highaltitude.log.20100719

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[00:23] <Laurenceb> hi
[00:24] <SpeedEvil> hi
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[00:26] Action: Laurenceb maybe came up with a cheap and simpleish n-prize design
[00:26] <Laurenceb> 6 PET tubes with 100MPa hydrogen gas in
[00:26] <Laurenceb> arranged in a hexagon, then a projectile fired up the middle with blades on the sides to rupture the tubes, then hang it all off a balloon
[00:29] <SpeedEvil> umm...
[00:29] <SpeedEvil> What does this do?
[00:29] <Laurenceb> the tubes burst and the hydrogen explodes out hitting the contoured end of the projectile
[00:29] <SpeedEvil> other than make a puff of hydrogen
[00:29] <SpeedEvil> so it's a cheapo gas-gun?
[00:30] <Laurenceb> so you can reach very high speeds maybe - >>mach 1 in the hydrogen
[00:30] <Laurenceb> yes
[00:30] <Laurenceb> tho the projectile has to be fired in fairly fast as the whole construction destroys itself very fast after the tube is cut
[00:32] <Laurenceb> potentially it can get a lot faster than the speed of sound - unlike a conventional gas gun, and also you can make it long and light with manageble projectile acceleration
[00:32] <Laurenceb> maybe....
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[01:36] <griffonbot> @nearsys: GPSL is next week. Attend to hear the lastest in near space technology. #ARHAB #GPSL [http://twitter.com/nearsys/status/18875417399]
[01:37] <griffonbot> @nearsys: I'll present on cosmic rays at GPSL. #ARHAB #GPSL [http://twitter.com/nearsys/status/18875441127]
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[03:59] <griffonbot> @projecttraveler: Testing is going good for PT2010b flight next weekend. Almost identical payload to 2010a w/ a few fixes and 2nd camera. #ARHAB #GPSL [http://twitter.com/projecttraveler/status/18884301414]
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[08:45] <m1x10> morning all
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[11:52] <m1x10> hi all
[12:27] <griffonbot> @apex_ii: Lots more images of launch and recovery on the gallery http://balloon.hexoc.com/gallery/apex-ii #apexhab #ukhas [http://twitter.com/apex_ii/status/18908861013]
[12:30] <m1x10> griffonbot, was the launch predictor accurate?
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[13:12] <Laurenceb> stupid twitter is invading the channel :(
[13:31] <fsphil> off-topic twitterness?
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[14:18] <Wild-Wing> hello everyone
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[15:14] <fsphil> cool, I'm receiving something from the AO-51 satellite
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[15:17] <Wild-Wing> hello everyone
[15:17] <Wild-Wing> how is everyone
[15:17] <fsphil> working :)
[15:17] <fsphil> how's you?
[15:18] <Wild-Wing> hehe im good
[15:18] <m1x10> hey :)
[15:19] <Wild-Wing> hey how are you m1x10
[15:19] <m1x10> cool and u?
[15:19] <Wild-Wing> im good
[15:20] <m1x10> Who r u? first time i see you here
[15:20] <Wild-Wing> i recently got intrested in habs
[15:21] <g8tmv> Wild-Wing: you in the UK?
[15:21] <Wild-Wing> no im not i live in the usa
[15:22] <fsphil> well, verticals are not good antennas for satellites it seems - only got the signal when it was near the horizon
[15:22] <g8tmv> fsphil: a quarter wave would probably be ok, but most verticals are designed bigger than that so they have a low pattern on purpose
[15:23] <Wild-Wing> verticals? what is a vertical?
[15:23] <fsphil> yea, this is a fairly high gain so I'd imagine the pattern is quite flat
[15:23] <g8tmv> fsphil: yes they get the gain by squashing the do-nut pattern downwards
[15:23] <g8tmv> Wild-Wing: a vertically polarised antenna
[15:23] <fsphil> still great to hear it .. heard ON5NY from belgium making a contact with someone who sounded canadian
[15:23] <fsphil> all on 70cm :)
[15:24] <g8tmv> fsphil: during vhf field day the other weekend we worked quite a lot of europe on 70cms - but we did have a rx pre-amp and a bigish linear
[15:25] <g8tmv> and stacked antennas
[15:25] <Wild-Wing> hmmm i guess ill have to look that up
[15:25] <fsphil> excellent .. I've yet to make any contacts on 70cm
[15:25] <fsphil> ssb?
[15:25] <g8tmv> yes
[15:25] <g8tmv> it was the camb-hams contest station G3PYE/p
[15:26] <m1x10> Wild-Wing, usa? state?
[15:26] <m1x10> Send my greetings to California teens !!
[15:26] <fsphil> what frequency g8tmv? I'll have to have a listen next time
[15:26] <Wild-Wing> Massachusetts
[15:26] <m1x10> Wild-Wing, ooo MIT !!
[15:26] <g8tmv> fsphil: ssb is centered around 432.2
[15:27] <g8tmv> fsphil: where are you based? near Cambridge?
[15:27] <Wild-Wing> hehe yea i didnt go there
[15:27] <m1x10> have a good start with HA
[15:27] <fsphil> g8tmv, a bit further - middle of n.ireland
[15:27] <m1x10> HAB*
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[15:28] <g8tmv> fsphil: ah, ok, every Tuesday evening there is an RSGB accumulator vhf contest, a different band every week
[15:28] <g8tmv> we are usually active for a couple of hours - which is all it goes on for
[15:28] <g8tmv> this week is 23cms I think
[15:29] <fsphil> ah, beyond my little radio. you get propagation at that frequency?
[15:30] <g8tmv> sometimes! next 70cms is on Tuesday 10th aug - so give it a try then
[15:30] <g8tmv> also 70cms QRP (low power) on Sun 8th Aug
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[15:30] <g8tmv> for contest info see http://www.rsgbcc.org/
[15:31] <Wild-Wing_> grrrrr damn power flicker kicked my internet off
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[15:31] Nick change: Wild-Wing_ -> Wild-Wing
[15:31] <Wild-Wing> msg NickServ identify gundam
[15:33] <jonsowman_work> Wild-Wing: er I think you wanted a / in front of that
[15:33] <Wild-Wing> whoops
[15:35] <fsphil> g8tmv, what do you consider qrp?
[15:35] <fsphil> I have 5 watts and a 9el yagi
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[15:36] <g8tmv> it varies by band but I think on 70cms they mean less than 10 watts
[15:36] Action: g8tmv goes to check
[15:36] <fsphil> yea, just spotted it on that link
[15:37] <g8tmv> ah, 25 watts
[15:37] <fsphil> well if I get through I'll be doing well :)
[15:37] <g8tmv> you should be able to work quite a few people with that setup
[15:38] <g8tmv> remember it's horizontal polarisation for ssb
[15:38] <fsphil> aah, I'd forgot that
[15:39] <g8tmv> you get better range that way
[15:39] <fsphil> explains why I've yet to hear any ssb with the vertical on the roof
[15:40] Action: g8tmv nods
[15:40] <g8tmv> point your beam SE and you should hear plenty
[15:40] <g8tmv> you can test if it's working by listening for some of the beacons
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[15:58] <fsphil> I take it the beacons are all horizontal aswell?
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[15:59] <g8tmv> actually, I'm not sure since they are supposed to be omnidirectional
[15:59] <jonsowman_work> fsphil: how's hadie going?
[15:59] <fsphil> hmm.. it may be my position too -- I can hear a local one on 2m but that's about it
[16:00] <fsphil> jonsowman_work, bit slower than expected. got the box made - need to work on the antenna. still no word from the caa
[16:00] <jonsowman_work> ah right - where are you launching then?
[16:00] <g8tmv> http://www.ktbx.demon.co.uk/page151.html seems to be a beacon list - but you need sunglasses to read it
[16:01] <fsphil> it's a visitor centre car park about 10 miles from my house, nice handy location with very little in the way of buildings or tall trees.
[16:01] <jonsowman_work> ah right :) sounds good
[16:02] <fsphil> g8tmv, aaarg!
[16:03] <fsphil> jonsowman_work, helium, permission and weather are the biggest concerns right now :)
[16:03] <jonsowman_work> okay
[16:03] <jonsowman_work> how long ago did you contact CAA?
[16:04] <fsphil> middle of last month
[16:05] <fsphil> though I've been told they're taking a bit longer than the usual 28 days
[16:05] <g8tmv> fsphil: I did warn you
[16:05] <g8tmv> and it looks like most beacons use vertical omni antennas
[16:06] <fsphil> g8tmv, view source -- it's easier to read the html than the actual page :)
[16:06] <fsphil> I can hear occasional ascending and descending tones near the frequency for GB3ANG
[16:06] <Wild-Wing> oh damn when the html code is easier to read than the page that sucks
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[16:09] <g8tmv> Ah! http://www.qsl.net/ei7gl/vhfbcn.htm is much more readable
[16:09] <fsphil> aaaaah
[16:10] <g8tmv> and you ought to be able to hear EI2WRB
[16:12] <g8tmv> or maybe not - you are almost exactly on it's edge
[16:12] <fsphil> whatever that tone I hear is, it's stepping up and down in 570hz steps
[16:13] <g8tmv> yes, some beacons trinsmit a sequence incl a solid tone, a mores ident and various other tones even rtty sometimes
[16:18] <fsphil> nah, not a peep
[16:26] <fsphil> jonsowman_work, you doing any launchs soon?
[16:27] <jonsowman_work> relaunching apex II in a couple of months
[16:27] <jonsowman_work> after a few bug fixes and improvements :)
[16:28] <jonsowman_work> payload suffered absolutely no damage so is ready to fly again
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[16:31] <fsphil> excellent .. so the parachute worked really well?
[16:31] <jonsowman_work> mostly
[16:31] <jonsowman_work> the remains of the balloon wrapped around the shroud lines at around 8km on descent
[16:32] <jonsowman_work> so it fell at 10m/s roughly from there to the ground
[16:32] <jonsowman_work> luckily it landed in a field of uncut corn - softest landing possible really
[16:32] <fsphil> handy
[16:33] <jonsowman_work> very
[16:33] <jonsowman_work> antenna was a bit bent out of shape but it was soon re-formed
[16:33] <jonsowman_work> quite a few things need improving/fixing before the next launch
[16:33] <jonsowman_work> but saturday's went *almost* perfectly
[16:34] <fsphil> there was an uplink wasn't there?
[16:35] <jonsowman_work> there was
[16:35] <jonsowman_work> controlled cutdown which we did not use
[16:35] <jonsowman_work> but we pinged the balloon on descent
[16:35] <fsphil> where you able to test it at all?
[16:35] <jonsowman_work> worked :)
[16:35] <fsphil> ah very cool
[16:38] <jonsowman_work> fsphil: http://github.com/mattbrejza/APEX/blob/master/Launch1/final.txt
[16:39] <jonsowman_work> that's the telemetry log from the payload
[16:39] <jonsowman_work> see packet number 311
[16:39] <jonsowman_work> it has PING at the end :)
[16:39] <jonsowman_work> at about 2km altitude
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[16:45] <fsphil> that's neat - the uplink was 50 baud too?
[16:45] <Matt_soton> 37.5 baud :)
[16:50] <fsphil> well that makes sense ;-)
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[16:57] <Matt_soton> its just a PIC outputting a standard baud (1200) but underclocked by 32x
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[17:05] <earthshine> afternoon
[17:06] <fsphil> howdy earthshine
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[17:08] <earthshine> hey
[17:08] <earthshine> how's things?
[17:09] <earthshine> Sorry haven't been active in the channel for a while
[17:09] <earthshine> writing this book is sapping all my time and energy
[17:09] <Randomskk> book eh?
[17:09] <earthshine> yep
[17:09] <Randomskk> what're you writing?
[17:10] <earthshine> http://amzn.to/cws5qR
[17:10] <Randomskk> :o
[17:10] <Randomskk> cool
[17:11] <earthshine> bloody hard work trust me
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[17:25] <m1x10> I have a problem with my HAB design idea
[17:25] <m1x10> who wants to hear?
[17:27] <SpeedEvil> go
[17:29] <m1x10> :)
[17:29] <m1x10> HAB will contain an isolated APRS HAM based package.
[17:30] <m1x10> It will also include a sensor package
[17:30] <m1x10> doing the usual measures
[17:31] <m1x10> my problem is that I want to know at what altitude the sensor data were retrieved
[17:31] <SpeedEvil> GPS?
[17:31] <m1x10> sensor package will not contai GPS
[17:31] <SpeedEvil> why not?
[17:31] <m1x10> GPS only for APRS system and GSM backup system
[17:31] <Randomskk> you could put a clock on
[17:31] <Randomskk> but just put gps in the sensors or wire the two together
[17:31] <Randomskk> it's a self imposed issue
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[17:37] <fsphil> sounds like fun
[17:37] <Randomskk> curious
[17:38] <Randomskk> * hab
[17:38] <Randomskk> who knows
[17:39] <fsphil> so where are the results?
[17:39] <Randomskk> my thoughts
[17:39] <Randomskk> ?help
[17:39] <fsphil> d'ph
[17:39] <Randomskk> bizarre
[17:39] <fsphil> d'oh
[17:49] <SpeedEvil> Or memoserv
[17:49] <SpeedEvil> poor forgotten memoserv
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[18:24] <jonsowman> silly zeusbot
[18:24] <jonsowman> can't even spell definition
[18:26] <Randomskk> hi jonsowman
[18:26] <Randomskk> how'd the apex debriefing go?
[18:26] <jonsowman> yeh good :)
[18:27] <jonsowman> generally the launch all went very well I think
[18:27] <Randomskk> yup
[18:27] <Randomskk> the guys at work enjoyed the photos etc
[18:27] <jonsowman> :)
[18:27] <jonsowman> we are almost certainly launching it again in the near future
[18:27] <jonsowman> with both cameras working this time
[18:27] <Randomskk> cool col
[18:28] <jonsowman> plus a few other bug fixed and improvements, including 3 consecutive packets on 300 baud
[18:28] <Matt_soton> launch video is (almost) up
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[18:28] <Randomskk> nice
[18:28] <Matt_soton> well it just got to 100% then said invalid upload...
[18:28] <Randomskk> any thoughts on more insulation or a heater for the radio or just going to go for slower ascent to help with the drift?
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[18:28] <m1x10> back from the heavy storm
[18:28] <jonsowman> and better insulation and lower ascent rate to get around the drift
[18:28] <Randomskk> lol
[18:28] <jonsowman> heh
[18:28] <m1x10> :):)
[18:29] <jonsowman> yeh both things should help a lot
[18:29] <jonsowman> http://balloon.hexoc.com/gallery/apex-ii/index.php/Data/graphs1
[18:29] <Randomskk> good stuff
[18:29] <jonsowman> internal temp dropped almost as fast as external
[18:29] <Randomskk> raw data plox
[18:29] <Randomskk> gnuplot
[18:29] <Randomskk> yea
[18:29] <Randomskk> all those holes in your insulation :P
[18:29] <jonsowman> yeh
[18:29] <Randomskk> any ideas on the GM tubes dropping out?
[18:29] <jonsowman> not as yet
[18:30] <jonsowman> #2 was just plain out dead
[18:30] <Randomskk> worked before
[18:30] <Randomskk> worked that morning
[18:30] <Randomskk> I think
[18:30] <jonsowman> i don't remember - perhaps
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[18:30] <Randomskk> my graphs had both of them showing stuff
[18:30] <jonsowman> anyway it seems to be dead now
[18:30] <jonsowman> #1 - not a clue
[18:30] <Randomskk> http://robertharrison.org/listen/view.php
[18:31] <Randomskk> M0RND : APEX,78,06:55:35,5212.8968,00005.8249,39,000,000,06,22.69,24.88,D1A,9A0,0007,000B,5705A3B42,24*1F18
[18:31] <jonsowman> oh yes
[18:31] <jonsowman> indeed
[18:31] <Randomskk> maybe a wire broke loose during final rigging or launch
[18:31] <jonsowman> that's all I can think of
[18:31] <Randomskk> M0RND : APEX,165,08:06:29,5212.8262,00006.0335,19,000,000,07,15.38,15.38,D22,98C,0006,0002,5CE373932,2E*9ADE
[18:31] <Randomskk> last one
[18:31] <jonsowman> mm
[18:31] <Matt_soton> the bottom contact got bent and could have dislodged the internal 'pin' thing
[18:31] <jonsowman> in any case it will be replaced for next launch I hope
[18:32] <Randomskk> launch was at 0815
[18:32] <Randomskk> so 9 minutes after last good data from ird2
[18:33] <Matt_soton> so thats after the case was 'sealed'...
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[18:33] <Randomskk> but while it was being shaken about a bit
[18:34] <Randomskk> IRD's altitude/pressure/whatever behaviour is curious
[18:35] <Randomskk> comes close to corresponding to the pressure sensor's dropout
[18:36] <Matt_soton> it could have been pressure thing - the tube could have expanded meaning theres a larger gap to spark between
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[18:36] <Randomskk> maybe
[18:36] <Randomskk> I still like to imagine there's actually no radiation beyond that altitude
[18:36] <Randomskk> assuming your sensors are wrong is boring
[18:37] <jonsowman> heh
[18:37] <Matt_soton> u could see on the counts/altitude graph that counts were beginning to drop off nearing the dead period
[18:37] <Randomskk> so I guess further we can say that it is all parallel to earth's gravity vector
[18:37] <Randomskk> and there is no ionising radiation perpendicular to the earth's surface normal above a certain low altitude
[18:38] <Randomskk> the few 0 readings just before takeoff were statistical flukes
[18:38] <jonsowman> hahaa
[18:45] <m1x10> ping Randomskk
[18:45] <Randomskk> hi m1x10
[18:45] <m1x10> :)
[18:46] <Randomskk> hmm it is avr assembly time, fun stuff, I haven't actually tried to do this properly before
[18:46] <m1x10> remember my problem, few lines above?
[18:46] <Randomskk> I wonder how to link it
[18:46] <Randomskk> m1x10: yes
[18:46] <Randomskk> my suggestion was to either connect the sensors to the aprs, add gps to the sensors, or add a clock to the sensors and correlate later
[18:47] <m1x10> I imagined the clock idea but I eventually won't have accurate relation between altitude and sensor data
[18:47] <Randomskk> you would with the block
[18:47] <Randomskk> clock*
[18:47] <Randomskk> but just put gps in there
[18:47] <m1x10> man I already have 2 GPS
[18:47] <m1x10> not more !
[18:48] <Randomskk> then hook the existing ones up to your sensor
[18:48] <m1x10> yes... but
[18:48] <m1x10> I want my APRS system be isolated
[18:48] <m1x10> less complex
[18:48] <Randomskk> so add a third gps
[18:48] <m1x10> :(
[18:49] <Matt_soton> why are there 2 GPSs in the first place :\
[18:49] <m1x10> canb u think any way of tranferring the altitude from one APRS system to sensor system?
[18:49] <Randomskk> Matt_soton: backup gsm, main aprs
[18:49] <m1x10> you write faster pal
[18:49] <Randomskk> m1x10: well if you want you could put an APRS radio receiver in the sensor package
[18:50] <Randomskk> that'd keep them isolated
[18:50] <Randomskk> it would also be totally stupid
[18:50] <Matt_soton> oh ok
[18:50] <Randomskk> just get a third gps
[18:50] <m1x10> getting a 3rd gps like ublox maximizes the cost
[18:50] <Randomskk> so wire the aprs to the sensors
[18:50] <m1x10> the assembled ublogx board costs 60$+shipping
[18:51] <Randomskk> or get some cheaper gps
[18:51] <m1x10> that's what Im thinking
[18:51] <Matt_soton> persumably the GPS just outputs serial, so it can be connected to hte APRS repeater and sensor board at the same time?
[18:51] <m1x10> but how to wire them. think it will be 2 arduinos
[18:53] <fsphil> we just split the serial line in two for cirrus/hadie
[18:54] <m1x10> cirrus/hadie?
[18:54] <fsphil> two payloads on one balloon .. we shared the gps
[18:54] <m1x10> a
[18:54] <m1x10> spliting the uart line sounds interesting
[18:55] <fsphil> yea, I wasn't convinced it would work but it seemed to be fine
[18:55] <m1x10> can u tell me how to accomplish something like that
[18:55] <m1x10> or any website to read
[18:55] <fsphil> just add another wire to the gps's tx pin
[18:55] <Matt_soton> if the gps outputs straight serial just connect two wires to the output
[18:56] <m1x10> lol
[18:56] <m1x10> wait
[18:56] <Matt_soton> what GPS btw?
[18:56] <m1x10> everything is in female black holes
[18:56] <m1x10> put 2 wires there?
[18:56] <Randomskk> or just solder two wires to one wire
[18:56] <m1x10> hmmmmm
[18:56] <m1x10> tricky
[18:57] <m1x10> clever
[18:57] <m1x10> like
[18:57] <m1x10> :)
[18:58] <m1x10> well guys I think that's a real solution
[18:58] <fsphil> I really need to solder up my gps receiver, I've been putting it off
[18:59] <m1x10> Matt, backup GSM system uses EM-406A GPS
[18:59] <m1x10> APRS system will use the ublox assembled board
[19:00] <m1x10> ok, I think its time to make the sparkfun order
[19:00] <m1x10> :)
[19:00] <m1x10> no more questions. time to spend
[19:00] <m1x10> :)
[19:02] <m1x10> Im also planning to buy the radio shield from argentdata. Anyone used it before?
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[19:05] <Matt_soton> is that gps fine >60000ft, or dont u care being the backup system?
[19:06] <jonsowman> m1x10: that gps will cut out at 24km
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[19:17] <m1x10> yes, ppl I know about EM406 GPS. Thats why I'll use it as backup
[19:18] <m1x10> GSM works up to ~600meters so I dont need a high altitude GPS
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[19:20] <Matt_soton> do u have a way to reset the GPS, as what it does when it comes below the 'threshold' maybe unpredictable, based on what happened to one of our GPS modules?
[19:21] <jonsowman> Matt_soton: it'll be fine
[19:21] <jonsowman> it gets lock again alright
[19:21] <m1x10> Matt, the backup system is very simple
[19:21] <m1x10> I will just send it an sms
[19:21] <m1x10> i it will respond with gps data
[19:21] <Matt_soton> well it is a backup i suppose
[19:21] <Randomskk> I would have it send SMSs itself
[19:21] <Randomskk> simpler and more reliable
[19:22] <Randomskk> just spam SMS positions once below 1km or so
[19:22] <jonsowman> Randomskk: exactly what I was going to say
[19:22] <m1x10> That was the first plan
[19:22] <m1x10> Now I changed my mind
[19:22] <m1x10> Dont want to cosume power
[19:22] <Randomskk> why?
[19:22] <jonsowman> m1x10: why?
[19:22] <Randomskk> hmm
[19:22] <m1x10> consume*
[19:22] <Randomskk> on descent
[19:22] <Randomskk> at 1km
[19:23] <Randomskk> power is the last of your worries
[19:23] <Randomskk> finding it is much more important
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[19:23] <m1x10> yes but above 1km, it will keep spamming hence making TX bursts
[19:24] <Randomskk> no, you have it only transmit when below 1k
[19:24] <m1x10> ah ok
[19:24] <m1x10> my first plan was to transmit under 3km
[19:24] <Randomskk> also valid
[19:25] <m1x10> But I think I will code a function to respond with some position data based on triangulation
[19:26] <m1x10> I want to make that experiment, to see how possible is to get a position though GSM
[19:26] <m1x10> through*
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[22:50] <Wild-Wing> wow lot of people leaving
[22:51] <stilldavid> it's late!
[22:51] <LazyLeopard> late?
[22:51] <stilldavid> http://www.google.com/search?q=time+uk
[22:52] <LazyLeopard> Only 10pm proper time... ;P
[22:52] <stilldavid> well, I'm in bed by 11 usually :(
[22:52] <LazyLeopard> Good grey-line HF propogation time... ;)
[22:53] <LazyLeopard> ...this time of year, anyway.
[22:53] <stilldavid> I need to get into amateur radio
[22:54] <LazyLeopard> Got a receiver?
[22:54] <Wild-Wing> oh i keep forgetting this is mainly a uk chanel
[22:54] <stilldavid> yeah, a couple. I picked up an FT-817 mostly for HAB stuff and have talked on local repeaters and stuff
[22:55] <stilldavid> but I kind of want to get into DX stuff and do some mountain tops around here (in Colorado, lots of mountains here!)
[22:57] Action: LazyLeopard did a SOTA activation on what passes for a mountain top round here...
[22:57] <LazyLeopard> ...on Sunday.
[22:57] <LazyLeopard> It's worth all of one single solitary SOTA point. ;)
[22:58] <LazyLeopard> ...but it was a gentle walk to the "summit".
[23:01] <stilldavid> I haven't heard of SOTA before, looks interesting
[23:03] <Wild-Wing> has any one used two trasmitters before in a payload?
[23:03] <Randomskk> it's been done, usually for backup
[23:06] <fsphil> I'm tempted to do the SOTA thing on our local hill, but I'm still nervous about making any contacts :)
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[23:08] <Randomskk> I'm totally nervous about making any contats
[23:08] <Randomskk> I've spoken to like one person
[23:08] <Randomskk> ever
[23:08] <Randomskk> and that was on a repeater
[23:08] <Randomskk> and I have an M0, they just give them out to anyone
[23:08] <stilldavid> Randomskk, me too, I've only ever talked on repeaters
[23:08] Nick change: Noel -> Guest19228
[23:08] <fsphil> haha
[23:08] <fsphil> my one contact on 2m was simplex
[23:09] <stilldavid> for how friendly the community is, I'm glad I'm not the only one who's nervous to talk on the air
[23:10] <stilldavid> LazyLeopard, what do you recommend in the way of making an antenna for HF/VHF stuff?
[23:10] <stilldavid> I don't know where to start, really
[23:12] <fsphil> I've had good success on HF with just two wires out the window, one to either end of the garden
[23:12] <LazyLeopard> For HF, if you can make a simple dipole it'll be least trouble.
[23:12] <fsphil> I had to take them down because the Swifts kept flying into it, but they'll be leaving for africa soon so I can get it back up!
[23:13] <stilldavid> any type of wire in particular?
[23:13] <LazyLeopard> Depends a whole lot on what sort of space you have?
[23:13] <stilldavid> well, my house doens't have much at all, so I'm thinking of a park or other open space
[23:14] <LazyLeopard> ...in which case a dipole for your chosen band will likely be easiest to rig.
[23:14] <LazyLeopard> Club tonight was using a G5RV, but you need a good ATU for one of them.
[23:15] <fsphil> they don't tune to any amateur band?
[23:16] <fsphil> without the atu I mean
[23:16] <LazyLeopard> The full-sized one is tuned to 80 metres, and can be tuned with an ATU to other bands. Half-sized is tuned to 40 metres (unsurprisingly).
[23:17] <LazyLeopard> ...but with a good ATU you can use just about anything (up to a point).
[23:18] <fsphil> I have trouble tuning my ATU unless it's right at the base of the antenna
[23:18] <LazyLeopard> A friend once used the Menai Strait Bridge...
[23:23] Action: LazyLeopard has a tri-band vertical for 6m/2m/70cms for FM use.
[23:23] <fsphil> does much happen on 6m?
[23:24] <LazyLeopard> Sporadic E season, yes.
[23:24] <LazyLeopard> ...but I've not yet made any contacts on it.
[23:26] <fsphil> I've heard a few people from norway on there, but I can't tx on that band unfornatually
[23:27] <fsphil> but most of the time it's empty for me
[23:27] <LazyLeopard> Yeah.
[23:33] <fsphil> I've been listening to the amateur satellites today, definitely going to give that a go soon
[23:35] <LazyLeopard> Right. Includinf ISS?
[23:35] <fsphil> you know, the ISS was one of the first things I tried to receive when I got my radio. I've still to hear anything from them :)
[23:36] <LazyLeopard> I've heard packet signal, but not voice.
[23:36] <LazyLeopard> There've been reports of voice contact recently, though.
[23:37] <fsphil> yep, all the passes are when I'm at work atm
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[23:38] <fsphil> I'd love to do it but I don't know what I'd say to them if they replied :)
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[23:41] <LazyLeopard> Yeah. ;)
[23:44] Action: fsphil still didn't get the gps soldered
[00:00] --- Tue Jul 20 2010