[00:06] <jcoxon> night all
[00:06] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) left irc: "Leaving"
[00:22] sYx66 (n=wooh@bas1-kitchener06-1096640668.dsl.bell.ca) joined #highaltitude.
[00:44] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc:
[00:45] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) joined #highaltitude.
[01:01] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc:
[01:05] <natrium42> hrm, they better ship my PCBs tomorrow
[01:38] <Laurenceb> cya all
[01:38] Laurenceb (i=83e3dd23@gateway/web/ajax/mibbit.com/x-28474a7e0577a7d0) left irc: "http://www.mibbit.com ajax IRC Client"
[01:46] <sYx66> are they saying that it might be delayed?
[01:55] <natrium42> nope
[01:56] <natrium42> just wondering whether they will keep their word :P
[02:16] hallam (i=836ff82e@gateway/web/ajax/mibbit.com/x-04d80a605c73a299) left irc: "http://www.mibbit.com ajax IRC Client"
[02:24] hallam (i=836fc8c8@gateway/web/ajax/mibbit.com/x-611a3e35cb2d9e57) joined #highaltitude.
[02:42] hallam (i=836fc8c8@gateway/web/ajax/mibbit.com/x-611a3e35cb2d9e57) left irc: "http://www.mibbit.com ajax IRC Client"
[07:03] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) joined #highaltitude.
[07:07] <jcoxon> morning all
[07:21] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) joined #highaltitude.
[07:26] <jcoxon> hey natrium42
[07:27] Simon-MPFH (n=simon@phantom.mpfh.co.uk) joined #highaltitude.
[07:42] <jcoxon> ooo how good is this one:
[07:42] <jcoxon> http://spacenear.us/gfs/2009-02-24-4.png
[07:42] <jcoxon> that is literally the perfect flight
[08:29] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc:
[08:37] iNatrium (n=mobile@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) joined #highaltitude.
[08:53] iNatrium (n=mobile@CPE000625d867e2-CM0014045885be.cpe.net.cable.rogers.com) left irc: Remote closed the connection
[08:58] <sYx66> awesome!
[09:07] <gordonjcp> nice
[09:42] <jcoxon> :-)
[09:44] <jcoxon> shame we aren't ready
[10:23] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) left irc: "Leaving"
[10:45] Laurenceb (i=83e34f19@gateway/web/ajax/mibbit.com/x-1bdc5d011710e3e9) joined #highaltitude.
[10:56] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) joined #highaltitude.
[11:00] <jcoxon> urgh
[11:00] <jcoxon> googlemail seems to be down
[11:01] <shellevil> jco: how stable are these? How did the day befores forecast of that day look like - is it today?
[11:02] <shellevil> ah - 28th
[11:02] <jcoxon> shellevil, the forecasts?
[11:03] <jcoxon> i reckon they are quite stable
[11:03] <jcoxon> it you follow a particular date through they seem to be pretty good
[11:04] <jcoxon> the 25th is a good example
[11:04] <jcoxon> the trajectory has stabalised over the last 3 days
[11:06] <shellevil> yeah
[11:06] Action: Laurenceb has found the trolls
[11:06] <Laurenceb> http://www.giove.esa.int/images/userpage/GIOVE_M_Overall_Architecture.pdf
[11:06] <shellevil> I wonder if small displacements from the launch site give useful information as to the accuracy of the forecast
[11:06] <jcoxon> oh now thats interesting
[11:07] <shellevil> Say look at the spread of launches 20 miles in every direction.
[11:07] <jcoxon> i was thinking about launch sites today and so ran the lastest set again from a slightly different site
[11:07] <shellevil> On the assumption that weather fronts may not be well predicted to the +-20 miles level
[11:07] <jcoxon> but the thing is these forecasts assume that the balloon is already at 10km alt
[11:08] <shellevil> And if the weather fronts move 20 miles - even if the form of them stays the same - if you're on an edge, you get problems
[11:08] <shellevil> lau: oh - I thought you meant the ones that lurk on bridges.
[11:10] <jcoxon> in some ways we need to combine the hysplit forecasts with the wyoming forecasts, :
[11:10] <jcoxon> run wyoming to get the ascent then hysplit for the leveling off
[11:13] <Laurenceb> ideally we want a custom balloon simulator
[11:14] <jcoxon> ideally
[11:14] <Laurenceb> as altitude isnt going to be stabgle
[11:14] <jcoxon> however for now i think hysplit will give us the best info for when is best to launch
[11:14] <jcoxon> and i'll combine that with ground weather as well
[11:14] <Laurenceb> yeah its going to be close
[11:15] <Laurenceb> shall I order a new AD7746?
[11:16] <jcoxon> Laurenceb, do you feel thats its the best option?
[11:16] <Laurenceb> yeah
[11:16] <jcoxon> then yeah go for it
[11:16] <Laurenceb> but as far as the valve goes, if we want to build something from scratch rocketboy has a good plan
[11:16] <Laurenceb> did you get a quote?
[11:16] <jcoxon> yeah he has sent me the stuff
[11:17] <jcoxon> Laurenceb, no quote yet
[11:17] <jcoxon> Laurenceb, i'll have a play with the solenoid and ball bearing
[11:17] <jcoxon> i reckon it'll be as good as anything we can buy
[11:17] <Laurenceb> youd need to make some sort of enclosure
[11:17] <Laurenceb> really needs a lathe :-/
[11:17] <Laurenceb> yeah I think so too
[11:18] <jcoxon> SpeedEvil, suggested a funnel
[11:18] <jcoxon> so that you don't need so much of an perfectly fitting enclosure
[11:18] <Laurenceb> think its a case of having a trawl round RS
[11:18] <jcoxon> yup
[11:18] <Laurenceb> and also look at some soap dispensers
[11:19] <Laurenceb> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=5279784
[11:22] <jcoxon> okay there are some jobs we need to start sorting out
[11:22] <jcoxon> 1) Name of Mission
[11:22] <Laurenceb> ooh RS sell carbon fibre
[11:23] <jcoxon> 2) Make a website + intergrate tracker
[11:23] <Laurenceb> yeah
[11:24] <Laurenceb> I think Steve would be best placed to make a vale
[11:24] <Laurenceb> he's got a lathe IIRC
[11:25] <jcoxon> he's also got this radio to sort out
[11:25] <Laurenceb> yeah
[11:25] <jcoxon> i'll see what i can do and if not pass it back
[11:26] <Laurenceb> how far away from the ball bearing does the solenoid need to be?
[11:27] <jcoxon> not sure
[11:27] <Laurenceb> just wondering if the solenoid needs to be immersed in ballast
[11:29] <jcoxon> its probably not a good idea to immerse it in the ballast
[11:29] <Laurenceb> the nice thing about sensortechnics is its 3 way
[11:29] <shellevil> My preliminary design was:
[11:29] <Laurenceb> so you can have a trailing line that developes a -ive pressure
[11:31] <shellevil> A solenoid - say 2cm dia * 3cm long, with a 1cm hole through it. A 1mm thickness iron cylinder fitted into this extending 0.5cm past each end. A iron circle covering the top of the solenoid, and a tube going down coaxially over the outside of the solenoid, extending to 1cm below the end of the solenoid
[11:32] <shellevil> Then a plate over the bottom end of the solenoid. Then a 9mm pipe through the solenoid
[11:33] <shellevil> At the bottom of the pipe - some 1.5cm from the end of the solenoid is a ball bearing/funnel arrangement.
[11:33] <shellevil> The solenoid/iron creates a large magnetic flux across the tube just above the ball bearing, which causes it to leap up when activated
[11:34] <Laurenceb> yeah thats kind of our idea, only more complex
[11:35] <jcoxon> Laurenceb, shellevil suggested it in teh first place :-)
[11:35] <Laurenceb> http://wiki.ukhas.org.uk/_media/ideas:ethanol.png?cache=cache
[11:35] <shellevil> It sounds way more complex than it is :)
[11:36] <jcoxon> Laurenceb, hehe
[11:36] <Laurenceb> oh that plan uses a magnet
[11:37] <jcoxon> in your diagram is that therefore a normally closed system?
[11:37] <Laurenceb> yep
[11:37] <jcoxon> where is the output?
[11:37] <Laurenceb> ah the bottom
[11:37] <jcoxon> okay
[11:38] <Laurenceb> yeah it says ball bearing but you could use a magnet
[11:38] <jcoxon> to make sure it lifts?
[11:38] <Laurenceb> yep
[11:38] <Laurenceb> just need some plastic tube of the right diameters
[11:38] <jcoxon> yeah
[11:38] <jcoxon> just looking for that now
[11:38] <Laurenceb> and an o ring
[11:39] <Laurenceb> check your bathroom :P
[11:39] <Laurenceb> also ebay for n45 magnets
[11:39] <jcoxon> shellevil, in you plan do you run the ballast through the solenoid's centre?
[11:40] <Laurenceb> http://www.unitednuclear.com/m0.250r.jpg
[11:42] <SpeedEvil> jcoxon: pic - moment
[11:42] <Laurenceb> oh noes http://news.bbc.co.uk/1/hi/sci/tech/7907570.stm
[11:42] <jcoxon> thanks
[11:43] <SpeedEvil> http://www.mauve.plus.com/pict0163.jpg
[11:43] <SpeedEvil> the black border round the coil is the steel/iron magnetic bits
[11:43] <Laurenceb> hmm yeah the iron should help
[11:43] <SpeedEvil> and along the middle
[11:44] <Laurenceb> but youd have to be careful it was soft iron
[11:44] <SpeedEvil> yeah
[11:44] <Laurenceb> permanent magnetisation would screw things up
[11:44] <SpeedEvil> Just rip open an old transofrmer
[11:44] <SpeedEvil> lots htere
[11:44] <Laurenceb> yeah
[11:45] <jcoxon> SpeedEvil, looks good
[11:45] <Laurenceb> not sure whats best, magnet or iron core
[11:45] <Laurenceb> prob a magnet I think
[11:45] <jcoxon> i'll have a play around
[11:45] <Laurenceb> you couldnt have both
[11:45] <SpeedEvil> Laurenceb: you mean for the moving part in the above?
[11:45] <jcoxon> http://news.bbc.co.uk/1/hi/technology/7907583.stm?lss
[11:46] <Laurenceb> well no iron and a magnet for the moving part, or iron in the center and a ball bearing
[11:46] <Laurenceb> I think the former would give greater forces per coil flux
[11:46] <SpeedEvil> iron in both cases greatly increases the flux
[11:46] <SpeedEvil> by orders of magnitude
[11:46] <Laurenceb> yeah
[11:47] <Laurenceb> I didnt realise the effect was that great...
[11:48] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) joined #highaltitude.
[11:48] <jcoxon> one thing i like about this system is that the ball bearing will be immersed in ethanol so shouldn't freeze
[11:48] <Laurenceb> http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/#bhcurve
[11:48] <Laurenceb> http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/BH_iron.png
[11:49] <SpeedEvil> As a crude analogy, blow on a ball bearing, vs use a straw to blow on it
[11:49] <SpeedEvil> jcoxon: one minor wrinkle I came up with was make it a bit insulated.
[11:50] <Laurenceb> N45 is ~ 1 tesla
[11:50] edmoore (n=edmoore@pomegranate.chu.cam.ac.uk) left irc: Client Quit
[11:50] <jcoxon> yeah thats sensible
[11:50] <Laurenceb> so for a low power device IMO use a N45 cylidrical magnet as the seal
[11:51] <Laurenceb> and a coil on a plastic tube
[11:51] <SpeedEvil> jcoxon: so if by some bizzare means you do get icing, you can heat it up a little
[11:52] <jcoxon> hmmmm glue at altitude in cold weather for long periods of time...
[11:53] <Laurenceb> I'd use epoxy on the valve
[11:53] <Laurenceb> then foam the bonds are more mechanical, so should be fine
[12:02] <jcoxon> sounds good
[12:03] <SpeedEvil> One concern is that you want the surface finsh of the valve/seat and the thermal contraction not to mess things up.
[12:04] <SpeedEvil> so you don't get it contracting differentially by -60C, and jamming
[12:04] <SpeedEvil> stainless/stainless, or PTFE/stainless should be fine though.
[12:06] <Laurenceb> brb
[12:18] <jcoxon> i'm having googlemail withdrawal
[12:35] <jcoxon> ooo its back
[12:35] <jcoxon> bbl
[12:35] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) left irc: "Leaving"
[13:12] josepharmbruster (n=josephar@ left irc: Read error: 113 (No route to host)
[14:56] Action: Laurenceb has ordered free AD7746 samples from AD :P
[15:06] <shellevil> :P
[15:07] <Laurenceb> I can fry them freely
[16:12] <Laurenceb> weather is looking ok for this weekend...
[16:53] hallam (i=836fc8c8@gateway/web/ajax/mibbit.com/x-14218f49053f2516) joined #highaltitude.
[16:58] hallam (i=836fc8c8@gateway/web/ajax/mibbit.com/x-14218f49053f2516) left irc: Client Quit
[17:08] <SpeedEvil> not for a couple of days IIRC
[17:56] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) joined #highaltitude.
[18:05] <Laurenceb> hi jcoxon
[18:05] <jcoxon> hey Laurenceb
[18:05] <Laurenceb> I ordered some AD7746 samples
[18:06] <Laurenceb> free :D
[18:06] <jcoxon> cool
[18:06] <Laurenceb> the weather looks good this weekend
[18:06] <Laurenceb> any plans for a launcvh soon?
[18:06] <jcoxon> the weather looks bad this weekend
[18:06] Hiena (n=Hiena@ joined #highaltitude.
[18:06] <Laurenceb> hehe
[18:07] <jcoxon> wunderground 300mb
[18:07] <jcoxon> ouch
[18:07] <Laurenceb> depends what your looking for I guess, surface wind and 800mb is ok
[18:07] <jcoxon> 300mb 70-80 knots
[18:08] <jcoxon> which is around 9000m
[18:08] <jcoxon> might be okay for a glider drop
[18:11] <Laurenceb> well I'm off, cya
[18:11] Laurenceb (i=83e34f19@gateway/web/ajax/mibbit.com/x-1bdc5d011710e3e9) left irc: "http://www.mibbit.com ajax IRC Client"
[18:13] <SpeedEvil> IIRC the gliders max speed is only 10-20MPH (IAS) or so.
[18:14] <natrium42> hi
[18:14] <jcoxon> i don't think this weekend would be a good time to launch anything
[18:14] <jcoxon> hey natrium42
[18:15] <natrium42> pcbs have shipped --> http://www.fedex.com/Tracking?tracknumbers=723851773280
[18:16] <jcoxon> yah
[18:16] <jcoxon> thats should be a yay
[18:16] <natrium42> :)
[18:16] <natrium42> 48 hours as promised
[18:18] <jcoxon> natrium42, i was thinking we might as well launch from kitchener/waterloo
[18:19] <jcoxon> it doesn't really effect the trajectory and makes it a lot easier for you
[18:19] <natrium42> probably a good idea
[18:19] <jcoxon> and also i can get nice data from the airport near you
[18:19] <natrium42> i have a nice field right beside me
[18:19] <jcoxon> excellent
[18:19] <natrium42> would be easy to setup video broadcasting
[18:20] <jcoxon> ooo that would be good
[18:20] <natrium42> :)
[18:20] <jcoxon> i've thought of a few jobs to do
[18:20] <natrium42> yeah, since more than half of the team is in UK
[18:20] <jcoxon> we need a name
[18:20] <jcoxon> and also a website + intergrated tracker
[18:20] <natrium42> perhaps do a brainstorming on the name?
[18:21] <jcoxon> yup
[18:21] <jcoxon> website wise there are a few people who said they could help out
[18:21] <natrium42> kk, let's whait when more people are on
[18:22] <natrium42> i know that sYx66 was working on accelerating the tracker
[18:22] <jcoxon> oh excellent
[18:22] <natrium42> he says that removing shadows makes it much more faster
[18:22] <natrium42> for example
[18:22] <jcoxon> excellent
[18:23] <jcoxon> we need to work out the distributed system as well
[18:24] <jcoxon> rjharrison suggested just having a webpage
[18:24] <jcoxon> for people to enter data they pick up - therefore they can use their own decoders/ OS
[18:24] <jcoxon> we can still use the python client as well for more 'commited' people e.g. your radio and mine
[18:27] <natrium42> yep
[18:27] <natrium42> coffee time
[18:27] <jcoxon> okay
[18:31] <jcoxon> those who around - we need to think of a name...
[18:47] <shellevil> High Altitude Learning Platform!
[18:48] <Hiena> Cool. Is there any open position?
[18:48] <Hiena> My sources kind of dried up.
[18:49] <shellevil> Polar Occidental Observer Platform
[18:49] <natrium42> ...
[18:49] Action: natrium42 slaps shellevil around a bit with a zeusbot
[18:50] <Hiena> Btw, yesterday i read a accident investigation report about the last year Corvus Corone MKII accident.
[18:51] peddie (n=matthew@PEDDIE.MIT.EDU) joined #highaltitude.
[18:51] <shellevil> Hifloat
[18:51] <Hiena> Kind of scary. The plane basically felt apart in the air killing the pilot and the passenger before the impact.
[18:51] Action: shellevil can't think of proper names.
[18:51] <shellevil> Those are moderately rare - unless someone overstresses the airframe.
[18:52] <natrium42> maybe something with "Royal", since the queen is head of state of both Canada and UK
[18:52] <Hiena> The honeycomb structure broken up from the palm size to A4 size sheets, causing terminal cuts.
[18:53] <jcoxon> natrium42, we have to be careful - don't want any treason... :-p
[18:53] <natrium42> :)
[18:53] <Hiena> The plane done normal flight. No overstress.
[18:53] <shellevil> Royal Balloon Mail?
[18:53] <shellevil> with a postcard to the queen or something.
[18:57] <jcoxon> http://en.wikipedia.org/wiki/Royal_Mail_Steamer
[18:58] <jcoxon> used to run between canada and the UK
[19:00] <shellevil> hie: also a fun fact.
[19:00] <shellevil> Hiena: The cause of the Beijing -> heathrow airliner crashing short of runway due to both engines deciding to idle hasn't been nailed down.
[19:00] <natrium42> zomg, got mah DX order
[19:01] <jcoxon> hi peddie welcome to #highaltitude
[19:01] <shellevil> It seems likely the fuel was restricted somehow by ice, but nobody can work out how that might have occurred.
[19:03] <peddie> thanks, jcoxon
[19:03] <shellevil> welcome!
[19:03] <Hiena> Oh, maybe the tanks watertraps wasn't eptied so long.
[19:06] <Hiena> I saw frozen watertrap in the TU-154s so also could hapens same thing when some wiseass decide to steal a few dozen litre kerosene and tops the tank with a water.
[19:08] <shellevil> Hiena: no - nothing that simple
[19:08] <Hiena> Software failure?
[19:08] <shellevil> Hiena: there are filters that should catch any ice, and if the ice builds up on the filters too much, they are designed to break away and let it through anyway - which hand't happened
[19:09] <shellevil> and the only link between the engines throttles is literally the control stick.
[19:09] <shellevil> seperate resolvers on the stick feed each engine.
[19:09] <jcoxon> http://en.wikipedia.org/wiki/R-100
[19:09] <jcoxon> how about the R102
[19:09] <Hiena> So the problem was at the engine level?
[19:10] <jcoxon> as teh R100 and R101 were designed to be trans-atlantic airships
[19:10] <shellevil> hie: both engines for some undetermined reason went to ~5-10% thrust
[19:10] <shellevil> Hiena: though they were commanded to maximum thrust shortly after it deviated from the flight path
[19:11] <shellevil> Hiena: there was a 10s or so delay between the decay of each engine.
[19:11] <Hiena> Hmm...
[19:11] <shellevil> Hiena: and the fuel all tested fine for water content, no water traps, only anomolous thing is wear in the fuel pump - but they were measured after to still pump to specs
[19:11] <natrium42> shellevil, haha, the spypen "manual" is funny
[19:12] <shellevil> nat: yes :)
[19:12] <shellevil> basically - long press on/off
[19:12] <shellevil> short press - start or stop recording
[19:12] <shellevil> Mine at least seems to be malfunctioning, it won't record >20s or so.
[19:12] <natrium42> ah
[19:12] <natrium42> i can test, got two pens
[19:13] <shellevil> and the reset button is the second little hole below the LED hole
[19:13] <jcoxon> natrium42, http://en.wikipedia.org/wiki/R-100#Trans-Atlantic_Voyage_to_Canada
[19:13] <shellevil> r102 may work.
[19:15] <jcoxon> http://en.wikipedia.org/wiki/R102
[19:15] <jcoxon> :-p
[19:18] <natrium42> haha
[19:25] <jcoxon> http://www.aht.ndirect.co.uk/airships/R102/Index.html
[19:30] <jcoxon> right tis pancake day
[19:30] <jcoxon> time to make lots of pancake
[19:31] <jcoxon> s
[19:31] <jcoxon> bbl
[19:31] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) left irc: "Leaving"
[19:31] <natrium42> nice
[19:31] <natrium42> can i have some?
[19:31] <natrium42> :(
[19:32] borism (n=boris@195-50-201-147-dsl.krw.estpak.ee) joined #highaltitude.
[19:35] <natrium42> shellevil, http://www.globalscaletechnologies.com/c-2-globalscale-technologies-products.aspx
[19:46] <shellevil> interesting
[19:46] <shellevil> what's that connector on the back
[19:46] <shellevil> Oh - mains plug
[19:46] <natrium42> yep
[19:46] <natrium42> probably can take out the PS portion, though
[19:47] <shellevil> Add powerline networking to that...
[19:47] <shellevil> Then again - when it ships...
[19:48] <shellevil> seen the tincantools.com thing?
[19:48] <natrium42> nope
[19:49] <shellevil> http://www.tincantools.com/product.php?productid=16133&cat=0&page=1&featured
[19:49] <natrium42> nice, usb host is all i need :)
[19:51] Hiena (n=Hiena@ left irc: "-=Mi ez a szag? Hippit égettéll?=-"
[20:01] <shellevil> http://www.youtube.com/watch?v=UocB9gT9yp8
[20:02] RocketBoy (n=Steve@ joined #highaltitude.
[20:21] <natrium42> hey RocketBoy
[20:32] <RocketBoy> hi natrium42 - just hacking some MFSK-16 code
[20:32] <natrium42> cool
[20:32] <natrium42> flight computer PCBs got shipped --> http://www.fedex.com/Tracking?tracknumbers=723851773280
[20:33] <natrium42> getting them on thursday
[20:38] <RocketBoy> spiffing - the interface to the transmitter will be 3V cmos level serial at 38400bps? OK?
[20:47] <natrium42> yeah, sounds great
[20:47] <natrium42> PS is regulated at 3.3V
[20:50] <RocketBoy> I need 12V for the TX (but the serial interface can be 3.3V)
[20:53] Xenion (n=robert@p579FCD37.dip.t-dialin.net) joined #highaltitude.
[20:53] <natrium42> exactly 12V?
[20:53] <natrium42> vbat is probably going to be in the range 14V to 8V when completely discharged
[20:54] <natrium42> hmm, maybe less than 14V initially, 12V or so
[20:54] <RocketBoy> na 8V to 14V will be just fine
[20:55] <natrium42> thinking of using eight cells
[20:55] <natrium42> energizer lithium
[20:55] <natrium42> k
[20:56] <natrium42> what will the power draw be and is it constant?
[20:56] <RocketBoy> the more volts the more tx power though
[20:56] <RocketBoy> nope
[20:57] <natrium42> ok, if the mission goes into low power mode (payload has landed into water) we will need to keep power usage down
[20:57] <natrium42> radio will be of no use, only satellite will be used few times per day
[20:58] <RocketBoy> sure - best to power it off - or reduce voltage to 8V
[20:58] <natrium42> k, got the mosfets to power it off
[20:59] <natrium42> but if you have any way of adding an enable pin, please do :)
[21:00] <RocketBoy> sure - I'll see what i can control from the processor - I suspect it will only draw real power when its transmitting a packet
[21:00] <RocketBoy> so no packets = low power
[21:04] <natrium42> alright, cool
[21:25] <natrium42> shellevil, my spypen records for a long time
[21:26] <natrium42> shellevil, maybe you thought that blue LED == recording?
[21:26] <natrium42> it only records when red LED is on
[21:27] <SpeedEvil> blue LED is absolutely certainly recording
[21:27] <natrium42> nope
[21:27] <SpeedEvil> On mine
[21:27] <natrium42> weird
[21:28] <natrium42> it powers off after a while on blue LED
[21:28] <natrium42> on my pen
[21:28] <natrium42> because it's not recording
[21:28] <SpeedEvil> If I press the button for a long press, the red light goes on, blue flashes, then red stays on
[21:28] <SpeedEvil> this is standby
[21:28] <natrium42> just try it with red LED :P
[21:29] <natrium42> red == recording, usually
[21:29] <SpeedEvil> then I tap the button, blue goes on for 8-50 seconds and it shuts off.
[21:29] <natrium42> unless they miswired it for you
[21:29] <SpeedEvil> If during this time I tap the button again, blue goes off, and red comes back on
[21:29] <SpeedEvil> it only records when the blue light is on.
[21:29] <SpeedEvil> It seems to crash sometimes when recording.
[21:30] <SpeedEvil> if it's been recording for >8 seconds or so
[21:30] <SpeedEvil> and I get a red light if it's plugged in.
[21:31] Simon-MPFH (n=simon@phantom.mpfh.co.uk) left irc: "Leaving"
[21:31] <SpeedEvil> have you opened it?
[21:31] <SpeedEvil> On mine, the cap
[21:31] <SpeedEvil> the silver cap on the top can be levered off easily - though not without damaging the finish
[21:32] <SpeedEvil> then you simply push the USB connector through the pen body
[21:32] <SpeedEvil> (making sure you don't snag the battery wires on the clip
[21:32] <SpeedEvil> Mine says PHC001V1.6
[21:32] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) joined #highaltitude.
[21:33] Action: jcoxon is too full
[21:33] <natrium42> haven't opened mine yet
[21:33] <natrium42> @ SpeedEvil :D
[21:34] <natrium42> gotta drop off some packages, bbl
[21:34] Simon-MPFH (n=simon@phantom.mpfh.co.uk) joined #highaltitude.
[21:35] <jcoxon> evening RocketBoy
[21:36] <SpeedEvil> laurenceb: oh - you can - with care - redirect the camera along the long axis of the PCB
[21:36] <SpeedEvil> The red LED is just next to the end
[21:36] <SpeedEvil> the blue one a bit in
[22:04] <natrium42> ?/
[22:06] Xenion (n=robert@p579FCD37.dip.t-dialin.net) left irc: "Verlassend"
[22:08] <natrium42> about 330MB per 12 minutes
[22:16] <jcoxon> natrium42, any thoughts about a name?
[22:16] <natrium42> no good ideas yet
[22:18] <jcoxon> hmmm
[22:19] <RocketBoy> pondhopper
[22:20] <jcoxon> hehe
[22:22] Action: shellevil ponders mythology.
[22:22] <shellevil> Icarus 2?
[22:23] <shellevil> predictable.
[22:23] <jcoxon> rj's launches are Icarus
[22:24] josepharmbruster (n=josephar@ joined #highaltitude.
[22:24] <shellevil> http://en.wikipedia.org/wiki/Princess_Madeleine,_Duchess_of_H%C3%A4lsingland_and_G%C3%A4strikland
[22:24] <shellevil> oops
[22:25] <jcoxon> haha
[22:27] <jcoxon> shellevil, i don't think that would be a good name for a trans-atlantic flight
[22:28] Action: shellevil ponders things that start out high, and fall later.
[22:28] <shellevil> Aha!
[22:28] <natrium42> United Lighter-than-Airlines
[22:28] <shellevil> Lucifer.
[22:29] <natrium42> jcoxon, so got a call from the shipping company
[22:29] <natrium42> it works out best if mark ships it tomorrow morning
[22:29] <natrium42> otherwise the timing will be very off
[22:29] <jcoxon> oh right
[22:30] <natrium42> you think he will do it?
[22:30] <natrium42> i don't want to come off pushy
[22:30] <jcoxon> he should
[22:30] <natrium42> it has been a bit hard scheduling everything
[22:30] <jcoxon> just explain why, and ask to keep you updated
[22:31] <jcoxon> oh i understand,
[22:31] <jcoxon> but once you have them in your hands!
[22:31] <jcoxon> natrium42, have you looked into permission?
[22:31] <natrium42> :)
[22:31] <natrium42> sYx66 is going to handle that
[22:32] <natrium42> dunno if he emailed the contact person yet
[22:32] <jcoxon> okay
[22:32] <natrium42> since we were waiting for the decision on launch location
[22:33] Action: natrium42 pokes sYx66
[22:34] Action: jcoxon consults the list of jobs in his head
[22:35] <natrium42> bbl food
[22:49] <natrium42> back
[22:53] <jcoxon> natrium42, i've just set up a google groups mailing list
[22:58] <natrium42> k, cool
[22:58] <natrium42> joined
[23:01] borism_ (n=boris@195-50-200-227-dsl.krw.estpak.ee) joined #highaltitude.
[23:01] <sYx66> mmm food
[23:02] <sYx66> im making stake
[23:03] <jcoxon> hmmm who have i missed
[23:03] <RocketBoy> nights
[23:03] RocketBoy (n=Steve@ left irc: "Leaving"
[23:04] <shellevil> laurencb?
[23:05] <jcoxon> oooo yeah
[23:05] <jcoxon> i've only got his old address
[23:05] <jcoxon> he isn't at oxford now
[23:07] borism (n=boris@195-50-201-147-dsl.krw.estpak.ee) left irc: Read error: 145 (Connection timed out)
[23:12] <jcoxon> anyone got laurence's email
[23:16] <natrium42> yeah
[23:16] <natrium42> one sec
[23:17] <natrium42> PM'd
[23:19] <jcoxon> done
[23:31] jiffe92 (n=weechat@ joined #highaltitude.
[23:32] kc0wys (n=kc0wys@75-130-209-194.dhcp.stls.mo.charter.com) joined #highaltitude.
[23:54] <jcoxon> night all
[23:54] jcoxon (n=jcoxon@host86-146-165-98.range86-146.btcentralplus.com) left irc: "Leaving"
[23:57] hallam (i=836ff82e@gateway/web/ajax/mibbit.com/x-0624b591d6004f79) joined #highaltitude.
[00:00] --- Wed Feb 25 2009