highaltitude.log.20121229

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[00:22] <arko> is there a good library of peoples hab science data?
[00:23] <arko> need pressure and external temp
[00:23] <arko> long, lat, alt
[00:23] <Lunar_Lander> hello arko
[00:23] <Lunar_Lander> I am afraid that is all like scattered around people's websites
[00:23] <arko> hey
[00:23] <arko> i thought so
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[00:24] <Lunar_Lander> :(
[00:24] <Lunar_Lander> yea
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[00:38] <fsphil> in theory it's all in habitat
[00:39] <fsphil> but getting it's the trick
[00:40] <Lunar_Lander> yea
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[00:58] <DanielRichman> arko: http://habitat.habhub.org/ept maybe. Doesn't have all historical data ever (planned) but should have flights since we swapped to the latest habitat database schema
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[01:53] <arko> DanielRichman: perfect!
[01:53] <arko> thanks
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[05:18] <arko> bah, irssi
[05:18] <arko> changed so much since i used it
[05:18] <arko> finally have irc on this linux vm
[05:18] <arko> \o/ beer time
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[05:30] <arko> DanielRichman: this data looks awesome
[05:31] <arko> have a some tools i wrote in matlab, gonna do some analysis :)
[05:31] <arko> whoever wrote this logger.. you rock
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[06:35] <arko> are the people who did XABEN here?
[06:39] <Darkside> that would be RocketBoy
[06:39] <Darkside> who isnt here atm
[06:40] <arko> cool
[06:40] <arko> man, these ascent rates are pretty damn linear
[06:51] <arko> ah!
[06:51] <arko> how interesting
[06:52] <arko> slow balloons aren't all too linear
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[07:33] <SP9UOB> hi all :-)
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[08:03] <Upu> morning SP9UOB
[08:03] <Upu> tracker all yours afk dog walk
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[08:17] <arko> http://i.imgur.com/WEKP3.png
[08:17] <arko> im tired
[08:17] <arko> all that data
[08:17] <arko> that's an interesting graph to see though
[08:17] <arko> morning Upu
[08:31] <Upu> morning
[08:31] <Upu> lot of data there :)
[08:32] <arko> i know right!?
[08:32] <arko> im so excited to have all this data :D
[08:32] <arko> i've been slaving away with excel manually putting it all together
[08:32] <griffonbot> Received email: Matthew Applegate "[UKHAS] Hello Everyone,"
[08:32] <arko> im sure i could script this, but im just crazy like that
[08:33] <Upu> try compare the ascent rate with altitude :)
[08:33] <arko> yep!
[08:33] <arko> doing a convariance
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[08:33] <arko> and classifing them
[08:33] <arko> you can tell they group up too
[08:33] <arko> different ascent rates
[08:33] <Upu> PAVA and QAVA were connected together btw :)
[08:34] <arko> what im trying to figure out is how the current model of the predictor and the data compare
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[08:34] <arko> then see what potential places could be improved upon
[08:34] <arko> im actually shocked by the ascent data
[08:34] <Upu> why shocked ?
[08:35] <arko> i was going to guess that it would have been non linear because i assumed the coefficent of drag changed enough that it would effect how the balloon rises
[08:35] <arko> pressure decreases, it gets more "draggy"
[08:36] <Upu> someone explained this to me once
[08:36] <daveake> Less air means less air resistance
[08:36] <arko> right
[08:37] <arko> meant to finish my sentencethere
[08:37] <daveake> Less air means larger balloon means more resistance
[08:37] <arko> so they cancel out some how
[08:37] <arko> and i mean
[08:37] <arko> "cancel"
[08:37] <daveake> For helium it all cancels out
[08:37] <arko> cool
[08:37] <arko> this data blew my mind :P
[08:37] <arko> sorry, it's the first time i've seen it
[08:37] <arko> new to this hab thing
[08:38] <daveake> For underfilled they start off slow as the envelope is floppy and unaerodynamic
[08:39] <daveake> For hydrogen the factors don't quite cancel and it accelerates as it gets higher
[08:39] <arko> wow
[08:39] <arko> interseting
[08:39] <arko> interesting*
[08:39] <arko> http://www.planetaryprobe.org/sessionfiles/session6a/posters/taresh_ascent_rate_poster.pdf
[08:39] <arko> so that was a cool read
[08:39] <arko> some handy formulas
[08:39] <daveake> That's my non-mathematical arm-waving explanation anyway
[08:40] <arko> fine with me
[08:40] <arko> good to know that your explanation agrees with the dat
[08:40] <arko> a
[08:41] <daveake> Coincidence :-)
[08:41] <arko> :P
[08:41] <arko> cant wait, almost done with the descent data
[08:42] <Upu> its good we have people like you on hand to analyse this data and produce scientific explainations so people like Dave and I can go "yep thats because" in an informed fashion further down the line
[08:42] <daveake> Lol
[08:42] <arko> :D
[08:42] <arko> this is an awesome channel on irc
[08:43] <arko> im sure others have taken everyones hab data and analyized it
[08:43] <arko> right?
[08:43] <arko> or at least their data?
[08:44] <Upu> not really
[08:44] <Upu> http://ukhas.org.uk/general:flight_data
[08:46] <arko> oh nice!
[08:46] <arko> thats a good table to know about
[08:46] <arko> plot over time help a lot though
[08:48] <SP9UOB> Upu: could You clean the map please ?
[08:48] <daveake> Well, the predictor assumes a straight line ascent, so if you aren't expecting one then you might want to look at the prediction curve and adjust
[08:48] <SP9UOB> polish HAMS rocks! :-)
[08:49] <SP9UOB> SP9UOB: thanks :-)
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[08:51] <arko> http://imgur.com/a/dFuSL
[08:51] <arko> there we go
[08:51] <arko> ascent and descent data
[08:52] <arko> daveake: yeah, i've been reviewing the code the last day
[08:52] <arko> i was like "alt += rate*dt"
[08:52] <arko> wait what!?
[08:52] <arko> turns out that's pretty accurate
[08:52] <arko> <-- mind blown
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[08:54] <arko> damn i love data
[08:54] <Darkside> arko: the 1600g hwoyee floater / altitude record launches will be the exception
[08:54] <Darkside> as the floppy balloon has more drag
[08:55] <daveake> For a h2 flight I look at the flight path and adjust a bit because the balloon will spend more time at lower altitudes and less at higher
[08:56] <daveake> And as Darkside says, the underfilled balloons start off slow
[08:57] <daveake> Say 2.8m/s when later it'll be 4.5
[08:58] <Upu> should be clear SP9UOB
[08:58] <arko> wow crazy
[08:58] <arko> good to know about that
[08:58] <arko> H2 kinda freaks me out
[08:58] <arko> so i dont do it
[08:58] <arko> :P
[09:02] <SP9UOB> Upu: is clear, thanks
[09:03] <arko> SP9UOB you flying right now?
[09:06] <Upu> whats the burst alt SP9UOB ?
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[09:07] <griffonbot> Received email: Costyn van Dongen "Re: [UKHAS] Hello Everyone,"
[09:09] <griffonbot> Received email: Costyn van Dongen "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
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[09:10] <SP9UOB> Upu: i dont know - hart to say - envelope is kaysam 100g
[09:10] <Upu> I'll put 15km in
[09:10] <SP9UOB> upu: i didnt found any data
[09:10] <SP9UOB> arko: at 10 utc
[09:10] <SP9UOB> Upu: we'll see :-)
[09:11] <Upu> ok prediction loaded have a good flight (all 10 mins of it :))
[09:11] <SP9UOB> hard to say
[09:11] <SP9UOB> payload is realtively light - 50g
[09:11] <arko> SP9UOB: excellent! good luck! i'll try to stay awake :P
[09:12] <SP9UOB> i try to archeive 1 m/s ascend rate
[09:13] <SP9UOB> anyway polish HAMS are awesome - so many listeners :-)
[09:14] <arko> are you using helium?
[09:14] <SP9UOB> arko: yes
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[09:15] <SP9UOB> hi radim
[09:15] <arko> sweet, i can add this flight to the dataset
[09:16] <radim_OM2AMR> hi tomek, I'm preparing OM RX side :-)
[09:16] <SP9UOB> radim_OM2AMR: thanks, predictor says - it will land in OM :-)
[09:16] <SP9UOB> http://habhub.org/predict/#!/uuid=5e014d26c076d034dfe5dade4fed0ee792614252
[09:16] <arko> I can set mine up too :P incase you go transpacific
[09:16] <radim_OM2AMR> ohh great
[09:16] <SP9UOB> arko: my last flight was received in Canada :-)
[09:17] <SP9UOB> but it was 28 MHz
[09:17] <arko> nice!
[09:17] <arko> are you going to try to recover this one?
[09:17] <SP9UOB> arko: no
[09:18] <radim_OM2AMR> hmm, I'm thinking about it :-)
[09:18] <SP9UOB> radim_OM2AMR: tracker will work for about 18 hours
[09:19] <radim_OM2AMR> I will ask my ham friends if they will make a trip :-)
[09:20] <SP9UOB> radim_OM2AMR: :-)))
[09:20] <radim_OM2AMR> it's few km's from STS-1 landing, there are mountains
[09:20] <SP9UOB> the balloon is very old - so im not sure when it burst
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[09:21] <radim_OM2AMR> Tomek, estimated start is at 11;)) ?
[09:22] <radim_OM2AMR> 11:00 ?
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[09:23] <SP9UOB> radim_OM2AMR: yes
[09:23] <SP9UOB> im going to the launch site now
[09:23] Action: SP9UOB is gone. launching
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[09:37] <griffonbot> Received email: Trevor Cousins "Re: [UKHAS] habhun/predict results dependent on lat lon deltas?"
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[09:52] <arko> i should sleep :/
[09:53] <Upu> time is it over there ?
[09:53] <arko> 2am
[09:53] <Upu> you're correct you should
[09:54] <arko> i think i might stay awake to watch SP9UOB launch
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[09:54] <arko> heh
[09:54] <arko> does spacenear.us work with aprs?
[09:54] <arko> i think i've asked before
[09:54] <arko> in the "states"
[09:55] <Upu> it does if we run a script to import yes
[09:55] <arko> oh neat
[09:56] <arko> where does it get the data? does it have to follow the format? or does it just look for a call sign?
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[09:56] <arko> the format being the standard packet everyone uses for RTTY
[09:56] <Upu> imports from APRS.fi
[09:56] <arko> oh sweet
[09:57] <arko> i would like to do that for my hab when the time comes around :P
[09:57] <arko> that predictor that works with it would be nice
[09:57] <arko> real time adjustments
[09:57] <arko> etc
[09:57] <griffonbot> Received email: Trevor Cousins "[UKHAS] Re: Hello Everyone,"
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[10:00] <sq5nwi> SP9UOB - wszystko zgodnie z planem?
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[10:02] <griffonbot> Received email: Allen Sklar "RE: [UKHAS] Hello Everyone,"
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[10:04] <arko> sleep time
[10:04] <Upu> night
[10:04] <arko> night!
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[10:34] <SQ5NWI> SP9UOB - start opozniony?
[10:36] <number10> SQ5NWI: he set off for launch site about 1 hour ago
[10:36] <x-f> hmm.. SP9UOB is getting uploaded by a few listeners, counter is already at 80, but the string is very short
[10:37] <SP9UOB> is up, but we lost gps fix - propably gps antenna problem
[10:37] <x-f> oh :(
[10:39] <radim_OM2AMR> :-(
[10:40] <SP9UOB> signal is strong here
[10:40] <SP9UOB> gps is transmitting data but even not getting gps time
[10:41] <SP9UOB> its old lassen Trimble receiver
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[10:45] <radim_OM2AMR> tomek, qrg ?
[10:45] <SP9UOB> GOT FIX !!!!
[10:45] <SP9UOB> 437.598
[10:46] <radim_OM2AMR> great !
[10:46] <SP9UOB> 2d only by now
[10:47] <SP9UOB> ok 3d
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[10:52] <x-f> cool!
[10:52] <x-f> now that's a slow ascent rate
[10:53] <SP9UOB> 5 mW output power :-)
[10:53] <SP9UOB> x-f: gps has some problems, its often loosing fix
[10:54] <x-f> ah, well that could explain it
[10:55] <radim_OM2AMR> TOmek - OM1ATS is receiving and decoding
[10:55] <x-f> at least it is reporting its position!
[10:55] <SP9UOB> radim_OM2AMR: cool, say thanks to him :-)
[10:57] <SP9UOB> radim_OM2AMR: its heading to Slovakia :-)
[10:57] <radim_OM2AMR> cool, we are prepared :-)
[10:58] <jcoxon> shame about the gps, i'm intrigued about hte actual asccent rate
[10:59] <SP9UOB> jcoxon: old lassen trimble - also propably with antenna problem
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[10:59] <jcoxon> yeah, they don't tolerate bad antennas unlike the new ones
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[11:01] <x-f> how do you mobilise so many raioamateurs?
[11:01] <SP9UOB> x-f: i just said - polish HAMS are awesome :-)
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[11:03] <jcoxon> SP9UOB, have you persuaded them to upgrade to the new DL3.1
[11:03] <SP9UOB> jcoxon: yes
[11:04] <jcoxon> cool
[11:04] <jcoxon> we should translate the wiki guides
[11:04] <jcoxon> to make things easier
[11:04] <SP6RYD> SP9OUB: rx some signal no decode yet :-)
[11:04] <x-f> SP9UOB, i could use some help from the ones on the southern Poland when the time comes :)
[11:05] <SP9UOB> x-f: no problem at all
[11:05] <x-f> err.. northern*
[11:05] <SP9UOB> no fix again :-(
[11:05] <SP9UOB> some serious gps antenna problem
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[11:09] <SP6RYD> the best frame "ÿí&SP¹ÓOB,5,±±:022,00¬ñG [P;.72,=0960601952."
[11:11] <om1ats> really strong signal for 5mW
[11:11] <craag> Is it meant to float?
[11:12] <radim_OM2AMR> heh, om1ats, welcome here :-)
[11:13] <SP9UOB> craag: because of gps problems altitude is not very accurate
[11:13] <jcoxon> come on GPS!
[11:13] <SP9UOB> om1ats: hi
[11:14] <craag> Ok, there's been several different fixes right around 6200m though.
[11:18] <jcoxon> it could be floating i guess
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[11:18] <Upu> bit flat to be believed :)
[11:18] <SP9UOB> jcoxon: maybe some ice
[11:19] <jcoxon> need better data though
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[11:20] <SP6RYD> fight for the one frame :-) "Z9UOB,273,11:1:07,0,0r*67B7"
[11:22] <jcoxon> time...
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[11:24] Action: jcoxon is watching logtail
[11:25] <SP9UOB> no fix :-(
[11:25] Action: SpeedEvil is watching HALO.
[11:25] <SP9UOB> its getting colder - frequency is dropping
[11:26] <SpeedEvil> the freshly cut chips rotating under a halogen light edition
[11:26] <SP9UOB> so im think is still ascending
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[11:26] <radim_OM2AMR> wake up gps please :-)
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[11:27] <SP9UOB> radim_OM2AMR: are You receiving something?
[11:27] <radim_OM2AMR> Yes, tomek, but without fix
[11:27] <Upu> so just getting 2D fix ?
[11:27] <jcoxon> not even 2d
[11:27] <SP9UOB> Upu: no fix at all
[11:28] <Upu> position seems to be updating ?
[11:28] <jcoxon> 4 mins since even time update
[11:28] <Upu> oh yeah
[11:28] <Upu> time duh
[11:29] <SP9UOB> maybe it is over 18 km limit ?
[11:30] <jcoxon> lassens don't usually have that limit
[11:31] <SP6RYD> now is on 437.596
[11:32] <radim_OM2AMR> .595 freq is falling rapidly
[11:32] <SP9UOB> radim_OM2AMR: its getting colder and colder
[11:32] <SP9UOB> i have S5 here
[11:32] <radim_OM2AMR> yes, is it that egg like payload ?
[11:33] <SP9UOB> radim_OM2AMR: yes: http://sp9uob.verox.pl/balon/sputnik3.jpg
[11:34] <SP9UOB> so im think is still ascending
[11:37] <SQ5NWI> Tomek, signal is strong, but no decoded packets. Any sugestions for application config or so?
[11:37] <jcoxon> SP9UOB, http://bear.sbszoo.com/construction/gps/LP/LP_GPS.htm
[11:37] <jcoxon> no limit
[11:38] <SP9UOB> SQ5NWI: have You upgraded to new version ?
[11:38] <SP9UOB> jcoxon: so, antenna problem
[11:38] <SP9UOB> SQ5NWI: dl-fldigi ?
[11:38] <SP9UOB> jcoxon: i have IQ version no LP
[11:39] <jcoxon> oh even better
[11:39] <SP9UOB> SQ5NWI: http://ukhas.org.uk/projects:dl-fldigi
[11:39] <jcoxon> that definitly works above 18
[11:40] <SP9UOB> i suspecting antenna or connector
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[11:43] <SQ5NWI> Yes, advised by you yesterday.
[11:43] <radim_OM2AMR> freq drift is lowing down, probably tropopause
[11:44] <SP9UOB> then choose sp9uob-3 from flight list
[11:44] <radim_OM2AMR> *slowing
[11:44] <SQ5NWI> Finaly, we have decoded one and few uncomplete due to frequency floating...
[11:44] <SP9UOB> and click auto-configure
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[11:44] <SP9UOB> radim_OM2AMR: right
[11:45] <SP9UOB> transmitter works great but GPS uh...
[11:46] <radim_OM2AMR> we'll see, maybe...
[11:46] <moriarty> so much for purchasing a cheap GPS from Tesco
[11:46] <SP9UOB> radim_OM2AMR: maybe it recover fix after burst
[11:47] <SP9UOB> moriarty: better, it was free ;-)
[11:47] <moriarty> haha :)
[11:47] <moriarty> lucky
[11:47] <moriarty> which university sponsored this project?
[11:47] <radim_OM2AMR> yes, little shaking with the egg :-)
[11:47] <SP9UOB> moriarty: none
[11:47] <moriarty> ah self-financed
[11:47] <moriarty> :) speaking of eggs, i'm famished
[11:48] <SP9UOB> and im hungry - brb
[11:50] <SQ5NWI> Tomek, now its stable and clear signal. Unfortunately without position data :-(
[11:50] <SP9UOB> its reachet tropopause im think, soon frequency should start incerasing
[11:51] <SP9UOB> reached
[11:51] <SP6RYD> what is the reason of chnges of freguency so much ? temperature, dropping voltge ?
[11:51] <radim_OM2AMR> temperature
[11:51] <SP9UOB> SP6RYD: temperature. Voltage is stabilised by step-up converter
[11:54] <SP6RYD> now is on 437593.5 stable
[11:57] <SP6RYD> so uC, GPS and TX are on 3.3V ? nice
[11:57] <SP9UOB> yes
[12:01] <radim_OM2AMR> burst ? freq is going down slightly
[12:04] <radim_OM2AMR> now its stable again
[12:12] <SP9UOB> dear GPS, do not bring me shame
[12:12] <SP9UOB> PLEASE
[12:12] <SP9UOB> :-)
[12:12] <moriarty> SHAME
[12:12] <moriarty> :)
[12:15] <SP6RYD> carrier shift 380 !!
[12:15] <SP9UOB> radim_OM2AMR: what signal strength are You Receiving?
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[12:18] <radim_OM2AMR> hard to say, my FT897 shows nothing on S-meter, but I have wrong vertical antenna, for 400 MHz only :-( our best receiver is Dano OM1ATS
[12:18] <SP9UOB> radim_OM2AMR: i have also no readings but signal is stable
[12:19] <radim_OM2AMR> same here, now freq starts drifting down again
[12:19] <SP9UOB> and freq is going down
[12:19] <SP9UOB> on its way down ?
[12:19] <om1ats> Now is signal S1-3
[12:19] <radim_OM2AMR> probably, gps please !
[12:20] Action: moriarty chuckles
[12:20] <SP9UOB> om1ats: do You have directional antenna
[12:21] <radim_OM2AMR> Tomek, is there parachute also ?
[12:22] <SP9UOB> radim_OM2AMR: no
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[12:22] <SP6RYD> maby i have no calibrated soundcard but first succesful decode was just after changing the shift from 425 to 380 Hz :-)
[12:23] <radim_OM2AMR> SP6RYD, the shift is smaller now
[12:24] <SP9UOB> radim_OM2AMR: capacitor got cold ;-)
[12:24] <radim_OM2AMR> :-) but it's no problem, I have wider filter bandwidth set, Op MOde, RTTY Custom ->
[12:25] <SP9UOB> its flying well - 100g kaysam
[12:25] <radim_OM2AMR> signal is getting stronger, S1 time to time
[12:26] <radim_OM2AMR> Tomek, are you using Hydrogen from your restroom ? :-D
[12:26] <SP9UOB> radim_OM2AMR: its close to You noe :-)
[12:27] <SP9UOB> radim_OM2AMR: this time it was helium :-)
[12:27] <radim_OM2AMR> ooh, luxury gas :-)
[12:27] <SP9UOB> signal is fading now
[12:29] <SP9UOB> one fix please.. just one
[12:30] <om1ats> No is signal stronger S6-8
[12:31] <SP9UOB> om1ats: do You have directional antenna?
[12:32] <radim_OM2AMR> TOmek, OM1ATS has vertical, but he will try yagi outside also
[12:32] <om1ats> No I use now only collinear X-621N
[12:33] <om1ats> but i have more yagis for 70cm :)
[12:33] <SP9UOB> om1ats: could You measure azimuth ?
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[12:34] <SP9UOB> it must be over Your head :-)
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[12:34] <radim_OM2AMR> now freq falling rapidly
[12:35] <radim_OM2AMR> 589 and falling down
[12:35] <SP9UOB> i have srtonger signal now
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[12:55] <SQ5NWI> Do you still receive it? I left TRX for a while and now there is nothing...
[12:55] <om1ats> now i have azimuth cca 30° but GPS is still out
[12:56] <radim_OM2AMR> sq5nwi .594
[12:56] <om1ats> last time 11:23:02 :(
[12:56] <SP9UOB> pity :-(
[12:57] <SP9UOB> 9A1Z 437589.0 SP9UOB hrd in JN86fj RTTY 50 1247 29 Dec Poland
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[12:58] <SP9UOB> om1ats: thank You.
[13:01] <SP9UOB> 3 hours airborne
[13:04] <om1ats> Tomek I have question if temp goes down freq goes up ?
[13:04] <SP9UOB> om1ats: no, temp down = freq down (as i tested)
[13:05] <om1ats> ok thx
[13:07] <radim_OM2AMR> the end for me, finished :-(
[13:08] <fsphil> did you have contact details on it?
[13:08] <SP9UOB> radim_OM2AMR: im still receiving
[13:08] <SP9UOB> fsphil: sure
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[13:09] <SP9UOB> radim_OM2AMR: 9A1Z is still receiving in Croatia
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[13:10] <radim_OM2AMR> I have not a good location for south now
[13:10] <SP9UOB> om1ats: what signal strength ?
[13:10] <chrisg7ogx> just playing and listening for the polish balloon ever optimistic
[13:11] <SP9UOB> i think is descending now
[13:11] <om1ats> now S1-3
[13:12] <SP9UOB> im not receiwing now
[13:12] <om1ats> but f is stable
[13:12] <radim_OM2AMR> I think it will land soon
[13:12] <om1ats> 437.598
[13:13] <SP9UOB> om1ats: i have barely visible traces
[13:13] <om1ats> YESSSSS i have position !!!
[13:13] <om1ats> $SP8OB,840,13:13:04,4858.4051,01923.6093,6207*E6BA
[13:14] <radim_OM2AMR> wtf :-)
[13:14] <fsphil> bah, gps style coordinates :p
[13:14] <fsphil> that's weird
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[13:14] <om1ats> last packet :(
[13:14] <chrisg7ogx> tks fer freq
[13:16] <fsphil> those coordinates translate to @ 48.9734183, 19.3934883
[13:16] <fsphil> slovakia
[13:17] <SP9UOB> http://goo.gl/maps/7qq2S
[13:18] <fsphil> drat, was hoping I was wrong
[13:18] <fsphil> that's a lot of trees
[13:19] <SP9UOB> tracker will continue to work for about 15 hours
[13:19] <fsphil> are you chasing?
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[13:20] <SP9UOB> fsphil: im thinking abouut it :-)
[13:20] <radim_OM2AMR> fsphil, we're thinking, but it's forrest
[13:20] <radim_OM2AMR> I was born/live in Ruzomberok, city nordwest from it
[13:21] <chrisg7ogx> looks like managed forrest, the lofty pine?
[13:21] <SP9UOB> radim_OM2AMR: if You get it its Yours :-)
[13:21] <radim_OM2AMR> :-)
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[13:23] <SQ5NWI> Tomek, are these uploaded packets available somwhere for us?
[13:23] <SP9UOB> SQ5NWI: http://habitat.habhub.org/ept/
[13:24] <cuddykid> it looks like a tough recovery
[13:25] <cuddykid> photo of the area: https://ssl.panoramio.com/photo/59028543#comment
[13:25] <SP9UOB> cuddykid: i was not plan to recover but - im curios about GPS
[13:26] <cuddykid> yeah, very odd
[13:26] <radim_OM2AMR> Tomek, will you go there ?
[13:26] <SP9UOB> radim_OM2AMR: im thinking. When i arrive - it be propably dark
[13:26] <om1ats> Screenshot of last decoded packet http://img197.imageshack.us/img197/2994/sp9uob.jpg
[13:27] <SP9UOB> ita about 1 hout ro sunset
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[13:27] <SP9UOB> *its about 1 hour to sunset
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[13:28] <kraken> 6207 is altiude in meters?
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[13:28] <radim_OM2AMR> yes, for that road you will need wheel chains
[13:28] <SP9UOB> kraken: its wrong for sure
[13:28] <SP9UOB> radim_OM2AMR: i dont have any :-(
[13:28] <radim_OM2AMR> me too :-(
[13:29] <om1ats> altitude is fake ! real altitude for this last position is cca 2000m
[13:30] <SP9UOB> radim_OM2AMR: is there any HAMS in Liptowsky mikulas?
[13:30] <SP9UOB> maybe them could still receive
[13:30] <radim_OM2AMR> yes, sure, also in Ruzomberok, but I don't have any contact for them :-(
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[13:31] <radim_OM2AMR> there was also one CB operator in Zelezno village, near the last position
[13:36] Nick change: M0JSN -> jonsowman
[13:37] <SP9UOB> That was really strange behavior
[13:39] <radim_OM2AMR> tomek which color is a baloon ? :-)
[13:41] <SP9UOB> radim_OM2AMR: creany
[13:41] <SP9UOB> creamy
[13:41] <SP9UOB> ball is white
[13:42] <SP9UOB> wait, i have to download photos
[13:42] <radim_OM2AMR> oh yes, I though red balloon, or it's rest
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[13:50] <SP9UOB> radim_OM2AMR: http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_0004.JPG
[13:50] <SP9UOB> http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_0005.JPG
[13:51] <SP9UOB> http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_9976.JPG
[13:52] <SP9UOB> http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_9997.JPG
[13:52] <radim_OM2AMR> yes, thanks, I think it was the red one
[13:52] <SP9UOB> red ones was 30grams
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[14:00] <chrisg7ogx> thanks for pix very good
[14:13] <chrisg7ogx> pix give the newbies an idea of what it is all about and I now have to hanm friends who are now curious which is good
[14:15] <chrisg7ogx> two ham friends
[14:15] <SP9UOB> chrisg7ogx: http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_0009.JPG
[14:16] <SP9UOB> chrisg7ogx: http://sp9uob.verox.pl/balon/SP9UOB-3/IMG_9962.JPG
[14:18] <chrisg7ogx> hey thanks Tomasz,
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[14:19] <radim_OM2AMR> SP9UOB, I have message from my dad, that way is currently good, there is no snow on it
[14:19] <radim_OM2AMR> And that guy from Zelezne is not there, he moved.
[14:20] <SP9UOB> chrisg7ogx: there are more images start from IMG_9955.JPG and then wrap to IMG_0001.JPG to 0017
[14:21] <SP9UOB> radim_OM2AMR: i try tommorow. Maybe You coud ask OM hams on repeater near landing place :-)
[14:21] <SP9UOB> if they can receive exact position
[14:22] <radim_OM2AMR> I'll try. When do you plan to be there ?
[14:22] <SP9UOB> tommorow morning i think, but batteries will be dead
[14:23] <SP9UOB> im just curious about gps fail
[14:23] <SP9UOB> so if someone could rx current position will be great
[14:23] <radim_OM2AMR> working on it
[14:24] <SP9UOB> radim_OM2AMR: thank You
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[14:39] <SP9UOB> radim: from aprs.fi: OM6RU-1 and OM3KHE-2 are close
[14:40] <radim_OM2AMR> They are in Zilina, is about 60 minutes to Ruzomberok
[14:41] <radim_OM2AMR> anyway, we will go now, we'll try to decode last position at least
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[15:16] <Navrac_Play> I like domino again today :-)
[15:18] <sanity93> Can we discuss multicopters or KK2.0 here?
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[15:19] <Navrac_Play> well you can discuss it if you like, but since this is high altitude , it is likely that not many people will be interested/ comment
[15:22] <sanity93> Ok, first I am talking 2.5km up.
[15:22] <sanity93> What precautions are there for such a climb?
[15:23] <sanity93> Do you need atc clearance?
[15:25] <fsphil> depends where you live
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[15:26] <sanity93> Ok, I started off high on last test flight, about 650m elevation.
[15:27] <sanity93> Took it up maybe 150m.
[15:31] <Navrac_Play> hi fsphil - Yesterday I forgot to put the varicap into its linear range - once I'd shifted the voltage the stability was a lot better
[15:31] <fsphil> ah ha
[15:31] <Navrac_Play> next payload is going to be rtty and domino for safety though
[15:31] <fsphil> I sortof understand that
[15:32] <fsphil> you could do sstv with that setup
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[15:32] <Navrac_Play> well whilst the top and bottom tones were aligned, some in the middle were a bit off
[15:34] <Navrac_Play> if i write an article on the wiki and credit you - can I use your code in the example?
[15:35] <fsphil> of course
[15:35] <Navrac_Play> now just to remember my wiki password
[15:35] <fsphil> aah yes, been there a few times
[15:35] <radim_OM2AMR> sp9uob - om2amr chase, I wait for friend and we'll go for night chase :-)
[15:36] <fsphil> have you writen code to read the rfm22's temperature sensor Navrac_Play?
[15:37] <sanity93> ok this is similar to what I am doing.
[15:37] <sanity93> you guys use the avrs and atmel studio yes? do the i2c stuff?
[15:37] <fsphil> avr's are pretty popular although a few still use PICs :)
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[15:38] <fsphil> I don't really use an IDE, just vim, Makefile, avr-gcc and avrdude
[15:39] <sanity93> I am working on one project for overlay on pal display, from sensors off of flight control board. I need to just send them over to another board like a leostick powered off the bec circuits from the esc.
[15:39] <fsphil> I've been tempted to get an overlay board but really can't justify it :)
[15:39] <sanity93> PAL overlay looks very easy to implement I think there is a lot of good avr source.
[15:40] <fsphil> I've got some crystals for doing PAL signal timing from an avr -- not got around to doing it yet
[15:40] <sanity93> just needs a resister or two to read the sync pulse. The avr can handle all the video function including scanline timing.
[15:41] <sanity93> does not handle PAL colour clock though. so just monochrome overlay.
[15:41] <fsphil> yea the colour is pretty high frequency
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[15:44] <Going> Hello folks, anyone in here?
[15:44] <fsphil> there's a few floating around, if you pardon the pun
[15:44] <Going> Outstanding.
[15:45] <Navrac_Play> fsphil - sorry was wiki writing - yes I've used the rfm's temp sensor
[15:45] <fsphil> Navrac_Play: have you had any problems with it? it's not behaving for me
[15:46] <Navrac_Play> it's the die temp - so it wanders all over the shop depending on whether its txing or not
[15:46] <fsphil> I'm getting -64 a lot :)
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[15:47] <fsphil> the adcdone flag sometimes never goes back to 0
[15:47] <Navrac_Play> never seen that
[15:47] <Going> Well lets get this over with then. I'm planning a launch, my very first in fact. I'm planning to launch from Ireland an i am wondering if any of you guys have done this or have talked to anyone who has. The IAA are not making it easy for my launch plans, saying that their is an indefinite embargo on this sort of thing but i know balloon have been launched by chaps like myself and was thinking you might be able to point me in the
[15:48] <Going> way around the red tape
[15:48] <fsphil> the IAA seem to tell different people different things
[15:49] <fsphil> I got told what you just said
[15:49] <fsphil> where abouts are you Going?
[15:50] <Navrac_Play> http://pastebin.com/LCi2pfme
[15:50] <fsphil> you might have better luck with the CAA and launch from NI
[15:50] <Navrac_Play> thats the rfm reading code i use
[15:50] <Going> Dublin at the moment. I was planning to launch from the midlands but now it looks like i might have to persuade MET eireann to let me launch from their sounding balloon facility at massive expense.
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[15:51] <Going> The north, now that is an interesting thought
[15:51] <fsphil> if you do I can give you a hand
[15:51] <fsphil> I'm in Cookstown, right in the middle
[15:51] <fsphil> thanks Navrac_Play
[15:51] <fsphil> that looks pretty similar to what I have
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[15:52] <Going> That would be great. I will have to inform the other team members before deciding to go north but this may save me allot of money and allow allot more flexibility.
[15:53] <fsphil> the CAA have their own set of problems, you'll need to give them at least 28 days notice -- and even that is optimistic
[15:53] <fsphil> my summer launch is probably going up on the 1st Jan 2013 :)
[15:55] <bbjunkie> just phone them and tell them it's going up
[15:55] <bbjunkie> if they dont like it tough
[15:55] <bbjunkie> :)
[15:55] <Going> That sounds splendid. This is my first time in this IRC so I'm not sure how to make it work yet :P This wiki is a bit of a godsend to be honest.
[15:56] <fsphil> yea I lived in that wiki during preperations for my first launch
[15:57] <fsphil> my launch window begun today, and so far no calls from pilots
[15:57] <Going> I would love to just launch but i have plans to put a piece of scientific equipment on board one of the later flights and make the data public so i want it all to be legit.
[15:57] <fsphil> bbjunkie: there's a notam for just south of you
[15:57] <fsphil> MET BALLOON RELEASE FM 5431N 00603W (LISBURN)
[15:59] <fsphil> yea it's always good to do things by the book, even if it can be a challange at times
[15:59] <Going> The red tape seems to be more of a challenge than designing a cosmic ray detector.
[15:59] <fsphil> it is a shame the IAA are still being a pain
[16:00] <fsphil> launching in Donegal would be ideal for me due to the limited land area
[16:00] <Going> I guess that is what happens when private firms run airspace
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[16:01] <fsphil> does your team have a website?
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[16:02] <Going> Not yet, i have 3 top class programmers who are all on holiday at the moment. The plan has been in my head for a year but deadline have only recently been set.
[16:03] <prawnsalad> hey guys. ive been building a beacon following the steps at http://ukhas.org.uk/guides:linkingarduinotontx2, but having difficulty on the decoding side of things
[16:03] <fsphil> try to leave yourself time for bad weather Going
[16:04] <prawnsalad> it seems to be decoding around 40% of messages sent correctly, the rest corrupted. im unsure how to even go about debugging this?
[16:04] <Going> I'm expecting this to run like any other space mission - Massively over budget and 6 months late.
[16:04] <fsphil> is the corruption the same each time prawnsalad?
[16:05] <fsphil> Going: hah, yea that sounds about right :)
[16:05] <prawnsalad> fsphil: nope. mostly different. example: http://pastebin.com/C4JMBnJa
[16:05] <fsphil> especially with the increasingly scary price of helium
[16:05] <fsphil> does it work at 50 baud?
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[16:05] <prawnsalad> it was running at 50baud the other day which was worse. changing to 300 baud improved
[16:05] <cuddykid> prawnsalad: is that a dump from fldigi?
[16:06] <prawnsalad> cuddykid: yes
[16:06] <cuddykid> prawnsalad: do you see 2 clearly defined lines on the waterfall (ie. not much noise) ? Might be a weakish signal
[16:07] <fsphil> the errors are mostly at the beginning of each line
[16:08] <Going> I take it i can find you guys lurking on this IRC fairly often?
[16:09] <fsphil> there's usually someone around
[16:09] <fsphil> although if you wanna email me to arrange a launch here I can PM you my addy
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[16:10] <fsphil> worse at 50 baud could mean the shift is not set correctly
[16:11] <prawnsalad> cuddykid: im not really sure whats classed as a clearly defined, but heres a screencap: http://i.imgur.com/atnfS.png
[16:11] <prawnsalad> one of the lines are broken up, but always has been whenever ive tried this?
[16:12] <prawnsalad> there is a delay of 2seconds between sedning the messages so ive presumed its just that
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[16:12] <fsphil> it does looks a bit unusual
[16:12] <Going> Please do. I won't bother you until i have more solid plans down but yes, your email would be most helpful
[16:13] <cuddykid> prawnsalad: see where it says "FM" - select "USB" instead - might help
[16:13] <fsphil> during the 2 second delay, you should have a solid carrier on the right
[16:13] <cuddykid> yeah, it does look a bit odd
[16:13] <cuddykid> actually, I don't think switching FM to USB will do anything as it's radio controls I think
[16:14] <prawnsalad> yea it doesnt make any difference
[16:14] <fsphil> what is your receiver prawnsalad?
[16:14] <prawnsalad> its actualyl become a lot clearer over the past few minutes though.. id say around 90% correct messages
[16:14] <prawnsalad> fsphil: AR8000
[16:15] <cuddykid> I think the problem lies at the receiving end - not that that is a big help
[16:15] <bbjunkie> fsphil - interesting.. wonder who's launching that
[16:15] <fsphil> not sure, it's been there a while now and I've been very tempted to phone the number :)
[16:15] <bbjunkie> hehe
[16:15] <fsphil> "Hello, I'm the balloon inspector. I need to inspect your balloons"
[16:16] <prawnsalad> issue wth the radio you think?
[16:17] <prawnsalad> im not experienced at all with radios, but id got this one as many sources said it was a decent receiver :(
[16:17] <fsphil> can you try 50 baud again?
[16:17] <sanity93> Just have a listen to the channel. looks like line noise.
[16:17] <bbjunkie> fsphil - those coordinates are in Castlewellan if Google is right... I know a ham guy down there who could very well be messing with Balloons
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[16:17] <fsphil> oooh
[16:18] <bbjunkie> Russell Mi0CGV he gets up to all sorts of ham stuff, wind turbines too
[16:19] <fsphil> I hope they know about the predictor whoever it is
[16:19] <bbjunkie> can you pm me the full NOTAM
[16:20] <fsphil> http://notaminfo.com/explain?id=102523/0
[16:20] <prawnsalad> hmm, dl-fldigi is so dodgy on osx. cant resize the window
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[16:20] <fsphil> that's a feature prawnsalad :)
[16:21] <prawnsalad> ah, of course :)
[16:21] <fsphil> must see if that can be fixed in a future version
[16:22] <prawnsalad> are you the dev?
[16:22] <fsphil> only on a few small bits
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[16:24] <bbjunkie> fsphil - those coordinates I entered were in decimal format, not degs/min turns out the location is at Wallace High School
[16:24] <bbjunkie> right in the centre of Lisburn
[16:24] <fsphil> a school launch, that makes sense
[16:25] <bbjunkie> fsphil - how about speaking to your contact in the BBC to see if they know anything
[16:25] <prawnsalad> itseems to be that after a short while, the transmitter settles down and the decoding becomes almost consistant. the *slightest* nudge ont he transmitter and it all goes haywire for a good few minutes
[16:25] <fsphil> good idea
[16:25] <fsphil> I actually thought it was the BBC at first
[16:26] <fsphil> prawnsalad: try transmitting just a blank carrier, it should be a steady tone
[16:26] <fsphil> if it wobbles a lot then there could be a problem with the power
[16:27] <bbjunkie> fsphil - Friday, 21 Dec 2012 09:00 to Thursday, 31 Jan 2013 23:59
[16:27] <prawnsalad> ok thanks, will give it a go
[16:27] <bbjunkie> could well be they will launch early in the new year
[16:27] <DrLuke> woop! I tamed the TPS61201
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[16:28] <fsphil> bbjunkie: ooh that's a new date range from when I last saw it
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[16:29] <bbjunkie> strange, one of the cores in my Q6600 is running 5 degrees c cooler than the others
[16:30] <zyp> sounds normal
[16:32] <DrLuke> bbjunkie: check the load of the cores
[16:32] <DrLuke> maybe it doesn't get any load at all
[16:32] <zyp> I've observed my machines doing the same
[16:33] <bbjunkie> DrLuke - it's at idle but is seeing some random spikes like the others
[16:33] <sanity93> oh, I just saw the receiver type. that is odd, what guarantee would you have that the bandwidth would match, surely this like sending a fax over G.729 lol.
[16:33] <DrLuke> if you're using windows xp or vista, the core load will be pretty unbalaned
[16:33] <bbjunkie> using win7
[16:34] <fsphil> Navrac_Play: I wasn't writing anything to registers 0x13 or 0x10. that's the only difference -- but yours is working perfectly
[16:34] <DrLuke> I think they fixed that in win7
[16:34] <DrLuke> oh well
[16:34] <DrLuke> maybe the temperature sensor is just bad
[16:35] <zyp> I have a server with a X3220, which is just a xeon-branded Q6600, and it does the same
[16:35] <DrLuke> or maybe it's sitting further away or whatever
[16:35] <DrLuke> surely nothing to be concerned of :)
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[16:35] <Navrac_Play> glad it works now fsphil
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[16:35] <zyp> and my new i7 3770K also tends to have some degrees difference between the cores
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[16:36] <prawnsalad> ok, steady tone test, jumps slighty so suggesting power as you mention. the slightest nudge and it jumps a good 400khz
[16:36] <fsphil> Navrac_Play: dunno why though :) will have to poke at it some more
[16:36] <bbjunkie> ok zyp i'll ignore it then
[16:36] <prawnsalad> that cant be power, can it?
[16:37] Nick change: Mission-Critical -> MissionCritical
[16:37] <prawnsalad> (nudge on the transmitter that is)
[16:37] <fsphil> is this on breadboard?
[16:37] <DrLuke> zyp: did you mean i5?
[16:37] <prawnsalad> fsphil: it is, yea
[16:38] <zyp> DrLuke, no, 3770K is i7
[16:38] <fsphil> that could be it, breadboard can be very unreliable
[16:38] <prawnsalad> ah
[16:38] <sanity93> Really, ins't that just DSM2/DSMX just doing its thing. I dont think every servo get sampled per time slice and delivered on time. I would hardly expect bandwidth to be reliable at all.
[16:38] <sanity93> suprising if it is.
[16:38] <prawnsalad> i guess soldering this together would be the best test then
[16:39] <fsphil> might be worth trying another bit of breadboard first too
[16:39] <DrLuke> zyp: whoops, mistook it for my i5 3*5*70K
[16:39] <zyp> :)
[16:39] <zyp> I believe they are pretty identical, apart from the i7 having hyperthreading
[16:40] <DrLuke> yeah
[16:40] <DrLuke> and costing more
[16:40] <DrLuke> the 3570K was a blessing for my budget
[16:40] <DrLuke> and I can play all the newest games on highest settings with maxed out AA on 1680x1050
[16:41] <zyp> not with the internal GPU?
[16:41] <DrLuke> haha no
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[16:41] <DrLuke> geforce gtx 660 TI
[16:41] <zyp> because the gpu is more critical for games :p
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[16:42] <DrLuke> actually the CPU is bottlenecking most of the time
[16:42] <zyp> I got mine before the 660 was out, so I just picked up a 670, even though I barely play games
[16:43] <zyp> (the motherboard doesn't support driving 2560x1440 from the internal gpu)
[16:43] <DrLuke> the internal gpu is a joke anyways
[16:44] <DrLuke> I don't understand why anyone would even want to use it, there are gpus for 30 bucks that are a thousand times better
[16:44] <zyp> nothing wrong with it if you never play games
[16:45] <zyp> my laptop got a sandy bridge i5 and only uses the internal gpu, works perfectly fine
[16:45] <bbjunkie> ok im off to familiarise myself with the Boeing 737-800 FMC :) bbl
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[16:50] <SP9UOB> radim_OM2AMR is going to the landing place
[16:50] <eroomde> i got flu'd
[16:50] <eroomde> sucks
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[16:53] <fsphil> does
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[16:54] <fsphil> I'm just getting over this one now
[16:57] <fsphil> I'm starting to think this rfm22b datasheet has errors
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[17:02] <sanity93> It depends what version, you can't assume the V1.1 datasheet is the latest version.
[17:03] <sanity93> Also I was looking at this AR8000 receiver, the specs "11 Millisecond Frame Rate"
[17:03] <sanity93> that is only 90hz no?
[17:03] <sanity93> bugger all bandwidth.
[17:04] <fsphil> people have used AR8000's before
[17:05] <sanity93> But RTTY FSK?
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[17:05] <fsphil> yea, they've been used to track flights
[17:05] <sanity93> maybe this might work at 45bps.
[17:06] <fsphil> it will have at least 3khz bandwidth if it can do audio
[17:07] <sanity93> It doesnt have.
[17:09] <fsphil> google's telling me 4KHz
[17:09] <fsphil> Selectivity SSB 4.0KHz (-6dB) 7.5KHz (-50dB)
[17:10] <fsphil> they've been used to track flights with both 50 and 300 baud rtty signals
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[17:15] <sanity93> ok, mst have been base band bandwidths.
[17:15] <sanity93> i will see
[17:16] <fsphil> yea I'm not sure what that figure relates to
[17:17] <sanity93> ok sorry my english need imrpove
[17:19] <fsphil> no I mean the term "frame rate" :) your english is fine
[17:21] <sanity93> ok great, makes sense now when I look at those specs. I am just thinking because I have a spare audio signal from video transmitter system, I can use this but was thinking just some crude FSK..
[17:22] <sanity93> That was just a random thought, but you have a micro controller modulator for this RTTY? I want to use something like this.
[17:24] <sanity93> I have friend here that knows some more about modulation but he is now in the toilet, I will ask him what he means about the data rate when he returns.
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[17:32] <griffonbot> Received email: Tom Howlett "[UKHAS] Anyone fancy speaking at Cheltenham Geek Nights?"
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[17:50] <sanity93> here I have interesting puzzle.
[17:50] <sanity93> The airline philippine airlines. It is so big everywhere, it carries 9 million passangers in just a year.
[17:50] <sanity93> but it is banned in EU.
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[17:53] <jcoxon> afternoon all
[17:53] <griffonbot> @apexhab: Apex Alpha II coming along nicely http://t.co/p5qyWhAQ #apexhab #ukhas [http://twitter.com/apexhab/status/285081051762667520]
[17:53] <fsphil> howdy jcoxon
[17:53] <fsphil> ooh another apex
[17:53] <sanity93> What could the airline do that renders it unsafe to operate in the entire EU. They just do not maintain their planes? Why they can operate everywhere else.
[17:55] OZ1SKY_Brian (~Brian@x1-6-20-4e-7f-c8-44-7a.k599.webspeed.dk) joined #highaltitude.
[17:55] <OZ1SKY_Brian> hi
[17:56] <fsphil> evenin' OZ1SKY_Brian
[17:56] <fsphil> sanity93: probably some dull legal reason :)
[17:56] <OZ1SKY_Brian> Hi phil
[17:56] <sanity93> also it appears you pay less for the 'budget' airline, but it may be banned in some countries.
[17:56] <OZ1SKY_Brian> So i got the pro mini board today
[17:57] <sanity93> arduino?
[17:58] <OZ1SKY_Brian> yes
[17:59] <griffonbot> Received email: Anthony Stirk "Re: [UKHAS] Hello Everyone,"
[17:59] <fsphil> that's the tiny one with unpopulated headers isn't it?
[17:59] <sanity93> I has the leonardo / leostick, similar board. Just doing some i2c stuff with the wired library.
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[18:00] <OZ1SKY_Brian> fsphil realy dont know what i got my self into, hi
[18:00] <fsphil> lol
[18:00] <OZ1SKY_Brian> trying to find out more about it
[18:00] <fsphil> a dark twisty maze :)
[18:00] <Upu> Damn Apex Alpha2 small
[18:00] <fsphil> Upu: it's very long
[18:00] <danielsaul> Upu: Based on mattbrejza's CC430 design, but with a AAA holder on the back
[18:01] <Upu> I was just about to say
[18:01] <Upu> I suspect there is an AAA strapped to the back
[18:02] <priyesh> there's another version which runs of a coin cell which is shorter
[18:02] <priyesh> is that correct danielsaul ?
[18:02] <danielsaul> Uhhh
[18:03] <Upu> I have considered the AAA holder on the back
[18:03] <Upu> Got piles of Keystone 82 clips if you want them
[18:04] <danielsaul> Had been planning on using a plastic holder but clips might be better actually
[18:05] <Upu> I've done a library for it, which is tested and works
[18:05] <Upu> its in Ava.lbr
[18:05] <Upu> they are nice and solid
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[18:09] <danielsaul> Will take a look, thanks Upu
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[18:12] <griffonbot> @jonsowman: RT @apexhab: Apex Alpha II coming along nicely http://t.co/p5qyWhAQ #apexhab #ukhas [http://twitter.com/jonsowman/status/285085782849499136]
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[18:36] <Lunar_Lander> hello
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[18:38] <fsphil> happy post-end of the world Lunar_Lander
[18:38] <Lunar_Lander> xD thanks
[18:38] <Lunar_Lander> the same to you
[18:38] <SP9UOB> hello Lunar_Lander
[18:38] <fsphil> amazingly the world ending is just like normal
[18:51] <OZ1SKY_Brian> ahh looks like i forgot a unit to program it with, lol
[18:51] <fsphil> slightly important :)
[18:52] <OZ1SKY_Brian> yeah :-)
[18:52] <fsphil> does it not have a usb header?
[18:52] <OZ1SKY_Brian> no
[18:53] <craag> This is the arduino pro mini?
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[18:54] <OZ1SKY_Brian> yes
[18:54] <craag> So you just need a usb=>serial adaptor.
[18:55] <OZ1SKY_Brian> and that i dont have :-)
[18:55] <craag> Ah. That's annoying.
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[18:56] <om1ats> Tomek, good news from Radim, transmitter still alive !!!
[18:57] <x-f> SP9UOB, ^^
[18:57] <fsphil> wow
[18:57] <fsphil> after seeing that forest, I wasn't expecting a quick recovery
[18:58] <om1ats> Chase car is in map
[18:58] <fsphil> did they get a location from the signal?
[19:01] <SP9UOB> om1ats: cool, when i was testing battery runs for 18.5 h
[19:01] <Lunar_Lander> hi OZ1SKY_Brian
[19:01] <Lunar_Lander> hi om1ats
[19:01] <Lunar_Lander> you are from slovakia, like radim?
[19:01] <SP9UOB> om1ats: are they have position ? Or GPS still have no fix
[19:02] <om1ats> Yes Iam from Slovakia and Radim is my friend :)
[19:02] <SP9UOB> Lunar_Lander: OM prefix is for Slovakia
[19:02] <Lunar_Lander> yea
[19:03] <om1ats> This is cool, but Radim is now out of mobile signal
[19:04] <SP9UOB> om1ats: moutains
[19:05] <om1ats> yes mountains with snow...
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[19:17] <Lunar_Lander> Mount Snowdonia?
[19:18] <fsphil> I'd be impressed if they managed to land in Wales
[19:19] <Lunar_Lander> xD
[19:22] <Lunar_Lander> I wonder who will have the final end of the year say/but for what I am sure it will be a big "XD"
[19:22] <Lunar_Lander> (some lyrics by me)
[19:29] <OZ1SKY_Brian> fsphil ok made an order for e programmer, so no playing around rest of the year :-(
[19:30] <OZ1SKY_Brian> e=the
[19:30] <DrLuke> http://www.reddit.com/r/IAmA/comments/15muka/iama_93_year_old_who_cowrote_the_original_radar/
[19:31] <Laurenceb_> so i had an interesting idea for low power location
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[19:31] <Laurenceb_> use VLF radio
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[19:31] <Laurenceb_> http://abelian.org/vlf/index.php?page=access
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[19:31] <Laurenceb_> compress on the hab, downlink on 434mhz/whatever and correlate on the ground
[19:33] <fsphil> that is interesting
[19:33] <Laurenceb_> http://abelian.org/vlf/index.php?page=xcor
[19:33] <fsphil> basically the opposite of lightning detection
[19:33] <Laurenceb_> yes
[19:34] <Laurenceb_> i made a low power receiver ages ago
[19:34] <Laurenceb_> using two pie bases about 30cm apart
[19:34] <Laurenceb_> with opamp amplifier bandpass etc
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[19:34] <Laurenceb_> it could pick up VLF easily around 5 to 30khz
[19:34] <fsphil> I've a VLF detector here but it's not terribly light
[19:35] <fsphil> when there is no lightning in the UK, wouldn't it be very unreliable?
[19:35] <Laurenceb_> its worldwide
[19:36] <Laurenceb_> you can even detect it oscillating around the world several times
[19:36] <fsphil> yes but if all the lightning is far from the payload, the time received will not very much by location
[19:36] <Laurenceb_> not exactly
[19:37] <fsphil> the received signal wouldn't be much different from edinburgh to glasgow
[19:37] <Laurenceb_> as long as there is a good spread of bearings to the source
[19:37] <Laurenceb_> it will work
[19:37] <Laurenceb_> you will only ever get lat and long to within a few Km
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[19:37] <Laurenceb_> but it might be interesting for floaters
[19:37] <Dan-K2VOL> sprite searching?
[19:37] <Laurenceb_> yes
[19:38] <fsphil> I suspect solar powered GPS will be the most useful solution to floaters
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[19:38] <Laurenceb_> yes
[19:38] <Laurenceb_> but not as fun
[19:38] <fsphil> true
[19:38] <Laurenceb_> e.g. if you want to run at night under supercap power
[19:38] <Laurenceb_> it might be useful
[19:39] <Laurenceb_> im not sure if you could compress the data enough for downlink
[19:39] <fsphil> it might be more useful to do what the old sondes do, and relay part of the LW band
[19:39] <Laurenceb_> maybe if you process onboard then just send time stamps
[19:39] <fsphil> could use radio stations
[19:39] <Laurenceb_> yeah but i wonder if thats actually harder to do well
[19:39] <fsphil> yea, relaying audio is gonna be crappy with 10mw
[19:40] <Laurenceb_> its the same idea
[19:40] <Laurenceb_> yeah it struck me that VLF would compress and correlate rather better
[19:40] <Laurenceb_> eLORAN would work
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[19:40] <Laurenceb_> but thats limited range
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[19:41] <fsphil> it's still stuck with the 70cm LOS limit
[19:42] <Laurenceb_> yes
[19:42] <Laurenceb_> i want to try this now...
[19:42] <Laurenceb_> http://theinspireproject.org/default.asp?contentID=17
[19:43] <Laurenceb_> if you could time stamp the sferics and downlink...
[19:43] <fsphil> you'd just need the time of the gap between them
[19:44] <fsphil> the antennas my receiver has are very directional
[19:45] <om1ats> Tomek, signal is strong and decoded but without position, last fix 19:08 UTC
[19:46] <om1ats> Probably hanging on the tree, but Radim have "sondekiller" :)
[19:47] <SP9UOB> om1ats: im dying of curiosity what happened with GPS
[19:48] <om1ats> This gps is a mystery :)
[19:48] <x-f> what's a sondekiller?
[19:48] <SP9UOB> x-f: take look at STS-1 recovery movie
[19:48] <SP9UOB> om1ats: is radim alone?
[19:49] <om1ats> heh this is sondekiller http://www.forum.radiosonda.sk/viewtopic.php?f=14&t=14
[19:49] <om1ats> No in chase car is Radim and Brano (kraken)
[19:50] <x-f> 9 meters, ooh
[19:51] <SP9UOB> just one fix, one good position please :-)
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[19:52] <SP9UOB> magic GPS
[19:52] <SP9UOB> really
[19:52] <om1ats> yes magic gps without fix :)
[19:53] <Lunar_Lander> yea
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[19:55] <om1ats> Radim have 70cm yagi, in the worst case and will look for it as a analog VAISALA KL
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[19:57] <om1ats> ...but in the mountains will be a lot of reflections
[19:58] <SP9UOB> indeed
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[20:06] <Lunar_Lander> hello Dan-K2VOL didn't you find a better pressure sensor than the BMP085?
[20:06] <Dan-K2VOL> Hi Lunar
[20:06] <SP9UOB> is BMP085 3v3 compatible ?
[20:06] <Dan-K2VOL> depends on what you want to measure
[20:06] <Lunar_Lander> SP9UOB, yes
[20:06] <Lunar_Lander> Dan-K2VOL, well I vaguely remember a sensor that was said to be good down to 0 Pa or so
[20:07] <Dan-K2VOL> for absolute altitude, I've not really bothered, as the BMP085 was fine for our flights below 15km
[20:07] <Lunar_Lander> yeah
[20:07] <SP9UOB> ok, i have datasheet
[20:07] <Lunar_Lander> the BMP085 ends at 1000 Pascals
[20:07] <SP9UOB> Lunar_Lander: im using HP03 SA
[20:07] <Dan-K2VOL> it actually will go lower, but it's just not spec'd
[20:07] <Lunar_Lander> Dan-K2VOL, yea it is rated to 300 hPa that I know
[20:08] <Lunar_Lander> but a short pressure test showed that it stopped at some 1000 pascals
[20:11] <Dan-K2VOL> yeah it's not for very high flights
[20:11] <Lunar_Lander> yea
[20:11] <Lunar_Lander> also it starts to deviate in the unrated field
[20:11] <Lunar_Lander> i.e. from 300 hPa down it gets inaccurate
[20:12] <Lunar_Lander> but I need to do more testing on that
[20:12] <Dan-K2VOL> yeah it would need to be characterized, that's why we flew some test flights with it
[20:12] <Lunar_Lander> yea
[20:12] <Dan-K2VOL> gtg all, will be back in a few
[20:13] <SP9UOB> Lunar_Lander: http://sp9uob.verox.pl/balon/sp9uob-1-alt.jpg
[20:13] <SP9UOB> Lunar_Lander: was taken by hp03SA
[20:13] <Lunar_Lander> yea
[20:13] <SP9UOB> Lunar_Lander: Straight line on way back is because lost of gps fix
[20:13] <Lunar_Lander> ah
[20:14] <Lunar_Lander> that "stair" effect is interesting
[20:15] <SP9UOB> Lunar_Lander: log was every 2 seconds, full log if You wish: http://sp9uob.verox.pl/balon/L120623.TXT
[20:16] <Lunar_Lander> thanks :)
[20:18] <SP9UOB> so im think the HP03 is good enough :-)
[20:18] <Lunar_Lander> :)
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[20:39] <SP9UOB> om1ats: pls tell radim to go back to home, its very cold outside, capsule is not worthty to risk health
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[20:45] <OZ1SKY_Brian> slovaks are not quitters :-)
[20:47] <OZ1SKY_Brian> anyone launching around next weekend, tropo ducting looks pretty good for the UK area?
[20:51] <Lunar_Lander> hello OZ1SKY_Brian
[20:52] <OZ1SKY_Brian> hi
[20:52] <Lunar_Lander> how are you today?
[20:53] <OZ1SKY_Brian> not too happy, forgot to order the programmer for the pro mini boards, so im stuck
[20:53] <Lunar_Lander> :(
[20:53] <OZ1SKY_Brian> yeah but thats my own fault
[20:54] <Lunar_Lander> yea
[20:54] <OZ1SKY_Brian> live and learn
[20:54] <Lunar_Lander> yea
[20:58] <fsphil> OZ1SKY_Brian: I might be launching on the 1st
[20:59] <OZ1SKY_Brian> fsphil i think alot of people will :-)
[20:59] <SP9UOB> fsphil: at 0:00 ?
[20:59] <fsphil> few will go as far as mine :)
[20:59] <Dan-K2VOL> OZ1SKY_Brian there are some other ways to program it if you're determined
[20:59] <OZ1SKY_Brian> lol
[20:59] <fsphil> SP9UOB: would be nice!
[20:59] <OZ1SKY_Brian> Dan-K2VOL how?
[20:59] <fsphil> I will infact be indoors snug and warm :)
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[21:00] <Dan-K2VOL> do you have an ftdi cable?
[21:00] <fsphil> if I did launch at 00:00 it would probably get hit by a firework
[21:00] <Dan-K2VOL> do you have another arduino?
[21:00] <SP9UOB> fsphil: just use hydrogen :-)
[21:00] <OZ1SKY_Brian> Dan-K2VOL nope sorry
[21:01] <fsphil> haha
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[21:01] <OZ1SKY_Brian> Dan-K2VOL im all new to this, its my first project :-)
[21:01] <SP9UOB> or.. hydrogen mixed with oxygen... hmmm 2:1 would be ok
[21:01] <Dan-K2VOL> OZ1SKY_Brian do you have any other boards that you connect USB to the computer with?
[21:02] <fsphil> start the year with a bang
[21:02] <SP9UOB> and wait for firework
[21:02] <Dan-K2VOL> OZ1SKY_Brian which arduino pro mini do you have
[21:03] <OZ1SKY_Brian> Dan-K2VOL well, might have some old programming cables for cellphones with out usb
[21:03] <OZ1SKY_Brian> the 3.3V 328 pro mini
[21:06] <Dan-K2VOL> do you have a parallel port?
[21:08] <OZ1SKY_Brian> yes
[21:08] <Dan-K2VOL> OZ1SKY_Brian if you have a computer with a parallel port you can program it with a few resistors: http://arduino.cc/en/Hacking/ParallelProgrammer?from=Main.ParallelProgrammer
[21:10] <OZ1SKY_Brian> ahh great Dan, thanks ill have a look at that
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[21:14] <SQ5NWI> SP9UOB - Tomek, as I can see radim_OM2AMR is near to last baloon position. So he try to recover it, right?
[21:18] <Dan-K2VOL> OZ1SKY_Brian instead of having an ICSP Connector, just connect your wires directly to your pro-mini, use this pinout: http://www.wvshare.com/img/devkit/general/6-pin_ISP_Connector.jpg The pins to connect those named lines to on your pro-mini are thus: MISO-11, MOSI-12, SCK-13, RESET-RST, GND-GND
[21:19] <SP9UOB> SQ5NWI: right they are trying to radiopelengate it, because last wix was at 19:08 utc
[21:19] <SQ5NWI> wix?
[21:19] <SP9UOB> SQ5NWI: signal is strong
[21:19] <SP9UOB> fix
[21:20] <SP9UOB> :-)
[21:20] <SQ5NWI> OK, so position is in fact known, isnt it?
[21:20] <Dan-K2VOL> OZ1SKY_Brian follow the instructions here for uploading sketches: OZ1SKY_Brian
[21:20] <Dan-K2VOL> http://www.arduino.cc/en/Hacking/MiniBootloader
[21:20] <SP9UOB> SQ5NWI: last position was recorded at about 2km in altitude
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[21:22] <SP9UOB> SQ5NWI: so finding 5 cm ball in 3 km radius is just like searching needle in the haystack ;-)
[21:22] <x-f> hot-blooded Slovaks
[21:22] <SP9UOB> SQ5NWI: in complete darkness
[21:22] <OZ1SKY_Brian> Dan-K2VOL what about the VCC then?
[21:23] <Upu> hey Brian
[21:23] <Upu> did you get yourself a FTDI ?
[21:24] <OZ1SKY_Brian> no
[21:24] <Upu> have you ordered on ?
[21:24] <Upu> one
[21:24] Nick change: azend_ -> azend
[21:25] <OZ1SKY_Brian> yes i did a short while ago, before Dan told me i can do it another way :-)
[21:25] <Dan-K2VOL> well, it's not a pretty way to do it, but if you're really wanting to program now, it will work
[21:25] <Upu> ah ok I have a few lying about at work you could have had
[21:25] <Upu> anyway never mind
[21:25] <Dan-K2VOL> or for just writing code there are simulator apps available
[21:25] <Dan-K2VOL> how's it going upu
[21:25] <OZ1SKY_Brian> ah ok thanks for the offer, but i allready gave them ny credit numbers lol
[21:26] <Upu> evening Dan
[21:26] <Upu> very well
[21:26] <Upu> up to 45 hours from a single AA :)
[21:26] <Dan-K2VOL> hot damn, how'd that get there
[21:26] <Lunar_Lander> hello Upu !
[21:26] <Upu> http://ava.upuaut.net/?p=437
[21:26] <Upu> Evening Kevin
[21:27] <Upu> software :)
[21:27] <SQ5NWI> SP9UOB: So that last fix was not after fall, but it was last received and it was in the air? So was it really 19:08UTC? So late?
[21:27] <Dan-K2VOL> looking good!
[21:29] <Dan-K2VOL> I'm ordering a micro current meater from adafruit
[21:29] <Dan-K2VOL> ahem, meter
[21:29] <Upu> I'm lucky the works Fluke can go down to 0.001A and has an average function
[21:30] <Lunar_Lander> anthony, how are you today?
[21:30] <SP9UOB> SQ5NWI: it got lock when it was on the ground (tree), and its still transmittinh thet time
[21:30] <SP9UOB> that time
[21:30] <SP9UOB> brb
[21:33] <SQ5NWI> I'm lost. ;-) Clock locked?
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[21:40] <Gadget-Mac> Upu: Very much lashed together setup with simple antenna on the windowsill https://dl.dropbox.com/u/6014682/Screen%20shot%202012-12-29%20at%2021.38.38.png
[21:41] <Upu> not bad Gadget-Mac
[21:41] <Upu> I should give this a try I guess
[21:41] <Gadget-Mac> Dead easy really.
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[21:43] <SQ5NWI> SP9UOB: Now I understand - I found better explanation on local forum. Thanks Tomek.
[21:44] <SQ5NWI> SP9UOB: And another question - raw packets with uploading station are available only for some period of time on HUB or is there any source with all of them?
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[22:05] <jcoxon> any news on SP9UOB?
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[22:11] <Upu> not seen any jcoxon, Radim went looking for it
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[22:19] <fsphil> sounds like they're near it
[22:20] <fsphil> man it's cold out there tonight
[22:22] <jcoxon> brave doing it in the dark...
[22:22] <jcoxon> if only it had a lock
[22:26] <fsphil> it'll be interesting to see what happened that
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[22:34] <Lunar_Lander> Upu, do you have a moment?
[22:34] <cuddykid> implemented the daveake/"limit speed reporting" for the iPhone app :)
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[22:55] <Upu> hey Lunar back now
[22:55] <Upu> whats up ?
[22:55] <OZ1SKY_Brian> im off now, gn all
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[22:56] <Dan-K2VOL> night brian
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[23:03] <SP9UOB> radim is going back
[23:03] <SP9UOB> no news at the moment
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[23:15] <SP9UOB> lesson learned - when no lock - transmit last position and valid flag
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[23:17] <SpeedEvil> and possibly last course and speed
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[23:18] <SP9UOB> SpeedEvil: it was small tracker based on pic16f628 - there was no ram to store much things
[23:18] <SpeedEvil> ah
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[23:19] <SP9UOB> i was plan only to test 100g envelope - GPS fail is just magic...
[23:19] <SP9UOB> it stuck at 6200m altitude and then lost fix completly
[23:20] <SP9UOB> later, after burst was only one frame with valid data
[23:21] <SP9UOB> and last lock - received by OM2AMR near landing site was at 19:08 - so GPS is behaving strange
[23:21] <fsphil> ah, 16f628 was the first microcontroller I ever used
[23:21] <SP9UOB> fsphil: my was 16F84
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[23:22] <SP9UOB> just after Z80, and MC68000
[23:22] <fsphil> you used those as microcontrollers, and not as part of a computer?
[23:23] <fsphil> I did some brief 68k assembly on the amiga but never really got into it
[23:23] <SP9UOB> fsphil: Z80 was working as uc - with even no external RAM (registers only) and EPROMM
[23:23] <SP9UOB> but it was a loooong time ago :-)
[23:23] <fsphil> how many registers does the z80 have?
[23:23] <fsphil> you'd not be able to do that on a 6502 :) 3 registers
[23:24] <SP9UOB> hmm A, HL, BC, DE X,Y and 'ghost - alternative' pairs
[23:24] <SP9UOB> if i recall correctly
[23:24] <fsphil> 6502 has A, X and Y
[23:25] <zyp> fsphil, you just need to have a very small working set :p
[23:25] <SP9UOB> i had a friend in scholl - it was an Atari fan :-)
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[23:26] <SP9UOB> fsphil: atari 800xl - if i remember - was 6502 powered
[23:26] <fsphil> I've never seen an atari computer
[23:27] <fsphil> it was all amiga around here
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[23:27] <SP9UOB> fsphil: later on i also brought an Amiga 500, then 1200
[23:27] <SP9UOB> fsphil: even PPC processor board
[23:27] <fsphil> sweet!
[23:28] <fsphil> I couldn't afford those
[23:28] <fsphil> my 1200 never got an upgrade, but I did get an extra 1Mb for the A600
[23:28] <fsphil> and an RTC. woooo
[23:28] <SP9UOB> rtc rules :-)
[23:29] <SP9UOB> days without Internet and NTP protocol
[23:29] <fsphil> I scan ebay for 030 accelerators now and then
[23:29] <fsphil> would like to get more memory into it
[23:29] <fsphil> the disk loaders don't run on the stock ram
[23:29] <fsphil> for loading floppy games from hdd
[23:30] <SP9UOB> btw: when i said to my daughter (9 yrs): "lonk time ago, when there was no cellpnones..." She ask me "so how did you send text messages ... "
[23:30] <SP9UOB> *long
[23:30] <fsphil> haha
[23:31] <fsphil> carrier pigeon
[23:32] <SP9UOB> there was RFC about sending IP datagrams over pigeon
[23:32] <SP9UOB> btw: someone in UK found letter attached to pigeon's leg datad WW2
[23:33] <SP9UOB> its encrypded - and there is no way to decode
[23:33] <SP9UOB> sorry for thr typos
[23:34] <SP9UOB> im little bit tired :-)
[23:34] <fsphil> any news?
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[23:34] <SP9UOB> no, just chase car was moved
[23:35] <Upu> they decoded it SP9UOB
[23:35] <SP9UOB> OM2AMH has parents near landing place - i hope he will stay there by night
[23:35] <Upu> wasn't very interesting
[23:35] <SP9UOB> upu: really? When i can read about it?
[23:35] <SP9UOB> where - sorry for my english
[23:36] <Upu> checking
[23:36] <SP9UOB> anyway its better than my chinese ;-)
[23:37] <Upu> http://www.telegraph.co.uk/news/uknews/defence/9748484/Has-the-D-Day-pigeon-riddle-been-cracked.html
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[23:38] <SP9UOB> Upu: thanks
[23:40] <lz1dev> excellent time for a song
[23:40] <lz1dev> https://www.youtube.com/watch?v=uo6OCxwUPPg
[23:41] Action: SP9UOB is listening: http://91.121.89.153:9900
[23:44] <fsphil> aaaah
[23:44] <SP9UOB> fsphil: ???
[23:45] <fsphil> the wonders of life song
[23:45] <fsphil> it's aaaah-worthy
[23:46] <SP9UOB> fsphil: "always look at dark side of life" also :-)
[23:47] <SP9UOB> fsphil: "always look at bright side of life" also :-)
[23:47] <SP9UOB> sorry
[23:47] <SP9UOB> https://www.youtube.com/watch?v=jHPOzQzk9Qo
[23:48] <fsphil> classic :)
[23:53] <Lunar_Lander> Anthony?
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[23:58] <SP9UOB> http://www.youtube.com/watch?feature=player_embedded&v=dWONT47LFZM
[23:59] <SP9UOB> todays plane crash at Wnukovo aiport
[00:00] --- Sun Dec 30 2012