highaltitude.log.20110127

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[00:04] <NigeyS> wb earthshine :)
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[00:47] <NigeyS> omg
[00:47] <NigeyS> woohooooo
[00:47] <NigeyS> atlas is fixed :D! finally got the sodding sketch to upload!
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[00:49] <NigeyS> hey zuph!
[00:49] <Zuph> hey NigeyS
[00:50] <NigeyS> i got it working finally!
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[00:51] <Zuph> Cool!
[00:51] <NigeyS> purely by chance mind
[00:52] <NigeyS> have to set something inwindows com port settings
[00:54] <NigeyS> nn all
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[01:37] <Darkside> hey
[01:37] <Darkside> can someone clear spacenear.us
[01:37] <Darkside> and change the title plz?
[01:38] <Darkside> laurence__: ?
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[04:55] <Darkside> ok
[04:56] <Darkside> tethered balloon done
[04:56] <Darkside> o hi nevyn
[04:58] <SpeedEvil> :)
[05:00] <Darkside> aaaand spacenear.us cleared
[05:11] <natrium42> upcoming launch?
[05:13] <Darkside> nah
[05:13] <Darkside> i did a tethered balloon today
[05:13] <Darkside> its down now,
[05:14] <Darkside> we tethered it to 40m AGL
[05:14] <Darkside> and did some mesh networking stuff from it
[05:58] <natrium42> ah
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[07:14] <earthshine> morning
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[07:30] <jcoxon> morning
[07:30] <jcoxon> ping fsphil
[07:30] <eroomde> jcoxon: email
[07:31] <jcoxon> yeah i got it the first time round :-p
[07:32] <eroomde> hmm...
[07:32] <eroomde> oh i looks like I might just be in the 'm' recipients list
[07:32] <jcoxon> yeah
[07:32] <eroomde> i thought it might have been a co-incdence that to to:list was all 'm' ;)
[07:32] <jcoxon> hows tricks?
[07:33] <earthshine> jcoxon: did you get my email ?
[07:33] <eroomde> sore throat
[07:33] <jcoxon> earthshine, yup
[07:33] <jcoxon> hold on...
[07:33] <jcoxon> eagle file okay?
[07:33] <earthshine> sure
[07:34] <jcoxon> done
[07:35] <earthshine> thanks
[07:35] <jcoxon> yukky sore throat
[07:36] <eroomde> yep
[07:36] <jcoxon> you back in cam on sun then?
[07:37] <eroomde> should be yep
[07:37] <jcoxon> i'm thinking that it might be sensible to launch sun not sat
[07:38] <jcoxon> give me an extra day to test teh payload
[07:38] <eroomde> yes, always very helpful!
[07:38] <jcoxon> i adding a solar panel...
[07:38] <earthshine> jcoxon: question....
[07:38] <jcoxon> it gives out 100mA at peak output
[07:38] <eroomde> ah nice
[07:39] <jcoxon> 1000mAh battery / 100mAh charge = 10hrs!
[07:39] <fsphil> morning jcoxon
[07:39] <jcoxon> earthshine, shoot - will have to go in 20 mins
[07:39] <earthshine> Some resistors do not have a value - R7, R8, R9 - How do I find out what they are please?
[07:39] <jcoxon> fsphil, i emailed you instead
[07:39] <jcoxon> yeah i should really write up the board
[07:39] <fsphil> woo!
[07:40] <jcoxon> earthshine, those ones can vary depending on what you are adding to the headers
[07:40] <jcoxon> so T1 + T2 are designed for ds18b20s
[07:41] <jcoxon> P1 is for a photodiode
[07:41] <eroomde> jcoxon: what's the power management logic?
[07:41] <jcoxon> it seems the max1555 will charge the lipo when ever it can
[07:42] <eroomde> h'ok - does it need a certain voltage level input?
[07:42] <jcoxon> yes
[07:42] <eroomde> ok. so launch later so that the batt gets you through the night?
[07:43] <jcoxon> we also have 3 modes
[07:43] <jcoxon> mode 1: first 500 loops + evening mode - continous txing
[07:43] <jcoxon> mode 2: day mode - 15 sec gaps in between txing when radio powers down
[07:44] <eroomde> ok cool
[07:44] <jcoxon> mode 3: night mode - GPS gets powered down for 10 minutes then we have a burst of 10 strings then it shutsdown again
[07:44] <jcoxon> with a 2000mAh bat this setup lasted 29hrs
[07:45] <jcoxon> and once we have a lock the system draws 70mA
[07:45] <jcoxon> so we could in theory enter night with a full battery
[07:46] <jcoxon> or i might be getting this wrong
[07:46] <fsphil> hmm.. there might not be enough current from the MAX1555 to both charge the battery and run the payload
[07:46] <eroomde> well night is about 12-14hrs atm
[07:47] <jcoxon> fsphil, good point
[07:47] <jcoxon> eroomde, eek thats tight
[07:48] <fsphil> or maybe not .. from the datasheet ... "DC draws 280mA to charge the battery"
[07:48] <fsphil> ah but the panel is 100ma
[07:49] <jcoxon> so what i need to do is to run the 1000mAh battery and see how long it lasts
[07:49] <eroomde> yup
[07:49] <eroomde> and make sure the ublox is in the lowest power configuration you can get it
[07:49] <jcoxon> yeah it is
[07:49] <jcoxon> you save 4mA
[07:50] <eroomde> hmm, not the most exciting saving
[07:50] <jcoxon> no
[07:50] <jcoxon> shutting down the rf bit at night gets my consumption down to 20mA
[07:51] <eroomde> one still wants telemetry though?
[07:51] <jcoxon> so it shuts down for 10 mins
[07:51] <jcoxon> fires up the gps for 2
[07:51] <eroomde> ah i see
[07:51] <jcoxon> then transmits 15 strings
[07:51] <fsphil> what's the max gps current draw? could it be powered from an avr pin?
[07:51] <jcoxon> then shuts it all down again
[07:52] <jcoxon> gps max is 120mAh
[07:52] <jcoxon> mA
[07:52] <fsphil> nope, too muc
[07:52] <fsphil> +h
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[07:55] <jcoxon> eroomde, as i can now monitor batt voltage i was thinking of checking it on boot and if its too low shut everything down for a bit and wait till its higher
[07:56] <eroomde> ok, though bear in mind the nightmare scenario that it turns itself off at midnight and waits in a futile way many hours till sunrise
[07:56] <eroomde> by which time it has landed
[07:56] <eroomde> or it freezes completely and won't boot up
[07:57] <jcoxon> yeah
[07:57] <jcoxon> perhaps better to let it keep trying
[07:57] <jcoxon> http://www.flickr.com/photos/jcoxon77/5391956109/
[07:57] <eroomde> eeek
[07:58] <fsphil> nice
[07:58] <jcoxon> that does rely on a float
[07:59] <jcoxon> and they are 22hr flights
[07:59] <jcoxon> the burst icons are actually sunrises
[07:59] <jcoxon> :-p
[07:59] <jcoxon> i wrote some code to calculate them for the location + time
[07:59] <fsphil> I see a few turning around and heading my way -- if they get this far I can arrange to go hunt it
[08:01] <jcoxon> at least if it doesn't float we can recover
[08:02] <earthshine> jcoxon: the ds18b20 on this board isnt connected to anything
[08:03] <jcoxon> oh thats for the crystal oven
[08:04] <jcoxon> it sits under the ntx2 crystal and if you add in the resistors + transistor you can keep the temp stable and therefore the drift
[08:04] <earthshine> ahh ok
[08:04] <jcoxon> but i couldn't route it so did it by wires
[08:04] <jcoxon> its an optional extra
[08:06] <jcoxon> right time for work
[08:06] <jcoxon> cya
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[08:45] <NigelMoby> Morning
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[08:47] <fsphil> that it is!
[08:47] <NigelMoby> Fsphil its alive and receiving data
[08:48] <fsphil> what did you do?
[08:49] <NigelMoby> Was a setting in Windows to set close on the dtr pin of the ftdi
[08:51] <fsphil> I bet that's a relief!
[08:52] <NigelMoby> I was jumping for joy I can tell ya
[08:53] <fsphil> have you tried any programs yet?
[08:53] <NigelMoby> I sent a blink test
[08:54] <NigelMoby> It was late, felt like crap...
[08:55] <NigelMoby> I still have the test ntx2 code you helped me with b4 so ill try that later
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[09:35] <fsphil> printers are evil
[09:42] <jgrahamc> Yes, printers are evil.
[09:55] <fsphil> this one bit me when I tried to change the toner
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[10:12] <vk5gr> is darkside, shenki or juxta on at the moment?
[10:14] <NigelMoby> Hi vk5gr
[10:15] <juxta> I'm here vk5gr
[10:15] <vk5gr> hi - any word on the auction? it's tonight isnt it? - BTW we passed 1200 loads about an hour ago
[10:16] <vk5gr> Hi NigelMoby!
[10:16] <fsphil> are you guys auctioning the tux?
[10:16] <juxta> yeah, charity fundraiser
[10:16] <fsphil> great idea
[10:16] <juxta> i've not heard anyything yet Grant
[10:16] <NigelMoby> Buy it Phil!!!
[10:16] <vk5gr> no worries
[10:17] <vk5gr> i was going to put a little note on vimeo in response to all the well wishes we have had once we know the results
[10:17] <fsphil> haha, I've enough tux figures around here
[10:17] <juxta> good idea
[10:18] <NigelMoby> Lol I have a few here to
[10:18] <vk5gr> a lot of my vimeo contacts have been spreading it aorund as well - while the last 2 days the hits have been via the embedded link, it looks today like a lot more a coming from within Vimeo itself
[10:18] <vk5gr> I still have my original one that I got from Fry's Electronics in Los Angeles in 1999 somewhere around here too :-)
[10:18] <fsphil> sweet
[10:19] <fsphil> not sure I even knew about linux then
[10:19] <vk5gr> I was messing with Slackware and RedHat back then
[10:19] <NigelMoby> We should /. The page
[10:19] <fsphil> ooh wait I did, 1997
[10:19] <fsphil> redhat 4.1 or .2
[10:19] <juxta> I think someone was going to put a post up
[10:20] <NigelMoby> Uhoh harden the servers lol
[10:20] <griffonbot> Received email: John Graham-Cumming <jgc@jgc.org> "[UKHAS] Quick introduction from me about my HAB project"
[10:21] <vk5gr> mmmm I remember slackware 6 and 7 - I think I first took a peak at perhaps redhat 3, and I remember 4.1 - stopped playing with them in the early noughties when I headed off to do other things :-)
[10:21] <fsphil> my old isdn line got /.'ed once, and actually held out pretty well -- it was serving a picture of a leaky capacitor
[10:22] <vk5gr> well I dont think Vimeo will care - I know they have been before. Gonna leave that to juxta to take care of with the other boys if they want it to happen :-)
[10:22] <juxta> oh yeah vimeo won't have any trouble with that, hehe
[10:23] <vk5gr> I remember when some of the Vimeo videos have had 100000 plays in a week - particularly one called "Bathtub V" - a tilt shift video of Sydney harbour - it made the front page of the new papers on a slow news day from memory!
[10:24] <vk5gr> hmmm it;s climbing quick tonight! 1250 now
[10:24] <fsphil> the vimeo interface is odd
[10:25] <fsphil> or maybe I'm just too used to youtube
[10:25] <vk5gr> hits have come now from every continent except antarctica - and it has coveredf most of them except Africa, China and the middle eash
[10:25] <juxta> I prefer Vimeo
[10:25] <fsphil> scary place the middle eash
[10:25] <vk5gr> i very much prefer Vimeo too - I tried Youtube - too many commercials now - and too ful of kids ripping stuff from TV and just dumping it up there. Vimeo keeps most of that crap out
[10:26] <vk5gr> (has anyone mentioned to you that I dont speed type very well?
[10:26] <vk5gr> :-)
[10:27] <fsphil> you're doing better than me :p
[10:27] <vk5gr> juxta - I should be able to pull an Excel dump of the stats too if your interested
[10:27] <juxta> oh nice - thanks :)
[10:27] Action: fsphil loves the xchat spellchecker
[10:27] <juxta> xchat has a spellchecker?
[10:27] <juxta> I'm in xchat
[10:28] <NigelMoby> Yup lol
[10:28] <juxta> how does one enable it?
[10:28] <vk5gr> gonna have to get me a proper IRC client running again. I'm still using the web gateway
[10:28] <fsphil> and colour codes too. neat
[10:28] <vk5gr> juxta - what would you like - CSV, XML or TAB Delimited?
[10:29] <juxta> any is fine :)1
[10:29] <NigelMoby> Pdf graphs? :p
[10:29] <fsphil> settings, preferences, interface, input box
[10:29] <fsphil> tick 'spell check'
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[10:29] <juxta> hmm
[10:30] <juxta> there's a bug I can reproduce consistently in xhcat that causes it to crash
[10:30] <juxta> everytime my cat walks on the keyboard it happens
[10:30] <NigelMoby> :o
[10:30] <vk5gr> ok - isnt the solution to that to not let your cat wlak across the keyboard?
[10:30] <NigelMoby> Lol
[10:31] <fsphil> your cat is a hacker?
[10:31] <vk5gr> I can screen capture and PDF if needed!
[10:31] <vk5gr> :-)
[10:33] <juxta> he's a script kitty (harhar)
[10:33] <vk5gr> terry - check your mailbox
[10:33] <NigelMoby> Hmm my cat sleeps to much
[10:33] <juxta> oh great - thanks Grant :)
[10:35] <fsphil> lol
[10:36] <fsphil> jgrahamc, interesting idea on the speech synth
[10:36] <fsphil> (just reading your site)
[10:37] <vk5gr> juxta - did you want breakfast included with your room next Friday?
[10:38] <juxta> oh, sure - I hadn't thought much about that, but yes, sounds sensible I suppose :)
[10:38] <vk5gr> (for sat morning that is) - just finalising the bookings - waiting confirmation of availability oin one
[10:38] <NigelMoby> Don't feed him! Lol
[10:38] <jgrahamc> fsphil, not doing the speech synthesis in GAGA-1, but if that flight is successful I'll look into it because I think it would be fun.
[10:39] <vk5gr> hmmmm - that would mean more for me - mabye you are on to something NigelMoby?
[10:39] <NigelMoby> ;)
[10:41] <NigelMoby> Coffee time bbs!
[10:41] <vk5gr> and I had better head up stairs and be social!
[10:42] <vk5gr> juxta - if you hear anything of the auction drop me a note - and check out all of the feedback we have received on Vimeo too!
[10:43] <juxta> alrighty - thanks again Grant
[10:44] <vk5gr> no probs at all - happy to help out!
[10:44] <vk5gr> nite all!
[10:47] <juxta> night :)
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[11:02] <eroomde> good morning jgrahamc
[11:02] <jgrahamc> Morning
[11:02] <eroomde> it's Ed
[11:02] <jgrahamc> Hi. How's things?
[11:03] <eroomde> reasonably good, thank you. You?
[11:03] <jgrahamc> OK. At work, but moonlighting here.
[11:03] <eroomde> same
[11:05] <jgrahamc> Finally found time to work on the NTX2 last night. Where are you working?
[11:06] <jgrahamc> BRB
[11:07] <juxta> hey eroomde, quick question - do you usually tie your RF grounds to regular ground nets?
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[11:08] <eroomde> jgrahamc: machine intelligence group at the engineering dept in cam
[11:09] <NigeyS> hey eroomde
[11:09] <eroomde> juxta: I don't usually
[11:09] <juxta> alrighty, just wanted to check if it was just me :)
[11:09] <eroomde> but they might be internally connected anyway - attack it with a multi-meter
[11:09] <juxta> I suspect they are on the NTX2
[11:10] <eroomde> yeah
[11:24] <juxta> dropped you a line just now NigeyS
[11:25] <NigeyS> ahh oki cheers ill go look :D just trying to login to the dam bank grrr
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[11:36] <NigeyS> juxta, you're a star that looks fine to me :D
[11:36] <juxta> great :)
[11:36] <NigeyS> many thanks, appreciate it :D
[11:39] <jgrahamc> eroomde: thanks. What sort of machine intelligence are you doing?
[11:41] <Colin-G8TMV> the difficult sort
[11:59] <eroomde> jgrahamc: sorry for my latency. 3d reconstruction from blimp-mounted cameras, is the current project
[11:59] <eroomde> well, camera (single)
[11:59] <jgrahamc> Very interesting.
[12:01] <eroomde> it's going to be flying around glaciers in the alps, equipped with a thermal camera too, and it will make 3d skin-temp models for hydrologists
[12:01] <eroomde> because they like that sort of thing, apparently
[12:03] <jgrahamc> Neat. Is this what you are doing in Cambridge until May/
[12:05] <eroomde> yep
[12:05] <jgrahamc> I'm hoping to have my HAB project ready in February and then it'll be a case of figuring out when the winds are favourable.
[12:06] <eroomde> i'm sure there'll be a handful of decent opportunities in feb
[12:07] <jgrahamc> That would be good. Now trying to track down a suitable radio for testing the RTTY stuff. Probably can only afford an FT-790R
[12:08] <eroomde> They're absolutely super radios
[12:08] <eroomde> as sensitive as anything you can buy new now
[12:08] <jgrahamc> Just waiting for one to come up for sale on eBay!
[12:09] <eroomde> if one doesn't turn up in time, let me know
[12:09] <eroomde> I'm sure we can lend you our 790 for a bit
[12:10] <jgrahamc> Thanks. I've got an alert on eBay to let me know if one becomes available.
[12:11] <jgrahamc> I've been meaning to look at repeaters between me (Fulham) and East Anglia for some QSO. Do you know of one?
[12:11] <eroomde> I only really know the ones in east anglia
[12:12] <eroomde> london is bad for repeaters
[12:12] <eroomde> most are turned off as they were being abused
[12:12] <eroomde> i think dropping frequency might be easier
[12:12] <jgrahamc> What sort of abuse?
[12:13] <eroomde> mini-cab firms, radio broadcasts, random rants by unlicensed people
[12:13] <eroomde> that kind of thing
[12:14] <eroomde> if you're lucky you might just be able to hit GB3DB on 6m, which I suspect i could get to aswell from cambridge
[12:14] <jgrahamc> What a pain.
[12:14] <eroomde> but you'd need a 6m rig
[12:14] <eroomde> I thik your only other laternative would be echolink
[12:14] <jgrahamc> I'll get round to buying a proper rig at some point,
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[12:15] <eroomde> the icom ic-7000 is a very nice portable rig
[12:16] <eroomde> if you feel like a splurge
[12:16] <GW8RAK> And if you don't want/need to transmit, some of the better scanners cover all our potential frequencies, all modes and for around £90 on ebay
[12:17] <jgrahamc> Believe me I would love to be able to afford the IC-7000.
[12:17] <jgrahamc> Agree on the scanners, that might be a good stop gap solution.
[12:18] <GW8RAK> It's one I'm looking at as they can be used for so much more than just amateur and the occasional HAB
[12:19] <eroomde> bbl
[12:25] <SpeedEvil> And Laurenceb keeps threatening to make a cheap USB module too.
[12:26] <SpeedEvil> (It's not trivial, but would be awesome)
[12:26] <Laurenceb> its not too hard with cc1020
[12:26] <Laurenceb> but a pain to solder
[12:26] <GW8RAK> For tx'ing?
[12:26] <Laurenceb> no scanner
[12:37] <Colin-G8TMV> You might be able to hit the Bromley repeater from Fulham
[12:43] <Laurenceb> turns out STVD + ST9 dev tools under wine is using GCC as the backend
[12:43] <Laurenceb> interesting stuff
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[12:52] <daviddjv> Hello, anyone able to help me with a launch location in the UK. I am currently looking for a site to use for a launch that needs to be done ASAP.
[12:56] <Darkside> ok
[12:56] <Darkside> argh
[12:56] <juxta> hey Darkside
[12:56] <Darkside> wrong channel
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[13:01] <Darkside> woo
[13:01] <fsphil> hi daviddjv, define ASAP :)
[13:02] <Darkside> ok
[13:02] <Darkside> just exporting and uploading pics
[13:02] <juxta> :D
[13:03] <fsphil> hiya Darkside, was that presentation ever put online?
[13:03] <fsphil> the live stream just didn't want to work for me unfortunately
[13:03] <juxta> same
[13:03] <juxta> I wouldn't mind seeing it
[13:03] <juxta> :D
[13:04] <Darkside> nah
[13:04] <Darkside> hol don, which presentation?
[13:04] <Darkside> the project horus presentation wasn't recorded
[13:04] <juxta> aw :(
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[13:05] <Darkside> we didn't want the video to be leaked
[13:05] <Darkside> we actually succeeded in preventing any pictures from being leaked until wednesday morning
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[13:05] <juxta> I'm keen to hear the final figure :D
[13:05] <Darkside> http://imgur.com/a/ABRvp
[13:06] <Darkside> we got linus's signature :D
[13:06] <Laurenceb> tux looks unhappy
[13:06] <Darkside> :P
[13:06] <juxta> he should be happy
[13:07] <Darkside> he sold for about $20000
[13:07] <juxta> (with proceeds going to charity)
[13:07] <Darkside> well, i think thats the total prize pool
[13:07] <Darkside> donation pool i mean
[13:07] <Darkside> the winning 'bid' was about $6k i think
[13:07] <juxta> oh right
[13:07] <juxta> so it's all cumulative?
[13:07] <Darkside> but all bids are donations
[13:07] <Darkside> oh yes
[13:08] <juxta> ahh
[13:08] <juxta> hehe
[13:08] <juxta> :)
[13:08] <Darkside> there were donations all around
[13:08] <Darkside> they picked up a LOT when the video was playing :D
[13:10] <Darkside> the cumulative total was $5k before the video, and about $16k after
[13:10] <fsphil> oh sweet
[13:10] <fsphil> congratulations :D
[13:12] <juxta> Darkside, can you name all the signatures?
[13:13] <Darkside> http://conf.linux.org.au/programme/keynotes
[13:13] <Darkside> those guys, + linus torvalds
[13:13] <daviddjv> fsphil by asap i need to launch within 2 weeks
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[13:23] <eroomde> daviddjv: hello, my name is Ed Moore and I oversee one of the launch sites in Cambridge
[13:24] <eroomde> Please can you give me some more information about your launch?
[13:26] <daviddjv> hello, it will be with a 350g balloon, payload will consist of just a camera and a GSM for recovery, cheap is the main aim here. It is for entry into a competition for nvidia, along the lines of most interesting place to get their logo photographed, although needs to be in before feb 25th
[13:27] <daviddjv> which is why i need a site with permission granted as there is not time for me to apply for permission for a site
[13:27] <eroomde> OK. Are you familiar with our flight prediction tools and the fact that there are not a huge number of good wind days at this time of year?
[13:28] <eroomde> If you're willing to accept that one cannot guarantee a successful land-based recovery, I think we might be able to help you out
[13:28] <daviddjv> yeah, I have been using the CUSF predictor and am willing to take the risk off the loss
[13:30] <eroomde> ok. You'll have to bring helium
[13:30] <eroomde> and generally be cognizent of that fact that we're all students and this is a free time hobby - we'll do our best but we can promise nothing!
[13:31] <eroomde> daviddjv: I need to go now, but feel free to contact me further by email - eddymoore at gmail
[13:32] <daviddjv> thanks eroomde, great help
[13:32] <eroomde> no problem
[13:32] <eroomde> bbl
[13:32] <daviddjv> bb
[13:41] Action: NigeyS throws a lassen iq out the window
[13:43] <jgrahamc> Oops. What happened to it?
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[13:43] <fsphil> lassen iq magically floats away....
[13:43] <NigeyS> lol its being a pain
[13:43] <NigeyS> 1 sat and its been outside for 2 hours now lol
[13:43] <jgrahamc> What antenna are you using?
[13:43] <fsphil> I've got a gps panel antenna here, might sent it over for you to try it
[13:44] <NigeyS> jgrahamc, let me get the link
[13:44] <NigeyS> fsphil, ill send u the module
[13:44] <NigeyS> stops me getting the urge to throw it out
[13:44] <jgrahamc> I haven't actually dealt with the Lassen on my project yet. It's the final part of the electronics.
[13:45] <Darkside> eew lassen
[13:45] <NigeyS> http://www.dpie.com/gps/antenna.html
[13:45] <NigeyS> bottom 1
[13:45] <NigeyS> Darkside, its my biggest regret lol !
[13:45] <Darkside> was trying to get terry's old payload to get lock
[13:45] <Darkside> that had a lassen IQ
[13:45] <Darkside> i had it sitting OUTSIDE for 20 minutes
[13:45] <Darkside> and nothing
[13:46] <Darkside> go turn on my uBlox, 30 seconds later i have lock
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[13:46] <NigeyS> lol this 1 has been very odd, got no sats in the house, went outside, got 6 within 10 mins, now its not getting more than 1 after 2 hours
[13:46] <Darkside> hha
[13:46] <NigeyS> got a locosys for the pico launch and within 5 seconds had 10 sats!
[13:47] <fsphil> This is the antenna I have: http://www.sparkfun.com/products/177
[13:47] <Darkside> i've been told venus chipsets are awesome
[13:47] <fsphil> I haven't got around to trying it yet, was for a boat project that hasn't progressed much
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[13:47] <Darkside> well, its what bdale uses on his rockets
[13:47] <fsphil> ooh it's the venus gps I have for the boat project too :)
[13:48] <fsphil> doesn't work at high altitude though
[13:48] <Darkside> heh
[13:48] <Darkside> oh?
[13:48] <NigeyS> no, its 18k limited :/
[13:48] <Darkside> ahh
[13:48] <fsphil> shame too cause it's really light
[13:48] <Darkside> yer
[13:49] <fsphil> though with what I've learned since doing the HAB'ing, I think I'll put a second receiver in there
[13:51] <NigeyS> hehe wise idea
[13:51] <jgrahamc> I have two completely separate systems in mine.
[13:52] <jgrahamc> I'd like to get it back!
[13:52] <fsphil> yes, getting it back is always good *hmpf*
[13:52] <NigeyS> aww now now phil :/
[13:52] <fsphil> lol
[13:53] <NigeyS> if u want it guaraneed to come back ..
[13:53] <NigeyS> tether it :p
[13:53] <fsphil> or don't launch it when it's predicted to go over 300km :)
[13:53] <NigeyS> yeah, or anywhere near the big pond!
[13:53] <fsphil> actually I'd love to do that again! but with a better recovery plan
[13:54] <juxta> Darkside, I'm off to bed, let me know if there's any word re the final figure :)
[13:55] <jgrahamc> Ah. I'm missing something because I don't know all the people. What lost balloon are you talking about?
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[13:56] <fsphil> mine, landed somewhere in the yorkshire dales
[13:56] <NigeyS> prolly still there, up a tree or something :(
[13:56] <fsphil> didn't really have a plan to recover it :)
[13:57] <jgrahamc> Ah Hadie. Hadn't made the connection.
[13:57] <NigeyS> afternoon SpeedEvil
[13:57] <fsphil> The next one will be done with calmer winds
[13:58] <fsphil> oooh tomorrow would be ideal: http://habhub.org/predict/#!/uuid=1457616c2e5e2f5065658e1b59d4937afc2fecaa
[13:59] <NigeyS> oo thats a nice path
[13:59] <fsphil> just a short drive to recover it
[14:01] <fsphil> all open fields too
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[14:02] <NigeyS> bah
[14:02] <NigeyS> http://habhub.org/predict/#!/uuid=6715d69e631ca69cbae7db289528d5637933ab6c
[14:02] <NigeyS> glad im not launching tomorrow!
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[14:03] <fsphil> splash!
[14:04] <NigeyS> lol yup
[14:05] <SpeedEvil> NigeyS: aGYENYREY
[14:06] <SpeedEvil> Afternoon, even.
[14:06] <NigeyS> lol hey dude
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[14:25] <griffonbot> @darksidelemm: Some of the Project Horus team @ LCA2011 Penguin Dinner http://i.imgur.com/bHo5g.jpg #lca2011 #projecthorus #arhab [http://twitter.com/darksidelemm/status/30632534807150592]
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[14:29] <griffonbot> @piawaugh: RT @darksidelemm: Some of the Project Horus team @ LCA2011 Penguin Dinner http://i.imgur.com/bHo5g.jpg #lca2011 #projecthorus #arhab [http://twitter.com/piawaugh/status/30633487950151680]
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[14:32] <griffonbot> @dbph: RT @darksidelemm: Some of the Project Horus team @ LCA2011 Penguin Dinner http://i.imgur.com/bHo5g.jpg #lca2011 #projecthorus #arhab [http://twitter.com/dbph/status/30634304635670528]
[14:32] <Darkside> uh oh
[14:32] <Darkside> retweets
[14:32] <fsphil> lol
[14:32] <Darkside> lol
[14:33] <Darkside> anyway, nn
[14:34] <fsphil> night Darkside
[14:44] <NigeyS> bacon sandwich anyone? :D
[14:52] <fsphil> ooooh
[14:53] <NigeyS> to late none left :P
[14:58] <fsphil> someone brought in a box of wham bars here
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[14:58] <fsphil> all I can hear are people chewing
[14:58] <NigeyS> :o aint had 1 of those in years!!
[14:59] <fsphil> me either -- forgot how much they stick to teeth
[15:01] <NigeyS> lol like superglue!
[15:01] <NigeyS> watching a prog atm .. jo kittinger's balloon flight to 100,000ft
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[15:04] <fsphil> I think I seen a bit of that a few nights ago -- bbc four?
[15:04] <NigeyS> yeps
[15:04] <fsphil> I seen the bit where he's describing there being no wind after he jumped
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[15:04] <fsphil> weird stuff -- that took balls
[15:05] <NigeyS> yeah how freaky would that be, totally silent for 4 minutes :|
[15:06] <NigeyS> hey Zuph
[15:07] <Zuph> Hey NigeyS
[15:09] <NigeyS> jgrahamc, what was that link to your blog ?
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[15:13] <jgrahamc> http://blog.jgc.org/search/label/gaga
[15:13] <NigeyS> tnx :)
[15:16] <jgrahamc> I also added it to the UKHAS list of projects on the Wiki.
[15:17] <NigeyS> awsome, very well documented :)
[15:18] <jgrahamc> Thanks. I've been trying to document what I'm doing so that others can learn from it. I've learnt so much by reading about other people's projects...
[15:22] <NigeyS> same here, i'd be totally confuddled without the people here
[15:23] <jgrahamc> I need to hang out here more... what's your project?
[15:38] <NigeyS> ATS 1
[15:39] <jgrahamc> What's the plan for the SD card?
[15:41] <NigeyS> at the mo, i have to order a new shield, the last 1 was faulty
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[16:48] <shenki> Darkside: that photo is awesome :D
[16:54] <griffonbot> @shenki: RT @darksidelemm: Some of the Project Horus team @ LCA2011 Penguin Dinner http://i.imgur.com/bHo5g.jpg #lca2011 #projecthorus #arhab [http://twitter.com/shenki/status/30670001409105920]
[16:57] <shenki> stalkerbot.
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[17:10] <NigeyS> james!
[17:10] <jcoxon> hello
[17:11] <NigeyS> i'm afraid you wont be getting atlas back in the post
[17:11] <jcoxon> working?
[17:11] <jgrahamc> Hey jcoxon. What's the little adjustment on the NTX2 under the sticker?
[17:11] <jgrahamc> I can't find it documented anywhere.
[17:12] <NigeyS> jcoxon, like a charm, the gf forgot to post it so i opened it up, and got the sod working :D
[17:12] <jcoxon> jgrahamc, its on the wiki - search of ntx2
[17:12] <jcoxon> haha
[17:12] <jcoxon> and the issue?
[17:12] <NigeyS> a windows setting on the com port
[17:13] <NigeyS> had to check a box to make sure it sent rst on close
[17:13] <jgrahamc> Thanks.
[17:13] <NigeyS> checked it, and bingo .. so hmm.. works lol
[17:13] <jcoxon> excellent
[17:13] <NigeyS> yup, just fiddling with the ntx2, 515 shift :/
[17:19] <NigeyS> jgrahamc, http://ukhas.org.uk/guides:radio_modules
[17:19] <jgrahamc> Yeah, I just read it.
[17:19] <jgrahamc> Thanks, very much.
[17:19] <NigeyS> no probs :)
[17:20] <NigeyS> jcoxon, is it worth trying to fine tune the ntx2 before ive added the new vreg? isnt it going to be slightly off with the increase in voltage ?
[17:21] <jonsowman> the ntx2 has a vreg onboard
[17:21] <NigeyS> yeah jon but atm its not even getting 3.3 .. the entire pcb is only getting 2.96
[17:21] <jonsowman> ah I see
[17:21] <jonsowman> in which case it might change
[17:21] <NigeyS> ldo vregs on the way :D
[17:21] <jonsowman> I can't remember what Vdrop of the onboard reg is
[17:21] <jonsowman> I used to know
[17:21] <jonsowman> datasheet perhaps
[17:22] <NigeyS> i'll hunt it down
[17:22] <NigeyS> how's you anyway jon ?
[17:23] <jonsowman> fine thanks - busy! yourself?
[17:23] <NigeyS> better today, had cold all week :(
[17:23] <NigeyS> ya know that horid grotty stuffed up feeling in the head and ears.. yuck.. hate it!
[17:24] <jgrahamc> Signing off. Talk to you guys later.
[17:24] <jonsowman> see you jgrahamc
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[18:13] <fsphil> jcoxon, I bet you're glad to be rid of those gps modules :)
[18:14] <jcoxon> yes!
[18:14] <jcoxon> hehe - pico payload container is a loo roll
[18:14] <jcoxon> fits inside nicely
[18:16] <NigeyS> loo roll?
[18:16] <jcoxon> the cardboard inside of a toilet roll
[18:16] <NigeyS> lol well. if it does the job!
[18:18] <Dan-K2VOL1> NigeyS where are you from
[18:18] <fsphil> I used to make them into rockets ;)
[18:18] <NigeyS> lol
[18:18] <NigeyS> south wales dan
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[18:19] <NigeyS> hmm what are those connectors called that you find in pc cases, that connect the power led and hdd led to the motherboard ?
[18:21] <fsphil> headers
[18:21] <fsphil> terminals
[18:21] <fsphil> crimp terminals
[18:21] <jcoxon> 2.54mm
[18:21] <NigeyS> thats the 1's, thankoo
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[18:32] <W0OTM> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160538271937#ht_500wt_1156
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[18:37] <NigeyS> W}_\|s_{__oPICOCHU Radio TestPICOCHU Radio Test
[18:37] <NigeyS> yeeha
[18:37] <NigeyS> ntx2 dont like the cold do it, drifted frequency to 434.653.2
[18:37] <jcoxon> yup
[18:38] <jcoxon> it'll drift quite a bit
[18:38] <NigeyS> bang on 425 shift now its got the gps hooked up to
[18:40] <NigeyS> www.nigey.co.uk/capture.wav anyone else able to decode it ?
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[18:42] <fsphil> working well
[18:43] <NigeyS> awsome, its on the window sill outside, pretty nippy too!
[18:44] <NigeyS> not sure how to do an antennae for it though, doesnt it have to be 1/4 wave so 16.4cm long? :|
[18:49] <fsphil> ideally
[18:50] <NigeyS> gonna be a bit hard on a pico :|
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[18:55] <fsphil> nah, just hang it out the bottom
[18:55] <jcoxon> yeah just use lightweight wire
[18:56] <NigeyS> could steal some copper from my yagi aerial, 10m is a bit long ..
[18:57] <jcoxon> just use normal wire
[18:58] <NigeyS> oh, thought copper was meant to be better, but if normal wire is fine, i have lots
[18:58] <jcoxon> i just use normal wire
[18:58] <griffonbot> Received email: James Coxon <jacoxon@gmail.com> "[UKHAS] Pico Launch 2"
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[18:59] <griffonbot> @jamescoxon: PicoAtlas Launch 2 - Sunday, Norfolk, SW flight past, on 434.072Mhz, pico in dl-fldigi, track on http://spacenear.us/tracker/ #atlasballoon [http://twitter.com/jamescoxon/status/30701537307131905]
[18:59] <SpeedEvil> umm - most wire is copper
[19:00] <SpeedEvil> or do you mean steel
[19:00] <NigeyS> well ive got a roll of jumper wire, the more flexible stuff ...
[19:01] <SpeedEvil> a straw will keep it rigid
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[19:04] <NigeyS> i hope its not offended by pink straws, its all i ve lol
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[19:47] <fsphil> lovely: http://www.lunarnumbat.org/
[19:48] <jonsowman> just what I'd always hoped for really
[19:48] <jonsowman> :\
[19:49] <fsphil> skipping is a pretty efficient way to move about on the moon
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[19:51] <jonsowman> true
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[20:00] <NigeyS> jonsowman
[20:00] <NigeyS> we may have a guest tracker for 1 of the higher altitude launches :D
[20:00] <jonsowman> oh?
[20:01] <NigeyS> a friend of mine, professor at manchester ac was interested
[20:02] <jonsowman> oh, nice
[20:02] <NigeyS> be nice to see a reciever on the spacenear tracker from jodrell bank i think :)
[20:02] <jonsowman> that'd be pretty cool
[20:03] <NigeyS> he was going to check if he can set 1 of the smaller dishes up for it, we dont get tp use the mega dish as i call it :(
[20:03] <jonsowman> still, that's pretty awesome
[20:04] <fsphil> the big dish is probably too big :)
[20:06] <gm8oti> Anyone on here involved in the Hadie launch in March?
[20:06] <fsphil> hi gm8oti, just me at the moment
[20:07] <NigeyS> fsphil, they can still pick up the voyager probe on that thing!
[20:08] <gm8oti> hi - have only just discovered this game, followed the 17 Jan launch which looked good fun. Hope to try tracking in March from south west Scotland.
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[20:09] <fsphil> fantastic -- you're in the perfect spot for tracking hadie too
[20:09] <NigeyS> oo he is too!
[20:10] <gm8oti> fsphil - yes if the wind is right ;-) - am normally based in Edinburgh but we go down there often
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[20:11] <fsphil> I'd appreciate any help tracking :) there'll be live images on that flight too hopefully
[20:12] <fsphil> well, by live I mean one every 5 minutes :)
[20:13] <gm8oti> fsphil - will do if poss; don't normally have web there (except on phone) but will investigate a connection for the computer - I've looked up dl-fldigi
[20:15] <fsphil> what kind of setup do you have?
[20:17] <gm8oti> fsphil - I mostly work portable (amateur radio) and use an FT-817 as the main rig. My interest is in moving up to the microwave bands - have built gear for 23cm and am moving up! Antenna for 70cm can be either 6 or 12 ele Yagi
[20:18] <fsphil> you'll have no problems with this then
[20:18] <gm8oti> fsphil - I have used the vanilla version of fldigi for digital comms
[20:18] <fsphil> assuming I get the antenna right this time :)
[20:19] <fsphil> The microwaves bands are pretty fascinating -- well outta my range atm but hopefully soon
[20:19] <gm8oti> fsphil - how far in advance will you know / guess launch day?
[20:20] <fsphil> a few days normally, depends in the predictions and weather mostly and they don't get accurate enough until then
[20:21] <gm8oti> yes, the forecasts are not wonderful. Hope to have a go anyway.
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[20:23] <fsphil> the biggest risk is a water landing
[20:24] <NigeyS> fish food!
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[20:29] <fsphil> gm8oti, launch announcements are usually made on the ukhas mailing list -- http://groups.google.com/group/ukhas?hl=en
[20:29] <fsphil> there might be a few others before hadie launches
[20:30] <jonsowman> apex around easter time with any luck
[20:30] <jonsowman> with a fully working pair of geiger muller tubes too, fingers crossed
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[20:30] <NigeyS> ATS should be ready for end of march to
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[20:36] <fsphil> mmm easter eggs
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[20:47] <chembrow> evening all
[20:47] <chembrow> I've got a question about driving the NTX2
[20:47] <jonsowman> fire away
[20:47] <chembrow> does it matter what the input voltage or, or is the shift more important
[20:48] <jonsowman> someone in the middle of the voltage range is best
[20:48] <chembrow> I'm using a pair of potential dividers
[20:48] <jonsowman> there is an onboard 2.8Vreg
[20:48] <jonsowman> so 2.8V will give max +ve deviation
[20:48] <chembrow> which give 0.9 and 1.2
[20:48] <jonsowman> that is fine
[20:48] <jonsowman> you want the signal in midband ideally
[20:48] <chembrow> thanks.
[20:48] <jonsowman> which your voltages are approx correct for
[20:48] <jonsowman> :)
[20:49] <chembrow> wasn't sure, as I've seen a couple recently, such as John Graham-Cummings, which use closer to 2v
[20:49] <gm8oti> fsphil - thanks, will keep watching. Will follow PicoAtlas on the web - good luck with that. (Had gone away as circuit board was getting overexposed!)
[20:49] <jonsowman> chembrow: that's also fine
[20:49] <jonsowman> as long as you're away from the band edges it'll be fine
[20:50] <jonsowman> to be honest it's even fine on the band edges, it's just you then risk overmodulating into and/or picking up signals from an adjacent band
[20:50] <chembrow> OK. as long as I'm clear I don't have to worry about changing it
[20:50] <jonsowman> s/band/channel/
[20:50] <jonsowman> chembrow: nope, you're fine with that
[20:51] <chembrow> great. In that case, I've finished my main FC, just need the gpsbee to finish it up :)
[20:51] <chembrow> aside from some serious long-term testing
[20:51] <jonsowman> definitely
[20:52] <chembrow> stick it in the freezer for a while
[20:53] <chembrow> hoping to launch around easter time
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[20:54] <natrium42> o/
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[21:32] <W0OTM> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160538271937#ht_500wt_1156
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[22:17] <NigeyS> hmm how very odd :/
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[22:36] <griffonbot> Received email: "Graham Shirville" <g.shirville@btinternet.com> "Re: [UKHAS] Pico Launch 2"
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[22:47] <griffonbot> Received email: Chris Hembrow <chris.hembrow@pixelseventy2.net> "Re: [UKHAS] Pico Launch 2"
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[23:04] <griffonbot> Received email: James Coxon <jacoxon@gmail.com> "Re: [UKHAS] Pico Launch 2"
[23:24] <griffonbot> Received email: Nigel Smart <nigel@nigey.co.uk> "Re: [UKHAS] Pico Launch 2"
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[00:00] --- Fri Jan 28 2011