highaltitude.log.20140722

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[02:00] <N9XTN> Anyone on familiar with how to get an APRS-only flight listed on spacenear.us?
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[04:39] <KT5TK> Hmm, Leo may not have been the first to cross the Pacific after all... Is the data from VK3YT-8 real on spacenear.us ?
[04:41] <KT5TK> Looks like it is somewhere close to Brazil's capital Brasilia.
[04:41] <arko> http://aprs.fi/?c=raw&call=VK3YT-8
[04:42] <arko> data is legit
[04:42] <arko> follow the projection http://picospace.net/?p=323
[04:42] <KT5TK> interesting
[04:43] <arko> follows*
[04:43] <arko> wow, i didnt realize that till just now, thats crazy
[04:43] <KT5TK> Congrats to VK3YT!
[04:43] <arko> that's andy right?
[04:44] <arko> is he on here?
[04:44] <arko> Darkside: ^
[04:44] <Darkside> he isnt here
[04:45] <arko> man
[04:45] <arko> that's just crazy though
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[05:23] <malclocke> awesome!
[05:24] <malclocke> maybe it will do a whole lap
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[05:29] <madist> How much current can the 1PPS output from SiRF based modules source ? I can't find it documented anywhere.
[05:29] <madist> i.e. drive a logic gate vs drive an LED
[05:30] <madist> SiRF doesn't seem to have ever published any datasheets -.-
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[05:39] <Upu> madist another reason to use ublox :)
[05:39] <Upu> enough to drive an LED I would suggest
[05:40] <madist> i hope so.
[05:40] <madist> I don't have any 2.85V mosfets.
[05:43] <Geoff-G8DHE-Tab> amell, when you say a 'path' ? I use it in GE for visualising the path a lot.
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[07:20] <lz1dev> amell, Geoff-G8DHE-Tab
[07:20] <lz1dev> have you tried http://habitat.habhub.org/mobile-tracker/track.kml ?
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[07:28] <arko> wow thats beautiful
[07:28] <arko> earth is awesome
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[07:56] <OZ1SKY_5B> Hi. Any predictions for STS-12?
[07:57] <tweetBot> @G7IGB: UK 434 MHz balloon reaches Alaska: A party balloon carrying a solar-powered 434 MHz transmitter... http://t.co/iReGkhS2Ii #hamradio #ukhas
[07:58] <OZ1SKY_5B> fantastic flight of B-63
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[08:16] <SA6BSS> sts-12 battery was predicted to last till sunday night
[08:16] <SA6BSS> predictions was central north africa
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[08:17] <Oz1SKY-5B> sorry for the con/recon, inet is a bit unstable
[08:19] <Oz1SKY-5B> pse repost freq and predictions for sts-12 if anyone sent then, while i was kicked offline
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[08:31] <astrobiologist> morning
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[08:34] <SgtBurned> mornin'
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[08:49] <Geoff-G8DHE-Tab> lz1dev, didn't get round to saying thanks for that! Much improved over the original one I was always changing colours to make it look good!
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[08:54] <lz1dev> Geoff-G8DHE-Tab: no worries
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[08:54] <lz1dev> the age of floaters have caught SNUS off guard :)
[08:55] <Geoff-G8DHE-Tab> Yes changes come quick from most unlikely directions!
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[08:56] <Geoff-G8DHE-Tab> Right going mobile in t/he campervan catch up later!
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[09:51] <G8KNN> B-63 reappears. Heading towards Oregon!
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[10:03] <fsphil> not far from arko now
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[10:04] <fsphil> don't think it'll get that far south though
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[10:08] <daveake> If it does, he'll be a tad excited :)
[10:09] <LeoBodnar> does anybody remember a video SP9UOB Tom posted sometime ago showing a launch in central europe (slovakia?) where balloon escaped without the payload?
[10:09] <gonzo___> there was something on the bbc recently about the jetsrtream and had a bit about the jap baloon bombs
[10:12] <SA6BSS> new challange Worked All States HAB :)
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[10:15] <SgtBurned> I wonder if you can make a grid with nichrome wire... Should burn through from one corner to the opposite side nicely :D
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[10:17] <mikestir-work> yay b63
[10:18] <craag> looks like arko needs a road trip. now.
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[10:20] <fsphil> lol wake up arko
[10:21] <fsphil> the matrix,,.. I mean, the B-63 has you
[10:21] <NigeyS> arko it's in you garden wakey wakey ! :D
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[10:22] <craag> only in the USA: 15h road-trip = in your garden
[10:22] <SA6BSS> Is it Arko that is located in the US
[10:22] <SA6BSS> ?
[10:22] <craag> Yes, in LA
[10:22] <SA6BSS> oki
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[10:23] <SgtBurned> Hello Jed
[10:23] <SgtBurned> :)
[10:24] <jededu> pm
[10:27] <DL7AD_> B-63 reached the US!
[10:27] Nick change: DL7AD_ -> DL7AD
[10:28] <SgtBurned> THIS IS FOR THE TEA YOU DUMPED! ATTAACCK!!
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[10:28] <fsphil> heading for Canada
[10:28] <fsphil> after a quick flyby of Seattle
[10:32] <qyx_> LeoBodnar: yep.. but no links
[10:32] <qyx_> there were 3 payloads or so and the last one remained on the ground
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[10:36] <F1VJQ> heading for Portland, Oregon
[10:37] <SpeedEvil> I was just about to say Woo - when I realised you've all noticed.
[10:37] <SpeedEvil> :)
[10:38] <F1VJQ> Amazing... if B63 reaches USA then it will have done so long path!
[10:38] <SpeedEvil> It failed to cross the atlantic though
[10:40] <F1VJQ> North Pacific crossing near Bering straight more impressive though!
[10:41] <craag> amazing range on that digipeater
[10:41] <craag> hmm: antenna HAAT 640 ft
[10:41] <craag> might have something to do with it
[10:41] <SpeedEvil> F1VJQ: yes - I wasn't at all serious. :)
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[10:43] <F1VJQ> SpeedEvil :-)
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[10:44] <F1VJQ> craag 2m goes better over the horizon than 70cm... but good coverage out into Pacific
[10:45] <LeoBodnar> it's also night there
[10:45] <LeoBodnar> so maybe less QRN & QRM
[10:46] <craag> congrats Leo
[10:46] <gonzo___> not much QRN at V/UHF
[10:47] <craag> What's the aprs power you use now?
[10:48] <LeoBodnar> ~15mW
[10:49] <LeoBodnar> from TX but the match is actually for 434 so not sure how much actually is radiated
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[10:50] <Maxell> jarod: let me check out https://www.youtube.com/watch?v=BFHB5HxW-qw :P
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[10:51] <mikestir-work> LeoBodnar: did you check the output spectrum when running on 2m with a 434 MHz match? When I tried with mine it was horrendous
[10:52] <LeoBodnar> i did, it was OK
[10:52] <mikestir-work> interesting. are you using switched current?
[10:53] <LeoBodnar> no, square wave
[10:53] <LeoBodnar> it has least harmonic contents
[10:53] <edmoore> not often you hear that sentence
[10:54] <LeoBodnar> but technically harmonics will fall inside ISM rules
[10:54] <mikestir-work> same. I wonder what the difference is then because I had almost as much power in the 3rd harmonic as in the fundamental
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[10:54] <LeoBodnar> have you used class-E?
[10:54] <mikestir-work> yes
[10:54] <mikestir-work> but with multilayer inductors, so the Q is going to be lower if you used wirewound?
[10:54] <LeoBodnar> well class-E has 25% DR
[10:54] <LeoBodnar> square wave has 50%
[10:55] <Maxell> jarod: heehhe mag denk ik ook allemaal niet zeker?
[10:55] <LeoBodnar> i use wirewound
[10:55] <mikestir-work> ok. I mean the Q of mine is going to be lower
[10:55] <LeoBodnar> sure
[10:56] <mikestir-work> I may fit wirewound to see what the difference is. I certainly struggle to get the full 10dBm even at quite high Vcc, which is why I ended up running at 4mW
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[10:58] <Darkside> craag: ping
[10:58] <craag> Darkside:
[10:58] <Darkside> PM
[11:03] <Laurenceb> B-63 passes 2 weeks
[11:03] <Laurenceb> nice
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[11:05] <LeoBodnar> tracker performance was not my priority for some time, i should really put it on SA and tune it better
[11:06] <LeoBodnar> but it works for now
[11:06] <Laurenceb> it wont pass CE
[11:06] <SpeedEvil> The obvious question is - is it likely to pick up the jet stream/ is the jet stream in evidence?
[11:07] <LeoBodnar> nobody said it will
[11:08] <LeoBodnar> and so won't many devboards from TI and AD
[11:08] <LeoBodnar> this is not a consumer device
[11:08] <LeoBodnar> oh not another CE discussion :D
[11:08] <gonzo___> out of interest, anyone used the rigol specans?
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[11:11] <edmoore> no, but i did look at one
[11:11] <edmoore> in middling depth
[11:11] <Laurenceb> B-63 needs a cutdown
[11:12] <Laurenceb> if it could cut down in 5 days or so itd be back in uk
[11:12] <edmoore> it looked ok for the money, but i'd probably go for a 2nd hand hp one for similar money unless i was a business and needed the guarantees. Regardless, I wanted higher freqs than it did
[11:12] <F1VJQ> B-63 is fine as it is
[11:12] <edmoore> 1.5GHz max so won't even do GPS which is about the lowest freq thing i currently do
[11:12] <F1VJQ> It might go round again!
[11:13] <edmoore> however the smallness was also attractive for a home lab
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[11:13] <edmoore> i'm quite seriously considering their 4062 (iirc) 2ch sig-gen
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[11:15] <edmoore> i'm still generally slightly suspicious of rigol though - a lot of their (perhaps now earlier) stuff had poor design decisions and bugs that just shouldn't be in a bit of lab equipment
[11:15] <gonzo___> I was looking at their offerings at the friedrichsaven show. The base level specan looked interesting. up to 1.5GHz with internal tracking gen
[11:15] <edmoore> like non-constant amplitude during sweeps on one of their siggens
[11:16] <edmoore> the kind of fundamental stuff that should just work for you to rely on it as a bit of lab equipment
[11:16] <edmoore> if you're constnatly second guessing the effects of your lab equipment, you might aswell not bother
[11:17] <edmoore> modulo probing high speed of high impedance signals, as i'm not sure you can avoid that
[11:17] <edmoore> high speed or high impedence*
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[11:17] <edmoore> gonzo___, yeah the tracking gen looks nice
[11:18] <edmoore> i mean, if you're a keen ham making all your own filter and amplifier chains and stuff, it looks like just the job
[11:19] <edmoore> but for me 1.5ghz was a bit low, and the dynamic range was a bit low for some of the weak-signal stuff i was doing, so i'm holding out for a bit of second hand hp stuff
[11:20] <gonzo___> I'd much prefer a 3ghz version, but that's just getting too expenside
[11:21] <gonzo___> I had a nice 18GHz tek specan. But the person it came from insisted it was only a loan. How tight is that
[11:22] <gonzo___> my old marconi 110MHz one was pretty useful. But that's got a fault now, and really not sure I can be arsed to fix it.
[11:22] <LeoBodnar> I got second hand HP 8595E with TG and can't be happier
[11:23] <LeoBodnar> 6.5GHz, so what if CRT?
[11:24] <gonzo___> nice. Pricey though I expect
[11:25] <gonzo___> we don't do any rf at work, so no chance of any 'bargains' to be had
[11:25] <LeoBodnar> $2500
[11:27] <rmmm__> Hey mikestir-work: How important is the pcb layout of the match / chebyshev filter?
[11:28] <rmmm__> Just looking at your board here http://www.mike-stirling.com/gallery3/var/albums/HAB/DSC_2396.JPG?m=1403724367
[11:30] <mikestir-work> rmmm__: usual RF requirements. good low inductance ground, physically small, inductors placed to avoid unwanted coupling
[11:31] <rmmm__> Ah, are the GND vias between stages there to reduce the coupling?
[11:32] <mikestir-work> yes, that's the intention
[11:32] <mikestir-work> it certainly seems to perform as expected
[11:34] <rmmm__> Sweet, I guess it's just designed for 70cms
[11:34] <rmmm__> Nice hi-res photo by the way
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[11:50] Action: amell suspects B-63 will just miss oregon and end up back in canada before it goes ashore.
[11:53] <mattbrejza> anyone updated http://ready.arl.noaa.gov/hypubout/117952_trj001.gif ?
[11:54] <mattbrejza> we need a script to generate a new one of those for every active floater every 6 hrs
[11:54] <amell> not yet. tbh, looks like its following prediction
[11:54] <amell> will do one now
[11:55] <mattbrejza> the end of the track is likely to have changed rahter than the start bit
[11:56] <amell> http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_160482&data=/hysplit_metadata&ext=html
[11:57] <amell> http://ready.arl.noaa.gov/hypubout/160482_trj001.gif - LeoBodnar
[11:57] <amell> looks like it will need to stay down 12200 or so if it is to come home
[11:58] <amell> not going as far north this time compared to previous hysplit. so should be able to maintain coverage all the way across Canada
[12:00] <amell> btw, some of the log points are filling, looks like it did a double spin in one place :)
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[12:31] <tweetBot> @timmybarry: "@G7IGB: UK 434 MHz balloon reaches Alaska: A party balloon... http://t.co/arw7NOlfKi #hamradio #ukhas" bravo - and a party there will be!
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[12:32] <LeoBodnar> amell: it's barometric, not vertical vel
[12:32] <LeoBodnar> isobaric duh
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[12:36] <malgar> woooooooooooo b63 :O
[12:36] <amell> Leobodnar: ok http://ready.arl.noaa.gov/hypubout/162577_trj001.gif
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[12:40] <amell> http://ready.arl.noaa.gov/hypubout/162698_trj001.gif - according to 12500m it is on course to come home to UK
[12:40] <amell> 128 hours to the end of the blue line.
[12:40] Action: amell looks for a sniper rifle
[12:41] Action: amell thinks fsphil might be first to hear B-63 if hes lucky.
[12:42] <mattbrejza> thats one way to win the fspihl challenge
[12:42] <NigeyS> yey see, told you it was a boomerang flight :p
[12:44] <mattbrejza> today is 2 weeks since launch
[12:44] <F1VJQ> is there an existing stay aloft endurance record?
[12:46] <NigeyS> F1VJQ probably 1 somewhere
[12:46] <amell> F1VJQ: yes, but leo already holds the first five in the list.
[12:47] <amell> www.arhab.org
[12:48] <mattbrejza> #2 is now sp3osj i think
[12:48] <amell> mattbrejza: not formally ratified yet.
[12:48] <mattbrejza> pfft
[12:48] <mattbrejza> it was long fly
[12:48] <mattbrejza> thats all that matters
[12:49] <amell> yes, but he isnt on the list at arhab so&
[12:50] Action: amell watches the live traffic stats on arhab, as you all go to check it out.
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[13:01] <LeoBodnar> amell you used yesterday's date
[13:02] <amell> leobodnar: oh poo
[13:02] <SpeedEvil> :)
[13:02] <SpeedEvil> Ut;s now 250km off the coast, heading straight for the exact border
[13:02] <SpeedEvil> at teh coast
[13:02] <LeoBodnar> the amount of cockups with Hysplit makes me think that their u interface is crap
[13:02] <amell> It is.
[13:03] <LeoBodnar> my success rate is about 80% with it
[13:03] <amell> It almost tries to do too much, that is the problem.
[13:03] <SpeedEvil> I do wonder how good a weather model your average bitcoin miners dumped GPUs could run.
[13:04] <SpeedEvil> Which leads to the obvious thought - have weather people gone ASIC?
[13:04] <mattbrejza> very unlikely surely?
[13:05] <SpeedEvil> Why?
[13:05] <amell> http://ready.arl.noaa.gov/hypubout/164226_trj001.gif - leobodnar, happy now? :)
[13:05] <SpeedEvil> hehe
[13:05] <SpeedEvil> Damn that thng needs a cutdown
[13:06] <mattbrejza> well bitcoin mining is a small fixed task
[13:06] <amell> http://ready.arl.noaa.gov/hypub/arlTraj.swf?client=gme-noaa&channel=OAR.ARL.HQ.HYSPLIT&dir=/hypubout/HYSPLITtraj_164226&data=/hysplit_metadata&ext=html
[13:06] <mattbrejza> weather forcasting is not
[13:06] <SpeedEvil> mattbrejza: weather forecasting is actually just about as fixed - not quite as much - but it's basically CFD - which is in principle ideal for ASIC speedups
[13:06] <amell> one of the tracks has a pass over central Boston.
[13:06] <fsphil> amell: lol, that'll stay in range for most of the flight
[13:06] Action: fsphil gets an igate ready
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[13:07] <SpeedEvil> mattbrejza: you're basically doing heaps and heaps of one calculation on different cells
[13:07] <mattbrejza> still doesnt seem like something you would use an asic for
[13:07] <amell> When does B-63 start broadcasting 434.500 again? 200 miles from the east coast of US?
[13:07] <SpeedEvil> I suppose it may have too much memory.
[13:08] <mattbrejza> seems like something you want massive parallelisation and SIMD
[13:08] <mattbrejza> so basically a gpu
[13:11] <Maxell> PC1PCL: goedemorgen pieter :o
[13:11] <Maxell> jij hier :o
[13:12] <Maxell> This is how I got into amateur radio :P
[13:12] <LeoBodnar> to the east of 30 W SpeedEvil
[13:12] <Maxell> fsphil: good to hear websdr dude is rolling out his html5 changes.
[13:13] <Maxell> looks neat your websdr
[13:14] <Maxell> fsphil: eek what is going on with aprs up there? "MB7UP-0 to BEACON-0 via MB7UG-0,WIDE5-4"
[13:14] <Maxell> amazing path
[13:14] <Maxell> lol TRACE4-2
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[13:26] <malgar> aprs works on straight line of sight or the signal could go further? how much?
[13:27] <SpeedEvil> It depends on the frequency
[13:28] <SpeedEvil> However - It's generally 140MHz
[13:28] <SpeedEvil> This is mostly line-of-sight
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[13:32] <astrobiologist> afternoon all
[13:40] <fsphil> Maxell: seems to be working well
[13:40] Action: fsphil uninstalls java again
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[13:45] Nick change: KingJ_ -> KingJ
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[13:54] <Laurenceb_> lol @ aprs.fi velocity
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[13:54] <Laurenceb_> its like the windows download time remaining dialogue
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[13:56] <LeoBodnar> i thought NA APRS scene is squicky clean and sanitised
[13:56] <LeoBodnar> but ... http://aprs.fi/?c=raw&call=M0XER-3
[13:57] <Laurenceb_> oh it at least uses sequence number?
[13:57] <Laurenceb_> "[Duplicate telemetry sequence, Delayed or out-of-order packet (sequence number)]"
[13:57] <Laurenceb_> lol 97mph... 162mph
[13:59] <LeoBodnar> telemetry uses sequential number
[14:01] <amell> 2014-07-22 14:12:29 BST: KB8RCO-S>M0XER-3: ?APRSP
[14:02] <amell> maybe he doesnt believe its a real position&
[14:02] <craag> ure packts leo, their all highlited as wrong! omg lern to arps
[14:02] <craag> grumble grumble.. fake digipeater.. grumble..
[14:04] <daveake> haha
[14:05] <DL7AD_mobile> :D
[14:10] <LeoBodnar> what's up with ?APRSP request? I think only advanced trackers and igates can answer them.
[14:12] <craag> Clearly a missing feature in your tracker LeoBodnar
[14:12] <craag> :P
[14:14] <amell> I dont see the point of ?APRSP, seeing as youre already sending position reports...
[14:14] <amell> I think some people may be using it to find out if youre actively listening.
[14:14] <LeoBodnar> and then...?
[14:15] <LeoBodnar> send meaningful message?
[14:15] <amell> if you respond to the ?APRSP they then ask for your name, sex, and current ailments.
[14:18] <craag> Note that setting sex to female, while in the spec, is not widely supported and may cause issues on many igates/digipeaters
[14:25] <Laurenceb_> lol
[14:29] <gonzo___> is there a preset grumble/moan flag?
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[14:30] <daveake> and a preset piles flag
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[14:31] <gonzo___> don't, I has a mouthfull of tea then
[14:31] <gonzo___> had
[14:31] <NigeyS> lol
[14:31] <daveake> lol
[14:31] <NigeyS> want a wet wipe for the screen?
[14:33] <gonzo___> hehe, would not be the first time they have work tea
[14:33] <gonzo___> worn
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[14:37] <matfu2> erm hi is there someone I can ask a question on these high altitude balloons
[14:38] <daveake> nope nobody at all
[14:38] <daveake> just ask :)
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[14:40] <SpeedEvil> Statistically, if you're asking about 'these ballons' you probably want Leo
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[14:41] <daveake> Do they count as "high altitude"? :p
[14:41] <astrobiologist> back in a mo
[14:41] <matfu2> I noticed on http://spacenear.us/tracker/ that HABs have a tendency to cross countries (and indeed continents)... do they all go that far? It might be hard to retrieve anything I launch if I have to get a plane
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[14:42] <daveake> most flights use latex balloons and most of those go up for 1.5 - 2 hours then pop then land
[14:42] Nick change: IRC_ukhas -> astrobio_
[14:42] <mattbrejza> unfortinetly there are no "up-down'ers" on the map atm
[14:43] <daveake> And mostly those would land in the same country
[14:43] <daveake> Some flights deliberately float and some of those stay up for days if not longer
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[14:44] <astrobiologist2> third time lucky
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[14:44] <matfu2> so I don't really need to worry that it will flee the country unless I specifically want it to? That's good news
[14:45] <mattbrejza> http://predict.habhub.org/#!/uuid=e2270ce3fdfd7c4d52064c2dbe2988d94395e144
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[14:45] <SpeedEvil> You can usually get predictions for landing for such a up/down flight to within a 30km circle easily
[14:45] <SpeedEvil> predicted from just before launch
[14:45] <SpeedEvil> That is - it will land there
[14:45] <daveake> Well in winter months epecially it can be tricky to find a launch date/time when the flight doesn't leave the country
[14:46] <SpeedEvil> And yes - it depends where you are.
[14:46] <SpeedEvil> If you are in a place with a prevailing wind, and a small country - well - you've got issues
[14:46] <mattbrejza> andorra etc
[14:47] <matfu2> ah... so is there a particular time of year to launch that gives good height/low drift?
[14:50] <matfu2> and also on the GPS side is it necessary to have an active GPS antenna or will one of the small passive ones built into a GPS module do?
[14:51] <SpeedEvil> passive is fine, and it depends on your location and the daily weather
[14:52] <SpeedEvil> http://predict.habhub.org/#!/uuid=684a83a79068b982e8687337440dc07637ffd34a - for example
[14:52] <SpeedEvil> This is a prediction for if I launched a 2 hour flight now.
[14:52] <SpeedEvil> From here.
[14:52] <SpeedEvil> It would go about 20km
[14:53] <SpeedEvil> If I change the date to tomorrow, at this time, http://predict.habhub.org/#!/uuid=61da762b7dbaf5db05f4335c1208a9ff1744cdbd it looks like this
[14:53] <SpeedEvil> Going 50km
[14:53] <FuzzyLemon> Hi I'm working on getting a mobile tracking system up and running. At the moment it consists of an SDR dongle, a small magmount antenna on top of the car, laptop and internet through phone tethering. It has very short range at the moment. Is this because the antenna is so small?
[14:54] <matfu2> ok thanks
[14:54] <SpeedEvil> It is not unlikely to be high noise floor of the SDR
[14:54] <SpeedEvil> have you considered a habamp or simialr?
[14:54] <LeoBodnar> how short?
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[14:54] <FuzzyLemon> I have considered it. Is the SDR dongle inadequate for tracking flights on its own?
[14:55] <FuzzyLemon> 10cm
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[14:55] <daveake> 10cm might be a problem
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[14:56] <LeoBodnar> you should still be able to get about 50-100km on it if tracker is airborne
[14:56] <LeoBodnar> but ground-to-ground will be miserable
[14:57] <amell> how long is the magmount antenna?
[14:57] <amell> is it one that is tuned to 2m/70cm?
[14:58] <FuzzyLemon> 10cm long
[14:58] <amell> it doesnt sound like you have the right aerial. where did you get this from - let me guess it came with the dongle?
[14:58] <OZ1SKY_5B> sounds like a tv antenna magmount
[14:58] <FuzzyLemon> it came with the dongle
[14:59] <amell> chuck it.
[14:59] <amell> you need one of these: <googling>
[14:59] <Ian_> Buy a proper mobile antenna for 2m/70cm
[14:59] <OZ1SKY_5B> you need another antenne, that is tuned for the 70cm hamradio band, 434MHz
[14:59] <Ian_> The curse of long sentences . . .
[15:00] <FuzzyLemon> can they be attached to the dongle?
[15:00] <amell> yes
[15:00] <OZ1SKY_5B> you may need a converter
[15:00] <fsphil> aww
[15:00] <jonsowman> zeusbot: wake up
[15:01] <jonsowman> stupid bit
[15:01] <jonsowman> *bot
[15:01] <fsphil> <zeusbot> http://cpc.farnell.com/watson/wsm-270/wsm-270-mini-mag-antenna/dp/IT44456
[15:01] <amell> thats it. wsm270
[15:01] <jonsowman> thanks zeusbot ! :D
[15:01] <jonsowman> :<
[15:01] <fsphil> this has a BNC plug, includes a BNC<>SMA adaptor
[15:02] <fsphil> your dongle if it's an rtlsdr probably has those awful telly plugs
[15:02] <amell> it has a BNC, so you should convert to whatever your dongle.
[15:02] <fsphil> you'll need to make a small adaptor
[15:02] <fsphil> not difficult to do
[15:03] <amell> fsphil: my dongle has MCX connection
[15:03] <amell> fuzzylemon: youll find the right converter on ebay
[15:03] <OZ1SKY_5B> anyone have the freq for sts-12?
[15:03] <holders> Gentlemen, have any of you had experience of using a geiger counter on a HAB?
[15:03] <fsphil> http://cpc.farnell.com/1/1/73690-adaptor-bnc-tv-pal-plug-va230-vitelec.html
[15:04] <fsphil> aww out of stock
[15:04] <FuzzyLemon> http://www.ebay.co.uk/itm/like/251571201605?limghlpsr=true&hlpv=2&ops=true&viphx=1&hlpht=true&lpid=108&device=c&adtype=pla&crdt=0&ff3=1&ff11=ICEP3.0.0&ff12=67&ff13=80&ff14=108
[15:04] <fsphil> also the wrong bnc gender
[15:04] <amell> fsphil: yes
[15:04] <FuzzyLemon> thats the dongle and antenna i have atm
[15:04] <amell> fsphil: really useful link...
[15:05] <amell> £19 quid!!!
[15:05] <amell> Input: 75 Ohm IEC(Din) Connector
[15:05] <amell> eh?!?
[15:05] <fsphil> yea that doesn't make sense
[15:06] <fsphil> FuzzyLemon: can you take a picture of the socket on the dongle, and the plug from the antenna
[15:06] <amell> cheapest place in the UK for your bits: https://www.cosycave.co.uk/category.php?id_category=61
[15:06] <amell> note £6.10 for the dongle.
[15:07] <fsphil> craag: what radios is the websdr running on?
[15:07] <fsphil> that sentence doesn't read quite right
[15:07] <OZ1SKY_5B> i think those got a SMB connector on them
[15:07] <craag> fsphil: 4x rtlsdr
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[15:08] <fsphil> nice
[15:08] <craag> they've been 'enhanced' though
[15:08] <fsphil> oooh do tell
[15:08] <craag> the top 3 are fitted with tcxos
[15:08] <FuzzyLemon> https://www.dropbox.com/s/jrwf6jiitmshq9x/2014-07-22%2016.07.33.jpg
[15:08] <craag> they've all had copper foil added over the rfsection
[15:09] <fsphil> does that help?
[15:09] <craag> many ferrites everywhere
[15:09] <craag> yes it does
[15:09] <amell> that looks like mcx, but i am not sure.
[15:09] <craag> fsphil: martin has been responsible for the rtlsdr improvements: http://www.g8jnj.net/currentprojects.htm
[15:10] <craag> also designed the helical antennas for 2m/70cm
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[15:12] <UpuWork> hey craag
[15:12] <UpuWork> pm
[15:12] <Maxell> fsphil: I notice there are some APRS stations I decode via your websdr that do not get igated
[15:12] <FuzzyLemon> also the sdr sharp program kept freezing while I was practicing mobile tracking. Do you think that is to do with the rubbish antenna/dongle?
[15:12] <Maxell> or at least, I think so.
[15:13] <Maxell> fsphil: how much load is it to run an I gate of your websdr?
[15:13] <Maxell> Can I doo it here? -leaving the site open on slow refreshrate?
[15:13] <amell> Fuzzylemon: doesnt sound right. Not sure why it would freeze. does it do the same thing in another program
[15:16] <FuzzyLemon> do you mean another radio receiving program like gqrx?
[15:16] <FuzzyLemon> ?
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[15:16] Nick change: OZ1SKY_5B -> OZ1SKY-5B
[15:16] <OZ1SKY-5B> damn inet connection
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[15:19] <mattbrejza> FuzzyLemon: if youre doing enough launches you might as well buy a £300 FT817
[15:20] <mattbrejza> or £150 ic10
[15:23] <fsphil> Maxell: it's craag's websdr
[15:23] <daveake> Indeed
[15:23] <fsphil> mine doesn't exist yet
[15:24] <amell> fsphil: but theres nothing to listen to :P
[15:24] <FuzzyLemon> I would need to buy a new antenna for the FT817 anyway?
[15:24] <daveake> Antenna is the same regardless
[15:24] <fsphil> thie one will be up high, so it might actually hear something
[15:24] <daveake> Might need to change the plug or use an adapter
[15:25] <fsphil> won't be terribly useful for hab'ing though :)
[15:25] <amell> fsphil: yagi with habrotate? if you are quick you could scan back and forth for B-63&
[15:25] <fsphil> colinear will be fine
[15:25] <FuzzyLemon> what would it be useful for?
[15:25] <craag> Maxell: You're welcome to igate it :) just please turn off the waterfall to save bandwidth (wifi link is suffering with leaves on the trees)
[15:26] Action: amell hands craag some agent orange
[15:26] <fsphil> I was thinking of sending the entire I/Q stream over wifi
[15:26] <fsphil> do the demodulation locally
[15:26] <fsphil> 250k sample rate
[15:27] <astrobiologist2> craag: just to confirm, I have completed all practical assessment tasks and provided covering notes by email
[15:27] <astrobiologist2> craag: off on my hols soon so wanted to check in with you in case there was anything I had missed or got mixed up
[15:27] <craag> astrobiologist2: Got all your emails thanks, will look over in the next couple of days.
[15:29] <matfu2> Has anyone on here used a geiger counter on a HAB before?
[15:29] <astrobiologist2> craag: thanks, I really appreciate it.
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[15:30] <FuzzyLemon> Would the FT790 do the same job as the FT817? Its cheaper
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[15:31] <daveake> It's an old but excellent model. So long as you get a fully working one then yes it'll be very good for the task.
[15:31] <GW8RAK> FT790 is a good radio as is the Yupiteru 7100 receiver/scanner.
[15:32] <daveake> Also AOR AR8000
[15:32] <daveake> (scanner)
[15:32] <daveake> Any of these will be much better than the SDR and won't crash your laptop
[15:33] <FuzzyLemon> is that the main advantage of these expensive radios?
[15:34] <OZ1SKY_5B> Ar8000 works well, preamp is good to have though
[15:37] <astrobiologist2> please tell more about ic10. is it a transceiver? I would like to take a step up from my kenwood one day but ft817 a bit dear
[15:38] <FuzzyLemon> do you think b63 will come back to England?
[15:39] <amell> it may well do, if leos luck holds out.
[15:39] <amell> first party balloon circumnavigation?
[15:39] <fsphil> that we know about
[15:40] <fsphil> first with a tracker hopefully
[15:40] <GW8RAK> IC-R10 is receive only astobiologist2
[15:40] <GW8RAK> A pilot friend has reported party balloons at 30K feet
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[15:42] <FuzzyLemon> thanks for your help. have a nice day
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[16:05] <astrobiologist2> Any other portable, battery-powered transceivers out there that can at least receive SSB?
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[16:12] <craag> there's the ft897, but it's rather ugly
[16:16] <astrobiologist2> define ugliness in a radio?! :-)
[16:16] <Maxell> craag: there is no off function... Just spectrum, waterfall (+weak and strong variants)
[16:17] <Maxell> oh mobile version has blind
[16:17] <Maxell> to save bw
[16:17] <craag> Maxell: main version has blind too
[16:17] <craag> on the left
[16:17] <astrobiologist2> 900 quid, ouch
[16:18] <LeoBodnar> will renew APRS to snus updates after short interruption....
[16:21] <arko> just pinged my seattle friends
[16:21] <arko> no real need as the city has good aprs coverage
[16:21] <arko> but to have fun decoding
[16:21] <mfa298> astrobiologist2: reading a small amount of scroll back, if you wanted a multiband transceiver with SSB then the 817 is one of the cheapest options out there
[16:22] <craag> Maxell: btw you could do it in a far more clever way, the webpage uses a websocket to stream audio data down from the SDR
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[16:22] <craag> with GET requests back upstream to change the frequency and mode
[16:22] <astrobiologist2> mfa298: seems so, will just have to save up or maybe pimp my TH-F7E maybe with a yagi etc
[16:22] <craag> eg GET /~~param?f=144308&band=3&lo=-8&hi=8&mode=4&name=M0DNY
[16:23] <craag> websocket url is ws://websdr.suws.org.uk/~~stream?v=11
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[16:24] <mfa298> if it's not an urgent rush best bet is to just keep watching ebay as sometimes you can get lucky and get one cheaper than the average.
[16:24] <mfa298> although unlikely to be much under £350 for an 817
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[16:25] <mfa298> club junk sales / radio rallies / silent key sales can be worth a browse as well as sometimes you can get good stuff at cheap prices
[16:25] <Maxell> craag: yes I would love to just mplayer it all might just hack that
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[16:27] <Maxell> so it can run headless on pi or sth next to my normal igate
[16:29] <astrobiologist2> thanks mfa298
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[16:32] <amell> well, looks like B-63 is definately going to miss Oregon: at least it will be in Canada, and might enter new york later.
[16:34] <amell> Leobodnar: youre getting more ?APRSP love
[16:34] <amell> 2014-07-22 16:00:22 BST: G6UIM>ANSRVR: CQ BALLOON UK Balloon B-63 now over Washington State M0XER-3 on+
[16:35] <craag> Maxell: Let me know what you come up with - there's a few microwave people who've pondered having JT65 beacon monitoring running 24/7 on the microwave bands through the websdr, so some sort of websdr -> audio script would be very useful!
[16:36] <craag> also 434.500 -> script -> fldigi might be useful :P
[16:39] <Maxell> craag: how do I websockets? heheh linux fifo might even work too in that case.
[16:39] <Maxell> I'll figure something out first get pymultimonaprs working here
[16:40] <craag> Maxell: There'll be a lib for your favoured programming language out there
[16:40] <Reb-SM0ULC> craag: echo "rm -rf /" | 434.500
[16:42] <astrobiologist2> talking about microwaves, I've pondered getting a transverter from 144Mhz, do-able?
[16:42] <Reb-SM0ULC> astrobiologist2: to what fq?
[16:43] <astrobiologist2> 10Ghz initially since only have foundation license
[16:43] <astrobiologist2> oops going into a tunnel, catch you later!
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[16:46] <jededu> Does anybody have an example of a parsed string using DDMM.mmmm I need to see how its formatted
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[16:53] <astrobiologist> on the tube wifi
[16:53] <LeoBodnar> interesting long-term changes in altitude of B-63. Either pressure or ground re-radiation levels
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[16:54] <arko> how long do you think these balloons will last?
[16:54] <arko> diffusion?
[16:54] <LeoBodnar> no idea
[16:54] <LeoBodnar> microholes are bigger danger than diffusion
[16:55] <arko> ah
[16:55] <arko> that makes sense
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[16:55] <LeoBodnar> micrometeorites, space debris and radiation events
[16:55] <LeoBodnar> it's wild out there in spaaaace
[16:56] <arko> haha
[16:56] <arko> i still need to make that shirt
[16:56] <arko> "it's not a fault, its a radiation event"
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[16:56] <amell> Leobodnar: what long term change?
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[16:57] <astrobiologist2> Euston
[16:57] <amell> Leobodnar: strange dip datapoint on the 21st July.
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[16:59] <amell> 5k until B-63 is over the commonwealth again.
[16:59] <amell> this would make a good daily mail story.
[16:59] <LeoBodnar> seems to be genuine GPS glitch
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[17:00] <arko> daily mail? really?
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[17:00] <arko> isnt that the fox news of the uk?
[17:00] <amell> party balloon reaches US from UK, the wrong way.
[17:00] <LeoBodnar> "Exclusive: My toenail made a trip around the world!"
[17:00] <amell> much more positive than the complete shite they have been publishing this last week.
[17:01] <arko> just dont read it
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[17:06] <jcoxon> evening all
[17:06] <jcoxon> B-63 about to make landfall
[17:06] <LeoBodnar> evening
[17:07] <jcoxon> LeoBodnar, congrats again
[17:07] <LeoBodnar> thanks again James :D
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[17:08] <jcoxon> along way from http://wiki.ukhas.org.uk/projects:picoatlas:picoatlasi#monday_-_launch
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[17:09] <LeoBodnar> who would have thought...
[17:09] <jcoxon> hehe
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[17:09] <F1VJQ> B-63 Welcome to Canada... Congratulations LeoBodnar passes within 10km of VE7PRT
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[17:10] <LeoBodnar> thanks F1VJQ!
[17:10] <LeoBodnar> I'll open a bottle of maple syrup
[17:10] <LeoBodnar> jcoxon: that mist westerly flight challenge...
[17:10] <LeoBodnar> most
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[17:11] <jcoxon> yeah but you have to go west!
[17:11] <jcoxon> not east++
[17:11] <LeoBodnar> exactement
[17:11] <jcoxon> going to be a challenge
[17:11] <LeoBodnar> just shows how carefully rules need to be thought out
[17:11] <jcoxon> yes indeed
[17:12] <amell> LeoBodnar: has anyone worked out what the arhab distance submission is going to be - wondered if you had a figure so far.
[17:12] <jcoxon> its going to head quite far north from the looks of it
[17:12] Action: cm13g09 siighs.... LEO!
[17:12] <amell> lets hope B-63 does not become a polar bears meal.
[17:14] <astrobiologist2> I have proven it is possible to log on to the London Underground wifi from a moving train station by station, and just have time to log in to IRC and #highaltitude, and perhaps type a word or two, before the train goes into a tunnel again
[17:14] <astrobiologist2> but frankly it seems a bit pyrrhic
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[17:15] <Ron_G8FJG> I had to look it up !
[17:15] <astrobiologist2> I think I was asking about microwave transverters... I have a foundation license at the moment which allows me to transmit on 10Ghz at 1W
[17:16] <astrobiologist2> I understand I could use a transverter from 144Mhz, but if it is too difficult or too expensive then I will put the idea aside
[17:17] <amell> looking at aprs coverage. on B-63s journey north, looks good up to about 57 degrees N. on the way back down to new york, aprs coverage starts c. 50 deg N
[17:19] <Ron_G8FJG> astrobiologist .....DB6NT look up his kits 144 i/p 200 mw o/p 10ghz
[17:20] <astrobiologist2> thanks
[17:20] <astrobiologist2> http://www.kuhne-electronic.de/en/home.html ?
[17:21] <Ron_G8FJG> thats the guy
[17:21] <jcoxon> didn;t realise about VK3YT-8 balloon
[17:21] <jcoxon> thats looks like it crossed the pacific too?
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[17:22] <astrobiologist> http://www.kuhne-electronic.de/en/products/transverter/mku-10-g3.html
[17:22] <Ron_G8FJG> gunn diodes in my day,,, 40 odd years ago 10 mw if you were lucky... did the north sea on mine!
[17:23] <Ron_G8FJG> very good kit , its the basis of many 10ghz stations
[17:25] <astrobiologist> basically I have no garden, no roof access, and only a restricted view from my window. but I am under the heathrow approach path and I wondered if I could try aircraft bounce
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[17:28] <maxmed> is there an easy way test if a ublox gps has a gps lock whilst its wired into my arduino and tracking system? I want to make sure it genuinly doesnt have a signal rather than there being an issue with my code
[17:28] <Ron_G8FJG> yes A/S or rain scatter.... tropo can get many 100's km using ssb,,,its just a waiting game
[17:28] <Ron_G8FJG> http://www.dxmaps.com/spots/map.php?Lan=E&Frec=SHF&ML=L&Map=EU&DXC=N&HF=N&GL=N
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[17:30] <astrobiologist2> Ron_G8FJG would be FM only for foreseeable future at the IF end, is that a big limitation?
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[17:31] <Ron_G8FJG> a bit, all real dx is ssb now
[17:34] <astrobiologist2> ok, thanks
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[17:43] <Lunar_Lander> evening
[17:49] <fsphil> yay canada
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[17:50] <arko> hockey! maple! healthcare! habs!
[17:50] <aadamson> woot.... welcome to the "Great White North" Bee-63...
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[18:06] <jcoxon> LeoBodnar, over canada does it to 434?
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[18:09] <LeoBodnar> no, i don't think it's ISM there
[18:09] <LeoBodnar> so i turned it off until i clarify that
[18:09] <SgtBurned> Leo, Still don't want to tell me what Jeds up to? :D
[18:09] <astrobiologist2> you have uplink??
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[18:10] <aadamson> I *think* leo (don't live in canada so no sure), but you can have done 434.500 in CA on SSB - their band plan - https://www.rac.ca/en/rac/services/bandplans/70cm/
[18:11] <aadamson> I *know you could* in the us as our 70cm is 430-450mhz
[18:11] <BullDoger> Just curious, how are you getting telem in US with b-63 with no receivers?
[18:11] <NigeyS> APRS
[18:12] <BullDoger> I see
[18:15] <Lunar_Lander> YAY British Columbia
[18:16] <arko> mmm gravy fries
[18:16] <LeoBodnar> who's Columbia?
[18:16] <aadamson> ^^... now that's funny!
[18:16] <Lunar_Lander> xD
[18:17] <Laurenceb_> ours
[18:17] <Laurenceb_> its all ours
[18:18] <aadamson> I think that was supposed to be "it's all ours.... baby!" :)
[18:19] <amell> jededu: SgtBurned wants to know what youre up to& ?
[18:20] <SgtBurned> Shhh
[18:20] <SgtBurned> I R SPY
[18:20] <SgtBurned> Such Secrets,
[18:20] <SgtBurned> Much Stealth.
[18:20] <SgtBurned> Wow
[18:20] <amell> Why not ask him, hear it from the horses mouth so to speak.
[18:21] <BullDoger> Is b-63 at distance record yet?
[18:21] <SgtBurned> One of you lot know something more than he will tell me ;D
[18:21] <amell> BullDoger: yes, well over. someone needs to calculate it according to FAI half earth radiuses.
[18:22] <amell> mind, probably best to ask arhab guy how he wants to calculate it.
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[18:32] <astrobiologist2> quick aprs question - I have been trying to send and receive packets the last couple of days. how can I tell if anybody has heard me or if I have received any?
[18:34] <astrobiologist2> current set-up is ipad running pocketpacket with jerryrigged cable to handheld
[18:34] <DL7AD> is there somebody knows how to decode balloons launched by the meterological weather service using COAA Sondemonitor?
[18:34] <LeoBodnar> http://aprs.fi/#!call=YOURCALLSIGN
[18:35] <arko> http://aprs.fi/#!call=NOCALL
[18:35] <arko> http://aprs.fi/#!mt=roadmap&z=11&call=a%2FNOCALL&timerange=604800&tail=604800
[18:35] <arko> haha
[18:36] <astrobiologist2> you're losing me... ?
[18:38] <LeoBodnar> if your packets were heard AND submitted to the aprs-is network you should be able to find them by going to aprs.fi and searching for your callsign they were sent from
[18:39] <LeoBodnar> if somebody received them on their APRS station but did not igated to the internet then you will never know
[18:39] <Laurenceb_> http://aprs.fi/#!call=URMUM
[18:39] <LeoBodnar> the easiest is to setup an igate yourself
[18:40] <LeoBodnar> https://home.comcast.net/~wb2osz/site/
[18:40] <LeoBodnar> using a spare FM receiver or RTL dongle
[18:40] <astrobiologist2> I have been checking for my callsign on this site for a while (M6ODP and it hasn't updated so I assume no iGate is hearing me)
[18:41] <LeoBodnar> wrong http://aprs.fi/#!mt=roadmap&z=11&call=a%2FM6ODP&timerange=3600&tail=3600
[18:41] <LeoBodnar> wait you mean RF?
[18:42] <Laurenceb_> looks concerning
[18:42] <astrobiologist2> hmmm, mine is dualband so I could do APRS and hab on 434 at the same time? :-) fl-digi and an iGate client both listening to audio in?
[18:44] <astrobiologist2> I usually leave it connected over the Internet only. I have turned this off on purpose the last half hour or so. anything that shows up now should be RF via an iGate... but nothing
[18:45] <LeoBodnar> are you transmitting on 144.800 FM ? check with spare receiver
[18:45] <LeoBodnar> even better install Direwolf and igate yourself first (or at least see if packets appear on the screen)
[18:45] <LeoBodnar> then try with somebody else's igate
[18:47] <astrobiologist2> yes, 144.8
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[18:49] <astrobiologist2> no spare receiver unfortunately so can't check
[18:49] <Laurenceb_> http://www.panoramio.com/photo/21898774
[18:49] <Laurenceb_> its overhead :P
[18:50] <LeoBodnar> that's beautiful
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[18:54] <astrobiologist2> how do I know if I've received someone else's packets?
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[18:54] <LeoBodnar> is your radio APRS-decoding?
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[18:56] <LeoBodnar> Laurenceb_ do you think altitude profile reflects localised MSL pressure?
[18:56] <LeoBodnar> it does not seem to be day/night related
[18:56] <Laurenceb_> maybe
[18:56] <Laurenceb_> aiui its a measure of thickness
[18:57] <LeoBodnar> yes i know we need baro
[18:57] <LeoBodnar> so equatorial same pressure altitide will be higher?
[18:57] <astrobiologist2> PocketPacket is decoding as far as I know
[18:57] <LeoBodnar> erm lower
[18:57] <Laurenceb_> hmm
[18:57] <Laurenceb_> the air is hotter but gravity is lower
[18:58] <Laurenceb_> i dunno
[18:58] <astrobiologist2> air is thicker at poles
[18:59] <astrobiologist2> equator bulges so gravity slightly lower, and if I recall there is also a centripetal effect from the spin of the earth
[18:59] <astrobiologist2> I remember we did it in A Level Physics and it is also mentioned in "Ice Station Zebra" :-)
[19:00] <LeoBodnar> air is affected by centrifugal forces
[19:00] <LeoBodnar> /centripetal
[19:00] <F1VJQ> astrobiologist2 Re 10GHz DB6NT transverter is a great piece of kit. ideally you need a good view of horizon with a dish, and as far as I know there is NO FM activity at all on 3cm.
[19:00] <amell> and coriolis forces
[19:00] <LeoBodnar> well consider stationary atmosphere
[19:01] <astrobiologist2> F1VJQ: oh well! how about FM on 1250mhz?
[19:01] <astrobiologist2> can I tell from the raw packets whether or not I have heard them directly or whether they are just over the internet?
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[19:02] <F1VJQ> astrobiologist2 no idea... I am only interested in DX and I use SSB and a little bit of CW... which I am not very good at!
[19:02] <F1VJQ> astrobiologist2 I doubt there is much FM activity on 23cm
[19:02] <astrobiologist2> hmmm better start saving for an 817 or similar then... or a microwave cw?
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[19:04] <F1VJQ> astrobiologist2 CW on 10GHz is the way to get better results in rainscatter events... however, a portable setup on a tripod is probably better for you with no garden and no space for an antenna....
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[19:04] <astrobiologist2> F1VJQ: so what would you advise for such a setup?
[19:04] <LeoBodnar> astrobiologist2: your APRS decoding software should show decoded packets
[19:05] <LeoBodnar> and if you submitted them to aprs-is netwrok ahead of everyone else they will carry your callsign as igate
[19:06] <astrobiologist2> I don't know if PocketPacket works as an iGate, will check
[19:06] <Maxell> craag: hmm, should the igating callsign be "suws" or should I do my own callsign with suws's gps location?
[19:06] <F1VJQ> astrobiologist2 a 60cm sat dish with a home made horn feed, a DB6NT transverter and 144MHz IF rig CW/SSB. It is not a band to call CQ on in general ... rainscatter and aircraft scatter contacts take some practice.
[19:07] <astrobiologist2> F1VJQ: I have aircraft coming out of my ears, albeit at lower altitudes. will that help?
[19:08] <F1VJQ> astrobiologist2 have a look at the back issues of Scatterpoint from UK Microwave group. Look for free back issues http://www.microwavers.org/indexs.htm
[19:08] <F1VJQ> http://www.microwavers.org/indexs.htm the aircraft for long distance need to be in view of both TX and RX.... and high altitude...
[19:09] <astrobiologist2> F1VJQ unless it was someone else in London?
[19:09] <F1VJQ> astrobiologist2 oops ... lost my paste!
[19:10] <F1VJQ> astrobiologist2 well possibly, but I don't know of any stations in London itself. Activity mainly centred on contests and during good condx.
[19:10] <maxmed> finally managed to get a gps lock to test my tracking code and have had some success. It successfully transmits the datastring and now displays my callsign and the $$ sign at the start, it also starts a new line after each datastring, it also successfully saves the datastring to the sd card.
[19:10] <maxmed> The only problem is none of the gps data gets sent except for the number of satalites but it claims this is 255! so the datastring that gets sent and saved to the sd card is: $$MAX,?,?,255,?,?, code is here: efc77a749c07bb2feacfb8ff2e0618503d2f2316 can anyone see the problem?
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[19:11] <mfa298> maxmed: I think you're missing most of the url for your code there
[19:12] <maxmed> oops! here it is: https://github.com/Max-Med/tracking_code_9/commit/efc77a749c07bb2feacfb8ff2e0618503d2f2316
[19:12] <astrobiologist2> F1VJQ many thanks
[19:13] <F1VJQ> astrobiologist2 Membership of UK Microwave Group is £6 pa, and you get 10 issues of Scatterpoint. Non members can only access 2012 backwards
[19:13] <F1VJQ> astrobiologist2 have a look at website.. there is also a possibility of loaning equipment before you spend real dosh
[19:13] <astrobiologist2> F1VJQ thanks, might sign up!
[19:14] <F1VJQ> astrobiologist2 good luck... have a good read!! 73
[19:14] <Maxell> craag: ok fixed it this way http://aprs.fi/#!call=a%2FPD1ODE-1
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[19:19] <mfa298> maxmed: I believe by default in arduino floats aren't supported in sprintf so the sprintf(... "$MAX,%f...) won't work
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[19:19] <mfa298> you'll need to use something like dtostr to convert them to strings first
[19:20] <Laurenceb_> LeoBodnar: http://meteorology.lyndonstate.edu/data/web/upperair/mandatory/300.gif
[19:20] <Laurenceb_> lower at the poles
[19:20] <Laurenceb_> very odd
[19:21] <mfa298> also you might want to find a short tutorial on how best to use source code managment tools (git). Assuming all your tracking_cdoe_?? repositries are different incarnations of the same code as it's evolved over time the correct way of doing things is to have one repositry which you commit the changes to. that way the repositry tracks what's been changed each time.
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[19:22] <LeoBodnar> non-intuitive
[19:23] <mikestir> maxmed: the AVR C library does have a version of (s)(n)printf that supports float, but you have to ask for it. I assume there's a way to do that on arduino
[19:26] <maxmed> mikestir: it seems from a quick google search that although snprintf works normally with C but is not supported on arduino due to the limited memory available.
[19:26] <mikestir> it is, but you have to explicitly link that bigger version
[19:27] <mikestir> I'm talking in terms of just writing normal plain C code for the AVR chips, but the arduino is just that underneath so you should be able to do the same
[19:27] <mikestir> or use dtostr as mfa298 says
[19:27] <Maxell> craag: heard directly: "MB7UG>BEACON,WIDE3-3,qAR,PD1ODE-1:T#001,235,206,098,053,055,00000011", and then it's digipeat by MB7UW and by MB7UJ not igating that much yet
[19:28] <mikestir> is there a lift on?
[19:28] <edmoore> maxmed, can I echo mfa298's advice to go and read a tutorial on git
[19:28] <edmoore> http://git-scm.com/book/en/Getting-Started
[19:29] <amell> edmoore: I thought youd given up on us.
[19:30] <edmoore> i'm here to keep an eye on B63
[19:30] <edmoore> as it's quite interesting
[19:31] <mikestir> maxmed: the arduino layer blocks you from enabling the float-capable printf, even though the underlying c library supports it
[19:32] <mikestir> which seems like a stupid thing to do on something that's supposed to make things easier
[19:32] <mfa298> edmoore: I think you had set something up to load balance between different internet connections, was that on your OpenBSD box or did you find a nice bit of hardware to do it ?
[19:33] <edmoore> that was with pf
[19:34] <amell> If the B-63 envelope could be recovered, scientists would have a field day with it.
[19:34] <maxmed> ok, I'll have a look at that git guide, i thought the way i was doing it seemed wrong but it was the easiest way to get it working, its not the most user friendly software!
[19:34] <edmoore> i doubt it
[19:34] <edmoore> maxmed, take time to understand the problem it's trying to solve
[19:34] <edmoore> the mechanics of the itnerface are secondary
[19:34] <SpeedEvil> https://www.youtube.com/watch?v=CQnR5fhCXkQ Woo - and indeed yay.
[19:35] <SpeedEvil> Falcon 9 First Stage Return | ORBCOMM Mission
[19:35] <edmoore> amell, balloon envelopes circumnavigating the earth were fairly routine in the 60s when a lot of research was done in this area
[19:35] <edmoore> it's more a question i think of ukhas people playing catch up and realising the important factors
[19:35] <amell> So this isnt the first time?
[19:35] <edmoore> dan's talk from a couple of years ago might be informative
[19:35] <edmoore> from the ukhas conf
[19:35] <amell> got a link?
[19:35] <edmoore> amell, gosh, by no means
[19:36] <amell> I mean, first time for a party balloon. Im sure its been done before with zero pressure etc.
[19:36] <edmoore> https://www.youtube.com/watch?v=jtfJuTvaHxo
[19:36] <edmoore> amell, leo's a custom
[19:36] <edmoore> are*
[19:37] <edmoore> and they're all super-pressure
[19:37] <mfa298> maxmed: if you're on windows I think the github gui app makes it pretty easy to do the right thing. But in general you have one repository which you commit to as you make changes. When you look at the repositry on the github pages it'll show lots of commits. what's shown by default is the current version but you can then get a list of the changes between versions.
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[19:39] <mfa298> so as an example https://github.com/m1ari/UKHASnet-bot/commit/60507a302266f6004e135f1ec5400cb0b2f2fe88 shows the changes I made to a bit of code to fix a bug. https://github.com/m1ari/UKHASnet-bot shows the current state of the code (and if you clicked on "66 commits" you'll see the comit history - what's been changed and when)
[19:39] <edmoore> amell, there's a talk from the following year too
[19:39] <amell> just looking
[19:39] <mfa298> That's a slightly bigger project so don't worry about the number of files in it
[19:40] <amell> love the skype Q&A recording at the end :)
[19:41] <amell> Im a bit concerned by this find: https://www.youtube.com/watch?v=Ro9mKomIuww - they actually launched nukes on floating HABs? :)
[19:42] <astrobiologist2> ALWAYS USE TELEPHONE FOR AUDIO
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[19:42] <maxmed> so i cant replace my snprintf function with a single dtostring function but need a separate dtostring function for each float in the datastring?
[19:42] <edmoore> amell, HABs were the cool-thing-of-choice before rockets got more mature
[19:43] <edmoore> immediately post-war
[19:43] <amell> yes, this could be the next big thing for Leo. Launching atomic weapons
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[19:44] <edmoore> i think it was quickly established that rockets were the more convenient platform for killing everyone
[19:44] <mfa298> maxmed: if you're using dtostr you'll need to do that for each float value, then you can do a similar snprintf but use %s instead of %f and use the char[] versions of the numbers
[19:44] <amell> they would presumably have greater precision and controllability.
[19:44] <Maxell> Leo's ISM APRS is on 434.500 MHz? FM or USB?
[19:45] <edmoore> and range
[19:45] <edmoore> and speed
[19:45] <edmoore> you can get anywhere in the world in a few minutes
[19:45] <craag> Maxell: He uses the regional amateur radio aprs frequencies
[19:46] <craag> commonly 144.8/144.39
[19:46] <craag> ah I forgot he did ISM APRS too
[19:47] <craag> ignore me
[19:47] <Maxell> craag: hehe
[19:48] <Maxell> craag: it does something, igating your websdr
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[19:48] <craag> Cool :)
[19:48] <craag> Have you looked into running a websocket -> audio script?
[19:50] <maxmed> mfa298: so i should put functions like " dtostrf (flat, 10, 6, clat); " to change the lattitude float to a lattitude char just before the snprintf fuction? then at the start define clat like: " char clat;"?
[19:51] <astrobiologist2> any websdr close enough to London that it might be picking up my packets on 144.8?
[19:51] <craag> astrobiologist2: Not that I know of :(
[19:52] <astrobiologist2> craag: thanks anyway
[19:54] <mfa298> when you define clat you'll need to give it enough space to store the string so something like char clat[8];
[19:56] <maxmed> if i did clat[8] then should i do dtostrf (flat, 8, 6, clat); rather than dtostrf (flat, 10, 6, clat); ?
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[19:57] <mfa298> you'll need to look that up as I've not used that function before (I've not done much on the avr) but remember that you need the \0 on the end of the char array so check if the size value you're passing in includes that.
[19:58] <matfu2> is anyone on here associated with "habsupplies" (http://ava.upuaut.net/)
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[19:58] Action: mfa298 peers at Upu
[19:58] Action: amell winks at Upu
[20:00] <Upu> hi matfu2
[20:00] <Upu> I am the one you're looking for
[20:00] <matfu2> hello there
[20:01] <Upu> evening
[20:02] <matfu2> I'm just having a look at the NTX2B (http://ava.upuaut.net/store/index.php?route=product/product&path=71_63&product_id=92) and the page tells me to visit this IRC so I can hear about the ordering options
[20:02] <Upu> awesome someone does read what I type :)
[20:02] <Upu> private message
[20:02] <astrobiologist2> Ron_G8FJG: sorry I missed you, yes I am still tx'ing on 144.8
[20:03] <edmoore> upu's ordering options seem to be an extremely effective way of getting people onto the channel and thus brainwashed into doing things our way
[20:04] <Upu> and that
[20:05] <Lunar_Lander> xD
[20:09] <Maxell> craag: not yet, how do I websocket?
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[20:32] <maxmed> to change the speed to a char from a float would i do: char cgps.f_speed_mps()[8]; dtostrf (flat, 10, 4, cgps.f_speed_mps()); ?
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[20:40] <craag> Maxell: Look around - there's plenty on it. I haven't played with it outside of nodejs
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[20:52] <Willdude123> Does anyone know how Matt is planning on funding norbiter
[20:53] <SgtBurned> What is the CRC16 Algorithm used in FLDIGI ?
[20:55] <mikestir> you mean the ukhas one?
[20:55] <mikestir> crc-ccitt with an initial value of 0xffff
[20:55] <craag> SgtBurned: crc16-ccitt
[20:55] <craag> snap ;)
[20:55] <SgtBurned> Okay thanks guys
[20:56] <maxmed> Ok I think i have fixed code so will hopefully work now, will test it tommorow. Here is code: https://github.com/Max-Med/tracking_code_9/commit/80ae1c8558e60e5d860a4edc31c6fe66d2f28f95#diff-0 can you let me know if i have used git correctly allowing you to track changes?
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[21:00] <craag> Maxell: Using websocket-client in python its easy to get the audio stream coming down
[21:00] <daveake> maxmed You should include a "sentence count" in your tx string, and also the GPS time
[21:00] <craag> I believe it's ogg encoded, playing it seems to be more difficult
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[21:01] <daveake> Also you have clat[8] but dtostrf (flat, 10, 6, clat);
[21:01] Nick change: myself -> myself-gtfo
[21:01] <daveake> That won't go well
[21:01] <daveake> Ditto clon
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[21:02] <daveake> Also no need to send the altitude as a float
[21:02] <daveake> cmps is too short for the usage too
[21:03] <maxmed> daveake: yes I'd realized that but forgot to include it, I'll test if it works as is then add sentance etc. also I've got to add initializing gps in flight mode. I though that the clat[8] could cause problems, i mentioned it earlier but we weren't sure if it would be ok, should I change it to dtostrf (flat, 8, 6, clat); ?
[21:03] <daveake> I wouldn't bother testing as-is; it's wrong
[21:04] <daveake> Think about the "printed" length of the values you're converting to strings
[21:04] <maxmed> I meant esting without adding in the sentance count and GPS time, I'll make these other changes
[21:04] <daveake> (maximum length that is)
[21:04] <daveake> worth adding those right away
[21:04] <daveake> count tells you you're actually building a new sentence each time
[21:05] <daveake> and the GPS time gives you confidence the gps is getting a lock
[21:06] <myself-gtfo> Don't most GPS chipsets continue to output time after they've lost lock, provided they've had it at least once?
[21:06] <maxmed> is altitude sending as a float? i thought I'd changed it to a chars ?
[21:06] <daveake> I realise you copied this maxmed, but why oh why do people keep doing this:
[21:06] <daveake> + if (c & 1) rtty_txbit(1);
[21:06] <daveake> +
[21:06] <daveake> + else rtty_txbit(0);
[21:07] <daveake> <sigh>
[21:07] <daveake> Programmers don't get paid per line :/
[21:07] <SgtBurned> Pay by the Coffee consumption. More Coffee = More Stress which is relative to code done.
[21:08] <NigeyS> amen to that
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[21:08] <maxmed> so you'd prefere if{ (return) (c & 1) rtty_txbit(1) (return) } ?
[21:09] <daveake> noooooooooooooooooooooooooooooo
[21:09] <DL1SGP> oh hi there daveake, hi all
[21:09] <daveake> I mean rtty_txbit(c)
[21:09] <daveake> the end
[21:09] <SgtBurned> "A programmer is just a tool which converts caffeine into code" ;) True or is it True?
[21:10] <daveake> and no "return" there's more code to do aftr that bit
[21:10] <daveake> !False
[21:10] <SgtBurned> ;)
[21:10] <DL1SGP> indeed
[21:10] <DL1SGP> I need caffeine!
[21:11] <daveake> maxmed If I were you, I'd get this working (learning a lot in the process) then bin the lot and write your own
[21:11] <daveake> Then you'll actually understand the whole thing
[21:12] <maxmed> So my lat and lon are the right length (8,6) but my mps and alt are the wrong lengths?
[21:12] <Lunar_LanderA> maxmed, yea please listen to daveake
[21:12] <Lunar_LanderA> he knows it
[21:12] <Lunar_LanderA> he trained me
[21:12] <Lunar_LanderA> and the others
[21:12] <daveake> oh shit
[21:13] <DL1SGP> :D
[21:13] <Reb-SM0ULC> evening
[21:13] <Lunar_LanderA> hej Reb-SM0ULC
[21:13] <DL1SGP> Hi Reb-SM0ULC
[21:13] <daveake> maxmed Sorry not answering :-). Just figure it out and be confident you're right.
[21:13] <DL1SGP> god kvelt or whatever it was :D
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[21:17] <mfa298> maxmed: I'd say using github properly isn't so much for our benefit but in the long term it will benefit you. The idea is that each code change is tracked along with when and what you did so when something breaks it's possible within the repository to undo particular changes. For something small it might not give much benefit but as you get into larger bits of code, or things spread out over a longer period of time it can help a lot.
[21:18] <maxmed> so have i got it right now?
[21:19] <mfa298> It looks like you've created a new branch which at this point isn't somethign you need to do.
[21:21] Nick change: Willdude123 -> WillMuricah
[21:22] <WillMuricah> They have a TV station solely dedicated to NASA here
[21:22] <BullDoger> Probably still ads
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[21:22] <WillMuricah> It is awesome. They had something on cubesats and mentioned radi
[21:23] <WillMuricah> *radip
[21:23] <WillMuricah> I give up
[21:23] <Lunar_LanderA> NASA TV?
[21:23] <WillMuricah> A satellite would be really really cool
[21:23] <WillMuricah> Yah
[21:23] <BullDoger> So you gone to pickup b-63?
[21:23] <Lunar_LanderA> you can watch that on Stream in Europe too
[21:23] <WillMuricah> oh
[21:23] <Lunar_LanderA> :)
[21:23] <WillMuricah> I would love to make a cubes sat
[21:24] <WillMuricah> You could have like loads of sensors and have crowdsourced code
[21:24] <WillMuricah> So if someone has the sat passing over
[21:24] <WillMuricah> If they are capable of uploading code
[21:24] <WillMuricah> Then they could
[21:24] <WillMuricah> And it could get checked and then approved for running
[21:25] <Maxell> craag: ok I will have a look for websocket-client
[21:26] <WillMuricah> You could have people submitting code to a network of ground stations that would store and provide a listing of peoples programs
[21:27] <WillMuricah> And then you could let people vote on which ones get uploaded and run
[21:27] <WillMuricah> Sorry. Thinking out loud here
[21:27] <mikestir> sounds like a cross between arduino and that thing in the 80s where you could download bbc micro programs off teletext
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[21:27] <Niveous> hmm new to this .. notce b-63 is in bc
[21:28] <Upu> evening Niveous
[21:28] <Upu> it is
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[21:28] <Niveous> when was it launc is there a way to see it on that map
[21:28] <Upu> Either
[21:28] <Upu> http://habitat.habhub.org/mobile-tracker/?filter=B-63
[21:29] <Upu> http://spacenear.us/tracker/?filter=B-63
[21:29] <WillMuricah> mikestir: meh. I think cubesats for me a probably not feasible
[21:29] <mfa298> maxmed: i've just downloaded your various versions and tried putting them into a single repositry so you can see how things change https://github.com/m1ari/MaxMed-Tracker
[21:29] <Upu> Was launched :
[21:29] <Upu> Time: 2014-07-08 06:53:17
[21:29] <mfa298> for instance if you now look at the last commit it shows the lines you changed: https://github.com/m1ari/MaxMed-Tracker/commit/48c4c8e84c6a233760a097429775cd7ee7352e53
[21:29] <BullDoger> Holy crap
[21:30] <Upu> So duration is now 351 hours
[21:30] <BullDoger> That's bonkers
[21:30] <arko> that's leo
[21:31] <maxmed> mfa298- Thank you very much, am i able to add new versions onto that repositry or shall i continue adding them as comits to mine?
[21:31] <BullDoger> What was it filled with?
[21:31] <Upu> Helium I guess
[21:31] <arko> wow B-63 is zipping along fast
[21:31] <mfa298> maxmed: I just did that as an example so you can see how it should look.
[21:31] <Upu> about time it sped up
[21:32] <arko> 28m/s is nice
[21:32] <Upu> 64 was going slow
[21:32] <mfa298> You can always clone the repositry and upload to your own github space
[21:32] <WillMuricah> Is RTTY still used much or has it been more or less replaced?
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[21:34] <Niveous> that foot print is that for the aprs single
[21:34] <Niveous> singal
[21:34] <mfa298> the great thing when you're doing git right is you can see what changed on each commit. So I can look at Update 8 and see that's where you added the $$ to the datastring
[21:34] <arko> LeoBodnar: its going for NYC! http://ready.arl.noaa.gov/hypubout/174564_trj001.gif
[21:34] <arko> :D
[21:34] <BullDoger> So will b63 actually burst?
[21:34] <Niveous> darn it .. signal
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[21:35] <maxmed> ok, thank you again. I've made the changes daveake suggested, hopefully I've done it correctly. Here is new code: https://github.com/Max-Med/tracking_code_9/commit/7a3f5d18e23e0a01b53382920f0aef361cef16a6 it seems I am now adding them correcly and can track changes. I will try and make a repository with all the versions then delete the extra repositories
[21:36] <daveake> time is a float is it ?
[21:37] <Maxell> craag: hah as soon as I switched away from T2HAM (now on T2ENGLAND) it started igating...
[21:37] <daveake> and why are you using ccount ?
[21:38] <mfa298> maxmed: that looks like it's commited in the correct way (although you've got a slightly odd setup where you're working on a different branch rather than on master - but that's not the end of the world)
[21:38] <maxmed> I thought I'd have to change it to a char rather than a long to use snprintf, could i have left it as a long? and same for time?
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[21:39] <wenko> hello, anyone home?
[21:39] <Upu> always
[21:39] <wenko> Guys, this m0xer is about to come my way...just got an email about it...
[21:39] <wenko> I am at home looking for the downlink freq
[21:39] <wenko> APRS
[21:39] <Upu> where abouts are you ?
[21:39] <Upu> 144.390Mhz
[21:39] <wenko> Quesnel BC Canada
[21:39] <wenko> okay, then it should not be an issue for APRS...
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[21:39] <wenko> I have a node on that freq
[21:40] <Upu> nope
[21:40] <mfa298> the next trick to learn is using descriptive commit messages - git keeps track of commit versions for you so the commit message should normally describe what you've changed so something like "Changed char array size and added dtostrf functions for ...."
[21:40] <Niveous> Wenkoooooo
[21:40] <Niveous> What Up
[21:40] <Upu> its heading up towards NWT
[21:40] <Upu> http://ready.arl.noaa.gov/hypubout/174619_trj001.gif
[21:40] <wenko> Niveous: Hah, hows it going Mike
[21:40] <Niveous> ok bob funny just radom thing i was doing and you end up here
[21:41] <wenko> Yeah, I was on APRS.fi and spotted this thing, then noticed an email about it
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[21:42] <Niveous> I was look for a channel on adb-s :)
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[21:42] <Upu> speak to jarod Niveous
[21:42] <Upu> he likes his ADS-B
[21:42] <DL7AD_mobile> Ads-b probably?
[21:42] <Maxell> craag: nice, your RX setup saved a few packets already: G1RRR-9>APX200,WIDE2-2,qAR,PD1ODE-1:@222139/5117.12N/00103.76W> :)
[21:42] <Laurenceb> ADS-B?!
[21:43] <Laurenceb> putting that on a HAB sounds like a bad idea
[21:43] <Upu> RX Laurenceb
[21:43] <Niveous> hmm oops ADS-B
[21:44] <DL7AD_mobile> Yeah you need much piwer for adsb
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[21:44] <Laurenceb> ah
[21:44] <Niveous> ant i made is better then the one that came with the usb rec. it hit and miss ADS-B
[21:44] <DL7AD_mobile> About 5w continuous
[21:45] <Niveous> oosp
[21:45] <Upu> may help : http://ava.upuaut.net/store/index.php?route=product/product&path=72_73&product_id=85
[21:45] <Niveous> bob here vr.niveous.ca
[21:45] <Niveous> o seen one of the us vip plane about a hr ago
[21:46] <Niveous> it was US Airforce SAM 669 - Tail 01-0041
[21:46] <Niveous> wow 50 Euro
[21:47] <Niveous> o lbs
[21:47] <Laurenceb> only 4 days to UK
[21:47] <wenko> sp5nvx around?
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[21:47] <Reb-SM0ULC> Niveous: what type of antenna did you build?
[21:48] <Niveous> if you want to call it that
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[21:48] <maxmed> here we go: https://github.com/Max-Med/tracking_code_9/commit/f74572f4a2ac13fcee802dbdaa28e4f8f09756e6 changed those floats to longs. Been so long since I had to write code so forgot the differerence between a float, long and int! I wasnt sure if i was correct changing the %s to a %l for a long in the srpintf function?
[21:48] <Niveous> http://www.sprut.de/electronic/pic/projekte/adsb/adsb_en.html
[21:48] <wenko> this ballon is about to pass over a forest fire :/
[21:49] <Niveous> just made from cable wire and a drum stick
[21:49] <wenko> lots of airborne carbon.
[21:50] <Reb-SM0ULC> Niveous: ah, did one myself, lets say i have to build another one...
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[21:50] <Reb-SM0ULC> Niveous: 350 km on stock antenna. <200 km with my own... :/
[21:51] <Niveous> I have no money to buy matrials .. that was just spare cable I had but it work better then the one it came with
[21:51] <Niveous> with stock I am only getting when it was flying over head
[21:52] <Reb-SM0ULC> Niveous: r820?
[21:53] <Niveous> I think it the NooElec
[21:53] <Niveous> NooElec NESDR Mini SDR & DVB-T USB Stick (R820T)
[21:54] <Niveous> trying to figure out my ppm
[21:54] <Reb-SM0ULC> Niveous: ppm doesn't really matter with ADS-B. but for HABing.. :)
[21:56] <Niveous> well if u goto vr.niveous you can till it not tuned right becuase I only get some of the info like missing gps cords alot
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[21:57] <Niveous> wow almost got one @ 100 nm
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[21:59] <Niveous> wenko - almost @ your house
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[22:03] <Reb-SM0ULC> wenko: you call?
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[22:09] <Niveous> his prob outside look for it
[22:10] <Lunar_LanderA> good night!
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[22:11] <LeoBodnar> oh? where is it? [22:48] <wenko> this ballon is about to pass over a forest fire :/
[22:11] <arko> oh yeah
[22:11] <arko> i forgot canada is on fire
[22:11] <Niveous> no just wenko area
[22:12] <arko> http://activefiremaps.fs.fed.us/?extent=canada
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[22:12] <Reb-SM0ULC> VK3YT-8, is that bogus data, avove south america?
[22:12] <arko> http://cwfis.cfs.nrcan.gc.ca/interactive-map
[22:13] <wenko> Hi LeoBodnar, I am not hearing the telemetry
[22:13] <wenko> I am gating the APRS, but not the UHF
[22:13] <wenko> the forest fires might give you thermal lift...
[22:13] <wenko> they are basically right in that area.
[22:13] <LeoBodnar> there is no 434.500 telemetry over the NA
[22:13] <wenko> oh
[22:14] <LeoBodnar> it is extracted from APRS and sent to snus
[22:14] <wenko> okay
[22:14] Action: wenko is VE7WNK
[22:14] <LeoBodnar> i was not 100% sure about your local regs
[22:15] <LeoBodnar> but we have a plan now
[22:15] <LeoBodnar> 70km away from you now
[22:16] <wenko> Yep
[22:16] <wenko> should this thing be visible?
[22:16] <LeoBodnar> we need someone in Yellowknife tomorrow
[22:16] <Laurenceb> maybe with binoculars
[22:16] <BullDoger> LeoBodnar, How long could this fly for?
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[22:16] <LeoBodnar> no idea
[22:16] <Laurenceb> yeah not much aprs very far north
[22:17] <LeoBodnar> wenko no way
[22:17] <mattbrejza> persumably the ultimate limit is how long can it survive befor ethe He leakes out
[22:17] <mattbrejza> -e
[22:17] <LeoBodnar> you might be able to barely see it but not find it
[22:17] <Laurenceb> scope with a tracking system
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[22:18] <BullDoger> mattbrejza, Presumably it's not started leaking at all yet
[22:18] <LeoBodnar> it's about the size of 777 nosewheel
[22:18] <mattbrejza> well He leaks through most things
[22:18] <wenko> Reb-SM0ULC: was it you that found my email addy?
[22:18] <mattbrejza> balloons included
[22:18] <wenko> If so, thanks!
[22:18] <BullDoger> Hasn't lost height though
[22:18] <mattbrejza> but if these balloons are pretty full of He then it could take a while before is starts to fall
[22:19] <BullDoger> yea
[22:19] <wenko> If it falls near here I can assemble some "hunters" but it looks like thats not going to happen
[22:19] <mattbrejza> the thing that makes it float rather than ascent is the balloon reaching a limit on its volume
[22:19] <Reb-SM0ULC> wenko: don't think so
[22:19] <Niveous> LeoBodnar guessing b-63 is yours
[22:19] <LeoBodnar> yeah mine
[22:20] <mattbrejza> so if its prtty full of He then the pressure inside the balloon might be a pretty decent amount higher than thte outside
[22:20] <mattbrejza> so itll take a while for it to leak out, then when the internal pressure falls near external pressure itll begin to descend
[22:20] <mattbrejza> or i might be talking shit, who knows :P
[22:20] <LeoBodnar> the free lift is about 5% of total gas volume
[22:21] <LeoBodnar> so 5% gas loss is the end
[22:21] <Niveous> could u put a pressure sensor inside it to mon it and then send it via aprs ?
[22:22] <LeoBodnar> in theory yes, it has been done
[22:23] <wenko> LeoBodnar: whats the ERP of the ARPS radio?
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[22:23] <wenko> I am hearing it fairly well...
[22:24] <Reb-SM0ULC> BullDoger: B-63
[22:24] <Reb-SM0ULC> Time: 2014-07-08 06:56:05
[22:24] <Reb-SM0ULC> start
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[22:25] <LeoBodnar> 10mW wenko
[22:26] Action: wenko picks jaw off the floor
[22:26] <wenko> damn...
[22:26] <wenko> amazing what a little elevation will do
[22:26] <wenko> I wish I was better set up for this.
[22:26] <stuck> balls hanging low?
[22:26] <wenko> no stuck, still up high ;)
[22:26] <stuck> its not that hot out
[22:26] <wenko> hence the channel name...
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[22:27] <Niveous> o boy stuck this is not the pot channel
[22:27] <wenko> LeoBodnar: Whats with the predicted burst?
[22:28] <wenko> That cant be for real...
[22:28] <LeoBodnar> predicted burst?
[22:28] <wenko> http://spacenear.us/tracker/?filter=B-63
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[22:29] <wenko> it shows that it expects it to burst north of here
[22:29] <Maxell> craag: for the 51.3,-1.1 position for APRS I can set ambiguity. How accurate is the location?
[22:29] <wenko> what is that based on?
[22:29] <arko> lol
[22:29] <LeoBodnar> i think it is not designed for floaters
[22:29] <Reb-SM0ULC> wenko: i did get full decode from leos b-1x at about 270 km range with simple dipol + rtlsdr. don't remember the protocol used though
[22:29] <wenko> ah...k
[22:29] <astrobiologist> a whatda? moment - my laptop can only do audio in OR audio out at any one time
[22:29] <astrobiologist> so no point trying aprs on that until I get a USB soundcard...
[22:29] <astrobiologist> better to try out dl-fldigi!
[22:30] <astrobiologist> but even with the volume of my handheld turned right up, I am only getting about 2/3rds full volume via the audio-in
[22:30] <craag> Maxell: It's a couple of miles out. Use 51.3, -1.15 to be a bit more accurate (within a mile)
[22:30] <astrobiologist> maybe the voltage divider on my cable is set too cautiously?
[22:31] <craag> Farmer is quite keen that we don't mark it publicly.
[22:31] <astrobiologist> anyway, I would like to test out dl-fldigi so I would ask: 1) are there any candidates near the south-east right now to try tuning in to and 2) will such testing cause any problems?
[22:33] <Maxell> craag: ok, will also use APRS's ambiguity feature :)
[22:33] <Maxell> craag: I do notice that it might be lagging a bit. How much delay is there?
[22:34] <Maxell> "position resolution approximately 1.9 km" :-)
[22:34] <craag> Maxell: Nothing intentional, maybe max 0.5s of buffers, plus network delay?
[22:34] <Maxell> Suffcient for igates :P
[22:34] <craag> great
[22:34] <Maxell> craag: hmm intresting.
[22:35] <wenko> would be neat to have an SSTV decode from it...
[22:36] <Maxell> "MB7UP>BEACON,WIDE5-5,qAR,PD1ODE-1" well yeah sure if someone is igating the packet directly that half of a second plus network will just add up
[22:36] <Maxell> plus we both have the aprs-is delays
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[22:37] <Maxell> hooray I'm useful http://aprs.fi/#!v=gated&call=a%2FPD1ODE-1
[22:37] <Maxell> :P
[22:37] <Maxell> afk Zzz
[22:37] <wenko> Mine is hearing it...but the delay means my packets get dumped
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[22:41] <wenko> M0XER-3>APRS63 via WIDE2-1,qAR,VE7AV-4 (seriously-bad)
[22:42] <wenko> LOL
[22:42] <wenko> aprs.fi is so opinionated
[22:43] <LeoBodnar> lol
[22:51] <astrobiologist> do people tend to squelch the audio going into their soundcard for fl-digi!
[22:51] Nick change: Willdude123 -> Flerb
[22:51] Nick change: Flerb -> Flerbmericug
[22:51] Nick change: Flerbmericug -> FlerbMericuh
[22:51] <astrobiologist> ? even
[22:52] <LeoBodnar> no
[22:52] <LeoBodnar> squelch is only good for pleasing audio
[22:53] <astrobiologist> I'm just picking up masses of static on (for example) 434.5Mhz
[22:53] <LeoBodnar> when using FM
[22:53] <LeoBodnar> dl-fldigi will deal with it
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[22:54] <astrobiologist> dumb newbie q, how do I make my station appear on spacenear.us?
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[22:54] <craag> astrobiologist: Set up location correctly - go to online mode - and you should appear.
[22:55] <LeoBodnar> http://ukhas.org.uk/_media/guides:location2.jpeg
[22:55] <craag> Follow the guide on the wiki
[22:55] <craag> or that pic ^^
[22:55] <astrobiologist> the instructions, menus etc don't seem to match the max version exactly
[22:55] <LeoBodnar> you need altitude too
[22:55] <craag> you've got dl-fldigi right? not fldigi
[22:56] <stuck> /wc
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[22:58] <astrobiologist> I think I had clicked on some help link which had taken me to fldigi wiki, but I've definitely installed dl-fldigi
[22:58] <craag> Ah ok
[22:58] <astrobiologist> looking at your pic now
[22:59] <craag> don't use internal help in it
[22:59] <craag> just the guides on the ukhas.org.uk wiki
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[23:02] <Willdude123> So am I going to need 3v3 level converters to use my GPS board with the arduino?
[23:03] <Willdude123> Because I think I designed it for 5v power and 3v3 serial
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[23:06] <astrobiologist> I've entered my location now
[23:07] <astrobiologist> I'm on the map but on wrong side of London? is west a -ve long?
[23:07] <craag> yep
[23:08] <astrobiologist> ah there it goes
[23:08] <craag> :)
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[23:10] <astrobiologist> but nothing to listen to right now
[23:13] <astrobiologist> so if Leo could just lash something together and step outside plz...
[23:14] <craag> !launch B-[n+1]
[23:15] Action: craag waits expectantly..
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[23:18] <astrobiologist> something from the "this old B? it just what I launch around the world when I don't care how I look" range
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[23:28] <Laurenceb> <hesperaux> how do I STM32 USB
[23:29] <Laurenceb> i lolled
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[00:00] --- Wed Jul 23 2014