highaltitude.log.20090825

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[00:15] <Laurenceb> hello
[00:20] <SpeedEvil> hello
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[01:17] <Laurenceb> http://www.icrepq.com/papers-icrepq09.htm <- interesting stuff
[01:21] <Laurenceb> SpeedEvil: I took a look with aerolab at the rocket
[01:21] <Laurenceb> looks like 1.9Kg GLOW would work
[01:24] <SpeedEvil> :)
[01:25] <Laurenceb> need to do some proper designs
[01:25] <Laurenceb> I'm too busy atm :-/
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[09:42] <Bertrix> s
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[12:04] <jatkins> DanielRichman: I got the t68i working, thx for the help
[12:05] <DanielRichman> jatkins, great!
[12:05] <jatkins> it was just the ctrl-z that was the problem
[12:05] <DanielRichman> k
[12:11] <edmoore> hi jatkins
[12:11] <edmoore> long time no see
[12:11] <jatkins> yeah
[12:11] <jatkins> i've only got radio left to do, then payload construction
[12:12] <edmoore> awesome
[12:12] <edmoore> did you have exams this year or is that not for a bit yet?
[12:12] <jatkins> i've finished science modules
[12:12] <jatkins> i'm starting yr 11 when i go back
[12:14] <edmoore> I don't really remember how it works
[12:14] <edmoore> is that the year before GCSEs?
[12:14] <edmoore> no, GCSEs themselves, right?
[12:14] <jatkins> no, yr 11 is the last year
[12:15] <jatkins> so i'll do the gcses next year
[12:17] <jatkins> edmoore: are you launching again soon?
[12:17] <edmoore> yes
[12:17] <edmoore> not sure exactly when though
[12:18] <edmoore> when badger2 is assembled and programmed
[12:18] <jatkins> cool
[12:18] <edmoore> maybe next week if I don't sleep
[12:18] <jatkins> lol
[12:18] <jatkins> is martlet on hold?
[12:19] <edmoore> this summer yes
[12:20] <jatkins> ok
[12:42] <edmoore> it's a big project anyway
[12:42] <jatkins> yeah
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[15:12] <DanielRichman> hmm. Bye everyone; be back in one week
[15:13] <SpeedEvil> wave
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[17:29] <rjharrison> Hey guys I have just got a nice oscilloscope but it has no probes
[17:30] <rjharrison> I'm keen to have a play and have some probes for the hamleg at home
[17:30] <rjharrison> Can I just attach these to the tektronix?
[17:30] <rjharrison> Or is that bad
[17:33] <SpeedEvil> generally all oscilloscope probes are mostly compatible
[17:33] <SpeedEvil> nice=?
[17:33] Action: SpeedEvil has a 475a
[17:38] <rjharrison> TDS 2024B
[17:38] <rjharrison> Nice?
[17:44] <SpeedEvil> Can I buy one of the channels?
[17:44] <SpeedEvil> :)
[17:44] <SpeedEvil> Looks good.
[17:44] <SpeedEvil> bought or was given?
[17:54] <rjharrison> 300 squid from farnells second hand
[18:02] <rjharrison> SpeedEvil I'll have a play with it tonight
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[18:08] <SpeedEvil> farnells do second hand?
[18:08] <SpeedEvil> Guarantee?
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[18:09] <SpeedEvil> that would seem a very good pric
[18:11] <SpeedEvil> http://www.tek.com/service/warranties/tds1k_2k/faq.html
[18:11] <SpeedEvil> nice
[18:11] <SpeedEvil> though useless to you
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[18:21] <rjharrison> SpeedEvil no guarentee but at that price what would you expect
[18:23] <rjharrison> It was last calibrated in 2007
[18:24] <rjharrison> farnells have a room of stuff. You look through it and make them an offer... Some stuff is priced
[18:24] <rjharrison> I couldn't resist this one
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[18:26] <SpeedEvil> :/
[18:26] Action: SpeedEvil has no access to farnells room of stuff.
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[20:12] <rjharrison_home> SpeedEvil The scope works
[20:13] <rjharrison_home> The probe doesn't have the correct capacitance 25uF as oppsed to 18uF but other than that it seems to function ok
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[20:53] <SpeedEvil> :)
[20:54] <SpeedEvil> I would be astonished if you diddn't really mean 25pf :)
[20:55] <natrium42> did anybody tape that bbc program rocketboy was on?
[20:56] <SpeedEvil> I meant to dump it from the iplayer
[20:57] <SpeedEvil> I had network problems
[21:01] <SpeedEvil> Oh - right.
[21:01] <SpeedEvil> It's unusual.
[21:02] <SpeedEvil> 3 months on iplayer
[21:02] <gordonjcp> was that Bang Goes The Theory?
[21:02] <gordonjcp> with the ballooning Action Man?
[21:05] <SpeedEvil> yes
[21:05] <SpeedEvil> http://www.microsoft.com/businessproductivity/default.mspx http://www.microsoft.com/poland/businessproductivity/default.mspx
[21:05] <SpeedEvil> Spot the difference.
[21:05] <natrium42> SpeedEvil, would be awesome if you could dump it, as i can't access iPlayer w/o some kind of proxy :)
[21:06] <SpeedEvil> ah
[21:06] <rjharrison_home> hey SpeedEvil this is my rtty showing peaks http://www.robertharrison.org/images/rtty/TEK0000.JPG
[21:06] <natrium42> SpeedEvil, there are no blacks in poland or something
[21:06] <SpeedEvil> rjharrison_home: you mean why is it?
[21:06] <rjharrison_home> Im guessing the spikes I want to remove and you get that with pulse shaping
[21:07] <rjharrison_home> ie removed
[21:07] <SpeedEvil> Well - they are probably irrelevant.
[21:07] <SpeedEvil> Zoom in - how fast are they
[21:07] <rjharrison_home> They are
[21:07] <rjharrison_home> I'm not that bothered given prev launches :)
[21:09] <SpeedEvil> rjharrison_home: you could probably get some improvement in pulse shaping with a simple RC filter
[21:11] Action: SpeedEvil kicks off download.
[21:14] <rjharrison_home> Yep true
[21:14] <rjharrison_home> Have you got some where to put that episode of bang?
[21:14] <rjharrison_home> If you want I can shove it in my svn
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[21:15] <rjharrison_home> SpeedEvil I'll look into the rc filter now I can see whats going on
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[21:21] <SpeedEvil> Scopes are so awesome. Even bad ones.
[21:22] <rjharrison_home> yep
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[21:33] <SpeedEvil> http://en.wikipedia.org/wiki/Tallboy_bomb Fun. Supersonic bomb.
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[23:15] Action: ShellEvil begins uploading.
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[23:22] <Laurenceb> ?
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[23:36] <ShellEvil> I hadn't realiesed natrium42 had left - and was saying I'd begun uploading the bang goes thing - to rapidshare
[23:37] <Laurenceb> rapidshare: where the pron lives
[23:38] <ShellEvil> Pretty much.
[23:38] <ShellEvil> Though I do have a video up there already.
[23:38] <ShellEvil> Which is very twisted.
[23:38] <Laurenceb> too much information
[23:39] <ShellEvil> (Reprojected into a rectangle from the original off-axis video of a talk)
[23:39] <ShellEvil> OpenMoko
[23:39] Action: ShellEvil stabs retarded managers.
[23:40] <ShellEvil> Laurenceb: They need your help! http://science.slashdot.org/story/09/08/25/1859207/South-Koreas-First-Rocket-Fails-To-Reach-Set-Orbit
[23:42] <Laurenceb> heh
[23:42] <Laurenceb> well they didnt do any worse than north korea
[23:43] <ShellEvil> North korea is trying again - in competition with the US orion project. But they're going to use a real Orion :)
[23:44] <Laurenceb> I rewrote the sim code to be a bit more realistic - looks like 1.75Kg GLOW works
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[23:45] <Laurenceb> that means you can launch from 33Km with a 1500gram balloon
[23:45] <ShellEvil> what's the finances like?
[23:48] <Laurenceb> £500 or so
[23:48] <Laurenceb> bbl
[23:51] <ShellEvil> as to h-bridges - http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MC33186VW1-ND
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[00:00] --- Wed Aug 26 2009