highaltitude.log.20090320

[00:01] <Laurenceb> will anyone have a table tomorrow
[00:01] <Laurenceb> to setup on
[00:03] <natrium42> sYx66, they didn't arrive yet
[00:03] <natrium42> it's 250 of them
[00:03] <sYx66> ah i thought it was the package you got
[00:03] <natrium42> sYx66, i emailed our farmer friends asking to launch from their property on saturday
[00:04] <natrium42> oh, that package is a few products for the store
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[00:07] <Laurenceb> you mean 10^2.397940009
[00:08] <natrium42> lol
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[00:09] <natrium42> !windowslive 10^2.397940009
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[00:11] <Laurenceb> use octave
[00:13] <natrium42> !octave 10^2.397940009
[00:13] <natrium42> apparently the bot is lame
[00:13] <natrium42> :P
[00:13] Action: natrium42 hides from jcoxon
[00:16] <jcoxon> !kill natrium42
[00:17] <natrium42> hehe
[00:19] <natrium42> O_O
[00:19] <jcoxon> oi
[00:19] Action: SpeedEvil wakes up
[00:19] <natrium42> is it the horses of apocalypse?
[00:19] <jcoxon> it just emails me
[00:19] <natrium42> what is the devil's emai anyway?
[00:19] <natrium42> *email
[00:20] <natrium42> steveb@microsoft.com?
[00:20] <Laurenceb> satan@hell.com
[00:20] <natrium42> oh that one is just a redirection
[00:21] <Laurenceb> lol you tried?
[00:21] <natrium42> i *set it up*
[00:22] <natrium42> echo steveb@microsoft.com > .forward
[00:25] <SpeedEvil> bat: :)
[00:31] <Laurenceb> ah lovely
[00:32] <Laurenceb> 8.40V
[00:34] Action: shellevil sets alarm for 9:340
[00:35] <jcoxon> shellevil, my antenna is broken
[00:35] <jcoxon> so my radio won't be on
[00:35] <shellevil> oh well
[00:36] <shellevil> how do you break a wire?
[00:36] <jcoxon> no its not my long wire
[00:36] <jcoxon> its my moxon
[00:36] <shellevil> ah
[00:36] <jcoxon> actually i'll fix it tomorrow morning
[00:36] <jcoxon> i've go time
[00:36] <jcoxon> got*
[00:36] <Laurenceb> I've got a moxon as well I'll be taking
[00:37] <Laurenceb> and running the icom with it maybe...
[00:39] <natrium42> :)
[00:40] <natrium42> good luck with the launch Laurenceb
[00:40] <natrium42> hope it goes better than our
[00:40] <Laurenceb> thanks
[00:40] <Laurenceb> should be able to track it online all being well
[00:40] <Laurenceb> i.e. if I can find some wifi
[00:41] <shellevil> so would it be helpful for me to be awake at 10?
[00:43] Action: shellevil is AFK - Pork Pie
[00:44] <Laurenceb> I'm thinking maybe I'll just carry the rogallo... its easier than the box I've assembled...
[00:44] <Laurenceb> not sure what will happen on the tube
[00:45] <natrium42> weird looks.
[00:45] <shellevil> box is prolly a good idea.
[00:45] <natrium42> not that it's bad :D
[00:46] <Laurenceb> maybe if I add a handle
[00:48] <Laurenceb> I know I'll duck tape it to my suitcase
[00:48] <natrium42> try a kalman filter
[00:48] <natrium42> oh wait, it doesn't solve *all* problems
[00:48] <natrium42> :)
[00:48] <Laurenceb> yeah... like wheres my stapler
[00:49] <natrium42> http://www.yunasville.com/img/102005/milton.jpg
[00:51] <Laurenceb> hehe my box says wingballs on the side
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[00:59] <Laurenceb> ox is assembled
[01:00] <Laurenceb> *box
[01:00] <Laurenceb> My Name is Boxxy
[01:10] <natrium42> hehe
[01:11] <natrium42> g'nite
[01:16] <Laurenceb> cya
[01:16] <Laurenceb> - I'm not going to bed yet :-/
[01:17] <Laurenceb> need to finish packing kit
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[01:46] <Laurenceb> hello
[01:46] <kc0wys> hi
[01:48] <kc0wys> what's new?
[01:48] <Laurenceb> launch 2morrow
[01:48] <kc0wys> oh who?
[01:48] <Laurenceb> me and hallam/edmoore/fergus
[01:49] <kc0wys> ah nice, is there a page on the web about it?
[01:50] <Laurenceb> theres a bit of info on my project
[01:50] <Laurenceb> the other payload is hallam's masters project
[01:53] <Laurenceb> I'm launching a glider
[01:53] <Laurenceb> just doing the final forecast checks... looks like a 5Km release
[02:41] <kc0wys> 5km altitude?
[02:41] <kc0wys> pretty low...
[02:49] <Laurenceb> yeah
[02:49] <Laurenceb> it gets too windy higher up so I wouldnt reach the target
[02:50] <Laurenceb> grr I've broken the I2C eeprom
[02:51] <Laurenceb> hmm... this was always too comlicated
[03:00] <Laurenceb> its going to be a jcoxon style launch :P
[03:28] <kc0wys> lol what's that
[03:28] <kc0wys> simplicity?
[03:28] <Laurenceb> where you stay up all night trying to fix the code
[03:29] <kc0wys> oh haha
[03:30] <kc0wys> i haven't messed with I2C yet
[03:30] <kc0wys> i went with SPI everything on my current project
[03:30] <Laurenceb> http://wiki.ukhas.org.uk/code:i2c_eeprom
[03:30] <kc0wys> whats the target mcu?
[03:31] <Laurenceb> avr
[03:31] <kc0wys> oh ok
[03:32] <kc0wys> do you guys have a radio link?
[03:32] <Laurenceb> yes
[03:34] <kc0wys> do you have error correction or anything?
[03:34] <kc0wys> i'm curious because i'm writing the code for my radio link
[03:34] <Laurenceb> yes, FEC and interleaving
[03:34] <Laurenceb> then CRC on the packets
[03:35] <Laurenceb> I'm using MFSK
[03:35] <Laurenceb> with fldigi
[03:35] <Laurenceb> to handle the FEC and interleaving
[03:35] <Laurenceb> then a php application to check the packets
[03:37] <kc0wys> i'm not familiar with fldigi, is that a protocol?
[03:39] <Laurenceb> its a program
[03:41] <kc0wys> ok
[04:10] <kc0wys> good luck on the launch tomorrow
[04:10] <kc0wys> i gotta go, cya
[04:12] <Laurenceb> cya
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[07:44] <jcoxon> morning
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[08:20] <jcoxon> morning rjharrison
[08:27] <rjharrison> hi jcoxon
[08:27] <rjharrison> I'm just printing some stuff out for the meeting today and tomorrow :(
[08:27] <rjharrison> Any news on a CUSF launch
[08:28] <jcoxon> nothing but i'm all set
[08:28] <jcoxon> made a new antenna this morning
[08:28] <jcoxon> another moxon but alot better
[08:28] <rjharrison> cool
[08:28] <rjharrison> Can't chat really I need to get off I'm afraid
[08:28] <rjharrison> Hope the tracking goes well
[08:28] <rjharrison> I'll reset the map
[08:29] <jcoxon> thanks
[08:29] <jcoxon> i doubt our string will match
[08:30] <rjharrison> ahh the cusf string
[08:30] <rjharrison> I wonder if they have changed it
[08:33] <jcoxon> i'm not sure
[08:33] <jcoxon> could text and find out
[08:34] <rjharrison> I have set the settings to the last badger launch
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[08:51] <Tigga> CUSF launch this morning may be slightly delayed from the 10am time we were aiming at
[08:51] <Tigga> looking more like 11am at the moment...
[08:52] <jcoxon> Tigga, thanks
[08:52] <jcoxon> any chance i could have the telem string format
[08:52] <jcoxon> to configure the test online tracker
[08:53] <Tigga> sorry - I've no idea. Not in the lab at the moment - will text fnoble.
[08:53] <jcoxon> thanks
[08:53] <jcoxon> i texted ed earlier
[08:53] <Tigga> he's asleep I think
[08:53] <Tigga> not sure
[08:54] <jcoxon> oops
[08:54] <jcoxon> oh well
[08:54] <jcoxon> no worries
[09:03] Action: shellevil wayns
[09:03] <shellevil> yawns
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[09:08] <jcoxon> morning shellevil
[09:16] <shellevil> morning.
[09:16] Action: shellevil runs bath.
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[09:21] Nick change: Laurenceb -> Laurenceb_church
[09:22] Nick change: Laurenceb_church -> Lb_churchill
[09:22] <Lb_churchill> hello
[09:22] <Lb_churchill> we are assembling in Churchill bar
[09:22] <jcoxon> hey Lb_churchill
[09:23] <jcoxon> hows it going?
[09:23] <Lb_churchill> edmoore has gone to bug henry and fergus out of their dungeon
[09:23] <Lb_churchill> *dig
[09:23] <Lb_churchill> Steve should be here soon, Im on my own atm
[09:24] <Lb_churchill> this is nice: food, drink, wifi
[09:24] <Lb_churchill> I could live here
[09:25] <jcoxon> Lb_churchill, is it badger that is flying today?
[09:26] <Lb_churchill> henrys project
[09:26] <Lb_churchill> its a blackfin board with camera
[09:26] <Lb_churchill> with an LPC2148 daughterboard based on badge
[09:26] <Lb_churchill> logging data to SD
[09:27] <Lb_churchill> its his master project - its going to work as a startracker
[09:27] <jcoxon> oh cool
[09:27] <jcoxon> i've got my radio set up
[09:27] <jcoxon> do you know what freq they are on?
[09:29] <Lb_churchill> nope
[09:29] <Lb_churchill> guessing 434.650 or whatever it is
[09:30] <Lb_churchill> I'm on 434.075 with mfsk64
[09:31] <jcoxon> whats you telem string?
[09:32] <Lb_churchill> UKHAS-,0.894368,-0.010352,95.6,0,6.7,18.3,C9
[09:32] <Lb_churchill> the UKHAS- means landed
[09:32] <Lb_churchill> UKHAS> ascendsing
[09:33] <jcoxon> hmmmm
[09:33] <Lb_churchill> UKHAS< descendsing
[09:33] <jcoxon> i've got to go
[09:33] <jcoxon> good luck with the launch
[09:33] <Lb_churchill> ok
[09:33] <Lb_churchill> thanks
[09:33] <jcoxon> i doubt i'll log anything
[09:33] <jcoxon> as different strings
[09:33] <Lb_churchill> then latitude, logitude, altitude, number of sats, battery voltage, temperature, checksum
[09:34] <Lb_churchill> I've got my php logger running
[09:34] <Lb_churchill> you could try running it
[09:34] <jcoxon> bbl
[09:34] <Lb_churchill> - on the iwki
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[09:34] <Lb_churchill> you'll need to remove the post bit to natriums tracker
[09:34] <Tigga> Lb_churchill: last time I was in the lab (about an hour ago now) it was looking like things were going to be a tad late
[09:35] <Lb_churchill> yeah I know
[09:35] <Lb_churchill> doesnt matter for me
[09:35] <Lb_churchill> hmm... maybe I'll get some sleep
[09:35] <Tigga> I just had an involentary nap
[09:36] <Tigga> meant to be finishing off this essay before launch....
[09:36] <Tigga> anybody else there?
[09:37] <Lb_churchill> nope just me atm
[09:37] <Lb_churchill> brb... snoozing/getting coffee
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[09:51] <Lb_churchill> hello
[09:52] Action: Lb_churchill says hello from the other side of the table
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[09:53] <fnoble_lab> hi
[09:54] <Tigga> hi fergus
[09:59] Action: SpeedEvil exits bath like a dripping adonis.
[09:59] <SpeedEvil> (one foot at a time)
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[10:14] Action: SpeedEvil has jcoxon's radio
[10:14] <SpeedEvil> and can tune it - nothing on waterfall
[10:14] <SpeedEvil> and no data
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[10:16] <SpeedEvil> There should be bright red/green blurry band in the spectrum AIUI?
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[10:39] <Lb_churchill> SpeedEvil; I'm mfsk64
[10:39] <Lb_churchill> google it
[10:39] <Lb_churchill> hallam and fergus are dominoex I think
[10:39] <Lb_churchill> I'm on 434.075
[10:39] <Lb_churchill> I'm still in the bar at the moment....
[10:40] <Lb_churchill> just run some tests on the radio and reassembled the wings - they were unbolted for train travel
[10:40] <Lb_churchill> maybe I should get drunk...
[10:40] <shellevil> ok
[10:42] <Tigga> is the bar serving alcohol at this time?
[10:42] <Lb_churchill> dunno
[10:42] <Lb_churchill> I was joking
[10:43] <Tigga> oh
[10:43] <Lb_churchill> hmm wonder if I can rx in here
[10:43] <Tigga> well in that case I'll continue fixing the horrific essay I wrote yesterday
[10:43] <Lb_churchill> I have a moxon and a vice
[10:43] <Lb_churchill> roof appears to be reinforced concrete like the rest of churchill
[10:43] <Lb_churchill> so probably a bad plan
[10:44] <Lb_churchill> http://en.wikipedia.org/wiki/Churchill_College,_Cambridge
[10:48] <Lb_churchill> hmm everyone has vaanished
[10:49] Action: SpeedEvil is still here - but doing nothing productive
[10:56] <Tigga> Lb_churchill: you heard anything yet about launch times?
[10:57] <Tigga> might pop down to the lab again.... essay mk2 is finished
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[11:33] <Lb_churchill> back
[11:33] <Lb_churchill> ok, heres the plan, I launch first with a 200 or 500
[11:33] <Lb_churchill> then henry
[11:34] <Lb_churchill> we are setting up over the far side of churchill, so no wifi, sorry
[11:34] <Lb_churchill> NOVA10 air dampers are being assembled atm
[11:34] <Lb_churchill> I'm about to move all my kit up, we have some tables, so I'll have to say bye
[11:35] <Lb_churchill> expect rogallo in ~1 hour and NOVA10 is 2 to 3 hours
[11:36] <Lb_churchill> cya gies
[11:40] <shellevil> wave
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[11:45] <jcoxon> Launch yet?
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[12:29] <rjharrison> did cusf launch?
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[13:25] <rjharrison> .
[13:25] <rjharrison> Any news on cusf launch?
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[15:54] <jcoxon> Hey guys
[15:54] <jcoxon> Whats the status?
[15:59] <jcoxon> Anyone?
[16:15] <natrium42> jcoxon, wb8elk stream is live btw
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[16:19] <M6JCX> Oops
[16:22] <natrium42> M6JCX, watching the wb8elk webcast?
[16:25] <M6JCX> Oh i'm no my phone
[16:26] <M6JCX> On
[16:26] <M6JCX> Just wondering about the uk launches
[16:26] <M6JCX> Will try and call ed in a bit.
[16:27] <M6JCX> All set for tomorrow?
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[16:35] <SpeedEvil> wb8elk ?
[16:36] <natrium42> http://www.batc.tv/ch_live.php
[16:36] <natrium42> select wb8elk
[16:37] <SpeedEvil> Sorry - I feel like I'm experiencing hte web through treacle today
[16:38] <SpeedEvil> My connection is limited to 60-120K or so
[16:38] <natrium42> ah
[16:38] <natrium42> did you try unclogging your tubes?
[16:38] <shellevil> Aaand - power cut
[16:38] <shellevil> oh
[16:39] <shellevil> I hadn't plugged my desktop monitor into UPS, thought desktop had gone down
[16:39] Action: shellevil wonders if his DSL modem has cycled
[16:39] <SpeedEvil> getss not
[16:42] <SpeedEvil> and wb8elk doesn't appear in the list
[16:43] <natrium42> hmm, it should
[16:43] <SpeedEvil> I get a list starting with gb3gg
[16:44] <natrium42> he's somewhere at the bottom
[16:45] <natrium42> they are about to launch, went outside
[16:45] <natrium42> camera exposure is off, so it's all white
[16:45] <SpeedEvil> I get 3 'w' - w5atn, w6cx, w6atn
[16:46] <natrium42> it's not alphabetical order
[16:46] <natrium42> http://www.batc.tv/ch_live.php?ch=5
[16:46] <natrium42> that's the correct link, sorry
[16:46] <natrium42> :)
[16:46] <SpeedEvil> I know it's not - just I see no other w's - scrolling down
[16:47] <natrium42> you need the ch=5 at the end, apparently
[16:47] <SpeedEvil> k
[16:47] <SpeedEvil> aha
[16:48] <natrium42> camera was fine in the hangar
[16:48] <natrium42> but now...
[16:48] <SpeedEvil> Still loading
[16:49] <SpeedEvil> I get an almost whited out pic
[16:49] Action: SpeedEvil passes natrium42 some sunglasses
[16:49] <natrium42> hehe
[16:49] Action: SpeedEvil has actually done that
[16:49] <natrium42> put sunglasses on camera?
[16:49] <SpeedEvil> 3 levels of sunglass
[16:49] <SpeedEvil> for a webcam outside
[16:50] <natrium42> lol
[16:50] <SpeedEvil> chopped up a lens
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[16:53] <natrium42> http://aprs.fi/?call=WB8ELK-9&mt=m&z=11&timerange=3600
[16:56] <natrium42> that's the chase car, i think
[16:56] <natrium42> balloon seems to be http://aprs.fi/?call=WB8ELK-11&mt=m&z=13&timerange=3600
[16:57] <jcoxon> hey natrium42
[16:57] <jcoxon> back home now
[16:58] <SpeedEvil> jcoxon: was fiddling with radio intermittently, with no resultys. Other than 13kbytes/s VNC, and a complex background picture don't go togetehr :)
[16:58] <natrium42> jcoxon, wb
[16:58] <jcoxon> SpeedEvil, cusf didn't launch
[16:58] <natrium42> 1.5km
[16:58] <SpeedEvil> k
[16:58] <jcoxon> and laurence launched but his radio failed the Coxon Kilometre
[16:58] <natrium42> jcoxon, they pulled a HALO3?
[16:58] <natrium42> oh
[16:59] <jcoxon> natrium42, yeah the payload wasn't working
[16:59] <SpeedEvil> has he found his payload?
[16:59] <jcoxon> last i heard they were getting near to it but were fox hunting it
[17:00] <jcoxon> but i've been busy all day
[17:00] <jcoxon> SpeedEvil, only get 13kb/s vnc?
[17:00] <SpeedEvil> natrium42: direct links don't seem to work - at least for me - you need to enter wb8..11 into the search box
[17:00] <SpeedEvil> jcoxon: kbytes
[17:00] <natrium42> SpeedEvil, oh, okay
[17:00] <natrium42> 2489m
[17:01] <SpeedEvil> jcoxon: I have problems with my DSL at the moment
[17:01] <jcoxon> oh right
[17:01] <jcoxon> fair enough
[17:01] <jcoxon> there wasn't any radio to tune to anyway
[17:01] <jcoxon> but thank you for having a go
[17:03] <SpeedEvil> natrium42: what's this payload again?
[17:03] <jcoxon> isn't this an HF payload
[17:03] <natrium42> yeah, no HF :(
[17:03] <jcoxon> no HF?
[17:03] <jcoxon> oh
[17:06] <SpeedEvil> expected burst natrium42 ?
[17:06] <natrium42> SpeedEvil, dunno, sorry
[17:06] <natrium42> i haven
[17:06] <natrium42> 't seen anything but flight announcement
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[17:06] <SpeedEvil> wondering if you had a target
[17:06] <SpeedEvil> ah
[17:06] <SpeedEvil> thought you were something to do with it
[17:06] <jcoxon> oh wait we are talking about tomorrow
[17:07] <edmoore> yo
[17:07] <jcoxon> hey edmoore
[17:07] <SpeedEvil> jcoxon: sorry - /me should probably direct his gibberings more.
[17:08] <natrium42> SpeedEvil, nope
[17:09] <jcoxon> edmoore, anything from laurence?
[17:09] <edmoore> yes
[17:09] <edmoore> they've got it
[17:10] <edmoore> they are heading back to the bar
[17:10] <natrium42> yay
[17:12] <jcoxon> did it work?
[17:16] <natrium42> bill is taking us on a ride
[17:16] <jcoxon> natrium42, whats the plan for tomorrow?
[17:17] <natrium42> got a response from our farmer friends
[17:17] <natrium42> going to launch from their property
[17:17] <natrium42> and there will be wifi
[17:17] <jcoxon> where abouts will that be?
[17:18] <natrium42> lucknow ontario
[17:18] <jcoxon> oh okay
[17:18] <natrium42> going to aim for 1400GMT
[17:20] <natrium42> well, at least i have time to run a few more SPOT tests today
[17:20] <jcoxon> okay cool - i'll be around tomororw :-P
[17:21] <jcoxon> need to speak to rjh as i broke his tracker - oops
[17:22] <natrium42> ok, bill is parking
[17:22] <natrium42> going to take us to the conference room
[17:23] <jcoxon> hehe
[17:23] <jcoxon> you are loving it
[17:23] <natrium42> :)
[17:23] <natrium42> that's what you guys should do on your launches :P
[17:23] Tigga (n=chatzill@pc-232-235-103.magd.cam.ac.uk) joined #highaltitude.
[17:24] <natrium42> would be cool to set up an eeepc with webcam tethered to cell phone
[17:27] <jcoxon> one day :-)
[17:27] <jcoxon> :-( they didn't streetview my road
[17:27] <SpeedEvil> jcoxon: DIY!
[17:27] <SpeedEvil> jcoxon: OSM
[17:28] <SpeedEvil> Though there doesn't seem to be a nice data storage backend
[17:28] <SpeedEvil> flickr doesn't actually say you can't upload 7000 megapixel images/hour, of a car journey, but...
[17:29] <jcoxon> hehe
[17:29] <jcoxon> right i better be off again
[17:29] <SpeedEvil> weave
[17:30] <jcoxon> cya
[17:30] jcoxon (n=jcoxon@host86-145-224-2.range86-145.btcentralplus.com) left irc: "Leaving"
[17:33] Action: SpeedEvil realises a probable reason for google-live, other than the obvious.
[17:34] <SpeedEvil> It - with a little software to read streetnames / point them to humans to read them - and a little smarts to work out stuff like road borders from edges, completely removes their reliance on external map providers.
[17:34] <SpeedEvil> meaning they don't need to licence any data at all for viewers in google-live mapped areas. (in principle, in the future)
[17:39] <natrium42> i should fly a candy bar too
[17:39] <natrium42> it's a great idea
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[18:21] <Laurenceb> greets all
[18:23] <natrium42> hey Laurenceb
[18:24] <natrium42> did it work?
[18:24] <Laurenceb> just got the data off
[18:24] <natrium42> cool
[18:24] <Laurenceb> it did get itself under control
[18:24] <Laurenceb> but we got it back
[18:24] <Laurenceb> it crashed into the top of a tree and we damaged it getting it out
[18:25] <Laurenceb> there was an iaaaue with the radio
[18:25] <Laurenceb> it was outputting junk
[18:25] <natrium42> do you know why yet?
[18:25] <Laurenceb> nope not a clue
[18:25] <Laurenceb> there were some weird things going on... appeared to be too hot inside
[18:26] <Laurenceb> need to investigate later, at the moment I'm investigating the data
[18:27] <SpeedEvil> Laurenceb: :)
[18:27] <SpeedEvil> Laurenceb: (that you got it back, and it has logged data)
[18:33] <Laurenceb> I've solved the problem
[18:33] <Laurenceb> P term was too small and there was a bit of a trim offset
[18:33] <SpeedEvil> so it ran out of rage?
[18:33] <Laurenceb> I'm thinking a filter with an integrated rate term would fix it
[18:33] <SpeedEvil> range.
[18:33] <SpeedEvil> though the above is amusing
[18:33] <Laurenceb> no, it was spiralling
[18:33] <Laurenceb> in a ellipse
[18:33] <SpeedEvil> ah
[18:34] <Laurenceb> you can actually see it in the data, quite nice
[18:34] <SpeedEvil> what was release alt?
[18:34] <Laurenceb> 5Km
[18:35] <Laurenceb> annoyingly I'm missing some of the data from the terminal
[18:35] <Laurenceb> what the best way to do this?
[18:36] <SpeedEvil> ?
[18:36] <Laurenceb> I used GTKterm and the save log command, but there was too much data (several MB)
[18:36] <Laurenceb> and it only saved the last few hundered KB
[18:36] <SpeedEvil> umm
[18:36] <SpeedEvil> refly?
[18:36] <Laurenceb> certainly
[18:37] <SpeedEvil> If you've not got the data, you can't recover it
[18:37] <SpeedEvil> or am I missing something.
[18:37] <Laurenceb> its on the eeprom
[18:37] <Laurenceb> I cant grab it nocely when its pumped over serial
[18:37] <SpeedEvil> oh
[18:37] edmoore (n=edmoore@chu-gw.churchillcambridge.co.uk) left irc:
[18:37] <SpeedEvil> it's a limit of gtkterm?
[18:38] <SpeedEvil> oh - gtkterm is just a terminal, it's not serial is it
[18:38] <SpeedEvil> oldskool way - 'script'
[18:38] <SpeedEvil> then run whatever program you want
[18:38] <SpeedEvil> it logs all output to a file 'typescript' in the current dir
[18:39] <Laurenceb> I'm off to get some foods
[18:39] <SpeedEvil> wave
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[18:43] <SpeedEvil> Interesting - http://www.emcore.com/solar_photovoltaics/terrestrial_concentrator_photovoltaic_arrays
[18:43] <SpeedEvil> 40% efficient solar cells.
[18:43] <SpeedEvil> under the light of a thousand suns.
[18:44] <natrium42> pfft, wake me up when i can buy them
[18:46] <SpeedEvil> natrium42: yeah - there is a notable lack of a webstore.
[18:46] <SpeedEvil> I was actually looking for teeny solar cells - 5mm^2 or so high effivcieny for charging torches via LEDs.
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[19:03] <natrium42> balloon is coming dowm
[19:03] <natrium42> *down
[19:19] Action: SpeedEvil finishes eating a balanced meal.
[19:19] <SpeedEvil> Hot-cross bun, pork pie, chocolate chip muffin.
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[19:49] Laurenceb (n=laurence@chu-gw.churchillcambridge.co.uk) joined #highaltitude.
[19:49] <Laurenceb> hi again
[19:55] <edmoore> hi
[19:55] <edmoore> how's it going Laurenceb?
[19:56] <Laurenceb> Im sitting 3 feet to your right
[19:56] Action: shellevil looks left in alarm.
[19:57] <edmoore> oh yes
[19:59] <natrium42> lol
[20:03] edmoore (n=edmoore@chu-gw.churchillcambridge.co.uk) left irc:
[20:03] <shellevil> http://www.youtube.com/watch?v=D2FX9rviEhw - do androids dream of electric sheep?
[20:04] <Laurenceb> I'm off
[20:04] Laurenceb (n=laurence@chu-gw.churchillcambridge.co.uk) left irc: "The day microsoft make something that doesnt suck is the day they make a vacuum cleaner"
[20:44] <natrium42> looks like it landed in a tree
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[21:41] <natrium42> hey steve
[21:41] <natrium42> going to be around tomorrow for our launch?
[21:44] <G8KHW> On and off - we have some people comming round - what time are u aiming for
[21:48] DRebellion (n=DRebelli@unaffiliated/drebellion) joined #highaltitude.
[21:49] <natrium42> 1400Z
[21:54] <G8KHW> ok i'll try 2 make it
[21:55] <natrium42> k, cool
[21:56] aLeXBrEtOn (n=Alexande@client-80-5-40-149.cht-bng-014.adsl.virginmedia.net) joined #highaltitude.
[21:57] <aLeXBrEtOn> hello everyone
[21:57] <aLeXBrEtOn> just a question regarding weather balloons
[21:57] <natrium42> hi
[21:57] <aLeXBrEtOn> is it really practical and feasible to launch one in order to get photographs?
[21:57] <DRebellion> hey aLeXBrEtOn
[21:57] <SpeedEvil> yup
[21:57] <DRebellion> we were thinking of doing something
[21:57] <DRebellion> inspiration from the spanish guys
[21:58] <SpeedEvil> which exact photo you want may be hard
[21:58] <aLeXBrEtOn> well any will be OK
[21:58] <SpeedEvil> some involve active pointing, which gets complex
[21:58] <DRebellion> what sort of costs would be involved
[21:58] <DRebellion> to get a couple of shots
[21:58] <DRebellion> earth curvature
[21:58] <DRebellion> etc
[21:58] <SpeedEvil> 20 quid camera, 20 quid balloon, 20 quid helium or so
[21:59] <DRebellion> : O
[21:59] <DRebellion> you're joking
[21:59] <SpeedEvil> of course, finding the camera afterwards will be damn tricky
[21:59] <natrium42> helium is a bit more expensive SpeedEvil :P
[21:59] <aLeXBrEtOn> well
[21:59] <SpeedEvil> hydrogen!
[21:59] <aLeXBrEtOn> how about a rocket?
[21:59] <DRebellion> how far would it tend to drift?
[21:59] <DRebellion> rofl rocket
[21:59] <DRebellion> we did that
[21:59] <DRebellion> it didn't go high
[21:59] <DRebellion> was damn expensive as well
[21:59] <DRebellion> ; )
[21:59] <SpeedEvil> DRebellion: some kilometers
[21:59] <SpeedEvil> DRebellion: 10-40
[21:59] <DRebellion> hmm
[21:59] <DRebellion> you see
[21:59] <SpeedEvil> 10-100 really
[21:59] <DRebellion> we live on an island
[21:59] <aLeXBrEtOn> that is loads of derivation
[21:59] <DRebellion> just off the coast of france
[21:59] <aLeXBrEtOn> called England
[22:00] <DRebellion> ; )
[22:00] <aLeXBrEtOn> could land in Slough *shudder*
[22:00] <DRebellion> do you HAVE to recover?
[22:00] <SpeedEvil> 'Come friendly bombs...'
[22:00] <DRebellion> what about live streaming?
[22:00] <aLeXBrEtOn> tricky
[22:00] <SpeedEvil> live streaming is quite possible
[22:00] <aLeXBrEtOn> you need a satellite right?
[22:00] <DRebellion> nah
[22:00] <DRebellion> radio no?
[22:00] <SpeedEvil> you can get 1Kg satellite internet devices that do 256K internet
[22:00] <DRebellion> aLeXBrEtOn, whoa http://vimeo.com/1626812
[22:01] <DRebellion> oh right
[22:01] <SpeedEvil> Of course, it's a fiver a megabyte, and the devices cost 2K
[22:01] <aLeXBrEtOn> ouch ;)
[22:01] <DRebellion> damn
[22:01] <DRebellion> but
[22:01] <DRebellion> if we launched
[22:01] <DRebellion> south england
[22:01] <DRebellion> it wouldn't get out to the oceans?
[22:02] <aLeXBrEtOn> we could do a co-operation with the local meteorology faculty
[22:02] <SpeedEvil> you can cutdown if you think you're going to fall in the sea
[22:02] <SpeedEvil> and there are weather predictors
[22:02] <DRebellion> cutdown?
[22:02] <DRebellion> so
[22:02] <DRebellion> if we picked a good summers day
[22:02] <SpeedEvil> cut the balloon away and fall on the chute
[22:03] <aLeXBrEtOn> look, we will still need a car to recover
[22:03] <SpeedEvil> Or a train.
[22:03] <DRebellion> hah
[22:03] <DRebellion> take the train
[22:03] <DRebellion> xD
[22:03] <DRebellion> so
[22:03] <DRebellion> you think it's feasible for two gcse students to do this?
[22:04] <aLeXBrEtOn> 10th grade no?
[22:04] <SpeedEvil> if you're not stupid, there isn't anything horribly impossible.
[22:04] <aLeXBrEtOn> OK, are we stupid? :P
[22:04] <SpeedEvil> I know I could have done it at that age.
[22:04] <SpeedEvil> With the gear nowadays.
[22:04] <aLeXBrEtOn> main problem is recovery
[22:04] <SpeedEvil> spectrum would be a bit heavy to go aloft
[22:04] <DRebellion> spectrum?
[22:04] <SpeedEvil> ZX spectrum
[22:04] <DRebellion> hmm... i don't think we're that stupid aLeXBrEtOn, no?
[22:04] <aLeXBrEtOn> no
[22:05] <DRebellion> oh right
[22:05] <DRebellion> hehe
[22:05] <aLeXBrEtOn> imho ;)
[22:05] <DRebellion> (too young)
[22:05] <DRebellion> what sort of balloon would be needed?
[22:05] Action: SpeedEvil tries to remember where the wiki is
[22:05] <DRebellion> made out of rubber or what?
[22:05] <SpeedEvil> a latex weather balloon
[22:05] <SpeedEvil> though there are options
[22:05] <SpeedEvil> I point you at the avove wiki
[22:05] <SpeedEvil> it's a good idea to look at it
[22:05] <DRebellion> think we could commandeer one from a local university?
[22:06] <DRebellion> or would they just point and laugh?
[22:06] <SpeedEvil> you buy them
[22:06] <SpeedEvil> not horribly expensive
[22:06] <aLeXBrEtOn> yeah you can buy them
[22:06] <DRebellion> well
[22:06] <DRebellion> need to keep costs down
[22:06] <DRebellion> ; )
[22:06] <aLeXBrEtOn> I checked, something like 50$ max
[22:06] <DRebellion> hmm
[22:06] <DRebellion> not bad
[22:06] <DRebellion> we need to get others in
[22:06] <DRebellion> donate money
[22:06] <DRebellion> school will sponsor?
[22:06] <DRebellion> local paper
[22:07] <aLeXBrEtOn> BTW
[22:07] <aLeXBrEtOn> ik where we can get a very cheap camera
[22:07] <DRebellion> ebay
[22:07] <aLeXBrEtOn> a few quid
[22:07] <SpeedEvil> ebay
[22:07] <aLeXBrEtOn> no
[22:07] <aLeXBrEtOn> bumblebee auctions
[22:07] <aLeXBrEtOn> where the police auction stolen goods
[22:07] <SpeedEvil> bumblebee?
[22:07] <aLeXBrEtOn> british police ;)
[22:07] <DRebellion> interesting
[22:07] <SpeedEvil> ebay works
[22:07] <aLeXBrEtOn> true
[22:07] <DRebellion> indeed
[22:07] <aLeXBrEtOn> but the cameras there are about 2 quid ;)
[22:07] <DRebellion> oh yeh
[22:07] <DRebellion> cameras
[22:08] <DRebellion> do we need to look out for any problems at altitude?
[22:08] <SpeedEvil> yes
[22:08] <SpeedEvil> it's fucking cold
[22:08] <SpeedEvil> -55C or so
[22:08] <DRebellion> damn
[22:08] <SpeedEvil> so much stuff doesn't work
[22:08] <SpeedEvil> surprisingly, many consumer cameras seem to.
[22:08] <DRebellion> hehe
[22:08] <aLeXBrEtOn> http://www.bumblebeeauctions.co.uk/XcAPViewItem.asp?ID=62950
[22:08] <DRebellion> i guess there are lists?
[22:08] <DRebellion> of tested camera?
[22:08] <SpeedEvil> But it might be worth flying only stuff that's flown. Again see the wiki
[22:08] <SpeedEvil> look a tthe topic
[22:09] <aLeXBrEtOn> well maybe if we insulated it very well
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[22:09] <SpeedEvil> that works, though ass complexity
[22:09] <SpeedEvil> adds
[22:09] <DRebellion> aLeXBrEtOn, we can get akb on this XD
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[22:09] <SpeedEvil> also - obviouslty, you need a light camera
[22:10] <aLeXBrEtOn> ye
[22:10] <DRebellion> "In the UK permission to launch balloons needs to come from the CAA. On application (with OS map marking launch site) and after review a permission will be sent to you and also a NOTAM will be issued"
[22:10] <aLeXBrEtOn> point and shoot I guess
[22:10] <DRebellion> ; (
[22:10] <aLeXBrEtOn> OK we need a weather organisation
[22:10] <aLeXBrEtOn> UoR will do
[22:10] <DRebellion> why?
[22:10] <aLeXBrEtOn> well they will have permission to launch
[22:10] Action: DRebellion is on the wiki
[22:10] <aLeXBrEtOn> though not that hard to obtain permission
[22:10] <DRebellion> Is there a central portal for "how to do fun things with balloons?"
[22:11] <SpeedEvil> dx: look at the wiki
[22:11] <DRebellion> i am
[22:11] <SpeedEvil> dr:
[22:12] <DRebellion> btw
[22:12] <DRebellion> how do you get the camera to take a picture?
[22:12] <SpeedEvil> glue the shutter down
[22:12] <SpeedEvil> set it to movie mode, or some sort of automatic or electronic means
[22:13] <DRebellion> how long does a typical launch last?
[22:13] <SpeedEvil> couple-several hours
[22:13] <aLeXBrEtOn> we could haxorise it
[22:13] <aLeXBrEtOn> or....
[22:13] <DRebellion> so... might be able to manage with a movie camera?
[22:13] <DRebellion> or do the tapes freeze up?
[22:13] <aLeXBrEtOn> hang on
[22:13] <SpeedEvil> no - solid state movie cam
[22:14] <DRebellion> expensive
[22:14] Action: DRebellion can has not moneys
[22:14] <DRebellion> xD
[22:14] <aLeXBrEtOn> we can defeat both the money prob and the camera prob
[22:14] <aLeXBrEtOn> and the temperature prob
[22:14] <SpeedEvil> not really
[22:14] <aLeXBrEtOn> if we buy a film camera
[22:14] <aLeXBrEtOn> will work at low temperature
[22:14] <SpeedEvil> horribly stupid idea
[22:14] <SpeedEvil> digital works well
[22:14] <aLeXBrEtOn> easy to hack so it takes pictures
[22:14] <SpeedEvil> and film won't wind, and the shutter won't work
[22:15] <aLeXBrEtOn> true
[22:15] <aLeXBrEtOn> ;)
[22:15] <SpeedEvil> http://www.dealextreme.com/details.dx/sku.18088
[22:15] <SpeedEvil> for example
[22:15] <SpeedEvil> though you probably want a slightly better class of camera
[22:15] <aLeXBrEtOn> just a normal canon or nikon or something
[22:15] <DRebellion> aLeXBrEtOn, you're such a film freak
[22:15] <aLeXBrEtOn> yes I am ;)
[22:15] <DRebellion> just accept that we've moved on
[22:16] <aLeXBrEtOn> though not best for this application
[22:16] <aLeXBrEtOn> so...
[22:16] <aLeXBrEtOn> shall I email UoR nicely?
[22:16] <aLeXBrEtOn> asking ?
[22:16] <DRebellion> nah
[22:16] <DRebellion> not yet
[22:16] <aLeXBrEtOn> they do extensive research apparently
[22:16] <DRebellion> need to put together a proper proposal
[22:16] <DRebellion> ie. equipment lists, dates, prices, etc, etc
[22:16] <SpeedEvil> getting permission to launch isn't too bad
[22:16] <aLeXBrEtOn> also
[22:17] <DRebellion> hmm
[22:17] <DRebellion> heathrow isn't too far away
[22:17] <aLeXBrEtOn> but they have the know-how regarding recovery
[22:17] <DRebellion> might be an issue
[22:17] <DRebellion> what's the deal with recovery?
[22:17] <aLeXBrEtOn> brb
[22:17] <DRebellion> gps transponder?
[22:17] <DRebellion> (james bond style?)
[22:18] <SpeedEvil> again, see the wiki
[22:18] <SpeedEvil> gps + transmitter, yes
[22:18] <SpeedEvil> there are less complex ways, but they don't work a fraction as well
[22:19] <DRebellion> so the total cost for a launch is around....?
[22:19] <SpeedEvil> it depends
[22:19] <SpeedEvil> 100-200 quid wouldn't be completely unreasonable
[22:19] <DRebellion> hmm
[22:19] <DRebellion> that's not too bad
[22:20] <DRebellion> provided we get people to donate
[22:20] <SpeedEvil> you may well be able to get sponsorship for balloons and gas and stuff, especially if you can get some photogenic pupils.
[22:20] <DRebellion> mmm
[22:20] <DRebellion> or print their names in big letters on the side : )
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[22:39] <akawaka> spanish kids got their pictures on the big picture
[22:45] <natrium42> cool
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[23:23] <M6JCX> Evening all
[23:24] <natrium42> hi
[23:24] <M6JCX> Am on the train :-)
[23:24] <M6JCX> Seems like i'm always travelling
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[23:50] <Laurenceb> hello
[23:51] <SpeedEvil> hello.
[23:51] <Laurenceb> just got back
[23:51] <SpeedEvil> np: Sir Mix-A-Lot.
[23:54] <SpeedEvil> get the rest of the data off?
[23:55] <Laurenceb> not yet
[23:55] <Laurenceb> too tired
[23:55] <Laurenceb> I have the descent data
[23:55] <Laurenceb> not the wind or ascent
[23:55] <Laurenceb> but I had a look over the terminal without managing to log it
[23:55] <Laurenceb> looked sensible ~4m/s wind
[23:56] <SpeedEvil> that's the extrapol.ated wind?
[23:56] <Laurenceb> its from the ascent drift
[23:56] <SpeedEvil> oh - right
[23:57] <Laurenceb> I think the problem was caused by a trim error, and the fairly gentle control loop couldnt stop it turning 360 degrees
[23:57] <Laurenceb> so the I term could never integrate to control the trim
[23:58] <SpeedEvil> were you scared about putting in too much authority, in case it started looping again?
[23:58] <Laurenceb> in case it started oscillasting
[23:58] <SpeedEvil> yeah
[23:59] <Laurenceb> it needs a rate integral term
[23:59] <SpeedEvil> anything other than the easily repaired bits broken?
[00:00] --- Sat Mar 21 2009