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[18:38] <phatmonkey> hey jcoxon
[18:38] <phatmonkey> hey rocketboy
[18:39] <phatmonkey> rocketboy, progress on the radio?
[18:39] <phatmonkey> i might be sending up an uncontrolled payload soon (maybe tandem with pegasus IV)
[18:39] <phatmonkey> would there be a chance for data radio?
[18:40] <rocketboy> yes the radio system is finished - I just need to try it - I'm hoping that someone will lauch soon - so i can hitch a ride
[18:41] <rocketboy> I have 2 stystems - a 1200 buaud packet radio system - should do at least 40Km and a 300 baud system that should do a lot more
[18:41] <rocketboy> both are low speed data
[18:42] <rocketboy> the 1200 baud system takes about 50mA at 6V and the 300 baud about 25mA at 3V
[18:45] <phatmonkey> nice stuff!
[18:45] <phatmonkey> not sure when james will be ready, but i suppose we might be able to get something up before the launch thingy at cambridge runs out on the 15th
[18:46] <rocketboy> hope so
[18:48] <phatmonkey> two phones, two beacons and a packet radio
[18:48] <phatmonkey> somehow i don't think we're going to lose it
[18:50] <rocketboy> the changes must be smaller tha a nats ...
[18:50] <rocketboy> chances
[18:50] <rocketboy> than
[18:50] <phatmonkey> we can try out your prediction algorithm too
[18:51] <phatmonkey> and have a live prediction of where it would land if it were cutdown
[18:51] <rocketboy> could do if we log the data from the downlink
[18:52] <rocketboy> if we can detect burst then I sould be able to predict the landing spot given the ascet data
[18:52] <phatmonkey> or it might be easier just to do the processing on board and transmit the prediction now and then
[18:52] <phatmonkey> yeah
[18:52] <rocketboy> have to guess the parahute drag
[19:07] <rocketboy> BBL
[19:22] <jcoxon> hey all
[19:22] <jcoxon> can't stay for long
[19:22] <jcoxon> just to say i reckon i could be ready in a week apart from a balloon
[19:22] <jcoxon> if i was pushed
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[19:23] <jcoxon> i've got everything ready
[19:23] <jcoxon> just waiting for some solder wick :-D
[19:24] <jcoxon> bbl
[19:28] <phatmonkey> ok
[19:28] <malgar> jcoxon,
[19:29] <malgar> i'll show to you the coolest high altitude balloon ever made
[19:29] <malgar> are you there?
[19:30] <phatmonkey> what do people suggest for step up regulators... around 3.7v to 5v, at least 1 or 2 amps
[19:34] <malgar> http://www.mentallandscape.com/V_VegaBalloon4.jpg << it seems nothing special, right?
[19:34] <malgar> has flown on venus!!! http://www.mentallandscape.com/V_VegaDescent.jpg
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[19:35] <a1fa> any new projects?
[19:53] <a1fa> that boomerang thing looks bad ass
[19:53] <a1fa> too bad you need his payload
[21:03] <jcoxon> hey all
[21:03] <jcoxon> i'm back
[21:04] <malgar> jcoxon, read above
[21:04] <jcoxon> yeah i saw it
[21:05] <jcoxon> very cool
[21:05] <jcoxon> i met some people who are planning a mars balloon
[21:05] <malgar> !
[21:05] <jcoxon> well they were involved at one point
[21:05] <jcoxon> can't remember the details
[21:05] <malgar> but it is a scout mission proposal after msl
[21:05] <jcoxon> it was out in africa
[21:06] <jcoxon> though did met some cool french scientists who had instruments that went to Titan
[21:06] <jcoxon> and they were testing a field detector to go to mars
[21:07] <a1fa> wow
[21:07] <a1fa> you guys do this for living?
[21:07] <a1fa> gpsboomerang looks amazing
[21:07] <jcoxon> they test on earth so that they can compare the data
[21:07] <jcoxon> alfa, a few people can get away with doing it for a living
[21:07] <jcoxon> gpsboomerang is nice
[21:07] <jcoxon> a guy in canada pioneered the system
[21:08] <jcoxon> http://www.members.shaw.ca/sonde/
[21:08] <a1fa> it has servos that steer it to the right landing spot?
[21:08] <jcoxon> yup
[21:08] <jcoxon> phatmonkey is working on a similar thing
[21:08] <phatmonkey> ah, hi james
[21:08] <jcoxon> heya
[21:09] <a1fa> wow :P
[21:09] <phatmonkey> right. what shall i put my stuff in
[21:09] <a1fa> mail box
[21:09] <phatmonkey> tupperware box with polystyrene inside... or just polystyrene
[21:09] <a1fa> and mail it to me
[21:09] <phatmonkey> a1fa, i'll think about that one
[21:09] <jcoxon> i'm going for a wooden frame
[21:09] <jcoxon> with polystyrene insulation
[21:09] <a1fa> i want to build a predator drone
[21:10] <a1fa> that uses hayabusa engine
[21:10] <a1fa> or snowmobile engine
[21:10] <a1fa> snowmobile engines can last longer under high rpms
[21:11] <a1fa> and use commercial satelite internet for navigation
[21:11] <jcoxon> a1fa, where are you based?
[21:11] <phatmonkey> hmm, i might just use a tupperware box
[21:11] <phatmonkey> nice and tough
[21:12] <jcoxon> yeah that'll do fine
[21:12] <phatmonkey> i'll get some rechargable li-ion cells too
[21:12] <phatmonkey> so i can reuse them on the glider
[21:13] <phatmonkey> are we going to have any temperature sensors?
[21:13] <a1fa> usa
[21:13] <jcoxon> i'm looking into that right now
[21:13] <jcoxon> a1fa, cool
[21:13] <phatmonkey> dave can't write this serial port thing either
[21:13] <jcoxon> oh
[21:13] <a1fa> yeah.. they are a bit strict here when it comes to UAVs
[21:13] <jcoxon> thats a shame
[21:14] <jcoxon> same here
[21:14] <a1fa> i dont blame them
[21:14] <phatmonkey> i have never coded anything for microprocessors or any kernel drivers, so, um
[21:14] <phatmonkey> maybe i should beg on the mailing list
[21:14] <phatmonkey> hehe
[21:14] <jcoxon> hmmm, not sure that'll help
[21:14] <phatmonkey> or just live without a phone and extra gps
[21:14] <jcoxon> haha
[21:15] <jcoxon> well i've got a phone
[21:15] <phatmonkey> sorry, a second phone and a third gps
[21:15] <phatmonkey> hehe
[21:15] <phatmonkey> yeah
[21:16] <a1fa> imagine launching 20ft airplane, and piloting it from your xbox :P
[21:16] <a1fa> scarry shit
[21:17] <jcoxon> a1fa, hehe
[21:17] <a1fa> or your dual lcd desktop and using a nice joystick to control the plane
[21:17] <jcoxon> phatmonkey, i think you need to cut down on the accessories
[21:19] <phatmonkey> yeah...
[21:19] <phatmonkey> but what if my gps doesn't work above 60,000ft like it said
[21:19] <phatmonkey> ah, i know
[21:19] <phatmonkey> i'll just use the gps i know that works
[21:19] <phatmonkey> the huge one
[21:19] <phatmonkey> ok, good
[21:19] <a1fa> that sonde url.. the dude went all balistic, and developed nasa material aircraft
[21:20] <a1fa> he aint an amateur
[21:20] <phatmonkey> he did an amazing project... i've been chatting to him about it
[21:20] <phatmonkey> he said he regretted not using thermopiles, so that's a good sign i suppose
[21:21] <phatmonkey> jcoxon, shall i leave out the phone then?
[21:21] <phatmonkey> just a gps and radio
[21:21] <jcoxon> i want one of these: http://www.xsens.com/index.php?mainmenu=products&submenu=machine_motion&subsubmenu=MTi
[21:21] <phatmonkey> if you have a camera, i can't be arsed to sort out one
[21:21] <phatmonkey> well, i might if i find something suitable
[21:22] <jcoxon> well i've got a camera, phone and beacon
[21:22] <jcoxon> i have a spare rigged camera
[21:22] <jcoxon> 3MP
[21:22] <jcoxon> well actually its peg III's camera
[21:22] <phatmonkey> ok
[21:22] <phatmonkey> those all in one AHRSes are insanely expensive
[21:23] <phatmonkey> MTx DK ¬ 1,990.00
[21:23] <phatmonkey> there you go...
[21:23] <phatmonkey> i much prefer my £30 thermopiles
[21:23] <phatmonkey> hehe
[21:23] <phatmonkey> which have no chance of drifting
[21:23] <jcoxon> phatmonkey, oh i've sent a begging email
[21:24] <jcoxon> no harm in trying :-p
[21:24] <phatmonkey> haha
[21:24] <jcoxon> hmmm i might order from spark fun
[21:25] <jcoxon> can't seem to find an equivalent
[21:25] <a1fa> why doesnt anybody build a predator like aircraft?
[21:25] <phatmonkey> do you have any suggestions for step up (3.7v ish to 5v) regulators that will handle over 1 amp
[21:25] <a1fa> besides the laws... whats stopping you? :=
[21:25] <jcoxon> a1fa, people sort of do
[21:25] <jcoxon> at least UAVs such as the paparrazi project
[21:26] <jcoxon> phatmonkey, definitly not my field
[21:26] <phatmonkey> i have some free samples for some 1amp regulators, but they're tiny little surface mounted things that i really don't trust
[21:26] <phatmonkey> ok
[21:26] <phatmonkey> and 1 amp ain't much for two servos that can draw half an amp each...
[21:30] <a1fa> jcoxon : url?
[21:30] <phatmonkey> google paparazzi uav
[21:30] <a1fa> i did
[21:30] <a1fa> nvm
[21:30] <a1fa> typo
[21:30] <jcoxon> http://www.nongnu.org/paparazzi/
[21:32] <phatmonkey> the information on that page is *very* old
[21:32] <phatmonkey> they have a wiki somewhere
[21:32] <phatmonkey> http://www.recherche.enac.fr/paparazzi/doc/moin.cgi/PaparazziUserManual
[21:32] <phatmonkey> think that's it
[21:33] <jcoxon> phatmonkey, do you have any idea how to link up some adcs to i2c
[21:33] <jcoxon> so i can add some sensors?
[21:33] <phatmonkey> robostix?
[21:33] <phatmonkey> hehe
[21:33] <phatmonkey> i can carry the sensors if you want
[21:34] <jcoxon> i really need them onboard pegasus
[21:35] <jcoxon> thinks its gonna be a matter of some circuit building
[21:37] <jcoxon> i've got some ICs for the job
[21:40] <phatmonkey> ok
[21:42] <jcoxon> methinks a trip to maplin is required
[22:10] <jcoxon> thats nice :-p
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[22:26] <jcoxon> so phatmonkey will our dual launch be UKHAS 1?
[22:31] <malgar> who is the guy of gps boomerang project? is there here?
[22:32] <jcoxon> nah, gps boomerang is run by synco
[22:32] <jcoxon> he hasn't been around since last year
[22:32] <phatmonkey> jcoxon, or just Pegasus IV and something I!
[22:32] <phatmonkey> i'm off, might bbiab
[22:34] <jcoxon> cya
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[22:58] <phatmonkey> back for a bit, hi jcoxon
[22:58] <phatmonkey> hi kc0wys
[22:58] <phatmonkey> how's the next balloon?
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[23:32] <kc0wys> hi
[23:33] <kc0wys> the next balloon is, well, slow
[23:33] <kc0wys> school is a major hindrance
[00:00] --- Thu Aug 31 2006