highaltitude.log.20110801

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[00:14] <griffonbot> @LVL1WhiteStar: had great time at #MakerFaire Detroit! Here's a vid of the Speedball-2 indoor demo: http://t.co/lrfZEWR #UKHAS #arhab [http://twitter.com/LVL1WhiteStar/status/97822508690046976]
[00:16] <griffonbot> @Greendrv: RT @LVL1WhiteStar: had great time at #MakerFaire Detroit! Here's a vid of the Speedball-2 indoor demo: http://t.co/lrfZEWR #UKHAS #arhab [http://twitter.com/Greendrv/status/97822954183864321]
[00:16] <griffonbot> @LVL1HackerSpace: RT @LVL1WhiteStar: had great time at #MakerFaire Detroit! Here's a vid of the Speedball-2 indoor demo: http://t.co/lrfZEWR #UKHAS #arhab [http://twitter.com/LVL1HackerSpace/status/97823018734202880]
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[00:24] <griffonbot> @assgoblin13: RT @LVL1WhiteStar: had great time at #MakerFaire Detroit! Here's a vid of the Speedball-2 indoor demo: http://t.co/lrfZEWR #UKHAS #arhab [http://twitter.com/assgoblin13/status/97824891155398656]
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[01:35] <nickolai> evening all
[01:37] <kristianpaul> hello
[01:42] <nickolai> how's it going?
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[03:21] <hibby> back ;)
[03:28] <nickolai> hey hibby
[03:28] <hibby> how goes
[03:34] <nickolai> well, working on the pcb for my flight computer
[03:35] <hibby> cool
[03:35] <nickolai> however, due to a lack of foresight on my gps pcb i need for find a way to sort of jam the gps pcb into the flight computer pcb
[03:35] <hibby> just back from makerfaire
[03:39] <nickolai> o, how was it?
[03:42] <hibby> awesome
[03:43] <nickolai> nice, show any balloon stuff?
[03:44] <hibby> yeah, the whitestar guys won 3 editors choice awards
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[07:11] <Upu> morning all
[07:13] <number10> morning upu
[07:15] <number10> Upu do you have a lank to any sample audio rtty files so that I can debug fldigi problem I have on main pc
[07:15] <number10> link
[07:15] <Elwell> hibby: still stateside?
[07:23] <Upu> yes
[07:23] <Upu> 1 sec number10
[07:28] <Upu> http://ukhas.org.uk/general:most_recent_launches
[07:28] <Upu> Xaben and Cloud have telemetry recordings
[07:29] <Upu> I'd go for Xaben as the telemetry from Cloud was a little broken
[07:30] <number10> thats great - I'll try these tonight Upu
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[08:04] <edmoore> Randomskk: good morning
[08:07] <edmoore> pythonbrew looks excellent
[08:07] <edmoore> thanks fopr the tip
[08:11] <Randomskk> morning
[08:11] <Randomskk> np, it's super cool
[08:14] <Randomskk> NATS are now talking to the CAA to try and get this sorted it seems, check latest email :P
[08:14] <Randomskk> I like that he has the same optimistic interpretation of dm's time that we do
[08:14] <Randomskk> "probably too late for this year"
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[08:19] <Randomskk> off to work. bbl
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[11:37] <cuddykid> put a few adverts up for helium balloons around and about :)
[11:38] <cuddykid> not sure exactly what the going rate is though
[11:43] <cuddykid> how much would people charge for a 100 10" balloons inflated etc? - I'm thinking about £30 ?!
[11:47] <The-Compiler> now I search for "10 inch to cm" and the first thing google gives me is "My penis size is 10 cm (3.5 inch) is it small to pleasure my girl" - riiight.
[11:47] <The-Compiler> I have no idea though.
[11:47] <cuddykid> try googling "10inch IN cm"
[11:48] <cuddykid> 25.4cm
[11:56] <Darkside> http://pipe2.darklomax.org/topcat/topcat_soldered.jpg
[11:56] <Darkside> WOO
[11:57] <The-Compiler> Darkside: short between pins 2 and 3 on the IC? :D
[11:57] <Darkside> actualy no
[11:57] <Darkside> i see that too
[11:57] <Darkside> but theres actually no short there
[11:58] <The-Compiler> first time you're soldering smd? :P
[11:58] <Darkside> first time woldering a TQFP-100
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[11:58] <Darkside> soldering*
[11:58] <Darkside> anyway, that pin isn't used
[11:58] <Darkside> and the other pin is ground
[11:58] <Darkside> so in worst case, i'm shorting a GPIO that i never activate to ground
[11:59] <Randomskk> that's actually usually a good idea, but just make very sure you don't turn the pullup on
[11:59] <Randomskk> or you'll have a continual leakage
[11:59] <Darkside> yup
[11:59] <Randomskk> looks pretty good though!
[11:59] <Randomskk> tqfp100 is not much fun to hand solder
[11:59] <The-Compiler> the Cs look horrible though :p
[12:00] <Randomskk> haha can't all be perfect :P
[12:00] <The-Compiler> not really a problem with a decent soldering iron imho, I do several of these a day sometimes (working in an apprenticeship as an electronical engineer)
[12:01] <Darkside> The-Compiler: yeah, i did a crap job on the 0603s
[12:01] <Darkside> i'll probably go over them again later
[12:01] <Darkside> still, i managed to burn the arduino bootloader to the board, so something must be right
[12:02] <Darkside> took a fucking long time to go it, but i guess its 256k flash
[12:03] <The-Compiler> actually, desoldering them by hand is a lot more funny :p
[12:03] <Darkside> oh god
[12:03] <Darkside> i'd pull up most of the pads on that
[12:03] <Darkside> since most of the pads aren't connected to anything
[12:03] <Darkside> i realise now i shoudl have grounded EVERYTHING that i'm not using
[12:03] <The-Compiler> yeah happens sometimes to me as well
[12:04] <The-Compiler> just short everything, take 2 soldering irons, warm all the sides up and hope it gets loose
[12:04] <The-Compiler> actually at work it's even more of a pita as the components are slightly "glued" down with a special glue before getting soldered in the machine
[12:05] <The-Compiler> so you kinda have to stab them until the glue comes off as well and hope all the solder WAS already off when you stab them
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[12:07] <Randomskk> hot air is definitely the way forward here
[12:08] <Elwell> any good tutorials on smd soldering? sparkfun?
[12:09] <The-Compiler> hmm, now that's a nice idea! Just used hotair for shrinking tube so far :D
[12:09] <Elwell> and whats a reasonable cheap test 'thing' to solder?
[12:10] <Randomskk> resistors
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[12:10] <Randomskk> SOIC logic chips
[12:11] <The-Compiler> or get some piece of electronics you don't need anymore and try to desolder and re-solder stuff
[12:13] <GW8RAK> An apparently successful way of soldering such chips is to flux the pads well and apply solder to all the pins as a flood, i.e. you create bridges across most of the pins. Then using solder wick, go over the pins and remove all the excess solder. Meant to work quite well.
[12:13] <Randomskk> while it does work, I find if you can solder the pins individually, it's a lot less thermal stress and tends to make much neater results
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[12:14] <GW8RAK> Unfortunately my eyesight isn't up to doing them individually :(
[12:14] <Randomskk> personally I reflow wherever I can
[12:14] <Randomskk> tons easier
[12:15] <Randomskk> well, one exception, if I'm at the CUSF lab we have a stereo microscope and really good soldering iron, so doing it by hand is actually quicker and easier
[12:15] <Randomskk> stereo microscopes are things of beauty
[12:15] <Randomskk> even 0402 is easy, I reckon I could do 0201s without much hassle
[12:15] <SpeedEvil> Webcams are almost-sort-of a substitute
[12:16] <SpeedEvil> If you move slowly, and can bear the lack of stereo, a focussed down webcam has really great resolution
[12:16] <Randomskk> they don't have anything on stereo microscopes though, really :P
[12:17] <Randomskk> full field of view but in 3d
[12:17] <Randomskk> it's fantastic
[12:17] <SpeedEvil> Indeed.
[12:17] <The-Compiler> there is some special soldering iron tip (not sure how to explain in English), it holds a little bit of tin in it, then you can just flux everything, then just "skim" through all the pads and they're all done :)
[12:17] <SpeedEvil> Hoof bit
[12:17] <Randomskk> or 'reservoir tip' sometimes
[12:17] <SpeedEvil> As it looks like a horses hoof.
[12:17] <SpeedEvil> sort-of
[12:18] <The-Compiler> ah :)
[12:18] <The-Compiler> btw, do you guys also have the Switzerland google-doodle or is that local to here? :D
[12:19] <Randomskk> local it would seem
[12:19] <Randomskk> google.ch has it though
[12:19] <The-Compiler> hehe okay, that's what I expected
[12:19] <The-Compiler> national holiday today
[12:19] <Randomskk> off work? :P
[12:19] <Randomskk> lucky
[12:20] <The-Compiler> I have holidays anyway
[12:20] <The-Compiler> bleh :P
[12:20] <Randomskk> hah
[12:20] <Randomskk> I'm "on holiday" from uni, which means I'm working full time at a real job
[12:20] <Randomskk> :|
[12:20] <The-Compiler> http://en.wikipedia.org/wiki/Swiss_National_Day
[12:21] <The-Compiler> looking forward to photographing the fireworks this evening :)
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[12:38] <NigelMoby> Afternoon
[12:39] <WillDuckworth> anyone got any launches planned this week(end)?
[12:41] <NigelMoby> Meee
[12:45] <WillDuckworth> good stuff, keep checking those predictions.... is that the pichochu thing you've been working on?
[12:47] <NigelMoby> Yup, sure is, hopefully the weather will b nice.
[12:49] <WillDuckworth> what day? i'm debating whether to launch this week too.
[12:50] <NigelMoby> Aiming for Saturday
[12:50] <NigelMoby> But Sundays an option to so....
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[12:53] <WillDuckworth> cool, might look at friday, big changes in the predictions - may be a bit early.
[12:53] <WillDuckworth> any pics NigelMoby?
[12:53] <NigelMoby> Sure, let me find them.
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[12:58] <fsphil> oooh more launches
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[12:58] <NigelMoby> Hm can't get to them on the mobile, ill link you when I'm at the desktop
[12:59] <NigelMoby> Ello Phil
[12:59] <fsphil> g'day mr moby
[12:59] <fsphil> (sorry Darkside :-p)
[12:59] <NigelMoby> Hehe, how's you?
[13:00] <fsphil> back at work, just had some chocolate cake (someone's birthday). you?
[13:00] <NigelMoby> Mmm cake! I'm good ra
[13:00] <NigelMoby> Ta*
[13:01] <number10> can anyone tell me what the four fields after altitude are cat,1099,13:30:35,52.067116,-0.088845,14346,35.37,158.8,17.3,-28.1*753D
[13:01] <number10> I presume last field is crc
[13:02] <NigelMoby> Temp
[13:03] <fsphil> the * signals the crc yea
[13:03] <number10> 35.37,158.8,17.3,-28.1 so whats the 158.8
[13:03] <fsphil> last two are probably internal and external temperature
[13:03] <number10> that looks like it makes sense fsphil - still dont know about the other two
[13:04] <NigelMoby> Hm dunno wat the other 2 are
[13:04] <LazyLeopard> We'll have a good guess, but those fields vary so much from payload to payload that only the payload's owner is likely to have the correct answer. ;)
[13:04] <number10> ok thanks, i'll ask Upu when he is in
[13:04] <fsphil> number10, speed and bearing
[13:04] <fsphil> (looked up the xml file)
[13:05] <NigelMoby> Ahhh gd detective work Phil :p
[13:05] <number10> where is the xml file fsphil?
[13:05] <LazyLeopard> Cool!
[13:05] <fsphil> I used the dl-fldigi cache version
[13:05] <fsphil> can't remember the url
[13:05] <number10> ok
[13:05] <LazyLeopard> ...but dl-fldigi will know. ;)
[13:06] <fsphil> http://www.robertharrison.org/listen/allpayloads.php
[13:06] <fsphil> there you go :)
[13:07] <number10> ta
[13:07] <NigelMoby> Wow, whitestar got 2 editors choice awards at makerfaire
[13:10] <Zuph> This was a triumph.
[13:10] <Zuph> I'm making a note here: huge success.
[13:10] <NigelMoby> Hey brad, huge congrats to all of you.
[13:19] <Zuph> Makerfaire was a blast.
[13:25] <Upu> afternoon
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[13:29] <fsphil> good work
[13:36] <cuddykid> hmm, having probe configuring the easy radio transmitter I have
[13:36] <cuddykid> *probs - damn you autocorrect
[13:37] <fsphil> not living up to its name then?
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[13:44] <cuddykid> fsphil: certainly not!
[13:44] <cuddykid> configured the transceiver easily - but not the transmitter!
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[13:45] <fsphil> it works like a modem doesn't it? AT commands?
[13:45] <cuddykid> trying to reduce the baud rate from standard 19200 to 2400
[13:45] <cuddykid> yeah
[13:46] <NigeyS> WillDuckworth, here you go, http://twitpic.com/4p1pe0
[13:46] <cuddykid> despite the radio acknowledging the command I send it fails to change the rate
[13:46] <NigeyS> do you have to do anything silly like power it down then repower for that change to kick in properly ?
[13:47] <fsphil> how do you know it fails to change the rate?
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[13:50] <cuddykid> 2 reasons: 1) it doesn't communicate on the new rate (like the transceiver does); 2) when I send the command to find what rate it's at it tells me it hasn't changed!
[13:51] <cuddykid> NigeyS: nope, all you have to do is send command followed by ASK - the other configured fine
[13:51] <fsphil> what baud rate are you connected to the module itself?
[13:51] <fsphil> you might be reading that instead of the radio rate
[13:51] <NigeyS> cuddykid, ahh oki
[13:51] <cuddykid> it's the standard - but I'm changing it (using arduino) with no luck
[13:52] <cuddykid> managed to dig out rs232 to USB connector, they have an app for windows to configure, so going to try that
[13:52] <NigeyS> Zuph
[13:53] <cuddykid> forgot the rs232 pin outs - google time
[13:53] <NigeyS> hehe
[13:53] <NigeyS> not a prolific chipset is it?
[13:53] <NigeyS> theyre evil
[13:53] <fsphil> only on windows
[13:54] <Zuph> NigeyS?
[13:54] <fsphil> never had a problem with the prolific interface on linux
[13:54] <NigeyS> fsphil, true, linux was a joy with mine, windows .. nup, forget it
[13:54] <NigeyS> Zuph, whats the plans for speedball-1 now, will it fly, or will you hop into speedball 2 ?
[13:55] <cuddykid> ergh, hate hate hate having to boot up vmware, slows the comp down to a ridiculous level!
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[13:55] <NigeyS> cuddykid, vmware should run ok if you have dual / quad core ?
[13:56] <Zuph> NigeyS: Finish up comm controller code, fly Speedball-1
[13:56] <NigeyS> Zuph, yey!
[13:56] <cuddykid> NigeyS: got dual core macbookpro but still runs so slow
[13:56] <Zuph> I'm sort of idly working on a Cortex-M3 based flight computer that should take into considerations all the shortcoming of our current stack.
[13:56] <NigeyS> hmm shouldnt do
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[13:57] <Zuph> That's at least a Speedball-3 development, though.
[13:57] <NigeyS> cortex.. mm .. tasty!!!
[13:57] <NigeyS> btw when do the jetstreams open back up for you guys, octoberish ?
[13:58] <fsphil> now that I think about it, it must have been the jet stream that hadie:2 caught - I haven't seen a prediction going that far all summer
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[13:59] <NigeyS> the flight tht went to the dales ?
[13:59] <cuddykid> I think I've designated too much ram to the vmware windows as that runs all right
[13:59] <NigeyS> cuddykid, set to 512 ?
[13:59] <NigeyS> afternoon RocketBoy
[13:59] <cuddykid> NigeyS: set to 1.5Gb
[13:59] <cuddykid> out of 4Gb
[14:00] <RocketBoy> afternoon
[14:00] <NigeyS> ahh chuck it down to 512, itll run just fine with that unless ure doing some crazy stuff
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[14:00] <Zuph> NigeyS: Aye, around that time.
[14:00] <cuddykid> thanks for getting back RocketBoy btw, will send money over either tonight or tomorrow morning! :)
[14:00] <NigeyS> Zuph, cant wait :D !
[14:00] <RocketBoy> np - sorry for the delay
[14:01] <Zuph> From the stirrings on our Makerfaire Huddle, it sounds like hibby is recovering from his Saturday evening.
[14:01] <NigeyS> lol
[14:01] <hibby> teehee
[14:01] <hibby> i got incredibly drunk on bourbon.
[14:02] <hibby> there is a blank patch in my memory from roughly 2am to 1pm.
[14:02] <NigeyS> lol tut tut hibster
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[14:05] <hibby> it was free, though
[14:05] <NigeyS> then ure excused :p
[14:05] <hibby> lol
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[14:10] <cuddykid> how do I work the COM ports etc on windows?! Don't have a clue where to start
[14:10] <hibby> hmm. im keen to build a blimp with some funky auto flight computer fun. wonder what the laws arelike at home...
[14:10] <hibby> cuddykid: get putty
[14:10] <hibby> use serial option
[14:10] <hibby> select port and baud rate
[14:10] <hibby> ???
[14:11] <hibby> profit
[14:11] <cuddykid> cool thanks :)
[14:11] <SpeedEvil> hibby: In every country in the world, it's legal to use UAVs at home.
[14:11] <SpeedEvil> hibby: It's when you let them out of doors problems arise.
[14:11] <hibby> hmm
[14:11] <NigeyS> hmm interesting
[14:11] <NigeyS> http://www.bis.gov.uk/ukspaceagency/news-and-events/2011/Aug/satellite-innovators-launch-smartphone-space-app-competition
[14:11] <edmoore> cuddykid: is this just for basic 2-way human-machine interaction?
[14:12] <edmoore> or do you want automation?
[14:12] <SpeedEvil> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=300582209618&ssPageName=ADME:B:FSEL:GB:1123
[14:12] <SpeedEvil> oops
[14:12] <cuddykid> edmoore: just 2 way - got a USB to rs232 9 pin and simply want to connect that up to one of the radio modules I have
[14:12] <hibby> i was hoping to go across a body of water... have some radio control based backup option, but run it autonomously for the most part
[14:13] <NigeyS> isnt it legal if you stay under xxxft ?
[14:13] <cuddykid> yeah, believe it is legal if remains in eye contact and under certain dist
[14:14] <NigeyS> hm eye contact .. thats a grey area, could use a telescope ;)
[14:14] <SpeedEvil> I wonder what the legality is of trained birds.
[14:14] <hibby> maybe. i dont know. neutral buoyancy and motors to control height with a gps max altitude
[14:14] <NigeyS> SpeedEvil, homing pidgeons? :p
[14:14] <SpeedEvil> Pigeon + leeetle headset.
[14:14] <NigeyS> haha thats a uav right there!
[14:14] <hibby> can just follow it in the kayak
[14:15] <SpeedEvil> Or pigeon, with helmholtz coils wrapped around its head.
[14:15] <NigeyS> lol
[14:15] <SpeedEvil> Train it to always fly north
[14:15] <NigeyS> what happens when our magnetic field flips ? :|
[14:16] <hibby> shit goes down.
[14:16] <NigeyS> they all gonna start going backwards
[14:16] <edmoore> cuddykid: ok cool. well, PySerial is a good module if you get to that stage
[14:16] <fsphil> cats and dogs, living together?
[14:16] <NigeyS> hah!
[14:16] <NigeyS> afternoon eroomde :)
[14:16] <WillDuckworth> :)
[14:17] <NigeyS> WillDuckworth, did you get that link ?
[14:19] <WillDuckworth> cheers NigeyS, think i've seen that - what's the weight?
[14:19] <NigeyS> 86gms
[14:20] <NigeyS> 88 with insulation and a bit of gaffa tape
[14:20] <WillDuckworth> excellent - few hours up in the air the target?
[14:21] <NigeyS> well, predictions are about a 1hr 30 flight if it bursts at 5km
[14:21] <NigeyS> might burst much earlier, or much later, no idea
[14:22] <NigeyS> or i get super lucky and it floats until the lipo dies hehe
[14:25] <WillDuckworth> fingers crossed - i wonder if there's a way to reinforce those foil balloons?
[14:26] <NigeyS> if anything you want to underinflate them to prevent burst rather than reinforce them
[14:26] <fsphil> dan had an idea of a nylon reinforced latex balloon
[14:26] <fsphil> think it's a great idea
[14:27] <NigeyS> how would that work exactly? :|
[14:28] <hibby> nylon mesh substrate
[14:28] <hibby> like tights
[14:28] <fsphil> like a giant pillow
[14:28] <NigeyS> oh right
[14:28] <fsphil> balloon gets larger as it ascends, and eventually fills up the pillow
[14:28] <fsphil> the nylon stops the balloon getting bigger
[14:29] <NigeyS> pressure will still build though
[14:29] <fsphil> only until it floats
[14:29] <NigeyS> hm, interesting
[14:29] <hibby> and the nylon will deform under pressure
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[14:42] <WillDuckworth> think we'll have the cricket wrapped up today..
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[14:57] <hibby> the sport?
[15:04] <fsphil> cricket is a sport?
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[15:13] <NigeyS> apparently fsphil :p
[15:13] <Upu> I don't get it
[15:13] <Upu> some people hit a ball with a bat, it rains and the other people win
[15:14] <NigeyS> lol
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[15:17] <jcoxon> afternoon
[15:19] <fsphil> ello ello
[15:19] <NigeyS> afternoon james
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[16:03] <hibby> tell you what, im hooked on baseball
[16:03] <hibby> even though the professionals are crap
[16:04] <NigeyS> round ball..round bat .. doesnt compute
[16:05] <hibby> they keep missingthe ball.
[16:05] <hibby> and guys in the outfield just look bored
[16:09] <NigeyS> lol
[16:09] <NigeyS> i'll stick with rugby
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[16:12] <mattltm> Ta DA!!
[16:12] number10 (5198fb23@gateway/web/freenode/ip.81.152.251.35) joined #highaltitude.
[16:12] <mattltm> It is I, mattltm :)
[16:12] <NigeyS> hey Matt
[16:12] <fsphil> I'm not so sure
[16:12] <NigeyS> imposter?
[16:13] <mattltm> Who me? Never :p
[16:13] <NigeyS> :p
[16:14] <mattltm> Mwhhhh!
[16:14] <fsphil> evil laugh ... must be the real mattltm
[16:15] <mattltm> lol.
[16:15] <fsphil> woo, home time
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[16:36] <m1x10_happiest> hi all
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[16:37] <NigeyS> wb m1x10
[16:39] <m1x10> hi all
[16:55] <fsphil> aaah ohm sweet ohm
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[17:23] <cuddykid> lol fsphil
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[17:34] <hibby> fsphil: lol
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[17:40] <cuddykid> got a massive hatred for easyradio
[17:41] <SamSilver> I know the feeling cuddykid
[17:41] <hibby> whats easyradio?
[17:41] <SamSilver> not sooo easy as it turns out
[17:41] <NigeyS> lols
[17:42] <NigeyS> never trust anything with EASY in the name to be EASY :p
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[17:42] <SamSilver> cuddykid: how about a linky for hibby
[17:42] <SamSilver> or life like
[17:42] <hibby> ill google it.
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[17:49] <fsphil> easyjet?
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[17:50] <nickolai89> has anyone run into an issue with the cusf predictor (online version) where it gets stuck on "Server says: Downloaded X% of GSF files" ?
[17:51] <fsphil> there seems to be an issue with the predictor grabbing the wind data from NOAA
[17:51] <fsphil> I believe it is a problem with the noaa server that handles that
[17:52] <SamSilver> my HP printer is not looking so hot anymore > http://www.gizmag.com/3d-printed-aircraft-flown/19383/?utm_source=Gizmag+Subscribers&utm_campaign=92bb47a7c1-UA-2235360-4&utm_medium=email
[17:53] <hibby> hahah
[17:54] <SamSilver> Laurenceb_: would love one of them
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[17:54] <SamSilver> I would kill for one
[17:57] <nickolai89> so i should probably just wait a while and try it again?
[17:57] Action: fsphil backs away
[17:57] <fsphil> nickolai89, been like that for a few days. I hope it gets fixed soon too
[17:58] <nickolai89> oh no, i was thinking about launching on saturday...
[17:59] <cuddykid> hibby: http://www.lprs.co.uk/easyradio.html
[17:59] <hibby> aha
[17:59] <cuddykid> SamSilver: have you used them before? If so, did you manage to configure the TS module ?!
[18:00] <SamSilver> cuddykid: nope I have not,
[18:01] <SamSilver> I first heard of them from you and then read up about them
[18:01] <cuddykid> ahh right!
[18:01] <SamSilver> following your progress with interest
[18:01] <cuddykid> lol
[18:01] <cuddykid> well, transceiver configured ok, but the transmitter is refusing to
[18:02] <cuddykid> phoned them earlier only to find that their tech guy was away
[18:06] <SamSilver> which one do you have cuddykid
[18:06] <SamSilver> or set ?
[18:06] <cuddykid> The ERA400TRS configured fine, but the ERA400TS won't
[18:07] <SamSilver> baud rate problem still?
[18:07] <cuddykid> yep
[18:07] <cuddykid> it echoes back that rate has been changed but clearly it has not been changed!
[18:09] <SamSilver> select your
[18:09] <SamSilver> new BAUD using the new ER_CMD#U0 command
[18:09] <cuddykid> yeah used ER_CMD#U1
[18:09] <SamSilver> page 5 > http://www.lprs.co.uk/assets/files/ERx00-02%20Series%20Data%20Sheet%20(Rev%202.5).pdf
[18:10] <cuddykid> also (for the TRS module I had to) follow it by ACK
[18:10] <SamSilver> Easy-Radio 02 (2nd Generation Modules)
[18:10] <cuddykid> don't have the 02s mine are here - http://www.lprs.co.uk/assets/files/erA3v3.pdf
[18:12] <SamSilver> I was barking up the wrong tree
[18:13] <SamSilver> page 13 > http://www.lprs.co.uk/assets/files/erA3v3.pdf
[18:13] <cuddykid> yep, using that
[18:14] <cuddykid> but won't remember the setting for some reason
[18:14] <cuddykid> worked fine on the transceiver which is same command
[18:15] <SamSilver> I am stumped at the mo
[18:17] <SamSilver> got to dash, I wish you luck, will have a look see tomorrow
[18:18] <SamSilver> afk
[18:28] <cuddykid> thanks SamSilver!
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[18:55] <Zuph> hibby: #lvl1 for future reference
[18:56] <hibby> i kept hearing mt heart will go on, and when o nice
[18:56] <hibby> wait
[18:56] <hibby> jesus
[18:56] <hibby> wc
[18:56] <hibby> nice.
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[19:29] <Lunar_Lander> hello
[19:31] <Lunar_Lander> hi GW8RAK
[19:37] <Darkside> ok, so i've implemented an EEPROM ring buffer
[19:37] <Darkside> where each page is an element in the ring
[19:37] <Darkside> wheee
[19:38] <Lunar_Lander> cool Darkside
[19:38] <Lunar_Lander> and hello daveake
[19:38] <Lunar_Lander> and are you back home?
[19:40] <daveake> Yes, got back yesterday
[19:40] <Lunar_Lander> ah
[19:40] <Lunar_Lander> wait
[19:40] <Lunar_Lander> you got locked out too?
[19:41] <daveake> locked out?
[19:42] <Lunar_Lander> Darkside got locked out IIRC
[19:46] <fsphil> cool, seriously dark cloud overhead
[19:46] <Lunar_Lander> yay
[19:46] <Lunar_Lander> got a field mill?
[19:46] <fsphil> don't have a field or a mill
[19:49] <Lunar_Lander> oh ok
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[19:55] <NigeyS> meh
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[19:57] <NigeyS> oo lvl1 on engadget .... http://www.engadget.com/2011/08/01/maker-faire-pony-has-wiimote-controlled-indigestion-belches-fir/
[19:58] <hibby> indeed
[19:58] <hibby> butterscotch went viral
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[19:59] <NigeyS> sweet
[20:01] <Darkside> OK thats enough coding for tonight...
[20:01] <Darkside> implemented the entire UKube-1 I2C command spec
[20:01] <Darkside> actually, it was 2 specs at once, since my code can switch between the old and new specs.
[20:02] <hibby> Darkside: nice one
[20:02] <NigeyS> been a busy bee then Darkside :p
[20:02] <Darkside> ooh, they are doing bellringing practice in the abbey
[20:02] <Darkside> NigeyS: lots of coding
[20:02] <NigeyS> ouch
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[20:02] <Darkside> now i'm going to finish implementing a very very bare-bones implementation of the TOPCAT code
[20:03] <Darkside> i've effectively implemented the entire thing myself...
[20:03] <NigeyS> :D
[20:03] <NigeyS> thats alot of work
[20:03] <Darkside> its not *that* bad
[20:03] <NigeyS> when does it fly ?
[20:03] <Darkside> take a look at it yourself: http://code.google.com/p/invert-topcat/
[20:03] <Darkside> NigeyS: next year
[20:04] <hibby> NigeyS: quite some time, lol
[20:04] <hibby> we reckon it'll be 2013 at this rate, lol.
[20:04] Action: hibby notices a pattern, and inserts another lol.
[20:04] <NigeyS> lol
[20:05] <Darkside> >_>
[20:05] <Darkside> hibby: you're involved?
[20:05] <hibby> Darkside: clyde space / Strathclyde Uni
[20:05] <NigeyS> and that code just goes right over my iccle brain hehe
[20:05] <Darkside> whaaaaaat
[20:05] <Darkside> you're in clyde space
[20:05] <hibby> Been working on the structure with them.
[20:05] <hibby> no, i'm in the uni.
[20:05] <Darkside> tell them to hurry the fuck up and release the new platform emulator
[20:05] <NigeyS> lols
[20:05] <Darkside> ahh ok
[20:06] <Darkside> the platform emulator we have implements the I2C protocol spec revision E (i think), and the latest spec (from June 2nd) is revision F
[20:06] <hibby> Darkside: that's how she looks at the moment http://www.flickr.com/photos/djhibby/5808420740/in/photostream
[20:06] <hibby> well, the engineering model, anyway
[20:06] <Darkside> so i've been busy implementing that spec, and i got halfway through and found it didn't work with the bloody platform emulator!
[20:07] <hibby> jesus
[20:07] <Darkside> lol TOPCAT GANT
[20:07] <hibby> that seems to be the story of ukube at the moment.
[20:07] <Darkside> thats meeee!
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[20:07] <hibby> important enough to be labelled
[20:07] <NigeyS> UKube 1
[20:07] <NigeyS> I spent my day playing with a satellite. What did you do?
[20:07] <NigeyS> haha i love that :D
[20:07] <Darkside> hibby: hold on, i'll uplod the latest pic of TOPCAT
[20:07] <Upu> Launched a cat and a budgie into space ?
[20:07] <hibby> Upu: it's a work in process.
[20:08] <hibby> the cat doesn't have good radio skills.
[20:08] <Upu> You're doing what I'd love to do :)
[20:08] <Darkside> hibby: any idea what micro the MIC us using?
[20:08] <hibby> not off the top of my head.
[20:09] <hibby> I've only been involved seriously in modelling the RF performance of it.
[20:09] <Darkside> still interesting to me
[20:09] <hibby> which is, currently, a mess.,
[20:09] <Darkside> i want to set up a S_band ground station in adelaide
[20:09] <hibby> as clydespace don't have anyone involved in RF.
[20:09] <hibby> apart from me, and some of it is just stabbing in the dark.
[20:10] <Darkside> oh god
[20:10] <NigeyS> so what's the launch vehicle for this then? .. im intrigued
[20:10] <Darkside> what about RL?
[20:10] <Darkside> RAL*
[20:10] <Darkside> or whatever they are called
[20:10] <hibby> hah, im sure they do, but we have the structures
[20:10] <Darkside> ffuuuuu
[20:10] <Darkside> how the hell is the S-band stuff gonna work...
[20:10] <hibby> and they want to compare the actual rf patterns to the theoretical ones
[20:11] <Darkside> is the attitude control goign to be good enough?
[20:11] <hibby> Darkside: at this rate... it may night
[20:11] <hibby> **noot
[20:11] <hibby> **not
[20:11] <Darkside> ffs
[20:11] <hibby> fucking dying keyboard
[20:11] <Darkside> and what will we get on U.V?
[20:11] <Darkside> U.V*
[20:11] <hibby> we've bought ISIS and Funcube UV transcievers
[20:11] <hibby> but the academics have decided in all their wisdom that they're using some weird-ass packet format.
[20:11] <Darkside> so funcubes transmitters are entirely separate?
[20:11] <hibby> yeah.
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[20:11] <Darkside> will they be sending any of the payload data ?
[20:12] <Darkside> http://pipe2.darklomax.org/topcat/TOPCAT_Prototype_1.JPG
[20:12] <hibby> there's talk of a custom software layer for the funcube dongle
[20:12] <Darkside> http://pipe2.darklomax.org/topcat/TOPCAT_Prototype_2.JPG
[20:12] <Darkside> http://pipe2.darklomax.org/topcat/TOPCAT_Prototype_3.JPG
[20:12] <hibby> they were quoting a lowering of lost packets by using this format they're insisting on
[20:12] <Darkside> is this funcube or the academics
[20:12] <hibby> but they chose to ignore my suggestion that radio hams are really excited about being involved in these projects
[20:12] <Darkside> i'd be more inclined to listen to the funcube guys
[20:13] <Darkside> since, AMSAT and all...
[20:13] <Darkside> tbh, i just want data. even if its only a few packets per orbit...
[20:13] <hibby> and that by making it accessible to the community, the couple of lost packets they'd experience on about 4 ground segments compared x hundred hams world wide
[20:14] <Darkside> fuuu
[20:14] <Darkside> well i'm on a conference call with them tomorrow
[20:14] <hibby> but they're being experimental.
[20:14] <Darkside> what should i say :P
[20:14] <hibby> fuck knows
[20:14] <Darkside> i *really* hope funcube is going to send some payload data down...
[20:14] <SpeedEvil> How many hams participated in the stuff with what was it called
[20:14] <hibby> worth reminding them that just getting it up and hearing a few beeps back will be a win at this stage...
[20:14] <Darkside> because i think i'd rely more on funcube than clydes stuff
[20:14] <SpeedEvil> the NASA one
[20:14] <SpeedEvil> the sail
[20:15] <hibby> SpeedEvil: there was a ton of excitement about it
[20:15] <hibby> Darkside: the comms stuff is all academic
[20:15] <hibby> not clyde space
[20:15] <Darkside> hibby: >_>
[20:15] <hibby> they were only using me and my access to cupboards for testing antenna performance
[20:15] <fsphil> look how much excitement there is about arissat-1
[20:15] <hibby> aye
[20:15] <Darkside> all i'm doing is sending 256 byte packets of data tot he platform
[20:15] <Darkside> from there i'm just hoping we'll get some of that data on the ground
[20:16] <hibby> if you could get the RSGB motivated and involved, the UK ham community would be well excited.
[20:16] <hibby> ocht, there'll be downlinked data
[20:16] <hibby> but the packet format will be weird
[20:16] <Darkside> as long as theres software to extract useful data from it, i don't care
[20:16] <hibby> I had to go to great lengths to remind them that encryption was straight up not allowed
[20:16] <Darkside> oh you're kidding me
[20:16] <Darkside> they were considering using encryption?
[20:16] <hibby> i think they still are.
[20:17] <Darkside> ffs
[20:17] <hibby> they keep rewording it and I keep saying it's illegal
[20:17] <SpeedEvil> Authentication sure.
[20:17] <Darkside> for the uplink, yes
[20:17] <Darkside> though even for the uplink its illegal?
[20:17] <hibby> mmhmm
[20:17] <SpeedEvil> Encryption is not authentication.
[20:17] <hibby> if we're on an amateur frequency, encryption's not allowed.
[20:17] <Darkside> yer
[20:18] <hibby> authentication, like an rsa hardware token, would be fine
[20:18] <hibby> even then, i said they should be prepared that someone might try to work it out
[20:18] <SpeedEvil> Or like a hash of the data sent with the secret.
[20:18] <hibby> because that's what nerds do :)
[20:18] <Darkside> yep
[20:19] <Darkside> you'd need a RX station close to the uplink site
[20:19] <Darkside> but its all doable :P
[20:19] <hibby> that was tuned to the exact frequency at the exact time/etc/et
[20:19] <Darkside> yep
[20:19] <SpeedEvil> Or a wideband recorder.
[20:20] <Darkside> i noticed the uplink frequency wasn't release
[20:20] <Darkside> released*
[20:20] <SpeedEvil> HDs are getting faster and faster.
[20:20] <hibby> I've got it on a document I lost somewhere.
[20:20] <SpeedEvil> logging a 50MHz slice of spectrum for an hour no longer looks that scary.
[20:20] <Darkside> heh
[20:20] <Darkside> i have the IARU document, but parts of it are redacted
[20:20] <hibby> haha
[20:21] <Darkside> also WTF is MyPocketQUB doing with that slice of 70cm
[20:21] <Darkside> they have 100KHz from 437.425MHz
[20:21] <hibby> no one uses 70cm anyway
[20:22] <Darkside> heh
[20:22] <Darkside> also what modulation is the ISIS transmitter using?
[20:22] <Darkside> and what data rate
[20:22] <hibby> gmsk at last check
[20:22] <hibby> 9600baud, iirc.
[20:22] <Darkside> FM modulated..
[20:22] <hibby> it's either 9600 or 1200
[20:23] <Darkside> fuuuu
[20:23] <Darkside> im gonna need a tracking antenna then
[20:23] <hibby> that's all we got space for.
[20:23] <Darkside> that makes life more painful
[20:23] <Darkside> what about the S_band then?
[20:23] <hibby> nah, get a 5/8ths and a preamp and you'll be fine
[20:23] <Darkside> where's that gonna fit?
[20:23] <hibby> sband is looking to be 1mbit
[20:23] <hibby> BUT
[20:23] <hibby> technically it's fucking difficult
[20:23] <Darkside> where the hell is teh antenna gonna go?
[20:23] <hibby> and practically, the dish/antenna array that's needed is expensive
[20:23] <hibby> patch antenna
[20:23] <Darkside> hh
[20:24] <hibby> 1u on one side.
[20:24] <hibby> it's the ground array that's the sizable bit there
[20:24] <Darkside> we wer planning on using a dish we have lying around at uni for it
[20:24] <hibby> we can't afford to put one on the roof at strathclyde
[20:24] <Darkside> i think its a 30something dBi dish
[20:24] <hibby> it'll have to be at least that
[20:24] <Darkside> we have the dish, we can make the feedpoint
[20:24] <hibby> I was told my 24dBi helical array wouldn't do.
[20:24] <Darkside> oh damn
[20:25] <Darkside> what RX equipment would we need?
[20:25] <Darkside> i.e. what receiver
[20:25] <hibby> we were looking at using the ic910-h that's in the station
[20:25] <hibby> with a transverter on the mast
[20:25] <hibby> just convert the 2.4 -> 144
[20:25] <Darkside> hold on, what modulation scheme is the S-band going to use?
[20:25] <hibby> Dunno, i think they were gunning for gmsk again
[20:25] <Darkside> but...
[20:25] <Darkside> 1Mbps?
[20:25] <hibby> it's not got a chance of being mbit.
[20:25] <Darkside> is that even possible?
[20:26] <hibby> it requires some chaining on amateur frequencies
[20:26] <Darkside> ffs
[20:26] <hibby> would require, on the radio end, taking hte signal out at IF stage and doing tons of custom processing
[20:26] <Darkside> are you fine with me telling my supervisor this?
[20:26] <Darkside> i.e. that we're not going to get 1Mbps
[20:26] <Darkside> unless you pull off a miracle
[20:26] <hibby> not yet ~ it's old data
[20:26] <Darkside> ok
[20:26] <hibby> I've not been involved in the project for about 6 weeks since I came to the states
[20:27] <Darkside> well, we're willing to set up a ground station in australia for S-band, if they give us the receiver hardware
[20:27] <Darkside> we'll supply the antenna and tracking stuff
[20:27] <hibby> lol
[20:28] <Darkside> :P
[20:28] <Darkside> i'm already planning on setting up a cross-dipole antenna in adelaide for the VHF stuff
[20:28] <fsphil> I've space here if they fancy supplying receiver, antenna, tracking stuff and someone to put it up :)
[20:28] <Elwell> hibby: aye -- ditto for the shack at work :0(
[20:28] <Elwell> err s#0(#)#
[20:28] <hibby> hmm
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[20:29] <hibby> I've got loads of emails about FEC and stuff
[20:29] <Elwell> dear switzerland. yes I've seen enough fireworks tonight. please stop now.
[20:30] <hibby> there's 9.6k gmsk somewhere in the system
[20:30] <hibby> s-band looks to have 4096k frames
[20:30] <Darkside> reeeealy
[20:30] <Darkside> and 1Mbit GMSK?
[20:30] <Darkside> >_>
[20:30] <hibby> no, 4096 byte frames
[20:30] <hibby> in the way the v/u is 256b frames
[20:31] <hibby> 9.6k gmsk already requires rx modification
[20:31] <hibby> but that's vhf
[20:31] <Darkside> i'll be using teh funcube dongle
[20:31] <fsphil> 9600 should be easy with that
[20:32] <SpeedEvil> Today over in ##electronics I saw something potentially fun.
[20:32] <SpeedEvil> A USB microcontroller with USB3, and a flexible GPIO unit.
[20:32] <SpeedEvil> That can act like an 8/16/32 bit FIFO.
[20:32] <SpeedEvil> At very, very high speed
[20:33] <SpeedEvil> http://www.cypress.com/?mpn=CYUSB3014-BZXIES#Inventory
[20:33] <hibby> some of the emails are hilarious
[20:33] <hibby> "Follow up on exploding neodymium magnets. (comment - the
[20:33] <hibby> issue might be loss of protective coating in vacuum)"
[20:33] <Darkside> bah, cypress
[20:33] <SpeedEvil> I need to read up on it more thouroughly
[20:33] <Darkside> hibby: hahahaha
[20:33] <Darkside> oh god
[20:33] <SpeedEvil> Ummm. Exploding magnets?
[20:33] <Darkside> and we were worried about our crystals blowing up
[20:34] <fsphil> exploding crystals??
[20:34] <fsphil> what are you people sending into space?
[20:34] <Darkside> if there was an air pocket, the crystal might rupture
[20:34] <fsphil> ahh
[20:34] <SpeedEvil> Crystals are hermetically seale generally, for anti-aging reasons
[20:34] <hibby> fsphil: if i told you that, I'd have to kill you
[20:34] <Darkside> yeah
[20:34] <fsphil> muhaha
[20:35] <Darkside> SpeedEvil: w're gonna put one in teh vacuum chamber to see what happens
[20:35] <fsphil> if it's in a vacuum though it should still be as good as sealed? even if it leaked a bit?
[20:35] <hibby> must just be impurities in the rock.
[20:35] <Elwell> hibby: need it measured?
[20:36] <Elwell> http://cdsweb.cern.ch/journal/CERNBulletin/2011/31/News%20Articles/1364613?ln=en
[20:36] <hibby> dunno, not my job
[20:36] <hibby> gnarly
[20:36] <Elwell> 0.3 micron thingy :-)
[20:37] <hibby> small
[20:37] <Elwell> thats a nice bit of granite too
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[20:45] <Lunar_Lander> hi mattltm NigeyS
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[20:53] <Lunar_Lander> hello SamSilver
[21:08] <Lunar_Lander> ping eroomde
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[21:22] <eroomde> Lunar_Lander: pong
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[21:23] <Lunar_Lander> could you please give me the link again to the site where you used the Venus GPS?
[21:23] <Lunar_Lander> or the chip of it
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[21:25] <russss> this is interesting: http://www.livestream.com/aiaa
[21:25] <russss> lots of space talk
[21:25] <russss> Elon Musk was talking earlier
[21:25] <russss> currently there's a guy from XCOR
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[21:36] <eroomde> russss: big loud american type
[21:36] <eroomde> 'tache and booming voice?
[21:36] <russss> yeah although he didn't seem that loud
[21:36] <russss> he did have a moustache
[21:37] <eroomde> i think i know the guy
[21:37] <eroomde> coo or something
[21:37] <eroomde> maybe cfo
[21:37] <eroomde> met him at space conf in london. he was super keen on the ballooning students
[21:39] <russss> Jeff Greason, President and CEO, XCOR Aerospace
[21:39] <russss> the schedule is on that page actually
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[21:45] <russss> you can almost tell the size of the organisation by the number of bullet points on their powerpoint slides.
[21:46] <Lunar_Lander> eroomde: could you help me please with the link
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[21:59] <eroomde> Lunar_Lander: sorry, remind me again
[21:59] <eroomde> the vendor?
[22:01] <Lunar_Lander> you once showed me a site with the flight computer that used the Venus
[22:01] <Lunar_Lander> that one I need
[22:02] <SpeedEvil> russss: Inversely proportional?
[22:06] <Darkside> eew venus
[22:06] <Lunar_Lander> ?
[22:06] <eroomde> Lunar_Lander: our own one?
[22:06] <Darkside> i know the telemetrum uses them
[22:06] <Darkside> http://www.altusmetrum.org/TeleMetrum/
[22:06] <eroomde> we used the venus once
[22:06] <Lunar_Lander> that I mean
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[22:55] <NigeyS> http://habhub.org/predict/#!/uuid=4d82550a487899132a1e0c292bed1a58e8ba13b5
[22:55] <NigeyS> haha as far as early predictions go, that has got to be the worst ive seen in a long while
[22:56] <SpeedEvil> ?
[22:57] <NigeyS> im trying to avoid cities, not overfly every city between here and hereford! lol
[22:58] <Lunar_Lander> that is not good
[22:58] <NigeyS> hopefully the wind direction between now and then will change... alot ..
[23:01] <Lunar_Lander> zeah
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[00:00] --- Tue Aug 2 2011