highaltitude.log.20110502

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[00:21] <SpeedEvil> http://www.youtube.com/watch?v=Ag-_SOihwwg&feature=player_profilepage#t=92s - genius form of transport
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[00:50] <W0OTM> I have a lipo battery I think I broke
[00:50] <W0OTM> is there a min voltage to rum them down to?
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[00:53] <SpeedEvil> 2.7v or so
[00:54] <SpeedEvil> Ifit's aprotectedcellitmay disconnectr, and read 0v, thoughit isn't really
[01:11] <W0OTM> I think I fixed it
[01:11] <hibby> \o.
[01:11] <W0OTM> applied voltage to it and a few min
[01:11] <hibby> \o/ even
[01:11] <hibby> it's in paper!
[01:11] <W0OTM> and then plugged into the charger
[01:12] <W0OTM> seems to be charging now
[01:12] <W0OTM> Dan-K2VOL: you around?
[01:13] <Dan-K2VOL> yeah
[01:13] <W0OTM> got a min?
[01:13] <W0OTM> can I PM you?
[01:16] <Dan-K2VOL> yes
[01:16] <Dan-K2VOL> go ahead
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[01:25] <Lunar_Lander> back
[01:33] <hibby> wb
[01:33] <hibby> late for you, no?>
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[01:39] <Lunar_Lander> yeah
[01:39] <Lunar_Lander> but that is no problem :)
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[01:58] <hibby> hahah
[01:58] <hibby> im just heading to bed
[01:58] <hibby> load the washing machine
[02:01] <Lunar_Lander> yea
[02:02] Action: hibby has his paper in actual paper now
[02:02] <hibby> it's getting worryingly real
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[02:10] <Lunar_Lander> why?
[02:11] <W0OTM> figured out why the CutDown failed...im SO mad at myself...soldered the cutdown wires to the wrong pads...
[02:12] <griffonbot> @W0OTM: Figured out why the CutDown module failed...im SO mad at myself...soldered the cutdown wires to the wrong pads...#arhab #hamradio [http://twitter.com/W0OTM/status/64874910018838528]
[02:13] <hibby> Lunar_Lander: because I have a degree swinging on this paper im finalising... bit intimidating
[02:13] <Lunar_Lander> ah
[02:13] <Lunar_Lander> cool!
[02:13] <Lunar_Lander> oh W0OTM :(
[02:14] <griffonbot> @LVL1WhiteStar: Got the @digidotcom m10 sat modem hooked up to a pair of Digi XBee 2.5s, able to connect m10 to PC wirelessly for Dashboard! #arhab [http://twitter.com/LVL1WhiteStar/status/64875486534316032]
[02:15] <W0OTM> Lunar_Lander: im SO mad at myself
[02:15] <Lunar_Lander> W0OTM but it worked in the video
[02:15] <Lunar_Lander> did you take it apart again?
[02:15] <W0OTM> yeah
[02:15] <Lunar_Lander> oh
[02:15] <Lunar_Lander> why?
[02:16] <W0OTM> I pout a longer lead wire
[02:16] <W0OTM> and when I did that, I soldered it to the wrong pad
[02:16] <W0OTM> complete rookie mistake
[02:16] <Lunar_Lander> ah
[02:16] <Lunar_Lander> yeah if I were you, I would be very, very down
[02:17] <W0OTM> LMAO
[02:17] <Lunar_Lander> yeah
[02:17] <Lunar_Lander> at least
[02:17] <Lunar_Lander> I can give you something to read
[02:17] <W0OTM> excuse me a sec, while I go jump off the roof
[02:17] <Lunar_Lander> in about 15 minutes
[02:17] <Lunar_Lander> :)
[02:17] <W0OTM> ok good!
[02:17] <Lunar_Lander> ohhh please don't!
[02:17] <Lunar_Lander> wait
[02:17] <W0OTM> LMAO
[02:17] <Lunar_Lander> http://www.youtube.com/watch?v=hYMseN4XzxI
[02:17] <Lunar_Lander> some music for the waiting
[02:20] <hibby> lol
[02:32] <Lunar_Lander> approaching finalization
[02:35] <griffonbot> @TomTrieb: RT @LVL1WhiteStar: @PBH5 payload just landed, already found by White Star friend Rob LaPoint, pic attached! #arhab http://t.co/62Tpfsi [http://twitter.com/TomTrieb/status/64880639803002880]
[02:36] <Dan-K2VOL> hmm little late on that
[02:37] <Zuph> heh
[02:37] <Zuph> Just a bit
[02:38] <Lunar_Lander> finally donw
[02:38] <Lunar_Lander> done
[02:38] <hibby> obama's making some sort of exciting speech
[02:38] <Lunar_Lander> W0OTM it is still May 1 in all of the USA?
[02:39] <hibby> "around about now" http://www.whitehouse.gov/live/president-obama-delivers-statement
[02:40] <Lunar_Lander> DONE!
[02:40] <Lunar_Lander> http://winzenflyer.wordpress.com/2011/05/02/45-years-of-strato-jump-iii/
[02:42] <Dan-K2VOL> yeah just tuned to cspan.org
[02:43] <Dan-K2VOL> was this announced ahead of time? I just heard about it on twitter
[02:43] <Dan-K2VOL> lunar lander yes
[02:46] <Lunar_Lander> W0OTM reading :)?
[02:46] <hibby> Dan-K2VOL: appears to have leaked otu
[03:01] <Lunar_Lander> watching on CBS now
[03:03] <Dan-K2VOL> yeah cspan is pretty boring
[03:06] <SpeedEvil> cspank is much better.
[03:08] <slothearn> does 10:30 EDT mean 11:30 in White House time? :P
[03:08] <hibby> 3~lol
[03:09] <slothearn> Wiki is already updated
[03:09] <slothearn> -_-
[03:10] <hibby> lol
[03:11] <slothearn> http://www.mediaworks.co.nz/Default.aspx?tabid=240
[03:11] <slothearn> also, huge typo fail ^
[03:12] <slothearn> "Barack Obama dead - Barack Obama to give historic announcement in minutes."
[03:12] <hibby> ahaha
[03:12] <hibby> the correspondant on BBC news pretty much just quoted v for vendetta
[03:12] <SpeedEvil> 'mmm - tasty mice' ?
[03:12] <hibby> "you can kill the man, but the idea that he represented will live on beyond him... he has become the idea"
[03:14] Action: SpeedEvil cues South Park.
[03:14] <hibby> lol
[03:14] <SpeedEvil> 'Though I die - La Resistance lives on'
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[03:35] <SpeedEvil> http://www.whitehouse.gov/live/president-obama-delivers-statement - started
[03:36] <hibby> indeed.
[03:36] <hibby> very evocative
[03:36] <Darkside> confirmed
[03:36] <hibby> keep up
[03:37] <hibby> we're all 30 seconds ahead of yoyu
[03:37] <Darkside> pff
[03:37] <Darkside> i'm watching on abc news 24
[03:37] <SpeedEvil> Hmm.
[03:37] <hibby> lol
[03:37] <SpeedEvil> http://cgi.ebay.co.uk/5000-liter-tanks-water-diesel-ect-stainless-steel-/110680205225?pt=LH_DefaultDomain_3&hash=item19c50de7a9
[03:37] <SpeedEvil> I do need a new hot water cylinder.
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[03:45] <Lunar_Lander> the talk is concluded
[03:46] <hibby> how exciting
[03:46] <hibby> one advantage to sleeping during the day
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[07:17] <mixio> hi
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[07:23] <mixio> hi
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[07:38] <m1x10> hi
[07:39] <m1x10> who can help me with some simple humidity code?
[07:39] <m1x10> http://pastebin.com/FSZvFFcw
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[07:40] <m1x10> hi jcoxon
[07:40] <m1x10> [10:39] <m1x10> who can help me with some simple humidity code?
[07:40] <m1x10> [10:39] <m1x10> http://pastebin.com/FSZvFFcw
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[08:34] <Lunar_Lander> hello
[08:34] <eroomde> good morning Lunar_Lander
[08:34] <Lunar_Lander> good morning eroomde
[08:34] <Lunar_Lander> how are you?
[08:34] <eroomde> well, thank you
[08:35] <eroomde> it's a public holiday here today
[08:35] <eroomde> although I am going into work this morning sadly
[08:35] <eroomde> but only for the morning
[08:35] <eroomde> how are you?
[08:35] <Lunar_Lander> oh ok
[08:35] <Lunar_Lander> I'm fine, thanks
[08:35] <Lunar_Lander> I'm at uni right now
[08:36] <eroomde> that's why i'm going in - uni tends to ignore national holidays
[08:36] <jonsowman> don't I know it
[08:36] <eroomde> although i am not strictly teaching staff, my three colleagues are all teaching staff
[08:37] <eroomde> one a lecturer, two are post-docs who teach. so one must show willing even though I do no teaching :)
[08:37] <fsphil> morning all
[08:37] <eroomde> good morning fsphil, jonsowman
[08:37] <jonsowman> morning :)
[08:38] <eroomde> anyone used Mint Debian Linux?
[08:38] <eroomde> thinking of puttin g it on my new box instead of buntu
[08:39] <fsphil> [ot
[08:39] <eroomde> ?
[08:39] <fsphil> off topic: chicks! http://webcam.sanslogic.co.uk/box1
[08:39] <fsphil> sorry, enter key got in the way :)
[08:40] <jonsowman> fsphil: :D
[08:40] <fsphil> I booted mint once from a cover CD in a magazine, played with it for a few minutes. nothing amazing
[08:41] <eroomde> is it more amazing than ubuntu though?
[08:41] <eroomde> fsphil: what chicks are they?
[08:41] <fsphil> great tit
[08:41] <fsphil> I don't like ubuntu so I'd say yes ;-)
[08:41] <fsphil> the only thing I noted was that everything worked
[08:41] <fsphil> I didn't play around with the package manager or anything like that
[08:42] <Lunar_Lander> ah
[08:42] <Lunar_Lander> btw eroomde
[08:42] <Lunar_Lander> I just borrowed a book called "How to get a Ph.D."
[08:42] <eroomde> fsphil: indeed, that's what i want. i want minimal cost to get a working system and then simplicity
[08:43] <eroomde> Lunar_Lander: yo
[08:43] <Lunar_Lander> I looked inside and it said something about how to run researchb
[08:43] <Lunar_Lander> -b
[08:43] <jonsowman> it's Mint a Ubuntu derivative? so uses aptitude etc?
[08:43] <Lunar_Lander> so I picked it up, maybe it helps with the balloon
[08:43] <jonsowman> *isn't
[08:43] <eroomde> jonsowman: debian
[08:43] <jonsowman> ah OK -- well it'll still be aptitude then :)
[08:44] <eroomde> yep
[08:44] <eroomde> fsphil: cam is amazing
[08:44] <eroomde> mr and mrs
[08:44] <Lunar_Lander> YES!
[08:44] <Lunar_Lander> "On FedEx vehicle for delivery"
[08:44] <Lunar_Lander> :D
[08:44] <fsphil> looks like there's an egg left to hatch
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[08:46] <Lunar_Lander> xD
[08:49] <Lunar_Lander> brb
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[08:52] <Lunar_Lander> back
[08:52] <eroomde> indeed
[08:52] <eroomde> my friend has just threatened to dent my new knife unless i get a different keyboard to my ibm model m clone
[08:52] <eroomde> he can't read the paper to its glorious sonorous clacking
[09:03] <fsphil> but the clicking .. it's important
[09:04] <jcoxon> morning eroomde
[09:04] <fsphil> or at least it makes everything sound important
[09:19] <eroomde> jcoxon: morning
[09:19] <Lunar_Lander> lunch time!
[09:19] <Lunar_Lander> and hello jcoxon
[09:19] <eroomde> fsphil: exactly
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[09:22] <jcoxon> hows tricks
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[09:33] Action: LazyLeopard is getting a bit tired of blustery weather...
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[09:37] <jcoxon> hope it calms down
[09:37] <jcoxon> hoping to launch next week
[09:39] <NigelMoby> Meh morning
[09:40] <LazyLeopard> Yeah, I've an antenna I want to take down, adjust, and replace, but I don't fancy doing that in these conditions. Blustery winds and high ladders are not a favourite combination of mine...
[09:40] <mattltm> Hi all :0
[09:41] <mattltm> LazyLeopard: I've been waiting to get on the roof for 3 days!
[09:41] <NigelMoby> Hey matt
[09:41] <LazyLeopard> Morning Matt. Any luck with SOTA?
[09:41] <mattltm> Not a saussage LazyLeopard. There was a ton of static in Wales.
[09:42] <mattltm> And some errent sheep!
[09:42] <mattltm> Hi Nigey :)
[09:42] <NigelMoby> Lol
[09:42] <NigelMoby> The sheep were funny
[09:43] <LazyLeopard> Band conditions on Friday were barbecued carp...
[09:43] <mattltm> Yup.
[09:43] <NigelMoby> Matt .... http://twitpic.com/4s4iuw
[09:44] <mattltm> 20M was very good last night though. I worked an N8 station on 20W :)
[09:44] <mattltm> Nice one Nigey :0
[09:44] <mattltm> NigelMoby: Have you uploaded the vid that you took?
[09:44] <NigelMoby> Worked first time too lol
[09:45] <LazyLeopard> I managed 2 contacts, one with SOTA GW/NW-071, and the other with IotA EU-108 Lunga, a small island between Mull and Tiree
[09:45] <NigelMoby> Yeah ill get link ...
[09:45] Action: fsphil worked mattltm .. that was pretty much it
[09:46] <fsphil> hey mattltm, heard M6RDP on the local echolink repeater. he's gonna be annoyed when he tried to get his intermediate callsign :)
[09:46] Action: mattltm hopes that fsphil gets an 857 soon!
[09:46] <fsphil> oh it's ordered
[09:46] <fsphil> also reading up on the G5RV -- guessing that's also not heping me
[09:46] <fsphil> helping*
[09:47] <GW8RAK> Morning, been spending money fsphil?
[09:47] <mattltm> lol. Well if someone hadnt taken MDP we would all be fine!
[09:47] <fsphil> lol yep GW8RAK, my bank account is rather fragile at the moment
[09:47] <fsphil> lol
[09:47] <LazyLeopard> 2*0RDP taken, then?
[09:47] <mattltm> fsphil: Some people love the G5RV, some people hate it!
[09:47] <GW8RAK> Well if I'm unlucky, I'm buying 3 IC-718's tomorrow
[09:48] <GW8RAK> Not all for me
[09:48] Action: mattltm was M6MDP and is now 2E0RDP
[09:48] <fsphil> mattltm, could also have been the static drowning out my puny signal
[09:48] <fsphil> will have to try again when the conditions improve
[09:48] <fsphil> way too windy for the mountain today
[09:48] <NigelMoby> Bloody hell
[09:48] <jcoxon> GW8RAK, ebay bids?
[09:48] <NigelMoby> They've killed bin laden
[09:48] <mattltm> I would say it was the static. I could hear you but only in the noise. Most other stations were unreadable too.
[09:48] <GW8RAK> No, one for the air cadet squadron, one for a friend and one for me.
[09:48] <fsphil> ooh 2M contest tomorrow
[09:49] Action: jcoxon is on nights this week again :-(
[09:49] <LazyLeopard> fsphil: There's a Camb Hams DXpedition on Arran at the moment. They're staying on the west coast of the island, so might be a possible VHF contact for you?
[09:49] <fsphil> noooo
[09:49] <GW8RAK> Martin Lynch had them on a good price, but although all gone, the idea of selling 3 was too much for them.
[09:49] <jcoxon> but then 2 weeks off
[09:49] <fsphil> LazyLeopard, oooh I know someone who's on that
[09:49] <GW8RAK> Just waiting for them to come back with a final price
[09:49] Action: LazyLeopard does too. ;)
[09:49] <fsphil> well he's on my twitter list, I don't know him personally lol
[09:50] <LazyLeopard> G8TMV (who sometimes drops in here) for one.
[09:51] <LazyLeopard> ...and at least half the folks who organised the Intermediate and Advanced exams I took, too.
[09:51] <fsphil> Think I remember seeing the callsign
[09:51] <GW8RAK> Still don't know if it's the right set for me though. Big decision time
[09:51] <fsphil> 2E0SQL is the one I know, from the #hamtests IRC channel
[09:52] <LazyLeopard> http://dx.camb-hams.com/dx-peditions/arran-dxpedition-11/arran-2011-meet-the-team/
[09:53] <fsphil> "Likes custard." .. doesn't everyone
[09:53] <fsphil> I think there may be a mountain in the way between me and the island
[09:53] <fsphil> will have a listen
[09:53] <fsphil> though I could drive up said mountain ....
[09:53] <GW8RAK> I was thinking of my own IOTA activitation to the Hilbre islands in the river Dee estuary, but then found there is a big activation in a couple of weeks.
[09:54] <LazyLeopard> Heh. Is it a SOTA peak?
[09:54] <fsphil> I was suppose to be going to the beach today too, that would be the perfect spot on the north coast
[09:54] <fsphil> LazyLeopard, it is! but the peak is fairly far from the spot I usually go to
[09:54] <fsphil> I think this summer I'll try and get there
[09:54] <LazyLeopard> GW8RAK: So get a pre-emptive one in. ;) Won't dent the big expeditionQSO count any...
[09:55] <GW8RAK> Was wondering about it. Just walk over and stay over high tide, do what I can. I suppose it could be publicity for their bigger event.
[09:56] <fsphil> HF? I might have a go at chasing
[09:57] <GW8RAK> got to find the right tides. The islands dry, so it is just a walk across the sand.
[09:57] <GW8RAK> weekend of 14/15th has the best tides, but I think I'm away then :(
[09:58] <GW8RAK> May have to reconcile myself with some SOTA this afternoon.
[10:04] <mattltm> I guess, since it is to windy to do anything outside, I should tidy the shcak up.
[10:12] <NigelMoby> Hmm
[10:12] Action: LazyLeopard is having a relaxing morning...
[10:16] <NigelMoby> Snap
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[10:21] Nick change: SpikeUK_ -> SpikeUK
[10:29] <mattltm> find it Nigey?
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[10:36] <mattltm> fsphil: I'm likeing SSTV :)
[10:37] <mattltm> Thanks :)
[10:38] <fsphil> I love it too
[10:39] <fsphil> what's conditions like today?
[10:39] <mattltm> Im 595 into Sweeden at the mo.
[10:39] <mattltm> Just had a QSO with SM5EEP
[10:40] <fsphil> lol
[10:40] <fsphil> the sheep have radios. be afraid
[10:40] <mattltm> lol.
[10:40] <mattltm> Im on 20M @ 25W
[10:40] <mattltm> I need to find an SSTV prog that can auto ftp images.
[10:44] <mattltm> http://www.mattltm.co.uk/wp-content/uploads/2011/05/201105021030.jpg
[10:44] <fsphil> groovy lol
[10:44] <mattltm> http://www.mattltm.co.uk/wp-content/uploads/2011/05/201105021032.jpg
[10:44] <mattltm> http://www.mattltm.co.uk/wp-content/uploads/2011/05/201105021037.jpg
[10:44] <mattltm> http://www.mattltm.co.uk/wp-content/uploads/2011/05/201105021040.jpg
[10:45] <fsphil> sweet
[10:45] <fsphil> must see if I can hear anything
[10:45] <fsphil> that noise is still here so....
[10:45] <mattltm> Can you get MMSSTV to auto save images?
[10:45] <mattltm> Or ftp them?
[10:46] <fsphil> i think so
[10:47] <fsphil> those "webcam" sites seem to use mmsstv
[10:48] <mattltm> Ahh... http://www.ke5rs.com/john/software/widget/
[10:48] <fsphil> installing on this PC .. not hearing anything on 14.230 at all
[10:48] <mattltm> fsphil: You listening now?
[10:49] <fsphil> radio is on yea, but S9 noise
[10:49] <fsphil> I thought it might have been the ethernet cable we have between some of the houses here, but that's disconnected
[10:49] Action: LazyLeopard finds there are too many SSTV formats, and it's almost impossible to pick the one you're hearing and get it to decode.
[10:49] <fsphil> on my side anyway
[10:50] <fsphil> mmsstv usually gets it right automatically
[10:50] <mattltm> LazyLeopard: Ive been using mmsstv for about 5 days now. Very easy to get started with.
[10:51] <mattltm> I seem to have a small issue with slant correction but thats it.
[10:51] Action: LazyLeopard doesn't run Windows.
[10:51] <fsphil> nor do I :)
[10:51] <fsphil> tis unfornatuate but the only linux-native sstv app is just nasty and horrible
[10:51] <LazyLeopard> ...and the linux laptop just about copes with dl-fldigi.
[10:52] <fsphil> I'm tempted to take qsstv and give it a proper gui
[10:52] <LazyLeopard> Ah. MultiScan spotted that one, butthen it cut out...
[10:54] <LazyLeopard> ...and the one that came after was something else, but its start was hidden...
[10:55] <fsphil> I'm hearing nothing
[10:55] <fsphil> I so gotta track down this noise
[10:56] <LazyLeopard> Ah. Taking the DSP out of narrow-ssb might help...
[10:57] <fsphil> haha
[11:00] <LazyLeopard> Mind, the signal's only S2 or S3 and the noise is close to that...
[11:01] <LazyLeopard> I need to get that antenna down and adjusted, but not in this wind...
[11:01] <LazyLeopard> Something slipped, and the bracing string is now tangled in the 20 metre element.
[11:02] <LazyLeopard> ...which is probably not too much of a problem while the weather's dry.
[11:05] <fsphil> actually all the HF bands are dead today, normally it's just 20m
[11:05] <LazyLeopard> critical frequency over the UK is below 5MHz, apparently. 80 metres might work.
[11:06] <LazyLeopard> Must put in the 60 metres NoV request...
[11:09] NigeyS (~EcEnTiAl@cpc5-cdif13-2-0-cust232.5-1.cable.virginmedia.com) joined #highaltitude.
[11:13] <SpeedEvil> http://cgi.ebay.co.uk/Current-Cost-Analogue-Development-Board-/170631204932?pt=UK_AudioElectronicsVideo_Video_TelevisionSetTopBoxes&hash=item27ba699044 I love silly companies.
[11:13] <SpeedEvil> (above is sold by the same company that makes my energymeter I got free from Eon)
[11:14] <Laurenceb> i dont get it
[11:14] <Laurenceb> what does it do
[11:15] <SpeedEvil> You hook it up to a current sensor, and it reads out as an appliance load on your energy meter.
[11:15] <Laurenceb> ah i see
[11:15] <Laurenceb> thats quite neat
[11:16] <Laurenceb> i was wondering if you could use a scart socket to turn a vhs into a tape drive
[11:18] <fsphil> there was a backup system for the amiga that used vhs
[11:18] <fsphil> can't remember the name
[11:18] <SpeedEvil> Also the PC
[11:18] <SpeedEvil> danmere backer
[11:18] <Laurenceb> hard drives are so cheap now its probably not worth it
[11:18] <SpeedEvil> I think Istill haver the card.
[11:18] <Laurenceb> ~10GB on a vhs tape
[11:19] <SpeedEvil> It stored ~1GB
[11:19] <SpeedEvil> IIRC
[11:19] <fsphil> http://www.hugolyppens.com/VBS.html
[11:19] <Laurenceb> nice
[11:19] <fsphil> "With 130MB per hour, 520MB will fit on a 4-hour tape"
[11:20] <Laurenceb> does vhs have any system for aligning the frames?
[11:20] <fsphil> but that was with a 14mhz processor, you could do much better now
[11:20] <SpeedEvil> aligning the frames?
[11:20] <SpeedEvil> this is what 'tracking' is.
[11:20] <Laurenceb> or do you end up with some sort of interleaving
[11:20] <Laurenceb> ah
[11:21] <Laurenceb> hmm actually PAL would be screwed if it went out of alignment like that
[11:21] <SpeedEvil> It's not that simple
[11:21] <SpeedEvil> It's not recorded in the tape as unmodified PAL
[11:21] <SpeedEvil> Nasty things are done to the chrmoninance and luminance bandwidths.
[11:21] <fsphil> I read it's sorted similar to the old secam format
[11:23] Action: SpeedEvil wonders what would have happened if the psn hackers(s) had managed to own the psns.
[11:23] <SpeedEvil> Make them all into onemassive supercomputer botnet
[11:23] <SpeedEvil> with p2p games transfer
[11:23] <SpeedEvil> What can you do with a ten million core supercomputer for malware.
[11:28] <SpeedEvil> http://cgi.ebay.co.uk/Dareway-Scooter-Girls-Toy-PInk-Purple-Segway-Electric-/200601655355?pt=UK_Toys_Games_Outdoor_Toys_ET&hash=item2eb4ca583b A cheap segway knockoff for kids.
[11:28] <SpeedEvil> What could possibly go wrong.
[11:30] <fsphil> urg, it's pink. don't show Upu!
[11:31] <NigeyS> lol
[11:44] <eroomde> word up
[11:44] <NigeyS> hey Ed
[11:47] <cuddykid> hi all
[11:48] <cuddykid> just been testing the backup tracker (some chinese made thing for about £30/40 on ebay).. seems to work a treat!
[11:48] <mattltm> fsphil: Want to try and work via iss sometime?
[11:50] <NigeyS> NASA Delays Shuttle Launch; No New Date Set
[11:50] <NigeyS> grrrrrr
[11:53] <cuddykid> need some help! The tracker is relaying long and lat in the following format, how do I convert so google maps will understand?! --> 00214.4936,W,5216.7353,N
[11:53] <Laurenceb> why dont they just get on with it an make a beamed power shuttle
[11:54] <NigeyS> lol laurenceb
[11:54] <SpeedEvil> Not quite.
[11:55] <SpeedEvil> You do need a fuckton of gyrators.
[11:55] <SpeedEvil> gyratrons
[11:55] <SpeedEvil> but it's not an inherently insane idea
[11:55] <SpeedEvil> IMO - it's the sort of stuff NASA should have been doing withthe shuttle money.
[11:56] <SpeedEvil> NigeyS: did you see the presentation on it?
[11:56] <Laurenceb> they are fairly cheap
[11:56] <NigeyS> not yet :/
[11:56] <SpeedEvil> Laurenceb: Not if you want a few gigawatts.
[11:56] <Laurenceb> you dont need that much power for a small launcher
[11:57] <SpeedEvil> True
[11:57] <Laurenceb> 100MW or so is feasible for a small reusable launch vehicle
[11:57] <SpeedEvil> it's only hundreds of megawats
[11:57] <Laurenceb> like skylon but more sane
[11:57] <SpeedEvil> authors.library.caltech.edu/3303/1/PARaipcp04a.pdf NigeyS
[11:57] <NigeyS> oo tnx dude
[11:58] Action: LazyLeopard humms something by Jordin Kare...
[11:58] <SpeedEvil> 100Kg payload for 275MW
[11:58] <SpeedEvil> More interestingly perhaps.
[11:59] <SpeedEvil> The exact same technology lets you - with rather more ease - power aeroplanes.
[12:00] <Laurenceb> http://www.escapedynamics.com/#technology
[12:05] <SpeedEvil> Laurenceb: That looks suspiciously like the PDF I just linked with more colour. :)
[12:05] <SpeedEvil> And less figures.
[12:16] <Laurenceb> http://www.google.com/url?sa=t&source=web&cd=6&ved=0CGUQFjAF&url=http%3A%2F%2Fnuclear.inl.gov%2Fdeliverables%2Fdocs%2Finterim_report_300mwe_s_co2.pdf&rct=j&q=supercritical%20carbon%20dioxide%20reactor&ei=cKC-Tb-9KsPE8QO6utzKBQ&usg=AFQjCNEirFVbF8R_WMKw9Ec1MaMczveewQ&cad=rja
[12:16] <Laurenceb> lol figure 2.3 and 2.5
[12:19] <SpeedEvil> Wow!
[12:19] <SpeedEvil> This high pressure high temperature stuff must be easier than I thought
[12:20] <SpeedEvil> Hmm
[12:20] Action: SpeedEvil idly wonders if this could scale into the kilowatts.
[12:20] <Laurenceb> today reception we're going to be designing nuclear reactors
[12:21] <Laurenceb> *blue peter presenter* heres one we made earlier
[12:21] Action: SpeedEvil wanders out to play with solar.
[12:24] Action: hibby puts down the fiddle and figures tis time to resume wriing
[12:26] <fsphil> mattltm, I've nothing that can tx packets
[12:26] <fsphil> though it sounds like fun
[12:26] <fsphil> give my 2m yagi some exercise
[12:36] <mattltm> fsphil: Maybe some other sat?
[12:36] <mattltm> for voice?
[12:37] <Upu> afternoon guys
[12:37] <mattltm> Hi Upu.
[12:37] <Upu> just playing round with some radio test code, tried to get 1200 baud via NTX but not really decoding all that well :)
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[13:08] <fsphil> mattltm, ooh VO-52 is popular but difficult with the frequency shifts
[13:08] <fsphil> AO-51 is offline I think
[13:09] <fsphil> lemme see
[13:10] <fsphil> next pass of VO-52 isn't for a few hours
[13:12] <fsphil> There's AO-27 too
[13:13] <fsphil> the next pass is on the hour
[13:14] <hibby> i can do most satellites
[13:15] <hibby> when I get my lazy ass into the office... heading in now
[13:15] <fsphil> lol
[13:15] <fsphil> I've never done satellites before
[13:16] <fsphil> but I like the idea I don't need big power :)
[13:17] <hibby> indeed. STAC can do ISS on .5W on a good day
[13:17] <NigeyS> phil i need to post your radio back to you at some point
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[13:19] <fsphil> indeedy, where you able to test your own at distance yet/
[13:19] <NigeyS> yup, all is good
[13:19] <NigeyS> dumb user error
[13:19] <NigeyS> and shite location i think is the result
[13:19] <fsphil> ooh NigeyS, the AO-27 downlink is in the 70cm band
[13:19] <mattltm> ohhh..
[13:19] <NigeyS> oo
[13:20] <NigeyS> time, direction, detailed instructions for a noob? :P
[13:20] <fsphil> the satellite seems to work on a schedule, so it might not be on
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[13:20] <fsphil> http://www.amsat.org/amsat-new/tools/predict/
[13:20] <NigeyS> oh yey i can listen to more static, im quite liking it
[13:20] <mattltm> fsphil: you want to create a new channel so we chan get setup for working the sat away from the HAB stuff?
[13:23] <fsphil> #hamaltitude
[13:27] hburger (4f43e8f4@gateway/web/freenode/ip.79.67.232.244) joined #highaltitude.
[13:27] <hburger> Where did you purchase your helium from?
[13:28] <hburger> Any tips? I'm loking at PT10 cylinders... cheapest I can find is around £70.
[13:28] <hburger> Rental... are there any other ways of getting?
[13:28] <NigeyS> you can try Air Products .. or BOC ?
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[13:29] <hburger> is that where you got yours from?
[13:29] <NigeyS> BOC yup
[13:29] x-f (~x-f@taburete.zetcom.lv) joined #highaltitude.
[13:30] <NigeyS> they do a V size for £55 + vat
[13:30] <hburger> V size, is that big/small?
[13:30] <hburger> Ah, I see.
[13:30] <hburger> http://www.boconline.co.uk/products/products_by_type/balloon_gas_equipment/balloon_gas.asp
[13:30] <hburger> Order online or by contact?
[13:30] <NigeyS> contact
[13:31] <NigeyS> you should have a localish retailer
[13:31] <NigeyS> just dont get it delivered!
[13:31] <NigeyS> 50quid delivery charge
[13:31] <mattltm> BRB...
[13:31] <hburger> :O
[13:32] <hburger> Okay! Thanks NigeyS!!
[13:32] <NigeyS> np
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[13:45] Action: hibby activates the satellite station
[13:46] <hibby> got an offer of a qsl card from a shortwave listener
[13:47] <fsphil> going to try AO-27 in a few minutes
[13:47] <fsphil> if I get setup in time
[13:50] <hibby> 10 mins till it crosses me
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[14:03] <hibby> ao-27 be overhead
[14:04] <Upu> Right if we get anyone who needs some pointers on linking NTX2 up to Arduno : http://ava.upuaut.net/?p=101
[14:05] <hibby> Upu: what did you use for your circuit diagram there?
[14:05] smea (~smealum@89-156-20-102.rev.numericable.fr) joined #highaltitude.
[14:05] <Upu> just a screen grab from Eagle CAD
[14:05] <hibby> cool
[14:05] <hibby> nice guide
[14:05] <Upu> but I know the radio is a bit that confuses some people so through a sample guide with code would help
[14:07] <hibby> ao-27 seems quiet...
[14:07] <Upu> whats AO-27 ?
[14:08] <mattltm> Nothing heard here :(
[14:08] <mattltm> Upu:http://www.n2yo.com/?s=22825
[14:08] <mattltm> http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=7&retURL=/satellites/status.php
[14:09] <Upu> what frequency is i ton
[14:09] <Upu> is it on
[14:09] <mattltm> rx on 436.797
[14:09] <mattltm> uplink is on 145.8500
[14:11] <mattltm> Upu: we are playing with voice via satalite over on #hamaltitude
[14:11] <Upu> oh ok
[14:14] <W0OTM> mattltm: whats #hamaltitude
[14:14] <fsphil> temporary irc channel for playing with amateur satellites :)
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[14:36] <NigeyS> hey james
[14:36] <jcoxon> hi Nige
[14:36] <jcoxon> NigeyS,
[14:36] <NigeyS> hehe Nige is fine!
[14:36] <jcoxon> its just that if you do tab completion thats what happens
[14:36] <jcoxon> as there is NigeyS and NigelMoby
[14:37] <NigeyS> ahh, mobiles on a bnc so its always here :/
[14:37] <jonsowman> better than a tonne of join/quit spam :)
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[14:37] <jcoxon> jonsowman, you in cam next week?
[14:37] <NigeyS> oh yes
[14:38] <jonsowman> jcoxon: I am, but I can't guarantee much time at the moment because of exams coming up
[14:38] <jonsowman> but let me know when, and I'll see what I can do :)
[14:38] <NigeyS> eek jonsowman said the E word :O !
[14:38] <jonsowman> hehe
[14:38] <jcoxon> i'd quite like to launch atlas2 next week and if recovered then launch a long duration floater
[14:39] <jonsowman> sounds good
[14:39] <jonsowman> during the week or...?
[14:39] <jcoxon> so atlas2 up/down during the week
[14:39] <jcoxon> easy launch
[14:39] <jcoxon> then next weekend natrium42 is coming to the UK
[14:39] <jcoxon> so perhaps then for the floater
[14:39] <jonsowman> okay cool
[14:40] <jonsowman> well I'll do my best but I've got to put revision/work first unfortunately
[14:40] <jonsowman> as boring as it is
[14:40] <SamSilver> you flying the Spot jcoxon ?
[14:40] <jcoxon> jonsowman, i understand
[14:40] <jcoxon> i'll recruit non-exam people to help as well
[14:40] <jcoxon> SamSilver, indeed
[14:40] <jonsowman> jcoxon: have you asked eroomde?
[14:41] <jcoxon> yeah a while back
[14:41] <jcoxon> will pester him again
[14:41] <jcoxon> he was up for it
[14:41] <NigeyS> jonsowman, ATS-1 is pretty much ready to fly, at your convenience after exams of course.
[14:41] <jcoxon> i'm free all week so can be flexible
[14:41] <jonsowman> okay :)
[14:41] <jonsowman> NigeyS: my exams finish 10th june
[14:41] <jonsowman> so perhaps that weekend? or during the following week?
[14:42] <NigeyS> following week sounds finei, as said, no rush, totally at your convenience
[14:42] <NigeyS> fine*
[14:42] <jonsowman> ok, we'll discuss closer to the time :)
[14:42] <NigeyS> sure :)
[14:42] <NigeyS> james, picochu-1 looks to be next w/end from pontyprydd
[14:43] <jcoxon> 7th may?
[14:43] <NigeyS> yups, just waiting for a friend to confirm travel to the new site
[14:43] <jcoxon> cool
[14:43] <NigeyS> me and matt went to the site i was looking at, way to many low power lines
[14:43] <jcoxon> oh yes
[14:43] <jcoxon> need lots of space
[14:44] <NigeyS> like.. these were at most 20ft up
[14:44] <NigeyS> have a look ...
[14:44] <NigeyS> http://www.youtube.com/watch?v=F-YFqdPSNDk
[14:44] <NigeyS> lovely place, just not good for a foil balloon..lol
[14:45] <jcoxon> eeek
[14:45] <jcoxon> pylons!
[14:45] <NigeyS> lol lots and lots!
[14:46] <NigeyS> and the small matter of those 2 tv towers
[14:46] <NigeyS> can see matts hf antenna in that vid i think
[14:47] <jcoxon> bbiab
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[14:47] <mattltm> Yay for the linked dipole :)
[14:48] <mattltm> And sheep!
[14:48] <jonsowman> wahey, done
[14:48] <NigeyS> haha mint sauce!!!!!!
[14:48] <NigeyS> thats looking mighty fine jon !
[14:49] <jonsowman> hopefully this will be the final revision, lol
[14:49] <NigeyS> lol he says with crossed toes and fingers :P
[14:49] <jonsowman> yeah
[14:49] <NigeyS> never say never!
[14:50] <NigeyS> after a few weeks you'll edit the schematic with a nifty new feature and that will be the final revision .. then a few months later... etc etc lol
[14:50] <jonsowman> hehe
[14:50] <jonsowman> i can see that happening yes
[14:51] <NigeyS> it'll be like the linux kernel .. 2.60.4.5.6.7 ...
[14:51] <jonsowman> lol
[14:51] <mattltm> "Downloading Ubuntu-11.04-desktop-amd64.iso - Remaining time aprox 1680h 21m"
[14:51] <jonsowman> haha
[14:51] <NigeyS> lol matt, back to dialup?
[14:51] <NigeyS> jonsowman, is this your final year at uni?
[14:51] <mattltm> feels like it :(
[14:52] <jonsowman> NigeyS: nope, 2nd year
[14:52] <jonsowman> got two more after this!
[14:52] <NigeyS> oh blimey lol
[14:54] <LazyLeopard> Oh dear. Been putting that Ubuntu update off...
[14:55] <NigeyS> mattltm, no tmuch faster here, 240KBps from virgins own mirror :/
[14:56] <NigeyS> LazyLeopard, so have i, it's going to have to be done soon though :(
[14:56] <Upu> is that your source or your link thats slow ?
[14:56] <NigeyS> i'd be inclined to say virgin are throttling mine, dunno about matts
[14:56] <LazyLeopard> Hmmm... Something to start at 0-dark-silly before4 going to bed, I guess...
[14:57] <Upu> Virgin throttling Never!
[14:57] <NigeyS> if i goto an ie site i get 3.5MBps
[14:57] <NigeyS> 27,630,736 3.43M/s eta 21m 39s
[14:57] <Upu> you got a direct URL ?
[14:57] <NigeyS> yup
[14:57] <Upu> link
[14:57] <NigeyS> wget http://ftp.heanet.ie/pub/ubuntu-cdimage/releases/11.04/release/ubuntu-11.04-dvd-i386.iso
[14:58] <mattltm> Oh only 800h now :)
[14:58] <Laurenceb> rm /bin/laden
[14:58] <NigeyS> oo its gone up 7.5MBps now yey
[14:59] <NigeyS> laurenceb hehe wonder if he's enjoying his 70 virgins
[14:59] <Upu> 3.7 MB/s - 87.7 MB of 3.9 GB, 17 mins left
[14:59] <Laurenceb> its obvious, they just needed to grep in /bin
[14:59] <NigeyS> lol
[14:59] <Laurenceb> why didnt the cia think of that
[14:59] <NigeyS> 60,403,320 6.49M/s eta 12m 26s
[15:00] <NigeyS> cia .. thinnk .. for themselves .. noo come on now dont be daft :P
[15:10] <mattltm> oh, only 313h 11min now.
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[15:50] <Upu> Who's was GAGA ?
[15:51] <mattltm> Craig? Maybe?
[15:51] <mattltm> No. Ignore me.
[15:51] <Upu> ok
[15:51] <Upu> :)
[15:52] <mattltm> Craig was Artemis.
[15:52] <SamSilver> bbl
[15:52] <Upu> jgc
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[16:04] <Upu> right thats enough blog updates for today
[16:06] <mattltm> NigeyS: You still here?
[16:06] <NigeyS> yup yup
[16:07] <mattltm> The rg58 that I left with you... What connectors does it have on it?
[16:12] <NigeyS> let me check
[16:13] <NigeyS> bnc and ntype
[16:13] <mattltm> Ok. Ta.
[16:20] <NigeyS> you need it back ?
[16:23] <mattltm> Nope.
[16:24] <mattltm> Just checking that you can use it with what im sending you.
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[16:46] <NigeyS> ooo
[16:46] <NigeyS> any clues? lol
[16:47] <mattltm> No.
[16:48] <cuddykid> upu, link to blog?
[16:48] <Upu> ava.upuaut.net
[16:48] <NigeyS> lol matt :(
[16:48] <cuddykid> will take a look!
[16:48] <Upu> afk cooking
[16:53] Action: hibby is rotor maintaining in the station
[16:53] <hibby> feel free to watch @ http://personal.strath.ac.uk/david.hibberd
[16:53] <cuddykid> upu, great blog!!
[16:55] <cuddykid> hibby, nice starbucks mug!
[16:55] <hibby> I love the mug, don't like the company much
[16:55] <hibby> lol
[16:55] <cuddykid> lol
[16:56] <fsphil> mah, more monitors than me
[16:56] <hibby> 6 screens in this room
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[16:56] <Dan-K2VOL> looks cool hibby
[16:57] <MNSP> hello all :)
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[16:57] <hibby> i hear the iss
[16:57] <NigeyS> lots of cables n stuff...
[16:59] <hibby> just how I like it
[17:00] <fsphil> decoding
[17:01] <fsphil> 2I0VAX using it
[17:07] Action: hibby must be going mental
[17:08] <hibby> i could swear there were jumpers for settings in these rotors
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[17:11] <jcoxon> evening all
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[17:12] <SpeedEvil> Evening.
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[17:13] <jcoxon> ping Dan-K2VOL
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[17:26] <SpeedEvil> Laurenceb: Laurenceb_: http://www.eetimes.com/design/medical-design/4215412/Developing-the-world-s-first-real-time-3D-OCT-medical-imaging-system-?cid=NL_PlanetAnalog&Ecosystem=analog-design
[17:26] <SpeedEvil> This team created the worlds first real-time 3D OCT imaging system by using optical coherence tomography (OCT) and a 320-channel data acquisition system combining NI FlexRIO field-programmable gate array (FPGA) hardware and GPU processing, .
[17:30] <Laurenceb> http://sine.ni.com/cs/app/doc/p/id/cs-13387
[17:30] <Laurenceb> interesting
[17:31] <Laurenceb> scanned laser optical coherence
[17:31] <SpeedEvil> 3mm depth
[17:31] <SpeedEvil> 25um voxels
[17:31] <Laurenceb> i was interested in using it for 3D airflow velocity over large ranges
[17:32] <Laurenceb> using cheap ebay laser galvos and a cheap laser put into single mode operation
[17:32] <SpeedEvil> I would guess cheap isn't that much of a goal for above.
[17:35] <staylo> Thermal detector :)
[17:36] <Laurenceb> staylo: i was thinking to record wind velocity in 3D
[17:37] <Laurenceb> ie wind velocity in each voxel
[17:37] <SpeedEvil> That'd be fun for DIY wind tunnels
[17:37] <SpeedEvil> Also really fun to measure cars.
[17:38] <SpeedEvil> You could set it up next to a road, and measure aerodynamics from the turbulence
[17:41] <Laurenceb> darpa built something similar for tracing snipers
[17:41] <Laurenceb> bullet leaves a trail of turbulence
[17:42] <Dan-K2VOL> hey jcoxon
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[17:58] <jcoxon> fsphil, http://hackaday.com/2011/05/02/scout-the-autonomous-transatlantic-boat/#more-41987
[17:59] <Dan-K2VOL> hey jcoxon
[18:00] <Laurenceb> nice
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[18:24] <jcoxon> okay here is a fun question to debate
[18:24] <jcoxon> so i've got a payload that might go on a long trip
[18:24] <jcoxon> slight chance of a wet landing
[18:25] <jcoxon> how do we maximise its survivability
[18:25] <fsphil> silly internet
[18:25] <fsphil> jcoxon, that boat looks sweet
[18:25] <jcoxon> fsphil, its usully your fault remember
[18:25] Nick change: mynick_ -> danielsaul
[18:25] <Zuph> jcoxon: How long a trip?
[18:25] <fsphil> muhaha
[18:25] <fsphil> the internet is allergic to me :)
[18:25] <jcoxon> well atlas2 flight 2 will be a long duration flight
[18:26] <cuddykid> that boat is so cool!
[18:26] <Zuph> and does survivability mean Electronics Intact and reusable, or Data Intact?
[18:26] <jcoxon> electronics, there isn't any onboard data as such
[18:26] <fsphil> meaning the spot can survive?
[18:27] <jcoxon> so i'm going for the polystyrene box
[18:27] <jcoxon> unmodified
[18:27] <jcoxon> with a tight fitting lid
[18:27] <Zuph> Spray-on conformal coating. If nothing needs air circulation, maybe some spray-on expanding foam.
[18:28] <jcoxon> and there will be no holes in the bottom of the box
[18:28] <jcoxon> antenna wire + sensors out the top
[18:29] <jcoxon> electronics + batteries at the bottom
[18:29] <Zuph> Honestly, if you can, just pot everything in with that expanding foam. Don't expect easy recovery of stuff though :)
[18:31] <W0OTM> why does everyone use a -10 or -11 for their APRS ID? XXXXX-10 or XXXXX-11
[18:31] <BrainDamage> buind a giant concrete slab that covers 2sigma the forseen path around the average
[18:31] <jcoxon> Zuph, wonder what will happen about pressure
[18:36] <Zuph> jcoxon: Ooh, good point
[18:36] <Zuph> That could get interesting...
[18:37] <Zuph> Any air holes are going to fill it with water.
[18:37] <Zuph> So conformal coating + making sure it floats no matter how full it is
[18:38] <jcoxon> i was thinking about something like gortex
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[18:39] <jcoxon> i think hot glue seal of the box
[18:40] <fsphil> would be the easiest way, and reversible too
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[18:41] <jcoxon> silica gel is just too slow
[18:41] <fsphil> might not do so well in salt water though
[18:41] <jcoxon> i suspect
[18:42] <jcoxon> with the SPoT we could potentially track when in the sea
[18:44] <jcoxon> would clingfilm help at all
[18:45] <fsphil> doubt it
[18:47] <jcoxon> hopefully the box will be sufficient
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[18:52] <fsphil> what about the foam used in floats?
[18:52] <fsphil> it's a bit heavy mind
[18:55] <LazyLeopard> W0OTM: In the APRS spec, -9 is associated with a car, -10 with a motorcycle and -11 with a balloon
[18:56] <fsphil> space station uses -4, RS0ISS-4
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[18:57] <LazyLeopard> ...associated in that bit of spec with... a bicycle. ;)
[18:58] <fsphil> that's some bike lol
[18:58] <LazyLeopard> Mind, those associations are just for default characters, and characters can be changed. ;)
[18:59] <LazyLeopard> Pedal into orbit! :)
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[19:02] <chembrow> evenin
[19:02] <jcoxon> time for work
[19:02] <jcoxon> cya all
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[19:05] <fsphil> hi hi chembrow's
[19:06] <chembrow_> hi fsphil
[19:06] <chembrow_> I've not been around much over the past few weeks, what with training courses and holidays. has much been happening?
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[19:08] <fsphil> not a huge amount
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[19:08] <fsphil> some launches being prepared
[19:09] <chembrow> hopefully I'll be looking for mine soon. just need to source a balloon and chute
[19:10] <chembrow> but dang the balloons are expensive for something disposable
[19:12] <NigeyS> hm my parachute actually opens with a bag of sugar attatched
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[19:35] <W0OTM> fsphil: thanks for the info
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[19:43] <Lunar_Lander> hello
[19:44] <natrium42> oy vey
[19:44] <natrium42> hi Lunar_Lander
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[19:45] <Lunar_Lander> hi
[19:46] <natrium42> sup? any launches i missed?
[19:46] <Lunar_Lander> I don't think so
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[20:10] <Futurity> Hi
[20:10] <Futurity> My payload work has officially started
[20:11] <Lunar_Lander> hello Futurity
[20:11] <Lunar_Lander> cool!
[20:11] <Futurity> Arduino Uno listening to NMEA from a Garmin GPS through a RS232 level to TTL level :)
[20:12] <Futurity> i know very simple stuff, but quite chuffed :)
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[20:12] <Futurity> Lunar_Lander: Hi
[20:12] <Lunar_Lander> I got an uno as well
[20:12] <Futurity> I'm Neil BTW, chap with the camera that filmed Robbert Harrison's balloon bursting
[20:12] <Futurity> Great to hear that we've both chosen the same solution ;)
[20:13] <Futurity> Ed strongly recommended the Uno even though I think Cambridge Uni use mbed (i think(
[20:14] <Futurity> Right now I have a little program that simply reads a char from the GPS through the RX port and outputs it to the TX port which I can view on the serial monitor
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[20:16] <Futurity> Lunar_Lander: how's your Uno project coming along?
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[20:16] <Dan-K2VOL> speaking of arduinos, has anyone here written a 'library' for arduino?
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[20:17] <Futurity> Not yet. very early days, but I'm a programmer by trade so it won't be long
[20:17] <MNSP> hello all :)
[20:17] <Futurity> MNSP: Hi
[20:18] <MNSP> hows everyone?
[20:18] <Futurity> Fine
[20:18] <Futurity> great weather in the UK
[20:19] <MNSP> oh yes indeedy
[20:19] <Futurity> not sure how it effects balloon launches though
[20:19] <MNSP> No Ican't believe it!!! I was gonna make an autonomous boat as my 2nd project :(
[20:20] <LazyLeopard> Blustery winds don't help much, I guess..
[20:20] <fsphil> makes the launch more pleasant :)
[20:20] <fsphil> MNSP, same here
[20:20] <fsphil> actually the boat was my first project, the balloons got in the way
[20:20] <MNSP> It was called sightseer, previously drug-runner which has bad connotations, lol
[20:20] <Futurity> lol autonomous boat. Had the same idea before seeing the balloon stuff
[20:21] <Futurity> could have called it smuggler
[20:21] <Futurity> or duty free
[20:21] <MNSP> lol, duty free
[20:21] <fsphil> I called mine Moby
[20:21] <Futurity> thing is it'll have to be fairly large to handle waves at sea
[20:22] <MNSP> the idea was for it to sail off and take pictures of coastline
[20:22] <Futurity> if you chaps are still looking to build one, I don't mine helping
[20:22] <Futurity> great idea
[20:22] <Futurity> you could keep the coast always on one side of the boat and just take photos
[20:22] <Futurity> wouldn't have to move it
[20:23] <Futurity> the camera i mean
[20:23] <MNSP> ah no, I meant like a target country, France to start but then who knows
[20:23] <MNSP> current is gonna be the killer though, I would imagine
[20:23] <Lunar_Lander> Futurity can you hang on for a few more minutes please?
[20:24] <Futurity> Lunar_lander: sure no problem
[20:24] <MNSP> how far did you get with yours fsphil?
[20:24] <Futurity> well a sealed boat with solar panels on the top
[20:24] <Futurity> to keep it all topped up
[20:25] <MNSP> my idea was to have solar and wind power
[20:25] <fsphil> MNSP, got some solar panels, and a toy boat and some radio modules
[20:25] <fsphil> not much futher than that
[20:25] <Futurity> the thing is that you could check a cheap laptop in there
[20:25] <Futurity> but then the current would be a lot higher
[20:25] <Futurity> the other problem is that i don't sail
[20:25] <Futurity> so testing becomes a problem
[20:26] <MNSP> funnily enough i was thinking about this just today... obstacle avoidance would be important
[20:26] <Futurity> i think you'd have to program in shipping lanes and just hope for the best
[20:26] <MNSP> are we talking about electric current or wavey type currents?
[20:26] <Futurity> electric
[20:26] <fsphil> a small linux arm board would do fine
[20:26] <MNSP> I was talking about wavey types
[20:27] <fsphil> or an AVR that can drive the boat, while the computer sleeps
[20:27] <Futurity> yes linux would give a lot more power and flexibility for code and data storage
[20:27] <MNSP> motors would have to be strong enough to deal with
[20:27] <Futurity> i'm sure the avr could get you from A to B ok
[20:28] <fsphil> yea, process GPS - drive motors
[20:28] <Futurity> with SD storage I think you could code it quite easily to avoid places
[20:28] <Futurity> and steer ;)
[20:28] <MNSP> I was thinking return would be...
[20:29] <MNSP> come into gsm range, txt owner, then await return code, when received, it comes in
[20:29] <Futurity> good idea
[20:30] <MNSP> with a catamaran (sp?) stryle double hull thingy
[20:30] <Futurity> depends if you want to be detected or not
[20:30] <MNSP> which would give a nice platform in the middle for solar and wind generators
[20:31] <Futurity> true
[20:31] <MNSP> how do you mean futurity?
[20:31] <Futurity> not sure how well a small catamaran would work with waves
[20:31] <Futurity> i was wondering if it would be easier to go under water
[20:32] <MNSP> hmm good point :(
[20:32] <Futurity> i.e. on top of the surface
[20:32] <Futurity> well top of boat on serface
[20:32] <Futurity> rest underwaterline
[20:32] <MNSP> I did start on this trainof thought after thinking about a semi-submersible
[20:32] <Futurity> i'm guessing this may help go under the waves (well high waves)
[20:32] <MNSP> after thinking about autonomous submersible
[20:33] <Futurity> you'd need to have the solar panels out of the water
[20:33] <Futurity> but they could just be on the surface with everything else under water
[20:34] <MNSP> I read somewhere about someone doing just that, they had a line to float which had their solar and gps
[20:35] <Futurity> Its a great dream project, but without any main goal, its a lot more effort for a boat than it is for a balloon
[20:35] <Futurity> the signal doesn't go far at ground level
[20:36] <MNSP> well quite, I did say it was my project b :)
[20:36] <Futurity> lol
[20:36] <Futurity> very interesting project though
[20:37] <MNSP> I think so, but then I haven't even launched my balloon yet
[20:37] <Futurity> always thought it would be fun to add a shark fin and chase the cambridge / oxford boat race
[20:37] <MNSP> LOL
[20:37] <Futurity> i've done step 1
[20:37] <Futurity> if that
[20:37] <Futurity> i.e. bought an Arduino Uno
[20:37] <MNSP> oh yeah?
[20:38] <Futurity> and am echoing the signal from a Garmin GPS back though the AVR chip to the serial monitor
[20:38] <MNSP> ah right, did you say you have a programming background futurity?
[20:38] <Futurity> had to build a circuit to comvert the rs232 voltages down to the AVR ttl voltages
[20:38] <Futurity> yes been programming for years
[20:38] <Futurity> since 10 years old
[20:39] <Futurity> now 40
[20:39] <MNSP> and you know about electronics too
[20:39] <Futurity> no electronic experience really
[20:39] <Futurity> but have a friend who does electronic design as his business
[20:40] <MNSP> I wonder if there is anyone else on here that doesn't have a background in programming, electronics, engineering or ham?
[20:40] <MNSP> apart from me I mean
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[20:41] <Futurity> i do basic HAM still
[20:41] <Futurity> VHF and UHF only though
[20:41] <Futurity> i think most people here do their own programming, electronics and ham stuff
[20:42] <MNSP> I feel inadequate now
[20:42] <MNSP> lol
[20:43] <fsphil> I got into radio because of the balloon stuff
[20:43] <fsphil> was always interested in it though
[20:43] <Futurity> same here
[20:44] <Futurity> good to know how you may effect other radio users before you transmit
[20:44] <fsphil> ever since I saw an old Mac receiving a satellite image from one of the old Meteosat weather sats
[20:44] <MNSP> have ot that slim book that was recomended for ham, but not gone through it yet
[20:46] <MNSP> I was impressed by that mars rover pic the other day though fsphil put up
[20:46] <fsphil> SSTV is great
[20:47] <fsphil> it's been used on balloon flights before
[20:48] <MNSP> hmm, mental note.. must look into
[20:48] <Futurity> is the satellite stuff UHF?
[20:48] <Futurity> SSB?
[20:48] <fsphil> some are USB, some FM
[20:48] <fsphil> VHF or UHF
[20:48] <Futurity> Cool :)
[20:48] <fsphil> there used to be some HF sats, not sure if they're active anymore
[20:49] <Futurity> I have VHF and UHF FM
[20:49] <fsphil> we're playing with satellites in #hamaltitude atm
[20:49] <Futurity> UHF SSB and CW as well
[20:49] <Futurity> i think i need to read up on it first
[20:50] <Futurity> are there any geostationary sat data feeds?
[20:50] <mattltm> MNSP: I dont have a relevent background.
[20:50] <fsphil> good question. I doubt it
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[20:50] <MNSP> YAY!
[20:51] <Futurity> i suppose weather sats might be geostationary
[20:51] <Futurity> or they may just fly all over the planet and be able to take photos as they pass over heard
[20:52] <mattltm> APT satalites are polar orbit.
[20:52] <mattltm> APT weather sats that is
[20:53] <mattltm> Automatic Picture Transmission
[20:53] <Lunar_Lander> hey mattltm
[20:53] <Lunar_Lander> Futurity? sorry for the delay!
[20:53] <russss> meteosat is geostationary.
[20:53] <Lunar_Lander> I got all the stuff still disassembled here Futurity
[20:53] <Futurity> Lunar_Lander: no problem
[20:54] <fsphil> do the geostationary weather sats still transmit analogue images?
[20:54] <mattltm> Yes Meteosat is geostationary. MetOp is polar orbit.
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[20:54] <Lunar_Lander> in the meantime it is not only Meteosat
[20:54] <Lunar_Lander> MSG
[20:55] <Lunar_Lander> it is now
[20:55] <Lunar_Lander> and MTG in development
[20:55] <mattltm> fsphil: Yes. They work kinda like a fax machine, scanning and sending. I have an RX here for APT reception..
[20:55] <mattltm> http://www.geo-web.org.uk/apt.html
[20:55] <Lunar_Lander> cool!
[20:55] <Lunar_Lander> APT was onboard all weather satellites like from
[20:55] <Lunar_Lander> Tiros 3 on?
[20:55] <mattltm> You can RX the images with a scanner but the results are poor due to the uniqe bandwidth of the APT transmissions.
[20:56] <russss> I think you can receive signals over the air from meteosat and GOES too.
[20:57] <russss> but, you can also download NASA's stuff pretty much immediately anyway, so it seems a bit pointless these days.
[20:57] <russss> http://rapidfire.sci.gsfc.nasa.gov/subsets/?subset=United_Kingdom_Ireland
[20:57] <fsphil> I've tried receiving LEO sats with the 817 - yea it didn't work :)
[20:58] <SpeedEvil> On that topic.
[20:58] <fsphil> gonna try with the funcube dongle some say
[20:58] <SpeedEvil> Is there any rapid geostationary imagery of the UK?
[20:58] <SpeedEvil> Ideally in mediaum and longwave IR
[20:58] <MNSP> cheers for thos links russs and mattltm
[20:58] <russss> SpeedEvil: hmm, GOES/Meteosat might do that for you.
[20:58] <mattltm> MNSP: The best place for weather sat info is here... http://www.geo-web.org.uk/
[20:59] <MNSP> ta
[20:59] <Lunar_Lander> Futurity and how far has your system evolved?
[20:59] Action: SpeedEvil wishes he had a free kilo in GEO.
[20:59] <Futurity> right now i can read the GPS data
[20:59] <Futurity> that's all :(
[21:00] <MNSP> brb
[21:00] <Futurity> i'm looking to access / borrow other's code as I think the ptotocol implementation isn't simple
[21:00] <Lunar_Lander> ah
[21:01] <Futurity> but once i have that i suspect it'll be quick getting from there to a working prototype
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[21:05] <Lunar_Lander> yes
[21:05] <Lunar_Lander> btw
[21:05] <Lunar_Lander> are those good? http://www.dealextreme.com/p/breadboard-jumper-wires-for-electronic-diy-70-cable-pack-80208
[21:05] <SpeedEvil> I think I have those.
[21:05] <SpeedEvil> They'rer OK
[21:06] <Lunar_Lander> cool
[21:06] <SpeedEvil> dx has lots of fun stuff
[21:06] <SpeedEvil> have you seen their new GPSs
[21:06] <Lunar_Lander> no, not yet
[21:07] <SpeedEvil> http://www.dealextreme.com/p/em-411-gps-engine-board-module-with-sirf-star-iii-chipset-80037
[21:07] <SpeedEvil> Thoug hthey have some at half this price
[21:07] <Futurity> chaps i need to go
[21:07] <Futurity> ttfn
[21:07] <Lunar_Lander> cu Futurity
[21:08] <Lunar_Lander> this is a full GPS?
[21:08] <Futurity> cu Lunar_Lander
[21:08] <Lunar_Lander> NigeyS ? Is soldering hard? mattltm told me to ask you
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[21:08] <SpeedEvil> Lunar_Lander: yes
[21:09] <Lunar_Lander> oh
[21:09] <Lunar_Lander> well it surely won't be harder than quantum mechanics
[21:09] <Lunar_Lander> :P
[21:09] <SpeedEvil> http://www.futurlec.com/EM-411.shtml
[21:09] <mattltm> Lol, Lunar_Lander, you would be suprised :)
[21:10] <Lunar_Lander> yeah
[21:10] <SpeedEvil> Nice easy pinout, and you can rip the little plug apart
[21:10] <Lunar_Lander> you mean SMD now?
[21:10] <hibby> it's a different kind of difficult from quantum mech
[21:11] <Lunar_Lander> yeah
[21:11] <Lunar_Lander> had they had their scrap boards on SFE, I would have bought one to test it
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[21:12] <SpeedEvil> http://www.dealextreme.com/p/the-smallest-mini-hd-720p-2-0m-pixel-digital-camera-camcorder-59538
[21:12] <SpeedEvil> hmm
[21:16] <Lunar_Lander> LOL I just got an idea for stupid FAQ questions
[21:16] <Lunar_Lander> "Can I die while I am soldering?"
[21:16] <Lunar_Lander> :D
[21:16] <SpeedEvil> yes
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[21:20] <jgrahamc> Evening all
[21:22] <Lunar_Lander> hello jgrahamc
[21:22] <Lunar_Lander> how are you?
[21:22] <fsphil> g'day jgrahamc
[21:22] <jgrahamc> What's new in HAB land?
[21:23] <Lunar_Lander> I got my arduino mega 2560 and the pressure sensor and my headers
[21:23] <jgrahamc> Cool.
[21:23] <Lunar_Lander> yeah
[21:24] <Lunar_Lander> so the next step is soldering the headers to the breakout boards
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[21:25] <jgrahamc> Has anyone here used an Arduino Pro?
[21:29] <Upu> hey jgrahamc I used your pic on my blog http://ava.upuaut.net hope you don't mind
[21:29] <jgrahamc> I don't mind at all
[21:29] <Upu> I linked to your blog
[21:30] <Lunar_Lander> jgrahamc what about GAGA-2?
[21:30] <jgrahamc> Thanks Upu
[21:30] <jgrahamc> Not sure about GAGA-2 yet.
[21:31] <Lunar_Lander> ah
[21:31] <Lunar_Lander> btw Upu and jgrahamc: http://winzenflyer.wordpress.com/2011/05/02/45-years-of-strato-jump-iii/#more-164
[21:31] <jgrahamc> I actually have two other mini-projects to get done first: I want to build an automatic antenna rotator for my Yagi using a couple of old high torque servos and I plan to build a games console using the Arduino that plays Pong and Breakout.
[21:32] <Lunar_Lander> cool
[21:32] <Upu> Cheers Lunar_Lander will read that shortly ISS coming over soon
[21:32] <Lunar_Lander> cool!
[21:33] <MNSP> thats an interesting hd cam
[21:35] <SpeedEvil> I have no idrea if it's actually HD ior ....
[21:36] <MNSP> are you getting one speedevil?
[21:36] <jgrahamc> If I do a GAGA-2 then it's going to be a floater.
[21:36] <SpeedEvil> MNSP: At the moment, I'm at the stage of not paying unless I'm absolutely sure I'm going to use things. I'm trying to pare the budget to the bone.
[21:36] <SpeedEvil> To pay for insulation and other things.
[21:37] <SpeedEvil> For example - the solar hot water system I just got.
[21:37] <MNSP> of course, was just wondering
[21:37] <SpeedEvil> Which will mean I don't have to think so much about economising on hot water.
[21:37] <SpeedEvil> There is way too much on DX to get if I start an order. :)
[21:37] <MNSP> how long till thats set up? Or is it already installed?
[21:38] <MNSP> I've not really use deal extreme before, is it just an online retailer for different people?
[21:39] <SpeedEvil> It's 'installed' in the sense that it's setup heating a barrel of hot water in the garden.
[21:39] <SpeedEvil> And I can go out and get a bucket of hot water.
[21:39] <SpeedEvil> I'm basically doing a test setup where it doesn't really matter if it leaks, and I can screw with stuff.
[21:39] <SpeedEvil> Then it goes on the roof when I have a better idea of how it's going to work.
[21:40] <MNSP> hmm good thinking
[21:40] <SpeedEvil> Current planning is two cylinders, a warm, and a hot one.
[21:41] <SpeedEvil> With heat exchangers between them.
[21:41] <SpeedEvil> So if I want warm water, I run cold water from the mains through an exchanger from the warm cylinder. If this is not hot enough, it also goes through an exchanger from the hot cylinder.
[21:43] <MNSP> nice
[21:43] <SpeedEvil> You can get lots of stuff on ebay if you don't care about its original use.
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[21:45] <MNSP> now ebay I am familiar with :)
[21:46] <SpeedEvil> Minor annoyance is that I realised that the panel I have - if the tubes were spaced at around 2.5* the current, and had a mirror underneath them - they'd output lots more
[21:47] <SpeedEvil> OTOH I'm not sure the heatpipes would cope with the increased heartr flux
[21:49] <MNSP> shoulda, woulda, coulda, didna
[21:49] <MNSP> as long as its working alright for you, theres no prob?
[21:49] <SpeedEvil> I would like twice the output power
[21:50] <SpeedEvil> As it'd add another 2-3 months a year
[21:50] <Chingy> hello people
[21:50] <SpeedEvil> Hello
[21:50] <Chingy> based on the wiki, there's a launch scheduled for next week
[21:51] <Chingy> i'd like to join, anyone know who i should contact ?
[21:51] <fsphil> what's the launch? I've not been paying attention :)
[21:52] <SpeedEvil> Me neither.
[21:52] <SpeedEvil> Chingy: linky?
[21:52] <Chingy> http://www.ukhas.org.uk/general:upcoming_launches
[21:52] <Chingy> atlas 2
[21:52] <Chingy> or am i misunderstanding things ? (might be a possibility as well ^^ )
[21:53] <jgrahamc> That looks right.
[21:53] <jgrahamc> Those are James Coxon's launches.
[21:53] <jgrahamc> Contact him, perhaps via the UKHAS mailing list.
[21:54] <fsphil> ooh he's flying the spot
[21:54] <SpeedEvil> http://xkcd.com/
[21:54] <fsphil> looking forward to seeing that
[21:54] <Chingy> well, i wanted to avoir using the whole mailing list, as i figured it wasn't maybe necessary to spam everyone on this list, but i guess i'll try
[21:54] Action: SpeedEvil hopes _really_ hard that this is wrong.
[21:54] <Chingy> avoid*
[21:55] <Chingy> thanks :)
[21:55] <fsphil> it's a pretty low traffic list, and it's an on-topic question :)
[21:55] <MNSP> what eactly is a 'pinhole floater'?
[21:56] <MNSP> *exactly
[21:56] <SpeedEvil> A normal latex balloon, with a pinhole in it.
[21:56] <SpeedEvil> That is designed to slowly release gas on the way up
[21:56] <SpeedEvil> I have questions on how well it's likely to actually work.
[21:56] <MNSP> oh ok
[21:56] <fsphil> it's worked before
[21:56] <Chingy> and how long is that supposed to float ?
[21:57] <MNSP> well I would guess the pin hole means it stays up longer?
[21:57] <SpeedEvil> Assuming a constant pressure inside, the mass flow through the pinhole goes down as it goes up.
[21:57] <andrew_apex> and the balloon never bursts (if the hole is the right size)
[21:57] <fsphil> it hits a certain altitude, then stops ascending -- quite suddenly too
[21:58] <SpeedEvil> At 10mB it's 1/100th of the flow at sea-level.
[21:58] <SpeedEvil> Err
[21:58] <SpeedEvil> Or is it 1/10th
[21:59] <Chingy> oh ok
[21:59] <andrew_apex> but is the pressure differential not more at high altitude? That's why the latex is more stretched :S ?
[21:59] <MNSP> speaking of which, is there a good way to electronically sense the balloon burst?
[21:59] <andrew_apex> so surely the flow would be greater?
[21:59] <Lunar_Lander> if the lines get slack
[21:59] <SpeedEvil> MNSP: when the balloon starts to go down
[21:59] <SpeedEvil> andrew_apex: Actually, it's less
[21:59] <SpeedEvil> andrew_apex: Try it with a party balloon.
[21:59] <andrew_apex> ah yes - i'd forgotten about the inverse pressure
[22:00] <andrew_apex> makes more sense now :)
[22:00] <SpeedEvil> andrew_apex: Also - the flow through an orifice will basically never exceed the speed of sound
[22:00] <MNSP> LOL, too many tilet joke in this conversation
[22:01] <andrew_apex> SpeedEvil: i wouldn't have thought the flow would be anything like that fast - is it?
[22:01] <SpeedEvil> andrew_apex: So even if you assume a constrant pressure across the orifice, the flow goes down as you decrease the rpessure
[22:01] <andrew_apex> you mean a constant differential pressure?
[22:02] <SpeedEvil> yes
[22:02] <andrew_apex> SpeedEvil: in that case it makes sense
[22:02] <SpeedEvil> I suspect that in real life, the pressure actually rises a little - the differential pressure - shortly before burst. Some of the ascent graphs hint at this.
[22:03] <SpeedEvil> But nobodies yet flown a differential pressure measurement.
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[22:05] <Chingy> makes sense
[22:10] <Lunar_Lander> good night
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[22:12] <MNSP> night chaps :)
[22:13] <Chingy> 'night
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[23:34] <m1x10> hi
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[23:38] <W0OTM> can someone edit the ukhas wiki for me?
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[23:45] <m1x10> is it possible that i have 18-20% relative humidity near my pc?
[23:45] <SpeedEvil1> yes
[23:46] <SpeedEvil1> if it's very dry weather
[23:46] Nick change: SpeedEvil1 -> SpeedEvil
[23:48] <m1x10> Temperature (C): 25
[23:48] <m1x10> Humidity (%): 19
[23:48] <m1x10> Dewpoint (C): -1
[23:49] <W0OTM> ok, Helium has a density of about 0.17Kg/cu m - generating a lift of a bit over 1.0Kg/cu m.
[23:49] <W0OTM> so this mean that 1 cubic meter of He will lift 1000grams?
[23:50] <SpeedEvil> Ballpark, yes
[23:50] <SpeedEvil> m1x10: Now get a glass of water. Fill it with ice and water.
[23:50] <W0OTM> ok, so I have some "party" balloons. how can i measure how much He I am putting in them?
[23:50] <SpeedEvil> m1x10: If it's at 0C, then you will not get condensation on the outside.
[23:50] <SpeedEvil> W0OTM: measure the lift
[23:50] <SpeedEvil> Get some scales.
[23:51] <W0OTM> so fill a balloon and get weights
[23:51] <W0OTM> see how much weight it will lift
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[23:52] <W0OTM> so if 1 balloon lifts 500g, is it fair to assume the balloon holds 1.5cu/m of He?
[23:54] <NigeyS> hm
[23:54] <NigeyS> if it can lift 1kg per m3
[23:55] <NigeyS> then 500 is .5 m3 ?
[23:55] <NigeyS> 500g*
[23:58] <W0OTM> and I need to take into account the balloon weight?
[23:58] <W0OTM> right
[23:59] <NigeyS> think so yup, been trying to work out something similar for the foil balloons i've got
[00:00] --- Tue May 3 2011