldigi sometimes takes a few characters to lock into the characters
[20:45] <chrisstubbs> did it just ring off to voicemail?
[20:45] <daveake> I used one twice, with a 50% success rate and not that good when it did work
[20:45] <S_Mark> yes
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[20:46] <Morseman> I'll monitor my own launches, like others do, but I'll not look for the others.
[20:46] <mfa298> Morseman: I miss a lot of flights, personally I see it as a challenge of what can be done with the the avaialable kit and a great way to test different recievers / antennas
[20:46] <Upu> Cassie looked happy anyway
[20:46] <fsphil> I can only receive flights above 25km, I still give it a go :)
[20:46] <S_Mark> the payload landed upside down on the lid - so had great signal when we were close! Nice coax aerial
[20:46] <Morseman> mfa298 My results say it all 1% almost across the board
[20:46] <Upu> yeah even with a compressed antenna you'll generally receive it locally
[20:46] <daveake> Indeed - doesn't matter how far below Upu we all get in the stats, it's the taking part that counts :)
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[20:47] <Upu> when was I top of the stats anyway
[20:47] <Wouter-[pa3weg]> Antares has some of my companies hardware, so I will cross my fingers
[20:47] <Upu> I missed Steve's launch so I'm no where near :/
[20:47] <daveake> I mean per launch not overall :)
[20:47] <fsphil> lol, I didn't even see that one on the waterfall
[20:47] <SP9UOB_Tom> 300Farads super cap is performing very well as welder :-)
[20:48] <fsphil> yikes
[20:48] <fsphil> that's a lotta farads
[20:48] <Morseman> I looked at all the pie graphs and I barely brake the bottom 2% of all trackers - My station is not statisically significant here
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[20:49] <Randomskk> Morseman: everyone receives all the packets at altitude
[20:49] <daveake> fsphil's stats probably have a zero before the decimal point but he always has a go anyway
[20:49] <SP9UOB_Tom> lots of amperes :-) Nice welds metal tape to batteries :-)
[20:49] <Randomskk> it's the one packet you get at a lower altitude than anyone else that counts
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[20:49] <Randomskk> significance isn't about total number of packets, it's about being in the right place at the right time to get the final packet that makes the difference between recovery and not
[20:50] <Randomskk> regardless all your efforts so far are appreciated and of course you can do what you want ;)
[20:50] <Randomskk> I only track the very occasional payload too
[20:50] <mfa298> Personally I'd wouln't base it off the stats, the useful aspect of having lots of listeners is that someone has to be the closest at the start/end which are the important bits
[20:50] <daveake> Quite so
[20:51] <daveake> And it's good practice for your own flights
[20:51] <Wolfy-K4GHL> T-10 to launch of Antares from Virgina USA ... 3 phonesat micro sats onboard.. they are looking for telemetry uploads on the 437mhz freq through its life in space, http://www.phonesat.org is the site, and http://www.nasa.gov/multimedia/nasatv/index.html to view the launch
[20:51] <S_Mark> Seemed like we had a lot of trackers - is there a stats page? I think there is somewhere isnt there?
[20:51] <Morseman> mfa298 being right in the middle of the UK - Not likely here unless it falls on Bolsover Castle...
[20:51] <daveake> And it helps with the community spirit
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[20:51] <Upu> http://habitat.habhub.org/stats/ S_Mark
[20:51] <daveake> Quite a few flights have had someone close enough to receive on the ground, which helps a lot
[20:52] <Upu> you had alot of listeners
[20:52] <Laurenceb__> Morseman: you're in Bolsover?
[20:52] <Morseman> I've been looking at my stats on that stats page. It's not good
[20:52] <daveake> stats DON'T MATTER don't you get that??
[20:52] <Morseman> Laurenceb_ Yes, that's where I live :)
[20:52] Action: Laurenceb__ is just west of Derby
[20:53] <nigelvh> You know what my stats are on that page? 0. But I'd LOVE to participate.
[20:53] <Wouter-[pa3weg]> @Morseman why base your hhappiness on the stats
[20:53] <mfa298> Morseman: I tried listening to almost all the flights yesterday, I only got good packets on one flight so most of my stats for yesterday were 0%.
[20:53] <Wouter-[pa3weg]> its about you having fun and helping out the teams
[20:53] <Morseman> daveake They do, because they show what the relative benefit of each stations contribution is - at 1% I'm adding just noise to the satts
[20:54] <Wouter-[pa3weg]> no, if you happen to have the missing 1% that still is valuable
[20:54] <daveake> You still don't get it.
[20:54] <Morseman> stats
[20:54] <craag> Morseman: Until that day when the payload heads your way, and the antenna is damaged so no-one else can receive it..
[20:54] <craag> In which case, you become the saviour!
[20:55] <nigelvh> I WISH we had the network you guys have over there, and the network exists because you all try.
[20:55] <Morseman> craag on that day I'll break out the FT817 and a 3ele yagi - and you can email me to warn me that Bolsover Castle is a likely target ;)
[20:55] <Upu> anyway its entirely voluntary if you don't want to track no one is forcing you but your contribution no matter how little you feel it is, is appreciated
[20:55] <daveake> Look, if you want to give up helping because you think you're no help, fine. Like I'm about to give up trying to tell you that it doesn't matter where you are in the stats, and that you still may be the last person standing when a launch lands near you, and regardless oif that there's a community spirit which you're more part of if you do help.
[20:55] <daveake> EOT
[20:55] <eroomde> that sounds like a cool place to land
[20:56] <Upu> and what nigelvh just said
[20:56] <Morseman> OK daveake - Thanks
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[20:56] <daveake> oh well
[20:56] <eroomde> blimey
[20:56] <nigelvh> hmm
[20:57] <daveake> top of the sulking stats anyway
[20:57] <Upu> and buy a house on a hill and a huge epeen yagi ... oh he left
[20:57] <eroomde> this does seem to happen every few months with him, i have noticed
[20:57] <eroomde> some inexplicable flap and dramatic exit. normal service resumes a few weeks later
[20:57] <Upu> lol
[20:57] <daveake> If I move to where I'm hoping to move to, even that won't help Upu :p
[20:57] <Upu> haha
[20:58] <daveake> Still won't be as far away as fsphil
[20:58] <nigelvh> Still won't be as far away as nigelvh
[20:58] <daveake> true :)
[20:58] <Upu> anyway S_Mark did you notice your payload prediction was bouncing around the M1 ?
[20:58] <daveake> We all did :p
[20:58] <Upu> we didn't mention it as not much you could do about it at the time
[20:58] <S_Mark> ha yeah, that defo had us worried!
[20:59] <S_Mark> and also central Milton Keynes, and also those ponds/lakes
[20:59] <Upu> I'd have taken a pond over the M1
[20:59] <S_Mark> yeah haha it was spot on the M1 for ages wasn't it
[20:59] <Upu> worryingly so
[21:00] <Upu> but the faster decent helped it
[21:00] <chrisstubbs> Tough choice between M1 and Sea though
[21:00] <Upu> anyway all good
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[21:01] <chrisstubbs> Antares is up
[21:01] <Upu> how fogged up was the GoPro, mine started to clear at altitude
[21:01] <Upu> 10kfeet
[21:01] <Upu> lol
[21:01] <Upu> thats a good ascent rate
[21:01] <Upu> 900feet a second
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[21:01] <arko> Like a bullet
[21:02] LokisSword_ (5eabd030@gateway/web/freenode/ip.94.171.208.48) joined #highaltitude.
[21:02] <x-f> nominal bullet
[21:02] <LokisSword_> Evening all
[21:02] <Upu> evening
[21:02] <eroomde> i love Chechnya being in the news
[21:02] <S_Mark> it was pretty misty, there was a corner that wasnt misted and that looked real good lol
[21:02] <eroomde> i always have to over-pronounce it like brigit jones (in my head)
[21:02] <Upu> that was a surprise
[21:03] <LokisSword_> Was Stratodean successfully recovered? I had to go out before the end
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[21:03] <S_Mark> At the peak it cleared a bit
[21:03] <Upu> yes LokisSword
[21:03] <Upu> yeah use the open backed case or no case at all next time
[21:03] <arko> Oh nice
[21:03] <S_Mark> Hi LokisSword - yep we found it in a field next to a public footpath - super easy!
[21:03] <Upu> sucks but there you go
[21:03] <S_Mark> ok yep wont make same mistake again
[21:04] <LokisSword_> Excellent :) news S_Mark, pics or video available?
[21:04] <Upu> https://twitter.com/stratodean/status/325954238838616067/photo/1
[21:04] <chrisstubbs> are you uploading your cannon pics now?
[21:04] <S_Mark> Just going to put a few select ones on the blog now
[21:04] <chrisstubbs> ah cool
[21:04] <S_Mark> and will do all the rest tomorrow
[21:04] <S_Mark> hopefully
[21:04] <Upu> cool
[21:04] <LokisSword_> Great, throw up a link, would love to see them. Your payload was my first live decode - so thanks :)
[21:05] <arko> :) woo! Congrats to stratodean
[21:06] <chrisstubbs> S_Mark, you used softwareserial and tinygps right?
[21:06] <alexb_> Has anybody attempted to fly a balloon with a GSM tracker? I have one of these: http://gotop.cc/index.php/product/Personal%20GPS%20tracker%20TL-206.html and I made this to track it: http://example.location.io/
[21:06] <S_Mark> cheers arko !
[21:06] <Upu> haha alexb_ yes S_Mark did today
[21:06] <S_Mark> yes chrisstubbs, the code is on github
[21:06] <Upu> tell them how it went S_Mark :)
[21:06] <S_Mark> it didn't work!
[21:06] <S_Mark> would not answer when we knew it was on the ground
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[21:07] <chrisstubbs> my SS played up a little in the end on analysis
[21:07] <S_Mark> chrisstubbs flew one yesterday though
[21:07] <arko> eroomde: http://diydrones.com/profiles/blogs/nasa-using-arducopter
[21:07] <G0DJA> eroomde and you forget my upstairs connection as well - Thanks
[21:07] <Upu> did work eventually
[21:07] <alexb_> Not even when the balloon landed?
[21:07] <chrisstubbs> yeah came to life after 20 mins or so
[21:07] <Upu> no they are very hit and miss alexb_ use a radio as a primary and one of those as backup
[21:07] <G0DJA> Bye all
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[21:08] <cuddykid> fsphil: I've been running that audio back through fldigi but when I open the SSDV RX window nothing is there.. there's no sign of anything happening - I really should have listened into an SSDV flight :P
[21:08] <Upu> radio isn't that difficult see :
[21:09] <fsphil> cuddykid: make sure the parameters are right, 300 baud, 8N2 and 350hz shift
[21:09] <fsphil> it should start decoding automatically
[21:09] <Upu> also radio transmits constantly so makes it easier to locate
[21:09] <cuddykid> fsphil: yep, got them set, it should just look like garble coming through?
[21:10] <daveake> That's what it's supposed to look like :)
[21:10] <fsphil> yea the text box will show gibberish
[21:10] <daveake> View --> SSDV see if it's decoding anything
[21:10] <fsphil> though you should see a "Uf" appear now and then
[21:10] <Upu> PCB's should be here tomorrow cuddykid
[21:10] <fsphil> and the decode bar will turn green on successful decode
[21:10] <daveake> Also the green box that shows telemetry normally should show "Decoded image packet ...." once in a while
[21:11] <cuddykid> hm, nothing being decoded
[21:11] <fsphil> other things, make sure AFC is off and the mode in fldigi is USB
[21:11] <daveake> Rv?
[21:11] <fsphil> and Rv is not selected
[21:11] <cuddykid> nothing showing up either in RX window - I'll have a play about
[21:11] <eroomde> 60s had the best aesthetic
[21:11] <eroomde> http://i.imgur.com/MOpPVJy.jpg
[21:11] <fsphil> at 300 baud it takes about 10 seconds to decode a packet
[21:12] <cuddykid> Upu: excellent - I've been chasing them up for the money for components, hopefully I'll get it this week
[21:12] <fsphil> the 60s where certainly shiny
[21:13] <eroomde> shiny stainless
[21:13] <eroomde> i like it
[21:13] <eroomde> maybe spent too much time around rockets
[21:13] <eroomde> however, if i moved to mojave i would still never go for the jeans, leather jacket and paunch look
[21:14] <eroomde> http://www1.pictures.zimbio.com/gi/Virgin+Galactic+SpaceShipTwo+First+Commercial+iuJtUXbv2dDl.jpg
[21:15] <fsphil> oh dear
[21:15] <fsphil> not a good look
[21:15] <arko> Haha
[21:15] <chrisstubbs> S_Mark your data looks pretty consistent actually, no GPS dropouts due to softwareserial issues
[21:15] <eroomde> http://farm4.staticflickr.com/3222/3071849153_aaaa6a4c5b_z.jpg
[21:16] <eroomde> (xcor boss)
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[21:16] <S_Mark> Nope I didn't have any software serial issues
[21:16] <cuddykid> fsphil / daveake : got it :) had squelch on
[21:16] <arko> Yeah, if im ever a ballionare, im still doing tshirt and shorts
[21:16] <fsphil> ah ha
[21:16] <chrisstubbs> Result!
[21:16] <fsphil> yea see it uploading
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[21:16] <cuddykid> right, now just need to see if I'm getting sent anything decent from my pi :)
[21:18] <S_Mark> Have a few ideas for the second launch, we might ask for Helium rental extension
[21:19] <chrisstubbs> If you have enough for another launch dont let it go back!
[21:20] <S_Mark> Yeah we do we reckon
[21:20] <daveake> What size cylinder?
[21:21] <S_Mark> jumbo
[21:21] <S_Mark> 75k
[21:21] <daveake> Plenty then
[21:21] <S_Mark> how many do you reckon out of one jumbo daveake? We had a 1000g today
[21:22] <cuddykid> I think balloon helium charge around £7/week but iirc BOC only charge that per month
[21:22] <daveake> 2 or 3 depending
[21:22] <daveake> It's 9.1 m^3 IIRC
[21:22] <eroomde> L bottle?
[21:22] <daveake> And you probably used about 3
[21:22] <cuddykid> yeah, should be able to do 3 x 3m^3 for a fairly lightweight payload
[21:22] <LokisSword_> How much for the cylinder up front (couldn't see guide prices anywhere on the wiki)
[21:23] <daveake> L is about £140
[21:23] <daveake> But a T (I hope I'm remembering these right) at £90 does 1 standard launch
[21:23] <daveake> http://balloonhelium.co.uk/
[21:23] <LokisSword_> Makes the £140 sound reasonable for 3 then :)
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[21:24] <S_Mark> yeah ok we'll defo keep it
[21:24] <S_Mark> thanks
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[21:27] <SpeedEvil> /me notes that natural gas is 50p/m^3
[21:27] <mattbrejza> lift per m3?
[21:27] <chrisstubbs> Yeah i saw methane on the burst calculator
[21:28] <SpeedEvil> (you do need double the volume for the same lift)
[21:28] <mattbrejza> not too bad i suppose
[21:28] <SpeedEvil> which will knock 5km ish
[21:29] <chrisstubbs> just drill a hole in the pipe to the oven and hold balloon to it :P
[21:29] <SpeedEvil> the pressure in the pipe is low enough that it may cause issues with it not inflating
[21:30] <daveake> Suddenly H2 seems much safer .... :p
[21:30] <Upu> if you're going to go to the trouble of using a cheap explosive gas..
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[21:37] <fsphil> hah
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[21:39] <LokisSword> I place a bet that I was listening with the most Heathrobinson antenna today
[21:40] <LokisSword> TV aerial extension cable, painters pole, copper stripped from electrical cable, a straw and electrical tape = worlds worst Moxon
[21:41] <Wouter-[pa3weg]> no salted wet string involved?
[21:42] <LokisSword> It probably may as well have been.. but considering it was below roof level with no clear line of sight to the balloon I'll say it did ok
[21:43] <craag> I'm guessing you are 'LOKI', 176 strings, not bad at all!
[21:44] <LokisSword> I missed the launch and the end due to family, but seemed to be going ok.
[21:44] <mfa298> LokisSword: In terms of description I dont think that's not mucg worse than my 34mm waste pipe and theaded rod combo. It more about putting it together sensibly
[21:44] <LokisSword> Where can you see the breakdown of receivers/strings?
[21:44] <craag> LokisSword: http://habitat.habhub.org/stats/
[21:45] <LokisSword> craag: thanks
[21:46] <craag> My first hab tracking was with a wire dipole soldered onto a BNC socket and poked out of my window on a piece of pvc pipe. I think I got about 30 strings :P
[21:47] <LokisSword> mfa298: tried to get measurements as close as possible and seemed to be doing an Ok job
[21:47] <fsphil> I managed to decode a payload, can't remember which now, with just a magmount on my car
[21:47] <LokisSword> craag: don't joke - that's exactly what I was doing
[21:48] <fsphil> it always does amaze me how well 10mw works
[21:49] <LokisSword> yup - it's amazing. how does it work transmitting back to a payload with 10mw through a yagi?
[21:49] <LokisSword> for cutdown / etc?
[21:49] <fsphil> 10mw wouldn't light an LED that
[21:49] <fsphil> much*
[21:50] <LokisSword> my last decodes were from my SDR as I didn't want to risk attaching my bodge job to my mates PCR-1000 :D
[21:51] <Wouter-[pa3weg]> yep, 10mW is amazing
[21:51] <LokisSword> would probably have got more decodes if I'd stuck with the icom, seems much more sensitive than the un-amped SDR
[21:52] <griffonbot> @AnthonyStirk: RT @stratodean: New Post: We did it! http://t.co/ZqFH3qbpm5 #ukhas [http://twitter.com/AnthonyStirk/status/326091027482017792]
[21:52] <Wouter-[pa3weg]> Just think about the amount of power....
[21:52] <Upu> I recognise that last picture from google maps S_Mark :)
[21:53] <S_Mark> Haha
[21:53] <S_Mark> That canon was real good
[21:53] <Upu> yep I've not done a downward facing camera
[21:54] <LokisSword> lovely pictures, looking forward to the rest
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[21:55] <Wouter-[pa3weg]> great pics!
[21:55] <arko> wow!
[21:55] <arko> these are great
[21:55] <arko> a lot of people with solar huh?
[21:55] <S_Mark> Yeah looks like it, glad we didnt land on them :p
[21:55] <Upu> ironic in the UK isn't it
[21:56] <arko> very haha
[21:56] <Upu> right night all
[21:56] <arko> and here we dont have any really
[21:56] <arko> night Upu
[21:56] <Wouter-[pa3weg]> Actually, solar panels run best with not too much sunshine
[21:56] <S_Mark> Night upu!
[21:56] <LokisSword> night upu
[21:56] <Wouter-[pa3weg]> good night
[21:57] <Wouter-[pa3weg]> or more precice: with good cooling
[21:57] <chrisstubbs> Im off too, night!
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[21:57] <Wouter-[pa3weg]> d´oh, precise
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[22:00] <nommo> S_Mark: Great pics! I bet you've got your work cut out going through the rest! Must be great fun though
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[22:00] <Semafoor> Hya
[22:01] <S_Mark> Hey nommo, yeah I think we might just upload them all to a gallery and let people go through them!
[22:02] <Wouter-[pa3weg]> that would be awesome
[22:02] <Wouter-[pa3weg]> I guess the GoPro is a bit more work?
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[22:02] <nommo> Good call! Crowdsource it! I'd love to edit some video if you upload that too
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[22:03] <S_Mark> The video was not sooo clear - we might re do the flight with the spare gas and re attempt the gopro
[22:03] <nommo> Foggy?
[22:03] <S_Mark> we kept the case on - knowing there was a risk and turns out it did mist up
[22:04] <S_Mark> yeah
[22:04] <nommo> Ahh bummer - well it did look like a possible splash down for a while...
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[22:05] <nommo> At least you can have another go..
[22:05] <nommo> how long does it take to get the permission etc?
[22:06] <fsphil> they don't always mist up
[22:06] <fsphil> not sure why
[22:07] <S_Mark> we had the antifog inserts in...
[22:07] <fsphil> ah
[22:07] <fsphil> or fog inserts in this case
[22:07] <S_Mark> apparently that has the adverse affect?
[22:07] <fsphil> yea they release moisture when the pressure drops
[22:07] <fsphil> it basically boils out of it
[22:08] <S_Mark> yeah
[22:08] <S_Mark> wish I didn't add them in!
[22:08] <fsphil> even without them it can still fog up
[22:08] <fsphil> but not always
[22:09] <Robint91> mhh
[22:09] <Robint91> http://i.imgur.com/tE15kMf.png
[22:09] <Robint91> DominoEX11 seems to work
[22:09] <craag> Robint91: What's this with?
[22:09] <Robint91> but still some bad decodes
[22:09] <fsphil> I had similar bad decodes
[22:09] <Robint91> craag, dominoEX11 generated with a STM32F4
[22:10] <Robint91> craag, and outputted with the internal 12bit DAC
[22:10] <nommo> time for bed - bye all
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[22:10] <craag> What transmitter? I've been trying to use an AD9850 DDS.
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[22:10] <craag> oh
[22:10] <craag> Nice!
[22:10] <Robint91> craag, still working at base band
[22:10] <Robint91> craag, but the idea is to use a IQ modulator to generate the HF
[22:11] <craag> I see. I've got the DDS to about 10% correct decodes at the moment, I think the timings still quite off.
[22:11] <S_Mark> ok, thanks all for today, I'm off now. Catch you soon
[22:11] <SpeedEvil> random spam
[22:11] <SpeedEvil> http://brainsciencepodcast.com/bsp/neuroplasticity-a-review-of-its-discovery-bsp-10.html
[22:12] <SpeedEvil> awesome podcast
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[22:12] <Wouter-[pa3weg]> I´m off too, cheers all
[22:12] <Robint91> craag, http://i.imgur.com/sHqrnJ6.png DominoEX + PSK63 from the same microcontroller
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[22:13] <craag> Fantastic!
[22:14] <craag> I couldn't get PSK to work with the DDS due to the zero-crossing AM (which you can't do with the DDS alone)
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[22:16] <Robint91> craag, ah yeah, I'm going to make a universal board for my HAB project
[22:17] <craag> Hmm, I think my KL-25z might have a DAC capable of doing something like that.
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[22:18] <mattbrejza> fpga ftw
[22:18] <craag> But I'll play with the DDS first. I think that's going to tie in with the HaTTY development.
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[22:18] <craag> hehe yeah!
[22:18] <Robint91> craag, Timer + DMA + DAC is all what you need
[22:19] <Robint91> craag, HaTTY?
[22:20] <craag> Robint91: We're talking about stripping RTTY back to FSK (no start/stop bits), with a 4-bit varicode, and running it at <<50 baud for HF paths.
[22:21] <craag> Maybe play with some interleaving/fec at some point as well.
[22:21] <gonzo__> I did a talk on habbing at my radio club this eve and got chatting to one of the more tech people afterwards
[22:22] <gonzo__> for std 434meg flights, the prob is not generally weak sigs, apart from on the last few mins of descent
[22:23] <gonzo__> when you want a good fix
[22:23] <Robint91> craag, somethign like DominoEX/ THOR/ MFSK is better
[22:23] <Robint91> craag, of PSK63
[22:23] <Robint91> *or
[22:23] <craag> Robint91: MFSK is something that we could implement on top of the protocol at some point (just use more bits/symbol)
[22:24] <craag> The great thing about MFSK/FSK is you don't need a linear PA, unlike PSK.
[22:24] <mattbrejza> yea but not really an issue for 10dBm
[22:25] <craag> true
[22:27] <qyx_> Robint91: which freq synthesizer are you using for LO?
[22:27] <LokisSword> Guys - thoughts on the diamond x-30 for hab tracking? Good enough if up above roof level?
[22:27] <Robint91> qyx_, a PLL builtin the mixer, driver by a xtal LO
[22:28] <Robint91> qyx_, I haven't designed that part of the circuit
[22:28] <craag> LokisSword: Perfect!
[22:28] <qyx_> Robint91: have a partno at least? i was searching for something suitable last time, but everything seems to be quite expensive
[22:28] <Robint91> qyx_, RFMD2081
[22:29] <qyx_> couldn't get under ¬50 for sdr recv
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[22:29] <qyx_> wot, nice ic
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[22:31] <Robint91> qyx_, something like this as REF and oscillator for the STM32F4 http://www.foxonline.com/pdfs/fox924.pdf
[22:32] <Robint91> 2.5 ppm over -30 to +85°C
[22:33] <qyx_> i found similar
[22:34] <qyx_> hm, last time i played with psk/qpsk/qam and it should be doable on f303
[22:36] <mattbrejza> get a 2GSPS DAC and do it that way
[22:38] <qyx_> i doubt it would be cheaper
[22:38] <mattbrejza> who said anything about cheaper? :P
[22:39] <Robint91> qyx_, it is more flexible
[22:39] <mattbrejza> somewhat more feasible at HF
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[22:39] <qyx_> it is, but you need at least some fpga to drive it
[22:39] <mattbrejza> you can get fpgas for £3 now
[22:40] <qyx_> but not for 2ghz
[22:40] <mattbrejza> even the xilinx ones start at £7
[22:40] <mattbrejza> na HF thoug
[22:40] <mattbrejza> h
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[22:41] <qyx_> actually cheaper solution might be very simple VCO, something made of discrete components
[22:42] <qyx_> if doing sdr you don't have to set LO accuratelly
[22:42] <qyx_> and then measure it with freq divider and tcxo as a reference
[22:47] <Robint91> qyx_, why would I need an FPGA, I'm only doing a transmitter
[22:48] <qyx_> to drive that 2gsps dac mattbrejza suggested
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[22:50] <Robint91> lol
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[23:20] <esculca> hi everyone
[23:20] <esculca> calling from Portugal here
[23:21] <esculca> I have some problems with my SMS module
[23:21] <esculca> that uses an old NOKIA cell phone
[23:21] <esculca> can anyone help?
[23:24] <nigelvh> Welcome. I'm sorry I can't be of much help, I haven't used any SMS stuff. Hopefully someone around has.
[23:24] <esculca> hope so
[23:25] <esculca> I managed to read the HW/SW version of the NOKIa
[23:25] <esculca> but sending the SMS is tough
[23:25] <nigelvh> Sounds like you've got a good start.
[23:25] <esculca> guess so
[23:25] <esculca> :)
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[23:52] Nick change: MichaelC -> MichaelC|Sleep
[00:00] --- Mon Apr 22 2013