highaltitude.log.20101115

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[00:13] <jonsowman> how are things going juxta_ ?
[00:15] <griffonbot> @darksidelemm: Driving to launch site, eta 10min #projecthorus #arhab [http://twitter.com/darksidelemm/status/3964196249145345]
[00:15] <horus-twitter> @darksidelemm: Driving to launch site, eta 10min #projecthorus #arhab
[00:15] <jonsowman> hehe
[00:15] <jonsowman> silly bots
[00:16] <Darkside> ok
[00:16] <Darkside> iminacar
[00:16] <Darkside> argh
[00:17] <Darkside> http://arseh.at/horus10
[00:17] <jonsowman> hello \o
[00:17] <fsphil> drat, no flash
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[00:18] <NigeySWales> hey guys
[00:18] <Laurenceb> http://i.imgur.com/Cwtiu.png
[00:18] <Laurenceb> header finder works XD
[00:19] <Laurenceb> $$ATLAS at 900 or so
[00:20] <Laurenceb> ideally need a header with a better autocorrelation
[00:20] <Darkside> use convolutional coding :P
[00:20] <Laurenceb> all the little peaks around 400+ are from autocorelation
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[00:22] <Darkside> we are now at a servo lol
[00:25] <fsphil> flash installed
[00:25] <fsphil> oddly smoothly
[00:26] <jonsowman> right im off guys
[00:26] <jonsowman> hope the launch goes well
[00:26] <NigeySWales> nn jon
[00:27] <NigeySWales> servo?
[00:28] <fsphil> service station?
[00:28] <NigeySWales> ohh lol prolly half asleep ere, hi phil :)
[00:29] <fsphil> hi hi ... yea 3/4 asleep here..
[00:29] <fsphil> trying to tidy up the room, but somehow just ended up moving things around
[00:29] <fsphil> at least I get to see another part of the floor for a change
[00:29] <NigeySWales> been there done that :/
[00:29] <NigeySWales> lol
[00:30] <NigeySWales> coffee all round then yup ?
[00:30] <fsphil> urg the smell of that would keep me awake
[00:32] <NigeySWales> mm nescafe gold blend lol
[00:33] <fsphil> I knew a few people who can't survive without the stuff
[00:34] <NigeySWales> i think im immune to the "keeps you awake" effect of coffee
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[00:50] <Darkside> ok
[00:50] <Darkside> weareaytthelaunchsit4
[00:50] <fsphil> ha, scared the crap outta me
[00:50] <Darkside> andimbroadcasting
[00:50] <fsphil> hello horse
[00:50] <NigeySWales> pmsl horseys!
[00:53] <NigeySWales> cool quality
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[00:55] <fsphil> a bit dark now
[00:55] <NigeySWales> yup
[00:57] <fsphil> sounds like a robin singing
[00:58] <NigeySWales> hmm does to
[00:58] <natrium42> nice stream
[00:58] <NigeySWales> wasnt expecting to see a horse mind lol
[00:58] <fsphil> okie I've no idea what that bird was
[00:59] <NigeySWales> lol
[00:59] <rhoe> The bird is a Magpie
[00:59] <rhoe> http://en.wikipedia.org/wiki/Australian_Magpie
[00:59] <NigeySWales> ooo
[01:01] <fsphil> cool. thanks rhoe
[01:02] <natrium42> who is it on the camera?
[01:02] <fsphil> yea bird watching :)
[01:02] <NigeySWales> tracker page looks messed up
[01:02] <natrium42> oh, hi Darkside
[01:02] <natrium42> :D
[01:02] <NigeySWales> hey guys
[01:02] <fsphil> hey guys lol
[01:03] <natrium42> NigeySWales, you mean the alt graph?
[01:03] <fsphil> wow the stream is on the tracker
[01:03] <rhoe> No problem fsphil
[01:03] <NigeySWales> the map itself unless FF is being weird
[01:04] <fsphil> working here, although the map is featureless where they are
[01:04] <fsphil> try zooming out
[01:04] <NigeySWales> oki nm, it was ff sorry
[01:05] <natrium42> refresh btw, i fixed the data parsing
[01:05] <natrium42> it was set to atlas
[01:07] <NigeySWales> ah okies :D
[01:08] <fsphil> yea blame the horse
[01:08] <natrium42> look at my horse, my horse is amazing
[01:08] <NigeySWales> lol
[01:09] <fsphil> heh, the way the compression is working it looks like the top of the balloon is in the clouds
[01:11] <NigeySWales> oh yer
[01:11] <NigeySWales> freaky!
[01:12] <fsphil> dark spot on the balloon
[01:13] <NigeySWales> yup right in the middle
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[01:18] <NigeySWales> boo
[01:18] <natrium42> lol
[01:18] <NigeySWales> lol
[01:19] <NigeySWales> and its off
[01:19] <natrium42> onono
[01:22] <NigeySWales> oops thought it was off then lol
[01:23] <Darkside> hehe
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[01:26] <Darkside> hey adrian
[01:26] <Darkside> weareaboutto launch!
[01:26] <vk5zsn> Hi Mark online from WA
[01:26] <vk5zsn> ok
[01:26] <NigeySWales> yey :D good luck guys :D
[01:26] <shenki> Darkside: o/
[01:26] <Darkside> youwatchingthetracker?
[01:26] <Darkside> argh
[01:26] <vk5zsn> yep
[01:27] <shenki> Darkside: WE CAN HEAR YOU REALLY LOUD
[01:27] <NigeySWales> dont take the horse with you mind! :p
[01:27] <shenki> the lighting is really bad, you're just a silhouette
[01:28] <shenki> Darkside: take the camera!
[01:28] <natrium42> automatic exposure ftl
[01:28] <shenki> woosh
[01:28] <shenki> off it goes
[01:29] <NigeySWales> weeee up n away
[01:29] <fsphil> weeee
[01:29] <fsphil> haha
[01:29] <shenki> i think mark just closed his laptop
[01:30] <fsphil> pretty slow ascent
[01:31] <Darkside> hi guise
[01:31] <fsphil> and there goes the car
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[01:31] <Darkside> we're mocing now
[01:31] <Darkside> i dunno if the tracker is going
[01:31] <Darkside> i mean, chasetracker
[01:31] <plantain> where is the predicted landing site from the offline predictor?
[01:31] <plantain> tracker is working
[01:32] <gm> Darkside: chase tracker says you're doing 45km/h
[01:32] <vk5zsn> way over the boarder Mark
[01:32] <Darkside> yep
[01:32] <Darkside> i see
[01:33] <vk5zsn> only 2m/s at the moment = long day
[01:33] <Darkside> yep
[01:33] <Darkside> yay
[01:34] <gm> vk5zsn: what's the usual rate of ascent?
[01:34] <Darkside> we were hoping for 5m/s
[01:34] <NigeySWales> what alt you aiming for Darkside ?
[01:34] <Darkside> 14km
[01:34] <Darkside> its a 100g balloon
[01:34] <NigeySWales> sweet!
[01:35] <vk5zsn> off line tracker Mark ??
[01:35] <fsphil> that predictor is amazing - it's spot on
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[01:36] <gm> yeah, seems pretty close to where it's going
[01:36] <Darkside> vk5zsn: yep
[01:36] <Darkside> i mjust getting more maps so i can see the landing site
[01:36] <Darkside> currently i only hae adelaide and mussay
[01:36] <Darkside> murray
[01:37] <fsphil> right, need some sleep. nights guys, and good luck!
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[01:37] <NigeySWales> nn phil
[01:41] <vk5zsn> Looks like a drive to Bordertown Mark & Terry.
[01:42] <griffonbot> @darksidelemm: Carputer went down, working on it now. We have backup if necessary. #projecthorus #arhab [http://twitter.com/darksidelemm/status/3986051253141504]
[01:42] <horus-twitter> @darksidelemm: Carputer went down, working on it now. We have backup if necessary. #projecthorus #arhab
[01:42] <vk5zsn> If it does land in the little desert NP then forget it 4WD only there it is a touch place to drive even then !
[01:42] <NigeySWales> eeek
[01:47] <NigeySWales> fairly steady at 2m/s
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[01:48] <NigeySWales> hi polycarbonate1_
[01:48] <Darkside> and we are back
[01:48] <NigeySWales> wb
[01:49] <polycarbonate1_> hi NigeySWales
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[01:59] <Darkside> ok current plan is to get to murray bridge, then we will switch the net back to the carputer
[01:59] <NigeySWales> okies
[02:00] <Darkside> thats why the chase car isn't updating
[02:01] <NigeySWales> i did wonder hehe
[02:01] <NigeySWales> looking good though
[02:06] <plantain> where are you now Darkside ?
[02:06] <Darkside> almot at murray bridge
[02:06] <Darkside> where we will stop and fix up the carputer
[02:06] <Darkside> so the chase car position will update again
[02:07] <Darkside> polycarbonate1_: 434.650.9
[02:07] <Darkside> if you have a receiver, can you please run dl-fldigi
[02:07] <Darkside> there's a guide on projecthorus.org
[02:08] <Darkside> that way if our receiver screws up, we have backup receivers
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[02:22] <shenki> Darkside: you're going to drive through keith! that's my old home town
[02:23] <shenki> Darkside: you should stop off at the park next to the oval and kindergarden, and ride on the monorail. best play equipment ever.
[02:25] <vk5zsn> Tery is your chase tracker position being reported?
[02:26] <gm> shenki: lol yeah, that monorail is win
[02:26] <gm> i remember that thing
[02:26] <Darkside> vk5zsn: not yet
[02:26] <Darkside> he's workign on it
[02:26] <Darkside> we're approaching tailem bend
[02:26] <Darkside> matt is now driving, terry is operating the chase gear
[02:27] <Darkside> i'm in the back seat, running the other chase gear
[02:30] <vk5zsn> ok got a posit from you just now
[02:31] <Darkside> cool
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[02:34] <juxta> hi all
[02:34] <shenki> good luck with the chase! im off to my tele 3 exam :)
[02:35] <juxta> cheers, good luck shenki :)
[02:35] <NigeySWales> hey juxta
[02:35] <Darkside> hes gone to get food
[02:36] <NigeySWales> food :o
[02:36] <Darkside> yes
[02:36] <Darkside> we are at a truckstop in tailem bend
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[02:36] <NigeySWales> oo, ill have a burger! lol
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[02:45] <NigeySWales> 10km :)
[02:45] <polycarbonate1_> signal's fading here
[02:45] <gm> just crossed 10km
[02:45] <NigeySWales> hi jasonb
[02:46] <jasonb> Hi NigeySWales.
[02:49] <Darkside> crap
[02:49] <Darkside> we're in a null
[02:49] <Darkside> that'd be wy i'm getting such shocking signal
[02:50] <polycarbonate1_> Darkside: loud and clear again here :-)
[02:50] <polycarbonate1_> I almost lost it just at 10km
[02:50] <Darkside> polycarbonate1_: then fracking decode it
[02:50] <Darkside> plz
[02:53] <polycarbonate1_> Darkside: sadly I don't have a way to get audio from the radio to the computer
[02:53] <Darkside> craaaap
[02:55] <polycarbonate1_> will there be HF for the Lonely Planet flight?
[02:57] <gm> Darkside: what sort of antenna gain would i require?
[02:58] <Darkside> you don thave the right receiver
[02:58] <Darkside> you need to be able to do single sideband on UHF
[02:58] <Darkside> and i know none of your scanners can do that
[02:58] <gm> ahh yeah, that is an issue
[02:58] <Darkside> yup
[02:59] <Darkside> makes it harder, but it means it can be decoded with crap signal
[02:59] <gm> but if i did, would i be able to get the signal?
[02:59] <Darkside> yep
[03:00] <gm> haha, the balloon is outrunning you
[03:00] <polycarbonate1_> they stopped for a bit
[03:00] <vk5zsn> looking good team.
[03:00] <Darkside> it sure is ahead of us
[03:00] <gm> polycarbonate1_: no, it's doing 124km/h
[03:00] <Darkside> we wont make it to the landing site
[03:00] <Darkside> not before it lands anyway
[03:00] <gm> as in it's going faster
[03:00] <polycarbonate1_> haha, win
[03:01] <Darkside> thanks vk5zsn
[03:01] <gm> i didn't phrase that right, i mean "the balloon has a higher ground speend than you do"
[03:01] <polycarbonate1_> yeah
[03:01] <Darkside> vk5zsn: toootaly applying at the DSTO next year...
[03:03] <vk5zsn> on you... currently writing documentation on the "thing" I have been making here !
[03:03] <Darkside> hahaha
[03:03] <polycarbonate1_> vk5zsn: awesome, same
[03:03] <Darkside> classified :P
[03:04] <Darkside> i'm hoping to be working on the uni's passive radar project next year
[03:04] <Darkside> modifying it to measure atmospheric refractivity
[03:06] <gm> Darkside: unless they move it, you'll be studying innova reflectivity instead
[03:06] <Darkside> hahaha
[03:06] <Darkside> nah
[03:07] <Darkside> it'll be pointing the other way :P
[03:07] <gm> good
[03:07] <gm> they should move it to the top of innova
[03:07] <polycarbonate1_> or Schulz
[03:07] <Darkside> innova is crap
[03:07] <Darkside> theres a msssive gas generator up there
[03:07] <Darkside> soo much RF noise
[03:07] <gm> ah yeah, that mess
[03:08] <Darkside> also for this i'm not tracking planes, i'm looking at the direct phase shift between me and the transmitter
[03:08] <gm> schulz would be just as bad
[03:08] <Darkside> also we have a system of receivers already set up at the university of bath
[03:08] <Darkside> in the UK
[03:08] <Darkside> so i'd be working with those ones
[03:09] <Darkside> 14km altitude
[03:09] <Darkside> we're expecting a burst soon
[03:09] <gm> yeah
[03:09] <polycarbonate1_> is that what that is over the lake on the tracking map?
[03:10] <Gillerire> what is on the balloon guys?
[03:10] <Darkside> nothing much
[03:10] <Darkside> just a standard telemetry payload
[03:10] <Gillerire> camera?
[03:11] <Darkside> nope
[03:11] <Darkside> this is more of a test of the offline preictor than anything
[03:11] <Gillerire> pretty kewl being able to watch it's progress live
[03:12] <Gillerire> how is it doing so far in terms of the predictor?
[03:12] <Darkside> good
[03:12] <gm> seems to be following it pretty closely
[03:12] <Darkside> nah, not that predictor gm
[03:12] <Darkside> we have one in the cars too
[03:13] <gm> oh right
[03:14] <gm> it's getting very close to predicted burst
[03:14] <Darkside> atrgh i cant get any valid data on my receiver
[03:14] <Darkside> i'm in a null..
[03:14] <gm> 15km
[03:15] <polycarbonate1_> and ascent is slowing
[03:15] <polycarbonate1_> what was that the balloon just passed on the map?
[03:15] <gm> polycarbonate1_: the clouds were the point at where it was predicted to pop
[03:16] <vk5zsn> Hope this isnt a super balloon !
[03:16] <polycarbonate1_> that's what I thought
[03:16] <Darkside> vk5zsn: urgh
[03:16] <gm> what's the highest you've had?
[03:16] <Darkside> 35km
[03:16] <Darkside> but this is a smaller balloon
[03:16] <Darkside> this is only 100g, that balloon was 1kg i think
[03:17] <gm> so when should it pop?
[03:17] <Darkside> we expected it to pop at 14km
[03:17] <Darkside> as you can see, that isn't very accurate :P
[03:17] <gm> yeah
[03:17] <Gillerire> maybe it's gonna make it to Horsham
[03:17] <Darkside> hope not
[03:18] <Darkside> fracking ROADWORKS
[03:18] <Darkside> grr
[03:20] <gm> 16km
[03:20] <vk5zsn> These Chinese balloons are great !
[03:20] <Darkside> up
[03:20] <Darkside> lol
[03:20] <gm> a bit too great it seems
[03:21] <gm> i'm just watching the target move further over and over
[03:21] <vk5zsn> you do want it go past Ngarkat park boys!
[03:21] <Darkside> heh
[03:21] <Darkside> yeah..
[03:21] <gm> why not?
[03:22] <Darkside> we do want it to go past there
[03:22] <Darkside> because we cant drive this car in that park
[03:22] <Darkside> too many dunes
[03:22] <Darkside> and we don't have any shai hulud handy
[03:22] <Gillerire> is it pressure or temperature that makes it burst?
[03:23] <Gillerire> or both?
[03:23] <polycarbonate1_> pressure surely?
[03:23] <Darkside> helim expands
[03:24] <Darkside> due to pressure
[03:24] <polycarbonate1_> although of course the balloon becomes more fragile at lower temperature
[03:24] <gm> 17km
[03:25] <gm> so much for 14 :P
[03:25] <gm> 55000 ft, scary
[03:25] <Darkside> lol
[03:25] <polycarbonate1_> win
[03:26] <Darkside> hey, horus 7 got to 35km
[03:26] <gm> yeah
[03:26] <Darkside> but that was a 1kg balloon
[03:26] <Darkside> burst
[03:26] <gm> it's burst
[03:26] <NigeySWales> parachute
[03:27] <polycarbonate1_> so what did we max at?
[03:27] <gm> ~17050 i think
[03:28] <polycarbonate1_> cool
[03:28] <gm> rather, 17350 i think
[03:28] <NigeySWales> VK5ALX : HORUS,2949,03:26:34,-35.6949,140.1605<17205,78,11;-23;-41*E734
[03:29] <NigeySWales> 17205m
[03:29] <Darkside> nice
[03:29] <gm> looks like it's going to land right near a road
[03:29] <NigeySWales> very nice
[03:29] <gm> for some degree of "right near"
[03:29] <Darkside> we're stopping to get out the R10
[03:29] <Darkside> vk5zsn: :P
[03:29] <Darkside> my yupitery is good, but not sensitive enough
[03:31] <NigeySWales> oh hang on.....
[03:31] <NigeySWales> VK5VZI : HORUS,2945,03:26:22,-35.6934,140.1581,17315,77,11;-23;-36*4913
[03:31] <NigeySWales> 17315m
[03:31] <Gillerire> what is the R10?
[03:32] <gm> Gillerire: http://www.rigpix.com/icom/icr10.htm
[03:34] <griffonbot> @nearsys: Odd temperature data from yesterday's mission. Cosmic rays also odd. I'll have the webpage updated soon. Working on the video. #ARHAB [http://twitter.com/nearsys/status/4014378357628929]
[03:35] <vk5zsn> ICOM R10 receiver for RDF.
[03:35] <polycarbonate1_> I should set up a direction finding array...
[03:35] <Darkside> pff just got another call from codan
[03:36] <Darkside> i'm now in their second round of interview
[03:36] <Darkside> and its on wednesday at 9:30am... bloody short notice
[03:36] <Darkside> andi have exams...
[03:36] <Darkside> and, oh, i don't really want to work at codan :P
[03:36] <polycarbonate1_> :P
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[03:39] <Darkside> VK5DJM: No matches were found for your query.
[03:39] <Darkside> scout...
[03:45] <gm> hmm, landing position is back inside the park
[03:45] <Darkside> yup
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[03:46] <gm> i like the curve on the altitude chart
[03:46] <gm> where the parachute is slowing it down more as the air gets thicker
[03:46] <Darkside> yup
[03:46] <Darkside> what parachute :)
[03:46] <Darkside> all we have on it is a radar reflector :)
[03:47] <gm> oh
[03:47] <gm> you mean it's streamering?
[03:48] <vk5zsn> looks like you will just be able to get it without too much walking !
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[03:51] <Gillerire> why is it predicted to suddenly head north just before it lands?
[03:51] <Darkside> wind change
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[03:52] <Gillerire> well, northeast
[03:52] <Darkside> Gillerire: are you at adelaide uni?
[03:52] <Gillerire> there is no wind higher up?
[03:52] <Gillerire> yes
[03:52] <Darkside> what department?
[03:52] <Gillerire> Centre for Automotive Safety Research
[03:52] <Darkside> ohhhh cool
[03:52] <Gillerire> doing a PhD
[03:53] <Gillerire> we semi met (i.e. were in the same room) at the hackerspace 2 wednesday's ago
[03:54] <Darkside> ohh :P
[03:57] <vk5djm> so we've got not 'chute now, hey?
[03:58] <vk5djm> or is that just the map?
[03:58] <Darkside> there was no chute
[03:58] <Darkside> and i dunno what spacenearus is doing
[03:58] <Darkside> im not watching that
[03:58] <gm_> the map was showing a chute icon
[03:58] <Darkside> we're using our own stuff
[03:58] <gm_> now it is again
[03:58] <gm_> it's probably >5m/s down = chute
[03:58] <gm_> as it's changing back and forward
[03:58] <vk5djm> spacenearus is sometimes showing a chute icon since burst
[03:59] <gm_> yeah, it just went to 5.1m/s, and the chute appeared again
[03:59] <Darkside> probably bogus data
[04:00] <Darkside> http://imgur.com/d6a35.jpg
[04:00] <gm_> well no, it's falling at about 5m/s, sometimes 4.9 (balloon icon), sometimes 5.1 (chute icon)
[04:01] <vk5zsn> good luck and dont bust the car
[04:01] <Darkside> yep
[04:01] <Darkside> i hope we'll have phone signal out there
[04:03] <Darkside> we're losing signal rom the payload
[04:04] <Gillerire> are you hoping ti retrieve it?
[04:04] <Gillerire> to*
[04:04] <Darkside> yep
[04:05] <Gillerire> how will you get it if you can't drive on those dunes?
[04:06] <vk5djm> walk :-)
[04:07] <Darkside> yup
[04:07] <Darkside> we just ran over a rabbit
[04:07] <Darkside> pre-deceased
[04:07] <Darkside> lol
[04:08] <Gillerire> it's a fair way inside that park
[04:08] <Gillerire> that's a long want to walk!
[04:08] <Gillerire> way*
[04:08] <Darkside> we should be able to drive inside it a bit
[04:09] <Gillerire> there does seem to be a road of sorts
[04:09] <Gillerire> although I'm basing this from a quite zoomed out google earth image :)
[04:11] <Gillerire> spacenearus has frozen?
[04:12] <gm_> i think they lost the signal
[04:13] <vk5djm> I'd say so
[04:13] <Gillerire> for the vehicle too?
[04:13] <vk5djm> I've just lost it
[04:13] <vk5djm> Gillerire: actually, green circle
[04:13] <vk5zsn> Probably need the cruiser to recover that. Cam go next week and grab it if they can get a good fix!
[04:14] <Gillerire> vk5djm: what's the green circle?
[04:14] <vk5djm> Gillerire: uncertainty I imagine
[04:15] <vk5djm> oh, and Darkside's the only one feeding that coords by the look of it
[04:16] <Darkside> yep
[04:16] <Gillerire> the circle was much bigger before when they had a better signal
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[04:18] <rhoe> The green ciccle is the 5 degree horizon of horus, the blue circle is the horizon of horus
[04:18] <vk5djm> thanks rhoe
[04:18] <Gillerire> right
[04:19] <Gillerire> is that kind of like, if your within the circle you might be able to spot it visually?
[04:19] <Gillerire> or more to do with line of sight for tracking?
[04:22] <rhoe> More to do with tracking I think
[04:22] <gm_> probably radio signal
[04:22] <rhoe> Anyone in the blue circle should be able to receive
[04:22] <Gillerire> very kewl
[04:23] <Gillerire> well I better go do some work
[04:23] <Gillerire> I'll check back later and see how it's going ;)
[04:24] <natrium42> Gillerire, green circle is where balloon is 5 degrees above horizon or higher
[04:24] <natrium42> blue circle is 0 degrees or higher
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[04:47] <gm_> Darkside: what's going on now?
[04:47] Nick change: gm_ -> gm
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[04:53] <vk5zsn> wouldhave hoped for 3G contact around Keith?
[04:54] <vk5zsn> I dont think they will recover this one due to access into the park.
[04:56] <gm> well maybe not recover it today
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[05:33] <plantain> Darkside: you're speeding! naughty naughty
[05:33] <gm> lol
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[06:05] <vk5zsn> any news?
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[06:27] <vk5zsn> any news?
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[06:57] <plantain> wonder what kind of terrain it is where it's landed
[06:57] <plantain> almost looks like scrub on sand dunes
[06:58] <plantain> http://en.wikipedia.org/wiki/File:Ngarkat_Conservation_Park_Tyms_Lookout.jpg
[06:58] <plantain> uh oh.
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[06:59] <Gillerire> lol
[06:59] <gm> yeah, that's going to need a 4WD
[06:59] <gm> and even then be annoying
[07:00] <plantain> that scrub is only like that because of a bushfire
[07:00] <gm> haha
[07:00] <plantain> I'm guessing it's pretty dense right about now
[07:01] <gm> oh brilliant
[07:01] <gm> so, machete time?
[07:02] <plantain> http://www.tatiara.sa.gov.au/webdata/resources/images/4wd.jpg
[07:03] <plantain> http://lh5.ggpht.com/_DJLB15OBE7M/SWgYcaYrVmI/AAAAAAAAAOg/mDjvUQVySxM/s720/01%20campsite%201.JPG
[07:03] <plantain> all they need is a commo
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[07:06] <vk5djm> toodles guys
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[07:13] <m1x10> finally my internet is back
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[08:14] <jonsowman> looks like the launch went well then
[08:14] <Randomskk> and both bots appear to have kept working
[08:14] <Randomskk> maybe griffonbot is just lonely
[08:15] <jonsowman> hehe
[08:15] <jonsowman> aww
[08:16] Action: jonsowman pats griffonbot on the head
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[09:04] <Darkside> we are not dead
[09:04] <Darkside> heading into keith now
[09:04] <Darkside> car got bogged, long story
[09:04] <Darkside> have not retrieved payload yet
[09:04] <vk5zsn> hi
[09:04] <vk5zsn> wondered what had happened
[09:05] <vk5zsn> you need Maxtracks
[09:05] <Darkside> heh
[09:05] <Darkside> yes we do haha
[09:05] <vk5zsn> so do i actually
[09:05] <vk5zsn> !!!
[09:05] <Darkside> heh
[09:05] <Darkside> well, we havent got the payload yet, so we're gonna call for help
[09:05] <Darkside> whats the south area repeater?
[09:06] <Darkside> 2m
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[09:19] <Darkside> vk5zsn: i'm uploading the traces
[09:19] <Darkside> hold
[09:19] <Darkside> http://filebin.ca/rzycud/Horus10.7z
[09:20] <Darkside> something in there will have the traces you want
[09:20] <Darkside> i think
[09:21] <vk5zsn> ok
[09:22] <vk5zsn> Damn one of the trucks would have made it ok. Oh well.
[09:23] <Darkside> yeah
[09:23] <Darkside> though some of the tracks on there don't exist
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[09:30] <vk5zsn> It would be good if your chase tracker position was on the web
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[09:33] <Darkside> yeah
[09:33] <Darkside> that machine is off
[09:34] <Darkside> we're in the keith pub atm
[09:34] <vk5zsn> ok should be able to find a game local !
[09:35] <Darkside> we're eating first
[09:35] <vk5zsn> kk
[09:37] <vk5zsn> Can get it later I expect. Dont want to loose our good record
[09:37] <vk5zsn> you could stay at the dukes motor in at bordom town !
[09:37] <Darkside> i like turtles
[09:38] <Darkside> wut
[09:38] <Darkside> damn you juxta
[09:39] <shenki> Darkside: you're alove!
[09:39] <shenki> Darkside: you're alive!
[09:40] <shenki> Darkside: keith pub, i haven't been there for about 16 years :)
[09:40] <Darkside> yes
[09:40] <Darkside> we are
[09:41] <Darkside> ants in my pants
[09:41] <shenki> are you staying there for the night?
[09:42] <Darkside> dunno yet
[09:42] <shenki> don't forget you have exams this week :)
[09:42] <Darkside> yeah i know..
[09:47] <NigeySWales> eugh soo tired :(
[09:47] <vk5zsn> Matt 5ZM is calling
[09:47] <vk5zsn> he has contacts re truck
[09:47] <vk5zsn> in Keith
[09:47] <vk5zsn> will call Terry on mobile
[09:48] <earthshine> morning
[09:48] <NigeySWales> morning earthshine
[09:48] <NigeySWales> Darkside, payload landed well ?
[09:48] <earthshine> Hey
[09:48] <earthshine> How's it going with your new toys ?
[09:48] <NigeySWales> i fell asleep just b4 :(
[09:49] <NigeySWales> its not lol, royal mail being slow as hell :(
[09:50] <earthshine> What!? You stll haven't got it ?
[09:50] <earthshine> That's ridiculously slow
[09:50] <NigeySWales> i got the arduino and gps module but everything else is literally still in the post
[09:51] <NigeySWales> starter kit, lots of stuff from SF, everything to make it all work basically hehe
[09:51] <earthshine> You got my bits though?
[09:51] <NigeySWales> not the starter kit, expecting that today
[09:52] <NigeySWales> mail down here this time of year .. first class can take a week, its hurrendous!
[09:52] <earthshine> hmm
[09:52] <earthshine> should have been there by now
[09:53] <NigeySWales> itll probably turn up today, or tomorrow, as long as its not wednesday as im out all day
[09:53] <NigeySWales> i saw on your site you wrote a book to?:o
[09:56] <vk5zsn> Mark I can see that you got close to it!
[09:58] <earthshine> NigeySWales: yeah - out in a few weeks
[09:59] <NigeySWales> amazing, i bet that was a challenge, i'll be getting the hard back ed for sure!
[10:00] <earthshine> It was the hardest 6 months of my entire life
[10:00] <NigeySWales> ouch, but i bet you'll feel it was all worth it when its in your hands in hard back :D
[10:03] <NigeySWales> vk5zsn, whats the latest ?
[10:04] <vk5zsn> They are in Keith
[10:04] <vk5zsn> Got bogged for ages at perimeter of Ngarkat park
[10:05] <NigeySWales> oh crikey lol
[10:05] <vk5zsn> Having a meal and deciding what to do. Have location of payload
[10:05] <NigeySWales> isnt that park full of dunes?
[10:05] <vk5zsn> since they could Rx when at the park boundry! Thats a definate 4wd oly place
[10:06] <vk5zsn> have played their during a fire once
[10:06] <vk5zsn> it is rough!
[10:06] <Darkside> ok
[10:06] <NigeySWales> ohh not good :( i hope they retrieve somehow
[10:06] <Darkside> spoken to matt
[10:06] <Darkside> we jave a 4wd on the way
[10:06] <NigeySWales> yey!
[10:06] <Darkside> graeme dates
[10:06] <gm> Darkside: you still got the car stuck, or are you making a second attempt at retrieval?
[10:07] <vk5zsn> with big lights?
[10:07] <NigeySWales> could get timbobel to pop over with his friends chopper? hehe
[10:07] <Darkside> dunno vk5zsn
[10:08] <vk5zsn> Darkside keep safe out there!
[10:08] <Darkside> thanks adrian
[10:12] <NigeySWales> yes be safe guys whatever you do!
[10:13] <vk5zsn> <Darkside> Whats your sleeping plans?
[10:15] <vk5zsn> Mark going clear for a while back later to hear how you gowith the local CFS chief taking you out.
[10:15] <vk5zsn> you wont have a problem now
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[10:20] <Darkside> not sure vk5zsn , might head back, might stay ariund here somewhere
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[11:42] <NigeySWales> earthshine, package just arrived, thank you :)
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[12:00] <Laurenceb_> hi
[12:01] <NigeySWales> hey Laurenceb
[12:01] Action: Laurenceb_ has got a decoder working in octave
[12:01] <NigeySWales> :o
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[12:03] <Laurenceb_> using the "deep search" technique it runs at about 1/5 real time
[12:03] <Laurenceb_> its horribly inefficient, lots of brute force
[12:04] <Laurenceb_> http://i.imgur.com/IAPHu.png thats the interleaved waterfall output, i then do a 2D search for the packet header
[12:05] <Laurenceb_> and pass it through a decoder - atm the decoder is dumb - it just stays at the same frequency and bitslicer offset
[12:05] <Laurenceb_> but jcoxons oven setup is so stable it doesnt matter
[12:06] <Laurenceb_> theres about +-4hz noise, some of which might even be doppler
[12:06] <Laurenceb_> *+-4hz frequency drift
[12:09] <Laurenceb_> http://www.robertharrison.org/listen/view.php <- i did submit some packets as UNKNOWN
[12:11] <SpeedEvil> Woo!
[12:12] <SpeedEvil> Do you have any feeling for how the noise compares?
[12:16] <Laurenceb_> my data was recorded at 250km range
[12:17] <Laurenceb_> and the ic-7000 was still going strong at that point
[12:17] <Laurenceb_> but they had a better ant
[12:17] <Laurenceb_> and it wasnt hand aimed
[12:21] <SpeedEvil> So performance somewhat unclear, but not shitty?
[12:21] Nick change: Elwell_ -> Elwell
[12:22] <Laurenceb_> yeah
[12:22] <Laurenceb_> im thinking of doing an active ant yagi
[12:22] <Laurenceb_> running 3.3v up the coax like with a gps receiver
[12:23] <Laurenceb_> reduces the issue of cable losses
[12:24] <SpeedEvil> Umm - cable losses?
[12:24] <SpeedEvil> At 433?
[12:24] <SpeedEvil> I suppose with really bad long coax.
[12:25] <SpeedEvil> Or poor matching.
[12:25] <SpeedEvil> Or with the reciever in a noisy place.
[12:26] Action: SpeedEvil ponders a crossed yagi with electronically steerable polarisation.
[12:26] <Laurenceb_> the cued ant has some really heavy duty coax
[12:26] <Laurenceb_> for low losses
[12:26] <SpeedEvil> At 433, 20m of coax isn't really an issue IIRC, for reasonable quality.
[12:26] <SpeedEvil> ~1dB
[12:26] <SpeedEvil> maybe I'm misremembering.
[12:29] <SpeedEvil> Dammit, I need a sunlight visible display.
[12:29] <SpeedEvil> Or to get out of bed and move the laptop.
[12:32] <SpeedEvil> I suppose conducted EMI to a USB reciever could be very bad.
[12:33] <Laurenceb_> im looking at 50dB/100m for rg58
[12:33] <Laurenceb_> so 10dB/20m
[12:33] <Laurenceb_> i suffer a bit from the 170KHz bandwidth of the analogue front end, and only 3 bit adcs
[12:34] <Laurenceb_> so the agc reacts to stuff that is out of band
[12:34] <Laurenceb_> doesnt look like there was anything strong enough to saturate the front end of cued rooftop
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[12:35] <Laurenceb_> so not a huge problem
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[12:35] <Laurenceb_> oddly the packets have VVV on the front
[12:35] <Laurenceb_> VVV$$ATLAS,
[12:40] <Laurenceb_> http://uk.rs-online.com/web/search/searchBrowseAction.html?method=retrieveTfg&Ne=4294961158&Nr=AND%28avl%3Auk%2CsearchDiscon_uk%3AN%29&N=4294955044+4294862034&Ns=stockPolicy_uk|1||new_uk|1&multiselectParam=4294955044&selectAttribute=RG58C/U#breadCrumb
[12:43] <SpeedEvil> ah
[12:43] <SpeedEvil> I suppose I was remembering sat cable
[12:47] <SpeedEvil> Laurenceb: Aha! I have the solution! A crystal filter on the frontend!
[12:49] <Laurenceb_> lol
[12:51] <Laurenceb_> i was thinking about a way to do FEC using CRC
[12:52] <Laurenceb_> if you have decision info from the decoder then you can run an algorythm to flip bits until the CRC matches
[12:52] <SpeedEvil> umm...
[12:52] <SpeedEvil> You mean using the onboard TX crc?
[12:52] <Laurenceb_> start with the one closest to 0 discriminator output, then the two closes bits and the possible flips
[12:52] <Laurenceb_> yes
[12:53] <SpeedEvil> As long as you have an internal CRC too, that works
[12:53] <Laurenceb_> internal?
[12:53] <Laurenceb_> on each byte?
[12:53] <SpeedEvil> CRC can only reliably detect one bit flip IIRC
[12:54] <Laurenceb_> thats true, but it doesnt have to be that reliable
[12:54] <SpeedEvil> So if you don't want the occasional false-positive packet, you need an internal CRC - an extra checksum on the packets you send - to verify that your correction is actually correct
[12:55] <Laurenceb_> yes
[12:55] <Laurenceb_> i think a parity bit of each byte would be more sensible
[12:55] <Laurenceb_> but theres proper codes that make use of decision info
[12:55] <Laurenceb_> need to read about it
[12:55] <SpeedEvil> viterbi/prml, yeah
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[13:00] <vk5zsn> Horus 10 recovered
[13:00] <SpeedEvil> :)
[13:00] <SpeedEvil> Intact?
[13:00] <Laurenceb_> XD
[13:01] <vk5zsn> Dont know the exact condition as they are out late
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[13:05] <m1x10> Hi all
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[13:07] <GW8RAK> Laurenceb - saw you posts earlier. For 70cms, a lot of amateurs use Westflex 103 with 7.5dB loss per 100m.
[13:08] <GW8RAK> If you can get it, LDF450 is very good, but expensive
[13:08] <Laurenceb_> eek the price
[13:09] <GW8RAK> It's not that bad is it? £1.50 per metre?
[13:09] <russss> someone really needs to make an ethernet radio receiver which you can just bolt onto your radio mast and control remotely.
[13:09] <GW8RAK> For a 10m run, its a lot cheaper than a preamp.
[13:09] <SpeedEvil> wifi. :)
[13:10] <russss> then you can put it as close to your antenna as possible
[13:10] <SpeedEvil> Wifi + solar
[13:10] <russss> and fuck all this cable loss
[13:10] <Laurenceb_> think ill go with active ant
[13:10] <Laurenceb_> that way i can use the cc1020 module as a tx as well
[13:10] <m1x10> http://antwrp.gsfc.nasa.gov/apod/image/1011/cupolaview_iss14_big.jpg
[13:10] <GW8RAK> Use a masthead transverter. Change to HF which has much lower losees and feed it to a good HF rx which is generally going to be better performance than a UHF rx
[13:11] <Laurenceb_> hmm
[13:11] <Laurenceb_> this has to be portable and usb powered
[13:13] <GW8RAK> For receive only, have a look at the R2 direct conversion receiver. Add a local oscillator and the performce is very good.
[13:14] <Darkside> we have the payload
[13:14] <Darkside> we got it back about an hour ago
[13:14] <Darkside> was just in someone else car
[13:14] <Darkside> went to near the predicted landing site, and could hear the payload perfectly
[13:14] <Darkside> then just walked to it (in the dark)
[13:15] <Laurenceb_> eeek
[13:15] <griffonbot> @darksidelemm: Horus 10 Payload has been retrieved! #projecthorus #arhab [http://twitter.com/darksidelemm/status/4160504108949504]
[13:15] <Laurenceb_> so many discreet transistors
[13:15] <Darkside> juxta's perfect record still stands :D
[13:15] <Darkside> 10/10 balloons retrieved
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[13:20] <vk5zsn> Horus chase team on way back to Adelaide
[13:21] <Darkside> yep
[13:21] <Darkside> we sure are
[13:21] <Darkside> :P
[13:22] <Darkside> heading to get some food and drink at tintinara, then heading back home
[13:22] <vk5zsn> Easy to get?
[13:22] <Darkside> big thanks to graeme dates :P
[13:22] <Darkside> we got within 400m of it in the car
[13:23] <Darkside> 4wd*
[13:23] <Darkside> within about 4km i could get it on the R10 well enough to get gps coords out of it
[13:23] <vk5zsn> can I interestyou in a SUV ?
[13:23] <Darkside> haha maybe juxta :P
[13:23] <Darkside> i don't have the money :P
[13:24] <vk5zsn> Lucky the it wasnt upside down with no GPS
[13:24] <Darkside> yeah...
[13:24] <Darkside> it was sitting in a bush
[13:24] <Darkside> couldn't get any pics tho it was to dark
[13:24] <vk5zsn> Payload obviously intact then.
[13:24] <Darkside> yup
[13:24] <Darkside> and still running :
[13:24] <Darkside> :P
[13:25] <vk5zsn> Any vehicle damage?
[13:25] <Darkside> nope
[13:25] <vk5zsn> how dod the off line work?
[13:26] <Darkside> pretty good actually
[13:26] <Darkside> hold on, im uploading some more traces
[13:26] <Darkside> http://filebin.ca/vvbvzc/Horus_10_Final.zip
[13:26] <Darkside> that should show the trace to the landing site
[13:26] <vk5zsn> ok
[13:26] <Darkside> the prediction was about 600m from the actual landing site
[13:27] <Darkside> spacenear.us's prediction was only about 300m off
[13:27] <vk5zsn> good job
[13:27] <Darkside> still, close enough to hear the transmiter and get a proper position
[13:27] <vk5zsn> now do you exams !
[13:27] <Darkside> yep..
[13:27] <Darkside> also we're doing our licenses after exams
[13:27] <vk5zsn> oh not this weekend then
[13:27] <Darkside> me and about 4 other people (1 lecturer included) are going through the theory next week
[13:28] <Darkside> nah, i'm working unfortunately
[13:28] <vk5zsn> with Paul?
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[13:28] <Darkside> vk5zsn: the theory stuff, no, the practical stuff. yes
[13:28] <vk5zsn> ok willlook forwards to it.
[13:28] <Darkside> we're organising to hold a practrical session on a weekend upcoming
[13:28] <Darkside> still need to get back to him about that... just been too busy with exams
[13:29] <Darkside> advanced telecomms, and power electronics are all i have left
[13:29] <NigeyMoby> Ello all
[13:29] <vk5zsn> ok I might be examining then
[13:29] <vk5zsn> hi
[13:29] <Darkside> haha cool vk5zsn
[13:29] <Darkside> oh yeah, do you know about WebSDR?
[13:29] <vk5zsn> Horus 10 chase team on way back
[13:29] <vk5zsn> have seen yes
[13:29] <NigeyMoby> Any news darkside?
[13:29] <Darkside> i'm slowly convincing some lecturers at my uni to set up one at uni
[13:29] <Darkside> i want to modify the ebSDR software to work with a USRP
[13:30] <Darkside> NigeyMoby: got the payload
[13:30] <Darkside> heading back home
[13:30] <Darkside> i'm going to have access to a USRP from next week, and i want to do somethign cool with it on HF
[13:30] <NigeyMoby> Excellent congrats on a successful mission
[13:31] <Darkside> vk5zsn: i got *very* close to buying a SDR-IQ
[13:31] <vk5zsn> that was the longest yet terry !
[13:31] <Darkside> terry is driving :P
[13:31] <Darkside> but yep, longest chase ever :P
[13:31] <Darkside> well, 'chase'
[13:31] <Darkside> chase, then bogged car, then dinner, then retrieval :P
[13:32] <vk5zsn> SDR-IQ quite useful
[13:32] <Darkside> yeah, but i think i can do the same stuff as in spectravue with the USRP
[13:32] <Darkside> of course the USRP won't be mine
[13:32] <NigeyMoby> The terrain looked challenging to say the least
[13:32] <Darkside> i'd liek to modify either a R10 or my yupiteru to provide an IF output
[13:32] <Darkside> then feed that into the SDR-IQ
[13:32] <vk5zsn> of course or use Matlab at a pinch
[13:32] <Darkside> theres anothe rprogram too
[13:32] <Darkside> winSDR or something
[13:33] <Darkside> there's a plugin to support using the USRP as an input device
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[13:34] <Darkside> i need to contact the guy who write WebSDR again, try and get the source off him
[13:34] <Darkside> so i can modify it to take input from the USRP
[13:34] <Darkside> ok we are at the tintinara roadhouse
[13:34] <Darkside> getting some foods i think
[13:34] <vk5zsn> ok nn from here
[13:34] <vk5zsn> glad you are LL SAFE
[13:35] <NigeyMoby> Irc on a mobile is overrated grr
[13:35] <vk5zsn> Hi all I am heading for bed
[13:35] <vk5zsn> catch you on the next mission
[13:36] <NigeyMoby> Nn dude
[13:36] <vk5zsn> nn
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[13:36] <NigeyMoby> Hey Phil
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[13:36] <fsphil> hiya NigeyMoby, how'd things go last night?
[13:37] <NigeyMoby> They just recovered the payload
[13:37] <NigeyMoby> Landed in some dunes I think
[13:38] <SpeedEvil> Darkside: congrats!
[13:38] <fsphil> nice
[13:38] <NigeyMoby> Burst at 17
[13:38] <NigeyMoby> Km
[13:41] <fsphil> ooh yea, see the dunes on the map
[13:41] <NigeyMoby> Right heading home bbs dude
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[14:08] <Laurenceb_> http://www.w1hkj.com/FldigiHelp-3.20/Modes/PSKdesc.htm
[14:09] <Laurenceb_> interesting
[14:09] <Laurenceb_> Narrow band modes such as PSK31 are low symbol rate, single carrier differential Binary PSK
[14:09] <Laurenceb_> Differential PSK is used to provide continuous phase changes when idle (to maintain sync), and by allowing the receiver to measure phase difference from symbol to symbol, to reduce the effects of ionospheric Doppler phase changes
[14:09] <Laurenceb_> aiui that might allow us to modulate with a ntx2
[14:10] <SpeedEvil> hmm
[14:13] <Laurenceb_> Soft bits decoding was also added to maximize the probabilities of decoding the right sequence.
[14:13] <Laurenceb_> hell yeah
[14:14] <SpeedEvil> Is that a new version?
[14:15] <Laurenceb_> no, its been around for ages- just thought it wasnt soutable
[14:15] <SpeedEvil> ah
[14:16] <Laurenceb_> i didnt realise that it did differential symbol to symbol
[14:17] <Laurenceb_> also the FEC with soft decision is new, very nice stuff
[14:17] <Laurenceb_> so youd feed the ntx2 with +ive or -ive pulses to shift the phase
[14:17] <Laurenceb_> between each symbol
[14:17] <russss> oh, soft decoding. I never knew it had a name.
[14:18] <Laurenceb_> i was thinking of implimenting this with my octave code and rtty with fec
[14:18] <Laurenceb_> as mfsk isnt that brilliant due to the afc requirements
[14:19] <Laurenceb_> but looks like this psk may be worth trying
[14:30] <Laurenceb_> http://pskmail.wikispaces.com/
[14:30] <Laurenceb_> nice
[14:33] <russss> hah, cool
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[14:43] #highaltitude: mode change '+o jonsowman' by ChanServ!ChanServ@services.
[14:43] Topic changed on #highaltitude by jonsowman!jonsowman@sheeva.hexoc.com: Welcome to #highaltitude - discuss anything to do with high altitude projects (balloons, gliders, etc) www.ukhas.org.uk
[14:43] #highaltitude: mode change '-o jonsowman' by ChanServ!ChanServ@services.
[14:45] <Laurenceb_> http://det.bi.ehu.es/~jtpjatae/pdf/p31g3plx.pdf
[14:57] <Laurenceb_> is dl-fldigi using the modems from fldigi 3.20?
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[15:01] <Darkside> http://imgur.com/2YPOf.jpg
[15:01] <Darkside> whee
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[15:04] <Laurenceb_> eek
[15:04] <Laurenceb_> did you get out ok?
[15:05] <Darkside> yeah
[15:05] <Darkside> got pulled out in the end
[15:05] <Darkside> once we walked the 3-4km to the nearest main road
[15:08] <Laurenceb_> :/
[15:08] <Darkside> yeeeeep
[15:08] <Darkside> long day
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[15:55] <Dave-M0MYA> afternoon
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[16:27] <NigeySWales> evening all
[16:27] <juxta_> what a long day
[16:27] <NigeySWales> hey juxta_ congrats on the launch / landing :)
[16:27] <jonsowman> good work juxta_
[16:27] <juxta_> launched at noon, home at 3am
[16:27] <jonsowman> glad you got it back
[16:27] <juxta_> :)
[16:27] <juxta_> thanks guys
[16:28] <juxta_> we couldnt tarnish our record ;p
[16:28] <NigeySWales> hi jon
[16:28] <juxta_> there was some creative unbogging of my car for a while
[16:28] <juxta_> then a long walk to find someone to pull us out when we failed
[16:28] <NigeySWales> lol crazyness, but you got it back, and all are safe :D
[16:29] <juxta_> yep!
[16:29] <juxta_> was rather handy having a friend with contacts in the area organize a big 4wd to come pick us up and go ploughing through the national park
[16:30] <LazyLeopard> Land in a marsh somewhere?
[16:30] <NigeySWales> haha very handy, from the sat image that terrain looked evil :/
[16:30] <juxta_> not marsh, just scrub
[16:30] <juxta_> very bad roads though
[16:30] <juxta_> well, 'roads'
[16:31] <LazyLeopard> rocky? sandy?
[16:31] <juxta_> mostly sandy here, with lots of vegetation
[16:31] <juxta_> you really need a couple of feet of ground clearance to be able to pass
[16:31] <LazyLeopard> 4wd territory.
[16:32] <juxta_> indeed
[16:32] <juxta_> offline predictor worked great though :)
[16:34] <jonsowman> excellent
[16:34] <jonsowman> glad to hear that
[16:34] <jonsowman> :D
[16:34] <NigeySWales> i guess the later burst didnt throw to much of a spanner in the works?
[16:34] <juxta_> not too much
[16:34] <juxta_> was actually a blessing I guess as we got the asc rate wrong
[16:34] <NigeySWales> good, mustve been a super balloon lol
[16:35] <juxta_> if it had burst at 15000 then it would have landed right in the middle of the park and we'd have had no chance of getting it back
[16:35] <Laurenceb_> cana nyone suggest why im seeing VVV$ATLAS, is my logged data from saturday?
[16:35] <Laurenceb_> cana nyone suggest why im seeing VVV$$ATLAS, is my logged data from saturday?
[16:35] <juxta_> was impressive for a 100g balloon
[16:35] <NigeySWales> ouch juxta_ , leveled out around 2.2m/s didnt it ?
[16:35] <juxta_> yeah around there I think
[16:38] <juxta_> alrighty, off to bed
[16:38] <NigeySWales> jonsowman, my bits from earthshine came this morning, can finally start prototyping with some of the hardware :D
[16:38] <juxta_> night all :)
[16:38] <NigeySWales> nn juxta_ and congrats once again :)
[16:38] <juxta_> hehe thanks :)
[16:39] <NigeySWales> Laurenceb, the VVV isnt meant to be there?
[16:40] <jonsowman> NigeySWales: great stuff
[16:40] <jonsowman> see you juxta_ #
[16:41] <juxta_> nn :)
[16:41] <NigeySWales> but i lost the auction for the 790 :(
[16:41] <NigeySWales> beaten by £1 lol#
[16:41] <jonsowman> D:
[16:41] <NigeySWales> went to £160 mind
[16:42] <WillDuckworth> i saw that one...
[16:42] <WillDuckworth> 160 is high
[16:42] <NigeySWales> yeah so ive been told, another has popped up so fingers crossed
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[16:48] <WillDuckworth> my one packed up the other week and now on the look for a sub £200 suitable radio
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[16:50] <NigeySWales> ouch, id love to get the 817 but just cant afford the £400
[16:51] <NigeySWales> not this close to xmas anyhow
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[16:53] <WillDuckworth> yeah - pricey
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[16:53] <spacefelix> LOL!
[16:53] <spacefelix> http://www.thespacereview.com/article/1726/1
[16:54] <spacefelix> "It's Time To Pop The Space Balloon Meme"
[16:54] <NigeySWales> lol
[16:57] <russss> absolutely agree
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[17:09] <NigeySWales> hm
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[17:13] <SpeedEvil> http://en.wikipedia.org/wiki/Project_Echo
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[17:20] <Dave-M0MYA> SpeedEvil, I like that postage stamp cf. "Military Use" :)
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[18:32] <natrium42> \o_
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[18:34] <m1x10> Hey guy
[18:34] <m1x10> s
[18:34] <natrium42> yakshemash m1x10
[18:34] <m1x10> have some website link to drop me
[18:34] <natrium42> google.com
[18:34] <m1x10> to print it so I read it in army
[18:34] <natrium42> oh
[18:34] <m1x10> electronics stuff
[18:34] <m1x10> natrium42 hi!
[18:34] <natrium42> anarchist cookbook?
[18:34] <natrium42> j/k
[18:34] <m1x10> whatever!
[18:35] <m1x10> I want to learn electronics
[18:35] <m1x10> natrium42: in my room I had 4 russians
[18:35] <m1x10> mafia 100%
[18:35] <natrium42> lol
[18:35] <m1x10> vodka,smoke and dissobey
[18:36] <natrium42> m1x10, i don't have to go to army \o/
[18:36] <natrium42> turned 27 on saturday
[18:36] <m1x10> omg
[18:36] <natrium42> now i could travel to russia if i wanted
[18:36] <The-Compiler> congrats then, natrium42 :)
[18:36] <natrium42> ty
[18:37] <m1x10> plz on the subject! Send me some link !
[18:37] <The-Compiler> natrium42: (btw, doing my first project with my DSerial Edge now :D)
[18:37] Action: m1x10 wants to kill some army-time with reading
[18:37] <natrium42> The-Compiler, cool, i haven't touch it for a while :S
[18:37] <The-Compiler> gotta go to eat now, cya later ;)
[18:37] <natrium42> m1x10, have you read the foundation series?
[18:38] <natrium42> isaac asimov
[18:38] <natrium42> cu The-Compiler
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[18:38] <m1x10> natrium42 no
[18:38] <m1x10> is it electronics?
[18:38] <natrium42> err, kinda? :P
[18:38] <natrium42> no, it's sci-fi
[18:42] <m1x10> :p
[18:44] <earthshine> NigeySWales: Glad to ehar it
[18:45] <NigeySWales> :D just sorting through it all now, great starter set!
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[18:51] <natrium42> hahaha :( --> http://i.imgur.com/lPZel.jpg
[18:55] <NigeySWales> jonsowman, do you have the ntx2 schematic thats meant to be in the ferret 2 dir ?
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[18:56] <jonsowman> NigeySWales: ah sorry, we haven't made it yet!
[18:57] <NigeySWales> ahh okies lol sowwy
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[18:57] <jonsowman> it will be around soon
[18:57] <NigeySWales> star :D
[18:57] <jonsowman> it's for ferrettwo though
[18:57] <jonsowman> which uses potential divider RTTY
[18:57] <jonsowman> rather than PWM
[18:57] <NigeySWales> thats fine, i think im going to go rtty route
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[18:59] <Dave-M0MYA> jonsowman: Is ferrettwo then a different thing to the second version of the code for ferret (i.e. the meridian-fixed code)?
[19:00] <jonsowman> yes
[19:00] <jonsowman> they are different hardware designs
[19:00] <Dave-M0MYA> ahhh - the penny is begining to drop =)
[19:00] <Dave-M0MYA> and libRTTY is a part of ferrettwo?
[19:00] <jonsowman> yes
[19:00] <jonsowman> but it generic
[19:00] <Dave-M0MYA> gotcha
[19:00] <jonsowman> is
[19:01] <Dave-M0MYA> thats fantastic
[19:03] <jonsowman> :)
[19:03] <jonsowman> librtty is, in theory, now complete I think
[19:03] <jonsowman> but entirely untested
[19:04] <Dave-M0MYA> good stuff jonsowman
[19:04] <Dave-M0MYA> us mere mortals do really appreciate the effort you lot put in to make things more accessible
[19:05] <NigeySWales> yes, you guys are definately on my xmas card list :D
[19:05] <jonsowman> hehe that's alright, it's not too difficult and we'd like Ferret to be a solid, decent reference design for everyone to use
[19:05] <jonsowman> encompassing both hardware and software
[19:06] <m1x10> yesterday I met a guy from the mechanical-physics university and he told me that he made a device that you input energy A and it outputs energy A+x
[19:06] <Dave-M0MYA> ;D
[19:06] <Dave-M0MYA> :D
[19:06] <m1x10> I said that at #sparkfun and they make fun of it
[19:07] <fsphil> he's making fun of you I think ;)
[19:07] <m1x10> he said he uses some magnets and tesla stuff
[19:07] <m1x10> I told him I dont believe you and he promised to show the thing
[19:08] <m1x10> he said those things exists from '50s
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[19:08] <Dave-M0MYA> maybe one of these: http://jnaudin.free.fr/meg/meg.htm
[19:08] <m1x10> could be
[19:08] <m1x10> he said he pantented it
[19:09] <Dave-M0MYA> I love the idea of it, but whenever you look them up the url always has something to do with conspiracy theories ;-) It makes for entertaining reading, but I'd want to see some pretty convincing evidence before I believed it =)
[19:09] <m1x10> he said his machine brakes the 2nd law of thermodynamics
[19:10] <Dave-M0MYA> People are always on about getting energy from "the vacuum". That's what I like - something for nothing =D
[19:10] <m1x10> there is no nothing
[19:10] <m1x10> energy flows everywhere
[19:10] <Zuph> You can patent almost any damn thing.
[19:10] <NigeySWales> empty space is never empty
[19:10] <m1x10> yeah
[19:10] <NigeySWales> and information is NEVER destroyed
[19:10] <m1x10> there is no space
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[19:11] <m1x10> its just some kind of energy we cant meausure
[19:11] <m1x10> "black matter"
[19:12] <m1x10> so he makes energy from "nothing"
[19:12] <m1x10> using magnets and tesla things
[19:12] <Dave-M0MYA> It hasn't yet been convincingly shown that we are surrounded by dark matter - thats just one way of perceiving it
[19:13] <m1x10> many frauds exists so I dont believe him at first
[19:13] Action: Dave-M0MYA cuts a slice of stollen - mmmmm
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[19:15] <SpeedEvil> I've pondered buying a device that gets energy from the vacuum.
[19:16] <Laurenceb> from jln-labs?
[19:16] <Laurenceb> or steorn
[19:16] <SpeedEvil> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260525315434
[19:19] <Dave-M0MYA> lol!
[19:20] <Laurenceb> yay miele
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[19:20] <Laurenceb> steorn have a development kit out now
[19:21] Action: Laurenceb gets back to rtty decoder...
[19:22] <Laurenceb> VVV$$AL@S,196,17:13'7#""7# 3637c#w37
[19:22] <fsphil> ooh was thinking about rtty decoding today
[19:22] <Laurenceb> ive got it working in octave
[19:22] <Laurenceb> with logger atlas data
[19:22] <Laurenceb> unfortunately my data is from when it was dissappearing over the horizon
[19:22] <Laurenceb> so noisey
[19:23] <Laurenceb> thing is the VVV on the front - i dont get where its from
[19:23] <Laurenceb> but its certainly real
[19:23] <fsphil> I've got some samples from old icarus flights if you want
[19:23] <Laurenceb> what format?
[19:23] <fsphil> flac
[19:23] <Laurenceb> ok, id have to convert to an array somehow
[19:23] <fsphil> I'll stick them up somewhere
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[19:24] <Laurenceb> ive got a "deep search" working - it searches for the header in frequency/time offset space
[19:24] <Laurenceb> then fires up a decoder
[19:24] <Laurenceb> bbl
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[19:55] <fsphil> Laurenceb, http://www.sanslogic.co.uk/hab/samples/
[19:55] <Laurenceb> thanks
[19:56] <fsphil> they drift a bit so I'm not sure how useful they'll be
[20:01] <Laurenceb> how many bits etc
[20:02] <fsphil> icarus is 50 baud, 8n1, 350hz shift
[20:03] <fsphil> alien is the same I think
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[20:04] <fsphil> ah, alien is 7n1
[20:04] <fsphil> but otherwise the same
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[20:33] <Laurenceb> too much data :P
[20:33] <fsphil> yep lol
[20:34] <Laurenceb> its very noisey - only some of its receivable
[20:34] <Laurenceb> $$icarus,168,13:16:13,52.197071,-0.156018,19927,41.11,328.8,-17.5,-28.4*429F
[20:34] <Laurenceb> is the best i got
[20:34] <Laurenceb> with fldigi
[20:34] <Laurenceb> i need to work out a way to find the data and grab it out of the wav
[20:35] <fsphil> there are sections with a good clean signal, could cut them out with audacity
[20:35] <Laurenceb> *i need to work out a way to find the offset within the wav file
[20:35] <Laurenceb> yes
[20:35] <Laurenceb> which file is best?
[20:36] <fsphil> there's a good bit in the second icarus file
[20:36] Action: Laurenceb is downloading alien - doh
[20:37] <Laurenceb> i think psk should be possible
[20:37] <Laurenceb> just been reading through the psk-500r code from fldigi 3,20
[20:37] <fsphil> not with the ntx2 though
[20:37] <Laurenceb> its very good, but its rather non standard
[20:37] <Laurenceb> yes - it should work with ntx2
[20:38] <fsphil> how would you shift its phase?
[20:38] <Laurenceb> using +ive and -ive pulses to shift the phase
[20:38] <Laurenceb> about 500us duration
[20:39] <Laurenceb> you dont have long term phase coherency, but what i didnt realise is that you dont anyway with HF propogation
[20:39] <Laurenceb> so the descriminator looks at phase angle shifts between consecutive bins
[20:39] <fsphil> yep
[20:39] <Laurenceb> that way it should work with ntx2
[20:40] <Laurenceb> before i thought it used a very tight pll - gps style
[20:40] <Laurenceb> but thats not the case at all
[20:41] <Laurenceb> it also seems to have a groovy aquisition routine, and the varocode enables it to do bitslicing at least as well as rtty, prob better
[20:42] <Laurenceb> and it has fec with soft decision
[20:42] <Laurenceb> pretty awesome, but completely undocumented
[20:42] <Laurenceb> its all been done by one guy
[20:42] <fsphil> typical
[20:45] <Laurenceb> http://www.pskmail.de/getServerList.php
[20:45] <Laurenceb> pskmail just uses fldigi + flarq as a black box
[20:46] <Laurenceb> no-one has documented psk-500r, it seems to be 500baud psk with the varicode and fec from mfsk, and a ton of interleaving
[20:46] <fsphil> is the varicode the same as normal psk and dominoex?
[20:47] <Laurenceb> no
[20:47] <Laurenceb> its mfsk varicode
[20:48] <Laurenceb> tb h im tempted to write my own decoder
[20:48] <Laurenceb> psk is a lot nicer to deal with
[20:48] <Laurenceb> and i could use standard python fec libraries
[20:48] <Laurenceb> then do a binary hab protocol
[20:49] <Laurenceb> guess i could email the developer and ask for his help porting the tx code to avr
[20:51] <fsphil> I've been looking at ways of pushing the image data through a psk mode
[20:51] <fsphil> I though I might be able to use varicode but it's probably easier just to replace it
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[21:01] <Elwell> uhm, you lot already probably know about http://eol.jsc.nasa.gov/ but I've just discovered it. http://eol.jsc.nasa.gov/scripts/sseop/photo.pl?mission=ISS025&roll=E&frame=9807
[21:03] <sgisgi> Evening all, out of curiosity have alot of you made use of Telit GM862 modules before?
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[21:07] <Dave-M0MYA> NigeySWales: I can't figure out how to PM on the web client - maybe you can set one up? =)
[21:07] <jonsowman> Dave-M0MYA: which client you using?
[21:08] <Dave-M0MYA> uuurm, the one linked off the ukas wiki
[21:08] <jonsowman> webchat.freenode.net ?
[21:08] <Dave-M0MYA> qwebirc
[21:08] <jonsowman> if so, click user's name and hit Query... or something
[21:08] <jonsowman> oh
[21:08] <jonsowman> ok
[21:08] <jonsowman> no idea, sorry
[21:08] <jonsowman> :P
[21:08] <jonsowman> (psstt. use irssi)
[21:08] <Dave-M0MYA> :D cheers jonsowman
[21:09] <jonsowman> chatzilla is quite good if you want to stick with a web client
[21:09] <jonsowman> if you use firefox
[21:09] <Dave-M0MYA> ah, good tip
[21:09] <Dave-M0MYA> I use Xchat on my machine, but this one is not mine =)
[21:09] <jonsowman> ah I see :)
[21:09] <Dave-M0MYA> its also running doze ;(
[21:09] <jonsowman> :o
[21:10] <sgisgi> xchat or mirc have always been the mosy user friendly IRC clients
[21:10] <Laurenceb> oh the second file is nice and clear
[21:10] <Laurenceb> thanks
[21:10] <sgisgi> *most
[21:10] <fsphil> np
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[21:25] <m1x10> Bye all !
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[21:26] <jonsowman> hi ejcweb
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[21:28] <ejcweb> hey jonsowman.
[21:30] <ejcweb> how did the trackatron work on saturday; i forgot to ask?
[21:32] <Randomskk> how or did it?
[21:33] <Randomskk> it kind of worked
[21:33] <Randomskk> the payload lost gps lock
[21:33] <Randomskk> so after that it kind of stopped working
[21:33] <jonsowman> yes
[21:33] <jonsowman> kinda useless after that point
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[21:39] <ejcweb> ok. and was there a problem with the hole in the bottom or something?
[21:40] <Randomskk> probably something like that, or too much helium, or wrong timing
[21:40] <jonsowman> might have overfilled slightly
[21:40] <Randomskk> also the gps seems to have become unset from nav mode, hence cut out at 12km
[21:41] <ejcweb> nav mode?
[21:41] <Randomskk> it was a ublox-5
[21:42] <Randomskk> they can be set to, basically 'aeroplane' or 'car'
[21:42] <Randomskk> it was 'car', where its internal dynamic model assumes it can't go above 12km
[21:42] <Randomskk> it should have been 'plane' where it isn't altitude limited
[21:42] <Randomskk> cars have different dynamics to aeroplanes so if it knows roughly which it is it can interpolate position data better
[21:43] <Randomskk> the code was meant to set it to plane mode, so we don't know why it appears to have broken
[21:43] <Randomskk> it may have actually just lost lock or something at a massively coincidental 12km
[21:44] <ejcweb> right.
[21:45] <fsphil> and re-acquired lock at an equally coincidental 12km :)
[21:45] <Randomskk> indeed
[21:45] <Randomskk> rather suspect
[21:45] <Laurenceb> hi all
[21:46] <Randomskk> yo
[21:46] Action: Laurenceb has rtty decoding in octave
[21:46] <Laurenceb> atm it only talks to my sdr, im just coding something to import wav
[21:47] <Laurenceb> going to try with icarus logs, as my atlas logs with the sdr where taken at 250km range, its rather noisey
[21:47] <Laurenceb> Randomskk: any idea why im seeing VVV$$ATLAS, at the start ? the VVV is definately real
[21:47] <Randomskk> it is possible he intentionally transmits Vs as a syncrhonisation signal
[21:47] <Laurenceb> yeah
[21:47] <Randomskk> synchronisation
[21:48] <Randomskk> to help people lock on to the signal
[21:48] <Laurenceb> they never appeared on fldigi
[21:48] <Randomskk> that would be silly if so, U is a better idea as it is 01010101
[21:48] <Randomskk> fldigi may have just been slow getting a lock
[21:48] <Laurenceb> or the afc, yes
[21:48] <Laurenceb> *squelch
[21:48] <Randomskk> true
[21:48] <Laurenceb> but i might give up on this idea
[21:49] <Laurenceb> as psk-500r looks very awesome
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[21:49] <Laurenceb> and after reading thorugh the decoder source it looks feasible with ntx2
[21:49] <Randomskk> psk with ntx2?
[21:49] <Laurenceb> yes
[21:50] <Randomskk> that would be super awesome
[21:50] <Laurenceb> 000000000000+10000000000000000000-10000 etc
[21:50] <Laurenceb> into the ntx2
[21:50] <Randomskk> what?
[21:50] <Laurenceb> to jump the phase forward/backwards
[21:50] <Randomskk> oh I see
[21:50] <Randomskk> does that work?
[21:50] <Laurenceb> not brilliantly
[21:51] <Laurenceb> previously i throught it would fail utterly
[21:51] <Laurenceb> but, the thing is propogation screws with the phase anyway
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[21:51] <Randomskk> well, true
[21:51] <Randomskk> the psk is generally super immune to everything I thought
[21:51] <Laurenceb> so the psk decoder looks at phase shifts
[21:51] <Randomskk> indeed
[21:52] <Laurenceb> it has a local complex osc and bit slicer
[21:53] <Laurenceb> then looks at the change in argument between bins, and passes that to a soft decision viterbi thingy
[21:53] <Randomskk> I see
[21:53] <Laurenceb> the argument is also low pass filtered and used to adjust the lo or something....
[21:53] <Laurenceb> its all obfusticated undocumented c++
[21:53] <Randomskk> :P
[21:54] <Laurenceb> seems psk-500/250/125r is the job for us
[21:54] <Laurenceb> its new in fldigi 3.20, but its basically undocumented and written by one guy from what i can gather
[21:54] <SpeedEvil> sounds sensible
[21:55] <Randomskk> totally. what's the r for?
[21:55] <Laurenceb> fec
[21:55] <Laurenceb> "robust"
[21:55] <Randomskk> oh cool
[21:55] <Randomskk> hah
[21:55] <Laurenceb> the origional psk robust mode switched to qpsk
[21:55] <Laurenceb> which is a bit harder to do with a ntx2
[21:55] <fsphil> how much error correction is there?
[21:56] <Laurenceb> but fldigi 3.2 has introduced double baud rate instead
[21:56] <Randomskk> fec is hard to do on an arduino kinda thing
[21:56] <Randomskk> but meh, stm32
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[21:56] <Laurenceb> ive done reed solomon on atmega168
[21:56] <fsphil> yea, RS is doable
[21:57] <fsphil> and at the sort of bitrates involved, even a lowly avr is more than fast enough
[21:57] <Laurenceb> the interleaver could be harder
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[21:57] <Laurenceb> mfsk64 runs fine on the 12mhz atmega168 on my radio module
[21:58] <Laurenceb> and thats basically psk-500r with half the bitrate
[21:58] <Laurenceb> as far as fec complexity goes
[21:58] <Laurenceb> varicode - fec - interleaving - modulation
[21:59] <Laurenceb> the thing that really annoys me is theres no documentation on the psk -<baud>r modes
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[22:03] <SpeedEvil> UTSL
[22:03] <SpeedEvil> But, yes.
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[22:09] <Laurenceb> seems to be the varicode and fec off mfsk with a bigger interleaver
[22:12] <Laurenceb> another nice feature - seems to have completely hands off tuning
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[22:13] <Laurenceb> apparently thats used in pskmail
[22:15] <fsphil> yea I like that multiple psk streams can be decoded simultaneously
[22:15] <fsphil> a few ntx2's together, easily double the datarate
[22:15] <Laurenceb> or just a cc1020/si4432
[22:15] <Laurenceb> as the tx
[22:15] <fsphil> not certified though
[22:17] <Laurenceb> shhhhh
[22:17] <fsphil> haha
[22:18] Action: Laurenceb has way to many projects
[22:19] <Laurenceb> dactyl board -> needs a receiver ->si4432 usb stick -> hmm need something hardcore -> cc1020 sdr -> needs a timebase -> dcf77 ... meanwhile cc1020 sdr needs more sensitivity so -> active ant
[22:20] <Laurenceb> meanwhile .... psk is awesome.... arggg
[22:20] <Laurenceb> think i need a team of minions
[22:20] <fsphil> indeed, that should always be the first project
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[22:21] <edmoore> DanielRichman: what form of devilry is this
[22:21] <jonsowman> :o
[22:21] <jonsowman> what's going on
[22:21] <edmoore> I ended (note, not detached, but ended) the screen session running irssi on nessie
[22:21] <edmoore> and yet eroomde is still here
[22:22] <jonsowman> it might take a while to timeout
[22:22] <edmoore> this was about 2 days ago
[22:22] <SpeedEvil> timeouts can take up to 2 mins
[22:22] <SpeedEvil> ah
[22:22] <edmoore> before i left for swe
[22:22] <jonsowman> oh right
[22:22] <edmoore> hang on i'm going to detach and try and diagnose
[22:22] <SpeedEvil> or version him
[22:22] <SpeedEvil> 22:00
[22:22] <SpeedEvil> (10:22:36 PM) eroomde: (notice) Received CTCP 'VERSION irssi v0.8.14' (to SpeedEvil) from eroomde
[22:22] <SpeedEvil> ending fail
[22:23] <jonsowman> ed: you've got two irssi sessions running
[22:24] <jonsowman> have you got two tabs in screen or something?
[22:24] <edmoore> i know but I can only see one running screen session - this one
[22:24] <edmoore> ergo
[22:24] <jonsowman> C-a w
[22:24] <SpeedEvil> screen -l
[22:24] <SpeedEvil> list running screen processes
[22:24] <edmoore> SpeedEvil: already done
[22:24] <edmoore> hence how i know there's only one
[22:25] <jonsowman> edmoore: do you have more than one tab open in the screen session?
[22:25] <jonsowman> C-a w lists them
[22:25] <DanielRichman> 22:21 < edmoore> and yet eroomde is still here
[22:25] <DanielRichman> what do you mean by this?
[22:25] <jonsowman> eroomde is still in this channel
[22:25] <jonsowman> as well as edmoore
[22:25] <edmoore> '/names | grep eroomde' would give you a hit
[22:25] <edmoore> is what i mean
[22:26] <DanielRichman> oh the spelling :X
[22:26] Action: DanielRichman is very tired
[22:26] <DanielRichman> one sec.
[22:26] <edmoore> jonsowman: how do i switch between tabs if they exist?
[22:26] <DanielRichman> C-a "
[22:26] <jonsowman> C-a <numbver>
[22:26] <edmoore> DanielRichman: one is the other backwards
[22:26] <edmoore> if they look the same to you, stop drinking now
[22:27] <jonsowman> so like, C-a 0 goes to tab0
[22:27] <SpeedEvil> ctrl-a-space switched to next tab
[22:27] <eroomde> ok you win
[22:27] <eroomde> how do I close a tab?
[22:27] <jonsowman> quit irssi on one tab, then C-a k to close tab
[22:28] juxta__ (juxta@ppp203-122-193-94.static.internode.on.net) joined #highaltitude.
[22:28] <SpeedEvil> ctrl-a-k to kill tab
[22:28] edmoore (~ed@nessie.habhub.org) left irc: Quit: Lost terminal
[22:28] <eroomde> ok
[22:28] <jonsowman> yay
[22:28] <eroomde> thanks
[22:28] <jonsowman> np
[22:28] <eroomde> well, sweden is nice
[22:28] <jonsowman> I was just about to ask
[22:28] <eroomde> just book my flights and hostel and stuff for visiting Tromso next week
[22:28] <eroomde> it's so far north!!
[22:29] <jonsowman> wow
[22:29] <jonsowman> yes
[22:29] <jonsowman> yes it is
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[22:30] <eroomde> hoping for some clear skies
[22:30] <eroomde> am off to stockholm for a couple of days tomorrow
[22:30] <jonsowman> very nice
[22:30] <eroomde> am in Uppsala right now which is very much like a swedish cambridge
[22:30] <jonsowman> haha
[22:30] <eroomde> same size, oldest and best ubiversity, river through the middle
[22:30] <eroomde> pretty buildings
[22:30] <stilldavid> that's where MySQL is HQ'd!
[22:31] <eroomde> in Uppsala?
[22:31] <stilldavid> it was a few years ago, anyway
[22:31] <eroomde> maybe I should troll them with a NoSQL t-shirt
[22:31] <jonsowman> :P
[22:31] <eroomde> first i need to find a NoSQL t-shirt
[22:31] <stilldavid> wikipedia says so, so I'll believe it
[22:31] <eroomde> well it's a nice place for them to be
[22:31] <eroomde> v pretty
[22:31] <eroomde> serios snow today too
[22:32] <stilldavid> I was there a few summers ago, would love to return for some winter
[22:32] <stilldavid> London/Paris on the 1st, though. One trip at a time :)
[22:35] <eroomde> stilldavid: will get you a beer in london if you want
[22:35] <eroomde> can either talk shop or not :)
[22:36] <stilldavid> would love to talk shop! especially if beer is involved...
[22:36] <stilldavid> only there from the 2nd-4th unfortunately... then in under the chunnel to paris for 5 days
[22:37] <eroomde> well, if you have a gap during the 2nd - 4th and fancy a drink, shout
[22:37] <stilldavid> for sure. I'm meeting a friend who'll be in a conference, so I've got no plans.
[22:38] <eroomde> cool
[22:39] <eroomde> where abouts are you staying?
[22:40] <stilldavid> hmm... let me check
[22:41] <stilldavid> Park Plaza County Hall London
[22:41] <stilldavid> 1 Addington Street
[22:41] <stilldavid> London SE1 7RY
[22:45] <eroomde> ah right by westminster bridge
[22:45] <eroomde> and the london eye
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[22:49] <eroomde> right am off
[22:51] junderwood (~John@adsl.jcu.me.uk) left irc: Quit: Leaving
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[22:54] <jonsowman> see you eroomde
[22:54] <jonsowman> hi juxta
[22:54] <juxta> morning jonsowman
[22:54] <jonsowman> recovered?
[22:54] <jonsowman> you, rather than the payload
[22:54] <juxta> heh
[22:54] <juxta> getting there
[22:54] <jonsowman> :)
[22:54] <juxta> not had much sleep, had to get up very early
[22:55] <jonsowman> ah dear
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[22:59] <juxta> okay, time to have some breakfast and maybe another nap now that everthing is under control for a few hours
[22:59] <jonsowman> hehe
[22:59] <jonsowman> see you
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[23:33] Nick change: SpeedEvil1 -> SpeedEvil
[23:34] <NigeySWales> yey thats 2 temp sensors coded up
[23:38] <fsphil> nice
[23:41] <NigeySWales> gonna try an LDR now.. nothings gone bang yet lol
[23:42] <fsphil> aah - not trying hard enough ;)
[23:42] <NigeySWales> lol did burn myself though, temp sensors get hot if you forget the resistor :|
[23:42] <LazyLeopard> Ouch!
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[23:44] LazyLeopard (~irc-clien@chocky.demon.co.uk) left irc: Quit: Bye
[23:44] <NigeySWales> yeah kinda hurt :(
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[23:50] <Laurenceb> ah no wonder its failing
[23:50] <Laurenceb> - non integer stopbits
[23:51] <Laurenceb> about 1.05 stopbits for icarus
[23:51] <SpeedEvil> Damn those pesky non-integer stop-bits!
[23:51] <Laurenceb> so stupid
[23:51] <fsphil> that'll be the code between the _delay_ms() functions
[23:51] <SpeedEvil> (in a Scooby Doo villan voice)
[23:51] <Laurenceb> i think theres a similar issue on atlas
[23:52] <fsphil> meddling code that is
[23:52] <Laurenceb> needs a dll to track the bit edges
[23:52] <Laurenceb> freq 4 time 3811 amplitude 35035330
[23:52] <Laurenceb> ans = $$icarus,266,13:45:02,52.2"fnfdXZ`\fb`jnbXfffjpXbj\brXdl`p@8M0]9A)Qe
[23:53] <Laurenceb> thats what im getting
[23:53] <fsphil> does fldigi do any better?
[23:53] <Laurenceb> ioh fldigi manages fine
[23:54] <Laurenceb> if i hack thestop bits to 1.05 it manages a bit better
[23:54] <fsphil> it's timing code is fairly crude -- it synchronises on every start bit
[23:54] <Laurenceb> suprised fldigi can track it
[23:54] <Laurenceb> guess it syncs off just the start bits
[23:54] <fsphil> indeed
[23:55] <Laurenceb> explains why it can screw up so easily
[23:55] <fsphil> it's also why the stop-bit setting makes no difference at all
[23:55] <Laurenceb> varicode is more sophisticated when it comes to this
[23:56] <Laurenceb> http://i.imgur.com/4bnSG.png
[23:56] <Laurenceb> the actual data is nice and clean
[23:56] <Laurenceb> just needs dll
[23:57] <fsphil> what's the graph of?
[23:58] <Laurenceb> discriminator output
[23:59] <Laurenceb> after its aquired a signal at a time/frequency offset
[23:59] <Laurenceb> http://i.imgur.com/P6b0g.png
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[23:59] <Laurenceb> thats the header finder output for one frequency bit
[23:59] <Laurenceb> *bin
[23:59] <Laurenceb> i told it to search of "$$icarus,"
[23:59] <Laurenceb> *for
[00:00] --- Tue Nov 16 2010