highaltitude.log.20091114

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[00:19] <juxta_> morning :)
[00:19] <MikeMc> yo
[00:20] <juxta_> how goes it MikeMc?
[00:20] <MikeMc> we are in the middle of a storm
[00:20] <MikeMc> so it's all fun
[00:21] <juxta_> ah, right
[00:21] <juxta_> 40 degrees C here today :)
[00:21] <MikeMc> bastard
[00:21] <MikeMc> :P
[00:21] <juxta_> hmm, well, I have to move furniture today
[00:21] <juxta_> so it might not be so fun
[00:22] <MikeMc> try moving furniture in a storm
[00:22] <MikeMc> that will maek it more interesting
[00:22] <juxta_> haha
[00:25] <juxta_> I bought a whip for the car this morning
[00:25] <juxta_> supposedly 4.5dB gain
[00:25] <MikeMc> sounds a bit extreme
[00:25] <MikeMc> and cruel
[00:25] <MikeMc> oh i see that kind of whip
[00:26] <juxta_> i didnt think whip's really gave any gain
[00:27] <MikeMc> they'd give more gain than a piece of wet string
[00:30] <juxta_> true
[00:30] <juxta_> i think it's 620mm long, electrically at least
[00:31] <juxta_> (it says 620mm, but doesnt look that long)
[00:31] <MikeMc> maybe it's an imperial millimetre
[00:32] <juxta_> heh
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[00:55] <MikeMc> ok time for bed
[00:55] <MikeMc> cya
[00:56] Nick change: bittwist -> chrisgroves
[00:56] Nick change: chrisgroves -> bittwist
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[07:53] <sbasuita> morning highaltitude
[07:53] <sbasuita> foundation test today :)
[07:58] <natrium42> cool, good luck
[07:59] <sbasuita> natrium42, thank you
[08:01] <natrium42> :)
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[08:41] <rjharrison> Morning sbasuita
[08:42] <rjharrison> Good luck with the test. I'm thinking 100%
[08:42] <rjharrison> Is DanielRichman doing his as well>
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[08:55] <MikeMc> morning
[08:56] <rjharrison> Hey MikeMc
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[09:03] <MikeMc> I have a river flowing down my street were there shouldn't be one
[09:15] <SpeedEvil> MikeMc: Pop over to openstreetmap.org, and you can fix that.
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[09:21] <MikeMc> lol
[09:22] <SpeedEvil> http://www.yr.no/place/United_Kingdom/Scotland/kirkcaldy/hour_by_hour.html - And my driving test is of course at 15:37
[09:24] <MikeMc> good luck
[09:24] <SpeedEvil> :)
[09:24] <SpeedEvil> I did not too badly on last attempt - lots fewer than 16 minor faults, and only one serious.
[09:25] <SpeedEvil> Rolled carefully past a stop sign, checking both ways before pulling out
[09:25] <SpeedEvil> completely missing the sign.
[09:25] <MikeMc> Holy crap - http://www.yr.no/place/United_Kingdom/England/Orpington/hour_by_hour.html
[09:25] <MikeMc> 10mm of rain tomorrow morning
[09:26] <SpeedEvil> Rainy.
[09:37] <gordonjcp> SpeedEvil: good luck
[09:37] <SpeedEvil> Other good news - I am now overweight - Woo!
[09:37] <SpeedEvil> (BMI <30)
[09:37] <SpeedEvil> -~5Kg in the last month or so.
[09:38] <SpeedEvil> Thanks!
[09:38] <gordonjcp> SpeedEvil: pop over and say hi when you get your licence ;-)
[09:42] <SpeedEvil> I hope it should be soonish.
[09:42] <SpeedEvil> I've no idea how long the process takes with an old paper license.
[09:44] <gordonjcp> iirc you can drive straight away once you pass
[09:45] <gordonjcp> you need the pass slip and the other bit that the examiner gives you
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[09:45] <gordonjcp> ... and then you can get your amateur radio licence
[09:46] <SpeedEvil> You had a card license though?
[09:47] <SpeedEvil> ah - right
[09:48] <SpeedEvil> 'You can drive before you receive your licence as long as you: have held a Great Britain or Northern Ireland licence issued since 1 January 1976 or another exchangeable licence'
[09:48] <SpeedEvil> So, no then.
[09:48] <SpeedEvil> :/
[09:50] <SpeedEvil> '. Allow at least three weeks for your licence to arrive before contacting DVLA.'
[09:50] <SpeedEvil> Oh joy.
[09:51] <SpeedEvil> I suppose they have to wait for the miniature painter to get round to painting the portrait, and make the paper from specially selected trees.
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[11:00] <juxta_> evening all
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[11:10] <juxta_> MikeMc, you around?
[11:16] <MikeMc> yeah
[11:17] <juxta_> how's it going?
[11:17] <juxta_> was just reading your project page on the wiki
[11:18] <juxta_> are you using a naked Atmega, or an arduino or something?
[11:19] <MikeMc> I am using an Atmega328 but with the ARduino bootloader on it
[11:19] <juxta_> ah fair enough
[11:19] <juxta_> are you building a custom PCB up?
[11:19] <MikeMc> makes it easier as there are already lots of nice libraries written for controlling things
[11:19] <MikeMc> yes i will be
[11:20] <juxta_> nice :)
[11:20] <juxta_> I'm using an arduino, but hoping to build up a custom board in the future
[11:20] <MikeMc> cool
[11:20] <MikeMc> it's very easy to do
[11:21] <juxta_> I've had a quick play in eagle
[11:21] <juxta_> but haven't really done much
[11:21] <juxta_> would love to master it though :)
[11:22] <MikeMc> woudln't we all !!
[11:22] <MikeMc> lol
[11:22] <MikeMc> OK gotta pop out to the Post Office so speak later
[11:22] <juxta_> catchya :)
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[11:42] <hornblower> MikeMc: could you pop a lin k here to your wiki page?
[11:44] <juxta_> hornblower: http://ukhas.org.uk/projects:earthshine
[11:46] <hornblower> thanks juxta_
[11:46] <juxta_> no worries hornblower
[11:46] <juxta_> do you have any project pages?
[11:47] <hornblower> Nothing yet! I hope that will change soon.
[11:49] <juxta_> nice - where are you located?
[11:50] <hornblower> london right now
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[11:57] <juxta_> ah right
[11:57] <juxta_> everyone's in the UK it seems ;p
[12:12] <hornblower> :)
[13:07] <hornblower> MikeMc: you're presumably caught in this downpour too?
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[13:16] <MikeMc> hornblower: Aren't we all?
[13:17] <hornblower> There was talk of trying to catch the lord mayor's firworks tonight but I can't see that happening now
[13:17] <MikeMc> they could use water rockets
[13:25] <SpeedEvil> Just shoot balls of sodium up in the air.
[13:28] <MikeMc> true
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[14:12] <edmoore> greetings juxta
[14:12] <edmoore> how's tricks?
[14:12] <juxta> hey edmoore, not too bad thanks :)
[14:12] <juxta> made up a foam cutter and made my payload box the other day :D
[14:12] <edmoore> ah brill :)
[14:13] <edmoore> lots of tin foil too?
[14:13] <juxta> haven't used foil yet - was debating covering it
[14:13] <juxta> I bought a whip for my car today too
[14:13] <edmoore> neat
[14:13] <edmoore> I think I am going to make another whip
[14:14] <edmoore> have some junk hard discs to nick the magents from
[14:14] <juxta> how much gain would a whip yield usually?
[14:15] <juxta> hard drive magnets are a good idea
[14:15] <juxta> this one isnt magnetic mount, it bolts up to a bracket which i'll have to whack on the car
[14:15] <juxta> it's a little long to be stable at speed with a magnetic mount I suspect
[14:16] <edmoore> just a 1/4 wave one (depends on the angle) is I think about 4dBi at horizontal
[14:16] <edmoore> yeah. my usage is pretty sporadic so I don't mind magnetic too much
[14:16] <juxta> this one is about 60cm long
[14:16] <juxta> I guess close to 3/4 wave or something
[14:16] <edmoore> 5/8ths?
[14:17] <edmoore> what freq is it designed to run on?
[14:17] <juxta> 430-444
[14:17] <juxta> they claim 4.5db gain, which I was surprised at, I didn't think it'd be that much
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[14:19] <edmoore> well, it's a trade-off. you obviously have in theory zero gain when the source is above you
[14:19] <edmoore> so you just shift around your gain when compared to an isotropic antenna (dBi being relative to isotropic)
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[14:22] <juxta> ah, good point
[14:22] <juxta> what's the weather like in Cambridge today edmoore?
[14:23] <edmoore> I am down in London seeing my other half
[14:23] <edmoore> and it's really pretty awful
[14:24] <juxta> ah
[14:24] <juxta> 40 degrees here
[14:24] <juxta> :)
[14:24] <edmoore> show off :p
[14:25] <juxta> haha, 40 degrees is a little warmer than ideal
[14:25] <edmoore> stay inside and code?
[14:25] <juxta> hmm, would be nice
[14:25] <edmoore> i just ran a preiction for launching from cambridge today
[14:25] <edmoore> it shoots off towards denmark
[14:25] <juxta> my parents are moving house at the moment, their new place isn't quite ready yet, so they've moving in with me ;p
[14:26] <juxta> ah.. less than ideal I guess, unless you want to land in Denmark :)
[14:26] <juxta> I ran some predictions today also, in the next week or so, predictions put me about 200km away from launch spot, in the ocean :(
[14:27] <edmoore> in the wrong direction
[14:29] <juxta> yeah, southerly
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[16:48] <rjharrison> yo edmoore
[16:48] <edmoore> hi rjharrison
[16:48] <rjharrison> Hows it going
[16:48] <rjharrison> any news
[16:49] <edmoore> it's good. no news, just in london with gf
[16:49] <edmoore> right, looks like we're off out
[16:51] <rjharrison> Oh fun
[16:51] <rjharrison> have
[16:51] <edmoore> it's squalling here
[16:51] <edmoore> not too pleasant
[16:51] <rjharrison> I'v been putting up my antenna at the new house
[16:51] <rjharrison> Yep wx is bad
[16:51] <rjharrison> tri band 6 2 and 70cm
[16:56] <edmoore> ok am still here for a bit
[16:56] <edmoore> cool - got a link?
[16:56] <edmoore> 6m is meant to be quite fashionable, I hear
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[17:01] <Laurenceb> hi
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[17:03] <SpeedEvil> Hi. :/
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[17:32] <jonsowman> evening :)
[17:46] <Laurenceb> http://www.grc.nasa.gov/WWW/K-12/airplane/ngnsim.html
[17:46] <Laurenceb> ^ interesting
[17:56] <SpeedEvil> saw that
[17:57] <Laurenceb> needs 230mph to start working in ramjet mode
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[17:59] <SpeedEvil> I have some doubts about a ramjet design calculator with k-12 in the URL :)
[17:59] <Laurenceb> hah
[18:00] Action: Laurenceb is wondering how to machine aluminium honeycomb
[18:01] <SpeedEvil> Fill it with wax?
[18:04] <Laurenceb> hey nice idea
[18:04] <Laurenceb> genius
[18:04] <Laurenceb> - for making solid rocket bulkheads
[18:05] <SpeedEvil> I mean - for machining - then you melt it out
[18:06] <Laurenceb> yeah
[18:07] <Laurenceb> hmm seems ramjets like about mach 2 near the ground for high thrust to weight
[18:07] <Laurenceb> mach 3 or so at altitude isnt nice for performance, and much faster and they get hot
[18:11] <Laurenceb> some waxes tend to contract when they set
[18:17] <Laurenceb> http://www.specialplasters.co.uk/index.php?act=viewProd&productId=67
[18:22] <SpeedEvil> there are ways round that
[18:25] <Laurenceb> I dont think that stuff contracts much
[18:28] <SpeedEvil> It depends on the cooling schedule to some degree
[18:28] <Laurenceb> yeah
[18:28] <Laurenceb> wonder how they make the parts industrially
[18:29] <SpeedEvil> I suppose google for some fab methods
[18:29] <SpeedEvil> Fill it with hot-melt
[18:29] <SpeedEvil> Or maybe not
[18:29] <SpeedEvil> Lasers!
[18:29] <SpeedEvil> Do it with lasers!
[18:30] <Laurenceb> heh
[18:30] <SpeedEvil> Ideally with sharks on their heads.
[18:32] <SpeedEvil> Is this regular honeycomb, or the psuedorandom stuff
[18:32] <Laurenceb> regular I guess
[18:32] <Laurenceb> as its strong and cheap
[18:34] <Laurenceb> seems to beat any other material for compressive strenght/weight
[18:44] <Laurenceb> gtg
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[18:48] <Laurenceb> hi edmoore
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[19:11] <EI5GTB> anyone recommend a good IDE for C/C++ on linux?
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[19:22] <DanielRichman> vim
[19:23] <DanielRichman> and subversion
[19:23] <DanielRichman> and make
[19:23] <DanielRichman> unbeatable, EI5GTB
[19:23] <DanielRichman> well, that is, vim with syntax highlighting on
[19:27] <EI5GTB> lol, no, vim is for use by heros, who have to prove they atre the best on computers, i have done my time with all of that, and would like somthing lazy
[19:27] <EI5GTB> for humans..
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[19:32] <DanielRichman> EI5GTB, vim is for humans! it's the best.
[19:32] <DanielRichman> IDEs just weigh you down
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[19:35] <EI5GTB> personally it slows mw down
[19:36] <EI5GTB> i have to google how to do everything
[19:36] <EI5GTB> because i always forget
[19:36] <EI5GTB> and that just pisses me of
[19:36] <EI5GTB> all i want to be avle to do is... type my code, press build and see if it works
[19:36] <EI5GTB> no !w
[19:37] <EI5GTB> then pile strings into cgg etc etc
[19:37] <EI5GTB> gcc*
[19:42] <DanielRichman> Awww... well EI5GTB trust me, once you know how to use vim and make effectivly it's so easy.
[19:47] <rjharrison> sbasuita, DanielRichman how did it go?
[19:49] <DanielRichman> rjharrison, great. Because I messed up my emails I missed a deadline ages ago and so knew i wasn't going to be able to take the paper today; but got my practical assessment card sorted and they reckon they can find a exam before xmas... I left before the exam and don't know if sbasuita got his but I'd be very surprised if he didn't
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[19:56] <RocketBoy> say natrium42 - hiya
[19:56] <natrium42> hi RocketBoy
[19:57] <RocketBoy> can you point me to a link for the US and Canadian ham radio licence conditions?
[19:57] <RocketBoy> I wanted to see what I'd get if I got a recipricol licence
[19:58] <natrium42> canada --> http://www.rac.ca/en/amateur-radio/regulatory/examinations/
[20:01] <natrium42> usa --> http://wireless.fcc.gov/services/index.htm?job=about_4&id=amateur
[20:02] <RocketBoy> ta
[20:02] <RocketBoy> (just taking a look)
[20:03] <natrium42> np
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[20:12] <RocketBoy> Validity; "Operator privileges are those authorized by the alien's government, but do not exceed those of the FCC Amateur Extra Class operator." - Sounds like I dont get to be allowed to transmit airbone if I get a recipricol licence.
[20:12] <RocketBoy> :-(
[20:14] <RocketBoy> Looks like I could take the US exam though and get a full US licence :-)
[20:14] <RocketBoy> "A FCC-issued license grant, moreover, supersedes reciprocal operating authority."
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[20:19] <RocketBoy> Wow - it looks like I can take the FCC exam outside of the US
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[22:55] <MikeMc> Evening
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[00:00] --- Sun Nov 15 2009