highaltitude.log.20140509

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[06:51] <SA6BSS> B-50 up running east
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[07:16] <DL1MX> GM, what frequency has B-50?
[07:20] <SA6BSS> looked like 434.500
[07:20] <DL1MX> Thank you.
[07:20] <SA6BSS> 'when I tuned in on websdr
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[07:36] <DL1MX> will try with funcube and x-quad
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[08:17] <amell> B-50 went right over my head and I didnt know :(
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[08:21] <SM5OCI> It's the early ham who releases the balloon...
[08:29] <SM5OCI> Quite a difference if B-50 is on 7000m or 8000m: http://ready.arl.noaa.gov/hypubout/111764_trj001.gif
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[08:37] <amell> the 8K route would be quite interesting
[08:38] <fsphil> it could float higher
[08:38] <fsphil> the last few all seem to have
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[08:39] <gonzo_> well it's passed that already
[08:39] <amell> DL7AD: where are you listening to B50 from?
[08:41] <Maxell> OK, RevSpace is decoding B-50 now.
[08:46] <DL7AD> amell: websdr
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[08:54] <nats`> lol @hackaday SCI-FI winner choice
[09:01] <gonzo_> are we looking at a 10km float for B50?
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[09:28] <DL7AD> gonzo_: yes
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[09:33] <Maxell> gonzo_: yep http://spacenear.us/tracker/?filter=B-50
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[09:40] <Maxell> http://i.sigio.nl/b53affe66b6d1d766761b04a387ad160.png
[09:41] <Maxell> http://i.sigio.nl/f4044a88030fdd9c9fe9b7b2e04bf7e1.png
[09:41] <Maxell> strong signals :)
[09:41] <Maxell> I like them.
[09:44] <Upu> http://i.imgur.com/sHW8KUZ.png thats me check radio horizon :)
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[09:45] <Maxell> Upu: tropo or just high up?
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[09:45] <Maxell> And will contestia decode under the noise floor with your setup?
[09:45] <Upu> 300m asl
[09:46] <Upu> and very clear los out that way
[09:46] <Maxell> NIC!
[09:46] <Maxell> E!
[09:46] <Upu> it will probably die at -1 elevation
[09:46] <Maxell> Well contestia and olivia are "the" magical modes.
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[09:47] <Maxell> http://i.sigio.nl/ae72a7f68f04d90e3351d4eb8eb8498a.png
[09:49] <fsphil> the magic is all maths
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[09:52] <gonzo_> LOS is always confusing, line of sight, or loss of signal
[09:53] <DL7AD> ah.... damn... http://dl7ad.de/cont.png
[09:53] <DL7AD> no strong signal
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[09:57] <Seejjay> I am confused - The modes indicated are DominoEX and Contestia. I thought that it would have had to be one or the other?
[09:57] <Seejjay> BTW VAC works fantastically - signal is much better on dl-fldigi.
[09:58] <dg9bfc_sigi> what is exact frequency??
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[09:59] <dg9bfc_sigi> hello frits:-)
[09:59] <Seejjay> 434.502Mhz
[09:59] <PE2G> Hi Sigi :)
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[10:00] <PE2G> dg9bfc_sigi: Are you ready for B-50 ?
[10:00] <dg9bfc_sigi> yes i AM READY :-)
[10:00] <PE2G> Cool
[10:01] <dg9bfc_sigi> if it is over your station you start a rocket ... and then with parachute it will land at my station (just kidding)
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[10:03] <PE2G> dg9bfc_sigi: B flights don't have parachutes...
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[10:04] <Upu> I think I'm loosing it
[10:04] <PE2G> Because they continue flying forever :)
[10:04] <Upu> which is unsurprising
[10:04] <dg9bfc_sigi> my biggest problem is that i have a wireless headphone in my neighbourhood ... that nearly wipes out 434.3-434.5
[10:04] <Upu> lol
[10:05] <PE2G> dg9bfc_sigi: Contestia is very good in QRM
[10:05] <Upu> FEC for the win : http://i.imgur.com/8Zrf7NN.jpg
[10:05] <nats`> dg9bfc_sigi I have a solution for that
[10:05] <nats`> just QRM the 434MHz band for days
[10:06] <nats`> they will stop using that :D
[10:07] <PE2G> dg9bfc_sigi: I have bad QRM here and still greens only
[10:07] <dg9bfc_sigi> yes ... that would be maybe a solution... i can also as regtp to switch it off ... it is tooo strong ... distance abt 1km and a few houses in between and signal is about 30-40 db over noise ..
[10:07] <PE2G> http://s12.postimg.org/7yighzvx9/Screen1416.jpg
[10:07] <dg9bfc_sigi> that is tooo much for that distance
[10:08] <dg9bfc_sigi> it should be way lower (only receiveable around the house where it is used)
[10:09] <dg9bfc_sigi> i should make a test beacon on 434.4 "this is d9bfc with test" ... with a beam in the direction of the other house and a gallon of power (the headphone shall melt on his head)
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[10:11] <PE2G> dg9bfc_sigi: I have B-50 on 434.501.3 , cursor 963 Hz
[10:14] <dg9bfc_sigi> got my first receive :-)
[10:14] <PE2G> Nice!
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[10:21] <ss2116> has anyone here used balloons for remote sensing purposes?
[10:21] <ss2116> looking for tips and tricks
[10:24] <gonzo_> plenty of payloads have carried temperature measurement, and i think a few have tried flying a GM/silicon readiation meter]
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[10:25] <gonzo_> I was getting B50 with the pips centred on 434.501975
[10:26] <daveake> a true ham ... quotes UHF frequencies to the nearest 1Hz :)
[10:27] <gonzo_> the receiver is locked to gps ref, but I can't be sure of the cal of the sound card. Not recalled the one on this PC
[10:29] <gonzo_> we have one guy who has two Cs references, so he can avareage the error
[10:29] <gonzo_> average
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[10:37] <SpeedEvil> It is actually quite plausible to go way below 1hz
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[10:41] <Maxell> $$+*%0,12,4.41,0.6*012B :(
[10:42] <gonzo_> I would need to cal/lock the sound card reference and also lock the SDR if I wante to do the job properly
[10:43] <gonzo_> (the guy with the miltiple references quotes 10GHz to millihertz
[10:43] <gonzo_> accuracy)
[10:43] <Maxell> It's not yet floating...
[10:44] <Maxell> PE2G: are you ready for a chase? :)
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[10:48] <Maxell> Yup. Strong contestia signal is beating the QRM: http://i.sigio.nl/a2f10c97b54770ed9d9180736ddd6514.png and http://i.sigio.nl/81c0eddd6c930b88e3df1a3870fbc147.png
[10:49] <PE2G> Maxell: yes, but I think it'll be a long one :)
[10:52] <Maxell> Well, if it wont start floating any time soon it might come down.
[10:52] <dg9bfc_sigi> how long depends on how good the baloon will hold the gas ... and hopefully it will not be sucked in a jetplanes turbine :-)
[10:53] <Maxell> Audio stream 434.501 MHz http://ipv7.xs4all.nl:8181/
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[10:56] <dg9bfc_sigi> @maxell ... you said that if it will not start foating soon it will come down ... down after a burst ... or loosing gas?? what do ya think?
[10:58] <SpeedEvil> For latex balloons - in general - they either start floating - or at higher ascent rates/fills - burst
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[10:59] <dg9bfc_sigi> yes i know what it is with latex balloon ... is b50 latex or foil??
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[11:03] <SpeedEvil> foil
[11:03] <SpeedEvil> All b* balloons are foil
[11:04] <SpeedEvil> At least recently
[11:04] <SpeedEvil> I'm not sure about the first couple - but >b8 or so definitley
[11:04] <SpeedEvil> the most recent ones are DIY foil made with actual sheet material and a bag-sealer type thing.
[11:04] <amell> Maxell: that audio stream - how do i read it?
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[11:06] <Maxell> amell: either with a media player or modern browser.
[11:07] <amell> is an http stream? safari wont read it. will try ffox
[11:07] <amell> ok got it
[11:07] <Maxell> Yep. It's ogg over HTTP. Firefox here reads it as media and shows me his built in player.
[11:10] <amell> ok contesia?
[11:10] <Maxell> amell: yep
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[11:10] <Maxell> It's already decoding as RevSpace.
[11:10] <amell> ?
[11:10] <amell> which contesia?
[11:11] <amell> sorry - not looked for Bs before.
[11:11] <Maxell> 8/250
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[11:11] <dg9bfc_sigi> if you use dl fldigi hab mode ... then it is setup automagically
[11:12] <amell> ok. i hear a beat.
[11:12] <dg9bfc_sigi> hey FRITS ... pegging s meter at the righ side now??
[11:12] <dg9bfc_sigi> the balloon send "bips" in the pause between transmission ... so when your hear a beat then all is fine
[11:13] <amell> have put red bit over the green in the WF. waiting
[11:13] <Maxell> dg9bfc_sigi: not for B-50. Contestia 8/250 isn't in the auto-configure (yet).
[11:14] <amell> ok. im not getting it
[11:15] <dg9bfc_sigi> ok ... then i was wrong in THIS case ...
[11:16] <Maxell> dg9bfc_sigi: in general you can autoconfigure it yes :)
[11:16] <Maxell> Still accending :|
[11:17] <gonzo_> where is the limitation on the data mnodes?? In the fl-digi or the back office??
[11:18] <Maxell> dl-fldigi is already heavily modified so extra datamodes should not be the problem, I think.
[11:18] <amell> http://imgur.com/ZKugbw6
[11:19] <amell> what am i doing wrong?
[11:19] <PE2G> PE2SR is in the list of trackers but doesn't show up on the map. Any ideas why not?
[11:19] <Maxell> PE2G: altitude?
[11:20] <dg9bfc_sigi> maybe he did not set locaion correct??? so he receives location of balloon but he does not send stations location in the net?!?
[11:20] <Maxell> PE2G: check if the altitude is at least 0 :)
[11:20] <amell> can someone tell me why i am not receiving in dl-fldigi?
[11:20] <PE2G> Ok, tnx, location is correct, but maybe he forgot the alt
[11:21] <mattbrejza> amell: zoom out for a start (click on where it says x4)
[11:21] <amell> ok.
[11:21] <amell> x1 now.
[11:21] <Maxell> amell: if you use my stream it should be around 950 Hz
[11:21] <dg9bfc_sigi> at amell ... did you select stereomix (or if not available vac) ??? how do you get audio and how feed that to fldigi??
[11:21] <Maxell> dg9bfc_sigi: my audio stream.
[11:22] <dg9bfc_sigi> so then he must use stereomix or virtual audio cable
[11:22] <amell> ok. so where do i put the red bar
[11:23] <amell> every time i move the red bar it jumps back to 1500
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[11:24] <amell> <<2014-05-09T11:25Z Contestia @ 434125+1499>>
[11:24] <Maxell> thats weird
[11:24] <mattbrejza> turn off rxid for now
[11:25] <Maxell> Still using my stream?
[11:25] <amell> yes
[11:25] <Maxell> Or own source?
[11:25] <amell> your stream
[11:25] <Maxell> hmm, it should be at ~950 Hz.
[11:25] <amell> why is it shifting
[11:26] <Maxell> I do not know.
[11:26] <Maxell> Well, it could be RxID
[11:27] <wd8mnv> there's a window at the bottom that maybe you can use it to tune... rightmost one
[11:28] <wd8mnv> the one beside 'fast'
[11:29] <amell> http://imgur.com/QqYKW4O
[11:29] <amell> $$B-50,288,112832,140509,52.2623,6.7531,11507,8,13,4.41,0.59*F6A1 :)
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[11:30] <amell> over the horizon reception. not bad
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[11:32] <SpeedEvil> :)
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[11:36] <amell> contesia is quite impressive
[11:38] <fsphil> it is
[11:38] <fsphil> very slow though
[11:39] <amell> btw, i think its in a float now
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[12:02] <Maxell> PE2G: I see that PE2SR is on the map now.
[12:02] <Maxell> It was the altitude?
[12:02] <PE2G> No, he re-entered his position and then he showed up
[12:04] <PE2G> Maybe his position was way off initially
[12:06] <amell> http://i.imgur.com/HEtjrBV.jpg
[12:06] <dg9bfc_sigi> still going up slowly
[12:06] <amell> The Leobodnar swarm
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[12:09] <dg9bfc_sigi> ... maybe floating maybe still a bit upwards ... but that is normal with going a bit up and down?!?
[12:09] <craag> It's when they deviate from the hysplit and position over capital cities that we should start worrying
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[12:14] <amell> btw B-50 is m0xer-10
[12:16] <amell> lost my sound
[12:16] <amell> back again.
[12:16] <amell> the connection timed out
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[12:22] Nick change: DL1MX_Marc0 -> DL1MX_Marco
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[12:36] <dg9bfc_sigi> still going up very slowly (or it seems so)
[12:37] <dg9bfc_sigi> receiving is rock solid on this end
[12:37] <Maxell> dg9bfc_sigi: that is good to hear.
[12:38] <dg9bfc_sigi> only 58 km distance and i use a yagi ... so no question that receiving is good :-)
[12:39] <dg9bfc_sigi> how it tx frequency locked ... just a crystal or derived from gps?? i am asking cause it is so stable
[12:40] <Upu> crystal TCXO
[12:40] <Upu> with a small heater on it I believe
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[12:41] <dg9bfc_sigi> a heatewr?!? wow .. did not know that in such a tiny balloon tracker (and with resricted power available) a heater can be implemented
[12:41] <Darkside> haha
[12:41] <Darkside> a resistor
[12:41] <craag> It'll be a tiny heater
[12:41] <Darkside> you dont need much heat
[12:42] <craag> Yeah just enough to keep the TCXO within it's range
[12:43] <Maxell> And if you start out with a good crystal you do not need much :)
[12:43] <amell> still gradually going up...
[12:43] <amell> 11761
[12:43] <Maxell> dg9bfc_sigi: https://revspace.nl/images/0/05/SaZOJpU.png for ~13 kilometers... Now doing 257.9km with ease.
[12:43] <amell> man, i am getting it over 8 degrees of longitude.
[12:43] <amell> :)
[12:43] <Maxell> :P
[12:43] <Maxell> cheating
[12:44] <Maxell> :D
[12:44] <Maxell> I do say the 10km+ float makes it some more fun
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[12:45] <dg9bfc_sigi> i do not know if that is comparable ... but i usually track weather balloons with a distance of far over 300km (record was over 600!! but that wer dx conditions)
[12:48] <amell> My elevation to B-50 is -1.3 deg and distance 564km
[12:50] <Maxell> dg9bfc_sigi: yeah ive seen the distances too... PE2G had some nice ducting
[12:51] <PE2G> AVA: 737 km - http://i.imgur.com/xVUOIEx.png
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[12:51] <amell> 11776
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[12:52] <Upu> I remember that one
[12:54] <Upu> OE was over Austria
[12:54] <Upu> that was just before it burst I think PE2G
[12:55] <PE2G> Yeah, it lasted only a few minutes before the signal disappeared
[12:55] <Upu> good signal though
[12:56] <PE2G> I was totally suprised by that signal
[12:56] <PE2G> *surprised
[12:58] <PE2G> directions between 090 and 130 degrees are difficult here since my appartment building is in the way
[12:59] <dg9bfc_sigi> then your antenna is too low :-)
[12:59] <PE2G> ;)
[12:59] <dg9bfc_sigi> when building is in the way ... why not antenna ontop of the building??
[13:00] <dg9bfc_sigi> ... by the way ... pegging my s-meter nearly :-)
[13:00] <PE2G> Then I'd have to cut through a lot of red tape
[13:01] <dg9bfc_sigi> ????? dont understand .. what red tape??
[13:01] <PE2G> A battle with the "authorities" here
[13:02] <PE2G> The roof of this building is a no-go area
[13:03] <Maxell> PE2G: yagi on a piece of pipe and up it goed :P
[13:04] <PE2G> Nope, the lift shaft building is still in the way to the east
[13:05] <PE2G> I'd need to get on top of that :/
[13:05] <Maxell> Hmm
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[13:15] <Maxell> 1 degree horizon. 293.2km. Still going strong.
[13:15] <Laurenceb__> http://ready.arl.noaa.gov/hypubout/118041_trj001.gif
[13:16] <Laurenceb__> B-47 might be stuck in a circulatory system
[13:16] <LeoBodnar> magic roundabout
[13:17] <Maxell> :P
[13:18] <Laurenceb__> earliest it could arrive is about now
[13:19] <OZ1SKY_Brian> B-50 here now
[13:20] <Maxell> OZ1SKY_Brian: nice!
[13:20] <OZ1SKY_Brian> very weak but readable though
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[13:21] <PE2G> OZ1SKY_Brian: below the horizon decoding :)
[13:22] <OZ1SKY_Brian> -0.4deg
[13:22] <PE2G> Nice
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[13:28] <Lunar_LanderU> hello
[13:29] <PE2G> Some static on the freq here due to thunderstorms in the vicinity
[13:29] <Lunar_LanderU> can I have a frequency for B-50 please?
[13:30] <PE2G> 434.501.3 MHz
[13:30] <Lunar_LanderU> thanks
[13:30] <Lunar_LanderU> USB?
[13:30] <PE2G> Hi Lunar Lander, and yes USB
[13:30] <Lunar_LanderU> thanks PE2G and hello
[13:31] <Lunar_LanderU> I think I can see something like a weak signal on the waterfall
[13:31] <Lunar_LanderU> is it like an earlier B-Series Balloon that it only transmits every 5 minutes?
[13:33] <PE2G> Telemetry about every min currently
[13:33] <PE2G> http://www.strikestareu.com/
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[13:35] <PE2G> http://www.industry.siemens.com/services/global/de/blids/service/spion/Seiten/spion_de.aspx
[13:35] <Lunar_LanderU> yea
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[13:36] <Lunar_LanderU> I think I saw a transmission about 20 sec ago
[13:36] <amell> -1.7 deg decoding here.
[13:36] <Lunar_LanderU> but not sure
[13:36] <amell> btw, rxid screws it up. i dont know why. ok with it off.
[13:36] <Laurenceb__> anyone here worked with active directory stuff on ubuntu?
[13:37] <Laurenceb__> i dont have a clue what im even trying to do here
[13:37] <amell> laurenceb__: dont even try to do it then
[13:37] <amell> are you using samba?
[13:37] <Lunar_LanderU> nothing :(
[13:37] <Lunar_LanderU> 434.503.35
[13:38] <Laurenceb__> amell: I think so
[13:38] <mikestir-work> Laurenceb__: are you trying to join it to a domain?
[13:38] <Laurenceb__> im trying to connect to a print server
[13:38] <amell> google samba active directory
[13:38] <Laurenceb__> its asking me for my username and passwork
[13:38] <amell> you will have to configure samba
[13:38] <Laurenceb__> but im not sure of the username format
[13:38] <Laurenceb__> amell: its already configured and working
[13:38] <amell> domain\username
[13:39] <amell> or domain/username - i can never remember
[13:40] <Laurenceb__> should domain start with "ad" ?>
[13:40] <amell> if it is a fqdn then it might
[13:40] <Laurenceb__> hmf
[13:41] <Laurenceb__> maybe i should try to find the network admin :S
[13:41] <Laurenceb__> i think ive tried all the likely permutations
[13:41] <Laurenceb__> of domain and stuff
[13:41] <amell> i think B-50 will be a 12K floater again
[13:42] <Laurenceb__> ok thanks for the help, time to treck around and search for admins
[13:42] <Lunar_LanderU> thanks again PE2G
[13:42] <Lunar_LanderU> nothing to be heard here :(
[13:43] <PE2G> Schade :(
[13:45] <Lunar_LanderU> ja
[13:45] <OZ1SKY_Brian> Lunar_LanderU than you have a problem, as its readable here.
[13:45] <Lunar_LanderU> yea
[13:45] <Lunar_LanderU> maybe its because of the simple antenna
[13:46] <OZ1SKY_Brian> its 418km away from here and i get a fine signal. So something is very wrong
[13:48] <Lunar_LanderU> yea
[13:48] <Lunar_LanderU> my Stabo XR100 is on USB 434.501.45
[13:49] <OZ1SKY_Brian> <<2014-05-09T13:41Z Contestia @ 434500000+1668>>
[13:50] <Lunar_LanderU> hm
[13:50] <OZ1SKY_Brian> you have a outdoor antenna on it right?
[13:51] <Lunar_LanderU> no, I am here in my office and just have the whip antenna that came with it
[13:51] <Lunar_LanderU> I suspect that is the problem
[13:51] <OZ1SKY_Brian> ahh, bingo
[13:52] <OZ1SKY_Brian> you need a outdoor antenna on it and a good coax cable thats not too long
[13:52] <Lunar_LanderU> OK
[13:52] <sp2ipt> LeoBodnar: yay I just got my PCBs from china ;) Wonder why they made 22 instead of 10 ;)
[13:52] <PE2G> Lunar_LanderU: Can't you get on a roof somewhere?
[13:52] <Lunar_LanderU> no, sorry
[13:52] <OZ1SKY_Brian> Lunar_LanderU take it outside and listen, you should be able to hear it just fine
[13:52] <Lunar_LanderU> will do that in a moment
[13:52] <Lunar_LanderU> thank you
[13:52] <Lunar_LanderU> talk to you later!
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[13:54] <sp2ipt> LeoBodnar: will have to test but looks like they've managed with 6mils
[13:56] <nats`> sp2ipt the dirty pcb service ?!
[13:57] <nats`> get a microscope view of VIA centering please I beg you :)
[13:57] <nats`> if they are not so dirty maybe I'll use them
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[14:00] <LeoBodnar> cool sp2ipt
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[14:00] <Laurenceb__> hehe nats`
[14:00] <Laurenceb__> some of the cheap pcbs are famous for poor via accuracy
[14:00] <nats`> I have plenty of example
[14:01] <nats`> I dropped all the last batch I got from seedstudio
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[14:08] <DL1MX_Marco> Now clearly hearable in Harz mountains: $$B-50,428,140605A!40509,52.6886,9.4236,11909,7,9,4.41,0.65*F02C
[14:08] <DL1MX_Marco> building moved away ;-)
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[14:13] <sp2ipt> nats`: yep, will try to find some decent microscope round here, someone at work should have one
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[14:14] <sp2ipt> nats`: but with bare eye they look OK
[14:14] <sp2ipt> there are marks after etest
[14:14] <nats`> sp2ipt you need all o them ?
[14:14] <nats`> if not send me one I'll put it un microscope :)
[14:15] <nats`> and do emasure
[14:15] <nats`> measure
[14:15] <nats`> (I can send it back after :))
[14:15] <Silver_IV7> To get a feel of the tracking software i'm currently playing with the tinygps++ library examples but when I run them I just see the following in the serial monitor? "øÿÿÿÿÿþÿÿÿüÿÿÿÿþÿýÿðþþÿùÿÿÿþúÿþüÿÿÿÿÿÿ"
[14:15] <sp2ipt> nats`: no problem, pm me the address
[14:16] <sp2ipt> but they have no small vias - I didn't dare try it for the first time
[14:16] <sp2ipt> give me a sec and I'll post a picture
[14:16] <Upu> Silver_IV7 thats probably nulls i.e you're reading past the end of the data coming in
[14:17] <mattbrejza> or your baud rate is set wrong on your serial monitor
[14:17] <Silver_IV7> hmm that's literally all I get though, I've changed the code to rxpin4 and txpin5 and gpsbaud 9600 for the ublox max7 but not luck
[14:18] <Upu> try slow the speed down if you're using software serial
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[14:23] <sp2ipt> http://sztormik.com/temp/dirtypcbs/IMG_20140509_161442.jpg
[14:23] <sp2ipt> http://sztormik.com/temp/dirtypcbs/IMG_20140509_161447.jpg
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[14:23] <sp2ipt> http://sztormik.com/temp/dirtypcbs/IMG_20140509_161505.jpg
[14:23] <sp2ipt> http://sztormik.com/temp/dirtypcbs/IMG_20140509_161514.jpg
[14:24] <sp2ipt> taken with a mobile no not vy great ;)
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[14:24] <Laurenceb__> doesnt look dirty to me
[14:24] <mattbrejza> you got enough? :P
[14:24] <sp2ipt> strangely I ordered 10 and got 22 ;)
[14:24] <sp2ipt> dunno really why
[14:25] <mattbrejza> ive ordered 10 and got 12, but 22 is pretty good going :P
[14:25] <sp2ipt> but the package came damaged :/ The customs office packed it in a foil and labeled it came broken from abroad
[14:25] <mattbrejza> did you have to pay import duty?
[14:25] <sp2ipt> mattbrejza: no
[14:25] <mattbrejza> ok
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[14:27] <sp2ipt> I'll have to measure but vias look a bit skewed. Vias or just part of the silkscreen
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[14:30] <sp2ipt> quick hand etest with ohmmeter looks fine
[14:32] <sp2ipt> yes, some parts of the silkscreen is skewed - different angles and distances in different part of the pcb
[14:32] <DL1MX_Marco> $$B-50,454,143108,140509,52.8157,9.8603,11910,7,16,4.41,0.62*DF5E
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[14:38] <Silver_IV7> Found a fix, if I change the serial monitor to 115200 baud then it decodes fine, no idea why
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[14:59] <sp2ipt> does B-50 now transmit exactly at 434,500 or has it shifted a bit? I'm getting something on ,502 but I'm not sure if it's B-50 :)
[15:00] <DL7AD> sp2ipt: actually it shoud transmit right at 501
[15:01] <sp2ipt> ok, it makes sense 501 + signal at 2kHz in audio baseband
[15:01] <DL7AD> sp2ipt: no
[15:01] <DL7AD> if you tune to 502 it will be at -1khz at your baseband
[15:03] <DL1MX_Marco> mine is on 434501600
[15:03] <sp2ipt> DL7AD: I wouldn't be so sure ;) if you tune to 501 (on which you say it should transmit) you'll get an audio signal somewhere about 1,5kHz or so - in the middle of the audio band
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[15:04] <DL7AD> sp2ipt: then B-50 would transmit on 434.5025
[15:04] <DL7AD> but i think thats not the case
[15:04] <PE2G> sp2ipt: I have B-50 on 434.501.4 , cursor 979 Hz
[15:04] <DL7AD> ah okay. then i was incorrect
[15:05] <sp2ipt> ok, it makes sense - I'm listening on ,501 and have an audio signal on abt. 1kHz
[15:05] <mfa298> question is, how accurate is the reading on your receiver (and what is it reporting)
[15:06] <PE2G> sp2ipt: Could be it
[15:06] <sp2ipt> and it's moving - probably B50 :)
[15:06] <sp2ipt> PE2G: tnx, that makes perfect sense :)
[15:06] <dg9bfc_sigi> yep ... some use ansdr .. and some do not ... and all depends on how accurate both are calibrated
[15:07] <PE2G> sp2ipt: Data now
[15:07] <sp2ipt> I'm running SDR with TCXO :) but have birdies from multiplying 14,4MHz
[15:08] <dg9bfc_sigi> barely herabl with whip on scanner in the house .. went outside and have a clear signal
[15:08] <sp2ipt> PE2G: too far from me now (I'm using only vertical antenna not a yagi) I only see some remnants of signal
[15:08] <dg9bfc_sigi> tracking here is done with fcdpp and 9el yagi
[15:09] <DL1MX_Marco> using FUNcube Pro+ with WIMO X-Quad and have tuned to ,500 and cursor at 1.6kHz
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[15:09] <dg9bfc_sigi> but for comparison i also switched on my scanner
[15:09] <dg9bfc_sigi> wit antenna indoor
[15:10] <DL1MX_Marco> antenna only 1m above ground here ;-)
[15:10] <dg9bfc_sigi> dist abt 100km
[15:10] <dg9bfc_sigi> my yagi sits on 2m mast .. turned by a
[15:10] <dg9bfc_sigi> armstrong rotatot
[15:11] <dg9bfc_sigi> uups
[15:11] <dg9bfc_sigi> armstrong rotator
[15:11] <sp2ipt> you mean your arm is strong? ;)
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[15:11] <dg9bfc_sigi> no the mast is easy to turn :-)
[15:12] <sp2ipt> ok, that's the normal /P way I do VHF/UHF and up :)
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[15:17] <dg9bfc_sigi> sp2ipt ... ready for catching (hi hi)?
[15:18] <sp2ipt> dg9bfc_sigi: always http://sztormik.com/temp/20110913062.jpg :D
[15:19] <sp2ipt> and believe you me - I've catched them a few times :)
[15:21] <dg9bfc_sigi> i believe you ... why you use horizontal and not vertical??
[15:21] <sp2ipt> dg9bfc_sigi: because that's the polarity you use for normal ssb/cw work
[15:21] <sp2ipt> dg9bfc_sigi: path losses are much lower
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[15:25] <sp2ipt> s/polarity/polarisation ;)
[15:27] <PE2G> Elevation is approaching 1 deg here, and reception is improving. I like that :)
[15:28] <PE2G> http://s7.postimg.org/60ex6m3mj/Screen1417.jpg
[15:36] <DL7AD> sp2ipt: i think i should do it the same way but unfortunately i have no car :(
[15:38] <sp2ipt> DL7AD: well everything with time :)
[15:38] <sp2ipt> DL7AD: that was my former employer car :)
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[16:09] <DL1MX_Marco> anybody knows how to activate bthe flight mode in dl-fldigi. Only see the standard QSO data
[16:10] <mfa298> If you're on windows there should be a shortcut on your desktop
[16:11] <mfa298> if it's windows/mac and your starting from a terminal use the --hab option
[16:11] <DL1MX_Marco> thanks, will try next flight.
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[16:12] <mfa298> you can start it in habmode at any time (if you've got lat/long/altitude set cuorrectly you should also appear on the map)
[16:12] <DL1MX_Marco> have lat/lon entered and are on map also uploading data
[16:13] <DL1MX_Marco> and entered the stats page :-)
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[16:23] <DL1MX_Marco> out of reception now, have a nice day
[16:25] <Willdude123> Urgg, the vox on this handy is awful
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[16:28] <Willdude123> In that you need a full blown audio assault on the VOX to activate it
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[16:29] <sp2ipt> your family will love it :D
[16:29] <Rb1203> Any news from the Bs?
[16:30] <Willdude123> sp2ipt, trying to do APRS with the audio in connected to my phone
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[16:31] <Willdude123> On the highest VOX setting, if you have the volume very loud, it works
[16:31] <Willdude123> But drops out a bit
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[16:33] <sp2ipt> Willdude123: that's a pitty. You use a dedicated mic connector in the handie, do you?
[16:34] <Willdude123> sp2ipt, yep
[16:34] <sp2ipt> Willdude123: did you put dc blocking capacitor?
[16:35] <Willdude123> Nope
[16:35] <sp2ipt> Willdude123: maybe it's just DC from handie playing trick on the headphone amp?
[16:35] <Willdude123> Perhaps
[16:35] <sp2ipt> try to put some 1uF cap and see what happens
[16:35] <sp2ipt> I'm just guessing
[16:35] <Willdude123> Not got any but I could try that.
[16:36] <Willdude123> I want something that I can get in my bag
[16:36] <sp2ipt> try some other value - it's not that critical
[16:36] <Willdude123> sp2ipt, no, no capacitors at all
[16:36] <Willdude123> sp2ipt, I think it could be that.
[16:37] <sp2ipt> ok, get something and make a test
[16:38] <Willdude123> sp2ipt, if you want listen on 145.525 on the websdr here. My internet isn't too god
[16:38] <Willdude123> *good
[16:38] <Willdude123> I don't suppose you'd mind telling me if you hear anything abnormal?
[16:39] <sp2ipt> Willdude123: give me the link :) I've got a few minutes before I go to the club
[16:39] <Willdude123> http://websdr.suws.org.uk/
[16:39] <Willdude123> I'll turn vox off for this
[16:40] <Willdude123> sp2ipt, tell me when ready
[16:40] <sp2ipt> Willdude123: ok, I'm listening
[16:41] <sp2ipt> Willdude123: once more pse
[16:42] <sp2ipt> Willdude123: it is a bit weird but it may be due to the filters in websdr
[16:42] <Willdude123> Could be. I'll try direct?
[16:42] <sp2ipt> Willdude123: ok
[16:42] <Willdude123> As in without audio cable
[16:43] <sp2ipt> Willdude123: very similar, the audio isn't distorted
[16:43] <sp2ipt> Willdude123: without cable it's a bit better
[16:43] <Willdude123> I'll try transmitting silence
[16:43] <sp2ipt> ok
[16:43] <Willdude123> I think my interwebs might be OK now
[16:45] <sp2ipt> Willdude123: there is some noise but it's not critical
[16:45] <Willdude123> It probably is a sign of something though
[16:45] <sp2ipt> possiblt
[16:45] <Willdude123> Whether it's coming from the radio or not idk
[16:45] <Willdude123> So I'll do it once with just the radio
[16:45] <Willdude123> and the cable
[16:45] <Willdude123> And then with the tablet
[16:45] <Willdude123> And then with another device
[16:46] <sp2ipt> Willdude123: it's nice and clean 50 Hz hum in the background :)
[16:47] <sp2ipt> but apart from that it's OK
[16:48] <Willdude123> sp2ipt, so I really can't tell
[16:48] <sp2ipt> Willdude123: the hum comes probably from the device itself, it's constant
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[16:48] <Willdude123> The tablet?
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[16:49] <sp2ipt> more hiss but that's all
[16:49] <DL1SGP> greetings, freq for B-50 pse?
[16:49] <sp2ipt> just poor soundcard :)
[16:49] <Willdude123> That one seemed OK
[16:49] <sp2ipt> 434,501
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[16:49] <sp2ipt> Willdude123: to be honest it is ok
[16:50] <sp2ipt> Willdude123: it's ok
[16:50] <Lunar_Lander> hello
[16:50] <DL1SGP> tu sp2ipt
[16:51] <sp2ipt> Willdude123: IMHO the sound is good
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[16:51] <Willdude123> sp2ipt, yeah.
[16:51] <DL1SGP> lovely pips :)
[16:51] <sp2ipt> last one a bit flat but rather not distorted
[16:51] <Willdude123> But VOX probably wouldn't trigger when APRS is sent
[16:51] <dg9bfc_sigi> frits ... soon receive will be lost on your side
[16:52] <DL1SGP> moin sigi, manchmal jag ich auch en sonde hat aber mein call nix mit zu tun :)
[16:52] <Maxell> Lets hope for some tropo
[16:53] <sp2ipt> Willdude123: it didn't trigger at all or just was too slow?
[16:53] <sp2ipt> Willdude123: heard some APRS packets
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[16:55] <sp2ipt> wonder if b-50 will wirvive thunderstorms http://www.blitzortung.org/Webpages/index.php - think it's slowed down considerably
[16:57] <PE2G> dg9bfc_sigi: We will not rest untill we see minus-elevations!
[16:58] <DL7AD> sp2ipt: its flying above
[16:58] <Willdude123> sp2ipt, complete ones?
[16:58] <DL7AD> sp2ipt: the top cloud layer is about 10-11km
[16:59] <sp2ipt> Willdude123: well think so :)
[16:59] <DL1SGP> Moin Sven :)
[16:59] <Willdude123> sp2ipt, that's a good sign
[16:59] <sp2ipt> DL7AD: ok, but can't it fly a bit faster? I need to go ouy to the club :)
[17:00] <PE2G> Aviation forecast for the Netherlands was CBs with tops at FL280 / 8.5 km
[17:00] <DL7AD> sp2ipt: :D
[17:00] <DL1SGP> I will point my fan eastwards sp2ipt maybe that helps :D
[17:01] <sp2ipt> DL1SGP: ok, do it please ant I'll turn on my vacuum cleaner :)
[17:01] <DL7AD> rofl....
[17:02] <DL1SGP> great plan sp2ipt
[17:02] <Willdude123> So where can I see where all the digipeaters are?
[17:04] <Lunar_Lander> at the laser
[17:04] <Lunar_Lander> hi dg9bfc_sigi
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[17:12] <dg9bfc_sigi> hi LL
[17:13] <dg9bfc_sigi> frits .. i asked you hours ago for a rocket ... if you had launched one ... we could no do other thimg GRIN
[17:13] <dg9bfc_sigi> now do other things
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[17:15] <PE2G> dg9bfc_sigi: Yeah, this hobby is far too time-consuming ;)
[17:16] <Lunar_Lander> dg9bfc_sigi, PE2G yea that is true
[17:16] <Lunar_Lander> second balloon of us is taking far too long now :D
[17:16] <DL1SGP> you gonna get there Lunar_Lander :)
[17:17] <Lunar_Lander> :)
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[17:19] <sp2ipt> ok, going to the club
[17:19] <sp2ipt> DL7AD: keep b-50 on a string till I come back Sven ;)
[17:19] <DL7AD> :)
[17:20] <sp2ipt> I've left rx running, hope it will cope with freq drift
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[17:29] <PE2G> The umpteenth thunderstorm overhead here
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[17:32] <sp2ipt> DL7AD: ok, think now I see the signal :) It's getting stronger
[17:32] <sp2ipt> but 434,500 is vy close to tcxo birdie
[17:33] <sp2ipt> bow I really have to go
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[17:41] <g0pai_ian> Willdude123 when listening for data, things like squelch need to be disabled. Let the program sort out the signal from the noise. Squelch really is just for saving human ears! :)
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[17:46] <snelly> have any of you guys played around with the 1200 baud AFSK soundmodem kernel module on Linux?
[17:47] <snelly> is it as reliable as a typical hardware TNC?
[17:51] <dg9bfc_sigi> i did not play arond in linux ... just in windows ... works fine here
[17:53] <dg9bfc_sigi> FRITS ... you can still decode?? ... distance elevation??
[17:58] <PE2G> Yes, still decoding at -0.4 deg: http://s29.postimg.org/ec9lojehz/Screen1418.jpg
[17:58] <DL7AD> sp2ipt: no sign from B-50 yet because there's a building my it's way
[18:02] Action: DL1SGP hands DL7AD his box of TNT
[18:03] Action: DL7AD will have fun with it
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[18:05] <PE2G> dg9bfc_sigi: I'm losing B-50 now. 444 km
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[18:05] <PE2G> http://s11.postimg.org/rtf0u0zvn/Screen1419.jpg
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[18:06] <dg9bfc_sigi> .... SCHNAPSZAHL FRITZ GIBT EINEN AUS
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[18:08] <dg9bfc_sigi> still good decode ... 300 km and 0.9 elevation
[18:08] <PE2G> Zum wohl!
[18:09] <Lunar_Lander> XD
[18:10] <PE2G> I'm going to take my antenna inside. Enough battering by heavy showers.
[18:10] <dg9bfc_sigi> EIN PROSIT .. ein POHOSIT DER GEMÜÜÜTLICHKEIT... c(_)
[18:11] <dg9bfc_sigi> antenna made from sugar??? will it "melt" in rain?!?
[18:12] <PE2G> dg9bfc_sigi: It could be blown off the balcony
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[18:12] <dg9bfc_sigi> ah i see ... no stormproof setup
[18:13] <Lunar_Lander> dg9bfc_sigi, ah I recall something
[18:13] <Lunar_Lander> the russians had sugar antenna clamps on the first Venus probes
[18:13] <Lunar_Lander> because if the probe would land in an ocean on Venus, the clamp would dissolve and deploy the antenna
[18:13] <Lunar_Lander> (they stopped doing that after finding no oceans on Venus)
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[18:14] <dg9bfc_sigi> haha nice idea with the antenna clamps ...
[18:14] Nick change: crash_18974_ -> crash_18974
[18:14] <Lunar_Lander> yea :D
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[18:36] Nick change: Upu -> UpuWork
[18:38] Nick change: Upu_M0UPU -> UPu
[18:38] Nick change: UPu -> Upu
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[18:41] <jiffe98> so when I look at aprs.fi searching for m0xer-7 and show telemetry it shows Project: B-47, where's that coming from? decoding the raw aprs doesn't seem to show that
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[18:58] <mikestir> snelly: I have an APRS igate set up for rx only using soundmodem. It doesn't seem very sensitive but it does work.
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[18:59] <Upu> mikestir could I interest you : http://i.imgur.com/BwM5CX5.jpg
[19:00] <nats`> Upu why it's not at the end of the antenna ? :)
[19:01] <chrisstubbs> N to BNC to SMA ;)
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[19:02] <Upu> because I need to transmit via that :)
[19:02] <Upu> well
[19:02] <Upu> worse chrisstubbs
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[19:02] <Upu> PL259->BNC->SMA :)
[19:02] <chrisstubbs> blergh
[19:02] <Upu> works though
[19:03] <mikestir> Upu: might be an idea. It doesn't seem to decode quite a few packets even though they are perfectly clear to the ear, so I think a proper TNC would be the first improvement
[19:03] <Upu> http://aprs.fi/#!v=heard&call=a%2FM0UPU-1&timerange=3600&tail=3600
[19:03] <Upu> Well I'm using one of these : ( 1sec)
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[19:03] <Upu> http://tnc-x.com/TNCPi.htm
[19:03] <chrisstubbs> Could be worse https://pbs.twimg.com/media/BclJ-wiIEAA4Y2w.jpg
[19:04] <Upu> the design is bollocks and the DB9 header shorts out on the Pi's USB
[19:04] <Upu> but it works really well
[19:04] <Upu> hah nice old school revision 1 habamp :)
[19:04] <chrisstubbs> And classic plier crimped SMA connectors :P
[19:05] <Upu> and a classic example of why RTL's are rubbish for tracking in the field
[19:05] <DL7AD> the power of contestia! http://puu.sh/8FDMa/4271a8038e.png
[19:05] <Upu> I love the donor ezcap providing power too :)
[19:06] <Upu> yeah its ace DL7AD
[19:06] <Upu> however your distance is lying
[19:06] <DL7AD> there's a building between (10° angle high)
[19:06] <chrisstubbs> haha I get worried about the PP3 clip soldered to the GND and VCC of the usb port shorting out if its just jangling around
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[19:08] <mikestir> I was hoping to get some thor or contestia on the go this weekend, but fedex appeared to have made my mouser order get further away again :(
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[19:20] <SA6BSS> Anyone got a exact freq on b50?
[19:20] <dg9bfc_sigi> fading out slowly 380 km 0.0 degrees elevation
[19:21] <dg9bfc_sigi> 434.500 usb and you sould hear the pings
[19:21] <SA6BSS> 434 @ freq on dl fldigi?
[19:21] <SA6BSS> *434.5
[19:22] <Seejjay> Upu: Is there anywhere I can find the specs forominoEX and Contestia?
[19:22] <Seejjay> I seem to be able to find lots of sites showing what they are, but not what the actual spec is.
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[19:23] <Seejjay> * foromino - Domino
[19:24] <Maxell> http://www.qsl.net/zl1bpu/MFSK/Technical.htm might help
[19:25] <x-f> has anybody an updated prediction for B-50 at least for the next 12 hours?
[19:25] <x-f> i've lost the correct hysplit link
[19:29] <dg9bfc_sigi> frequency slowly going down ... now 434499.7 (with audio around 960hz)
[19:30] <dg9bfc_sigi> last decode 390 km ... elevation -0.0
[19:30] <dg9bfc_sigi> comin clos to LOS
[19:32] <dg9bfc_sigi> 395km elevation -0.1 ... and still decoding :-)
[19:34] <Upu> x-f http://ready.arl.noaa.gov/hypub-bin/trajtype.pl
[19:35] <SA6BSS> dg9bfc_sigi: tnx
[19:35] <SpeedEvil> dg9bfc_sigi what altitude are you at?
[19:35] <x-f> Upu, thanks
[19:36] <LeoBodnar> x-f: next 24 hours http://ready.arl.noaa.gov/hypubout/121939_trj001.gif
[19:36] <Upu> Seejjay another source is look at the source code for dl-fldigi
[19:36] <Upu> could be worse
[19:37] <x-f> cheers, LeoBodnar
[19:38] <dg9bfc_sigi> elevation here ... very low (35m asl) ... antenna used now is my stacked vertical (abt 5m over ground level)
[19:38] <Seejjay> :lol I did wonder, but hoped not! I'll have a go next week. (I do control systems, not windows stuff!)
[19:39] <Seejjay> (for windows read PC!)
[19:39] <LeoBodnar> 1% relative humidity lol
[19:39] <Upu> dl-fldigi runs on Linux, Windows and Apple
[19:39] <LeoBodnar> what a pleasant change
[19:39] <Upu> you should be fine then Seejjay :)
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[19:40] <dg9bfc_sigi> 404km ... elevation -0.1 ... and still counting :-)
[19:40] <dg9bfc_sigi> thats incredible for such a low signal and only a vertical used
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[19:44] <aadamson> So I ran some test today on putting the GPS to sleep and then how long before you got lock and sats > 3 once you turned it back on... More in a sec gotta go retrieve my science experiment before it pours here...
[19:47] <aadamson> Ok, back.
[19:47] <DL1SGP> thanks for B-50 Leo :)
[19:47] <aadamson> Over an hour of the above tests I found that with the setup that I'll provide in a minute, that within 3 seconds on average after repowering the gps, I had lock and sats > 3
[19:47] <aadamson> http://www.evernote.com/shard/s159/sh/e802e6b1-cf7e-4636-abda-38c695e464a0/10477000dc2fee1cce6d31d9dffb8f26
[19:47] <dg9bfc_sigi> ok ... i am out of here with trackin ... los of signal
[19:48] <aadamson> it's not much as far a code goes, but it at least documents how I'm doing it
[19:48] <aadamson> and the results look really good
[19:48] <DL1SGP> no worries sigi :) other balloons will come by
[19:48] <aadamson> I basically am beaconing on a 2 min interval and 30 seconds before I beacon I turn back on the gps. If it's setup as noted above
[19:49] <aadamson> and it has a good solution (notes in document above), then within 3 seconds of turning it back on, I'm locked again
[19:49] <aadamson> I wanted to see how short of a *window* I could go too so I put a counter in my code that counted seconds from turnon til loc
[19:50] <aadamson> and I got mp3-37's to play with today and *no* sun :(
[19:54] <SpeedEvil> A stack of diodes, with a current source in parallel with them pretty closely matches a solar panel
[19:57] <aadamson> I have the panel, I need the sun (ok a light will work for now) :)
[19:58] <aadamson> for just the pv voltage I can use a single AAA batt, Leo showed me that trick
[19:58] <aadamson> I want to play with some new solar cells... on the pv1040
[19:58] <aadamson> that I need sun for (or a strong light)
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[20:00] <SpeedEvil> aadamson: A constant current source in place of the sun woks
[20:00] <SpeedEvil> in parallel with the panel
[20:00] <SpeedEvil> It's 99% accurate
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[20:01] <aadamson> SpeedEvil, yep, understood, but in this case I know the pv1040 works, I just want to characterize the panel is all
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[20:20] <dg9bfc_sigi> i am out of here ...,
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[20:30] <sp2ipt> DL7AD: and my sdr hanged ;)
[20:31] <DL1SGP> well it is better if you hang it than guillotine it :)
[20:31] <sp2ipt> yep :)
[20:31] <DL1SGP> are you using an rtl-sdr or fcd (pro/proplus) ?
[20:33] <sp2ipt> realtek + e4000 + my own freq standard (14,4 MHz meiden TCXO + ICS511 multiplier)
[20:33] <sp2ipt> I'm not sure if it's win 7 problem or the freq standard sometimes goes banannas
[20:34] <sp2ipt> but I'd rather buy dedicated 28,8 MHz TCXO and put it just in the dongle
[20:35] <sp2ipt> and don't think you can use one crystal for dongle and hf upconverter :/ birdies are everywhere
[20:35] <DL1SGP> well you could try reducing laod by not using the full bandwidth the dongle could do for a relatively narrow signal, I always keep it down as much as I can when decoding stuff, also check if changing the speeds of potential waterfalls and the adjustment of fft resolutions are doing good stuff, such rendering stuff in apps like SDR# can be processing heavy
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[20:36] <Upu> sp2ipt I have some 28.8 TCXO's
[20:37] <Upu> couldn't get htem working with the dongle
[20:37] <sp2ipt> Upu: I got mine working but there are tons of birdies :/
[20:38] <Upu> birdies ?
[20:38] <sp2ipt> probably will have to buy 28,8
[20:38] <Upu> mail me your address I'll post you one
[20:38] <sp2ipt> yes somehow I see _lots_ of harmonics from 14,4MHz
[20:38] <Upu> PM'd e-mail
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[20:40] <sp2ipt> rr :)
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[20:59] <sp2ipt> I've connected TR-851, tcxo in rtlsdr killed usable signal :|
[21:01] <aadamson> upu, you around?
[21:02] <aadamson> quick question, did you have to do anything to use one of the powerfilm cells as far as your pv controller circuit goes?
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[21:15] <sp2ipt> it's not SDR, just normal TRX has *way* better performance... ISM band sucks :/
[21:17] <adamgreig> hey Laurenceb__, chibios or freertos?
[21:20] <Laurenceb_> chibios all the way
[21:21] <Laurenceb_> nice HAL and lots of forums and stuff
[21:25] <adamgreig> sweet
[21:25] <adamgreig> think what I'm working on now wants an rtos
[21:26] <adamgreig> only vaguely toyed with chibios before but it was nice then
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[21:28] <DL7AD> sp2ipt: got the singal back. just soldered a new more efficient cable (which is longer too) and put my tripod to another level of my house :D
[21:30] <sp2ipt> DL7AD: good, I've just thrown away 70cm band filter out of the rx chain. Too high altitude so signal is weak and is vy close to some qrm source
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[21:30] <mikestir> adamgreig: +1 for chibios
[21:30] <adamgreig> cool. any top tips?
[21:30] <DL7AD> sp2ipt: no qrm at all :D
[21:31] <sp2ipt> lucky you :)
[21:31] <mikestir> I haven't done that much with it, but it was very easy to get a lot done quickly iirc
[21:31] <mikestir> I used it to put together an ISM band to MQTT gateway
[21:31] <sp2ipt> last weekend I did just show in IARU region 1 contest on VHF+ and noticed I get horrible noise on 70 cm in ssb part :/
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[21:32] <DL7AD> sp2ipt: saved a lot of rg174 now. just got rg58. not ideal but rg213 would be too heavy for my "portable" actions
[21:33] <sp2ipt> DL7AD: have a look at rg-142 if you cn afford it it'll be a good investment
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[21:34] <sp2ipt> DL7AD: it's a cable designed rather for power but it's PTFE so will be better than PE
[21:35] <DL7AD> sp2ipt: is there a comparisation table for rg58 and rg142?
[21:35] <sp2ipt> DL7AD: probably not, they have the same diameter but it's a different class of cables :)
[21:36] <sp2ipt> DL7AD: lemme do a quick dig
[21:38] <sp2ipt> DL7AD: cable losses per 100m 0,6GHz RG58: 50dB RG-142: 35dB
[21:39] <sp2ipt> DL7AD: look for datasheets - I've taken mine from huber suhner
[21:39] <DL7AD> :D i think i would need rather a preamplifier
[21:40] <DL7AD> that could do the job
[21:41] <DL7AD> anyway.... my flat sucks....
[21:41] <sp2ipt> probably :) It's not that hard to make one :)
[21:41] <sp2ipt> at least theoretically, I've had problems with stability :D
[21:41] <DL7AD> sp2ipt: i got the pcb but not the components...
[21:41] <sp2ipt> that's a start :)
[21:43] <DL7AD> its raining here in berlin.i cant see the dots anymore.....
[21:44] <sp2ipt> it shifted 200-300Hz down
[21:46] <DL7AD> yes no problem for me
[21:46] <DL7AD> but its almost faded out for me
[21:51] <sp2ipt> DL7AD: it's like this now http://sztormik.com/temp/b-50.jpg
[21:51] <sp2ipt> and I'd say this time signal was good
[21:52] <DL7AD> yes but dlfldigi can handle that
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[21:52] <sp2ipt> no it can't :P
[21:52] Nick change: zooto68 -> Earthshine
[21:53] <sp2ipt> if I connect antenna to SDR I get no baloon reception now :/
[21:53] <sp2ipt> so there's no way fldigi can cope with that :)
[21:53] <Earthshine> Evening
[21:54] <DL7AD> Earthshine: good evening
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[21:54] <DL7AD> sp2ipt: did you change your synchronizing settings?
[21:54] <sp2ipt> I'm using preamplifier on MGA71543 (abt. 10 dB gain on 70 cm) and had to throw away bandpass filter to get that 1,5 dB
[21:54] <sp2ipt> DL7AD: no, I've set 8/250 and that's all
[21:55] <DL7AD> click CTSTIA 8/250 at the lower left corner
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[21:55] <DL7AD> click "Custon..."
[21:55] <sp2ipt> didn't have time to read how contestia works so just played safe
[21:55] <DL7AD> change Tune margin to 16
[21:56] <sp2ipt> integration period? standard?
[21:56] <DL7AD> ? where do you read this?
[21:57] <DL7AD> http://puu.sh/8FRd9/0ce2843665.jpg click custom
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[21:57] <DL7AD> http://puu.sh/8FReK/30941e924a.png then change Tune margin to 16
[21:57] <Maxell> DL7AD: I have it set to 32 also works as long as it's the onlt contestia signal in the signal
[21:58] <DL7AD> Maxell: okay. is this a compromise?
[21:58] <sp2ipt> DL7AD: read the name of the second option :)
[21:59] <DL7AD> integration period? so what?
[21:59] <sp2ipt> I wanted to know if there are better settings than standard :)
[21:59] <DL7AD> yes there are
[22:00] <sp2ipt> rain came here too - signal got weaker :/
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[22:01] <DL7AD> sp2ipt: the rxid doesnt work anymore
[22:02] <Maxell> DL7AD: No.
[22:02] <Maxell> Tune margin (Search) and Integration period (Sync). Instead of none, high, and low, FLDigi uses a scale that goes from 2 to 128 on both settings. The default is 8 for Tune margin and 4 for Integration period. This is adequate for most standard Olivia configurations BUT higher settings for Integration period (Search) may be required when signalss are extremely weak OR running NON standard Olivia configurations that are faster like 250/4, 500/4, 500/8
[22:02] <Maxell> http://www.oliviamode.com/gettingstartedolivia.htm
[22:02] <Maxell> This information about olivia also works for contestia.
[22:03] <DL7AD> Maxell: so what configuration would you recommend now?
[22:03] <sp2ipt> Maxell: thanks
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[22:05] <DL7AD> the signal went better. got another packet
[22:06] <Maxell> DL7AD: I use 32 and it worked fine. I havn't done any scientific measurements.
[22:06] <DL7AD> Maxell: ah cool thanks :)
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[22:25] <sp2ipt> sleep time, night all
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[22:39] <g0pai_ian> RSiD/RSiD seems to depend upon a mode identification burst ahead of the transmisstion of data mode proper. Is there a code example or documention describing the makeup of this burst at all and if so can someone give me a pointer?
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[22:42] <Willdude> I got one packet digipeated today!
[22:42] <Willdude> I'll be operating GB1WW tomorrow afternoon, not sure which bands.
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[22:45] <g0pai_ian> Is that an amateur radio special event station GB1WW and what does the WW signifiy?
[22:46] <craag> mills on the air this wkend I believe
[22:47] <craag> (gave a hab talk to a local ham club this evening so know a little popular-ham news for once)
[22:47] <g0pai_ian> Thanks Phil, it's been a while since I have taken part in SES. Used to run a lot with West Bromwich Central a few years ago now.
[22:47] <g0pai_ian> I take it that the talk went down well and that most were amazed at the distance that 10mW would realise at altitude?
[22:48] <craag> absolutely
[22:48] <g0pai_ian> On both counts ! :)
[22:48] <craag> the idea of extreme cold and ~zero atmosphere really caught people's imagination
[22:48] <craag> but yes, the ssdv demo raised many eyebrows
[22:49] <nats`> good night boyz !
[22:50] <g0pai_ian> SSTV on steroids . . . good night Nats
[22:54] <Reb-SM3ULC> darn, b50 turning towards home and i'm pretty far aaway
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[23:16] <Laurenceb_> n00b question
[23:16] <Laurenceb_> running a linear FIR filter in dB space then converting back to amplitudes is different to running it in amplitude space?
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[23:21] <adamgreig> yea
[23:21] <adamgreig> stands to reason
[23:21] <adamgreig> db-amplitude is a non linear transform in general so
[23:22] <adamgreig> even with the coefficients suitably adapted it's not gonna be the same thing
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[23:28] <Laurenceb_> that was my conclusion
[23:29] <Laurenceb_> im trying to filter out noise from a signal, where the noise is biased in the positive direction
[23:29] <Laurenceb_> i think i can log the data then low pass and exp it
[23:30] <Laurenceb_> the noise is bursty, so low pass on the raw data tends to give big upward wobbles
[23:32] <g0pai_ian> Not something that I know anything at all about, but with the orginal signal captured, then you can run as many scenarios against it as you with until you find the magic mix. I guess that what you want is an adaptive filter and at least by doing it in batch -
[23:33] <g0pai_ian> you get to keep the original sample for further attempts. Once it's working in batch then you have something that you can make real time.
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[00:00] --- Sat May 10 2014