highaltitude.log.20161125

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[03:20] <SpacenearUS> New position from 03WB8ELK-2 after 032 days silence - 12https://tracker.habhub.org/#!qm=All&q=WB8ELK-2
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[04:05] <SpacenearUS> New position from 03HIRFW-3 after 037 days silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-3
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[08:59] <AndyEsser> aww - can't access my pi :(
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[09:39] <SpeedEvil> AndyEsser: It's a bigger problem - I can't access your pi either.
[09:41] <AndyEsser> SpeedEvil: :)
[09:41] <AndyEsser> I did ask someone to test ssh last night to check it worked
[09:41] <AndyEsser> and forgot it was the default password for the pi user
[09:41] <AndyEsser> so he spammed me a bunch of broadcast messages
[09:42] <SpeedEvil> oops :)
[09:42] <AndyEsser> it has since been changed :P)
[09:43] <AndyEsser> but didn't get around to getting anything set up on it last night anyway for tracking
[09:43] <AndyEsser> the airpsy works, I know that much
[09:43] <AndyEsser> since airpsy_info and airspy_rx now work on it
[09:43] <AndyEsser> but nothing to actually take the info from it and demod
[09:43] Action: AndyEsser really needs to finish his commandline RTTY demod....
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[09:52] <SpacenearUS> New vehicle on the map: 03GKCDNB - 12https://tracker.habhub.org/#!qm=All&q=GKCDNB
[09:52] <Vaizki> AndyEsser, did you check out csdr?
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[09:54] <Vaizki> in addition to a library, there's a bunch of ready-made command line tools there to do for example ssb demod
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[10:06] <AndyEsser> Vaizki: I loaded the page but not much more
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[10:11] <Vaizki> I understand you are unsatisfied with anything you haven't coded yourself.. but I still recommend GCC as a compiler and the linux kernel at least ;)
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[10:12] <daveake> I rerwote teh frimware in my kyebaord
[10:14] <AndyEsser> Vaizki: I use clang, not gcc
[10:15] <Vaizki> :(
[10:15] <michal_f_wrk> AndyEsser: were you able to pull off 10MSPS with rpi3 ?
[10:16] <AndyEsser> michal_f_wrk: have literally done nothing other than check that the airspy responds
[10:16] <AndyEsser> will take it to gf's this weekend to tweak more
[10:16] <AndyEsser> means using the shitty monopole antenna that came with my original RTL SDR though
[10:16] <AndyEsser> not my much nicer antenna at home :(
[10:16] <michal_f_wrk> I had mixed experience with 10MSPS. Odroid xu4 does better here :)
[10:17] <Vaizki> airspy mini and 6MS/s works fine on rpi3
[10:17] <AndyEsser> does the normal airspy support 10MSPS? thought it was about 6 and the mini _could_ do 10 but gets rather warm
[10:17] <AndyEsser> (or have I got those the wrong way around?)
[10:17] <Vaizki> yes it does.. R0 and R2 support 10MSPS
[10:18] <AndyEsser> cool :)
[10:18] <AndyEsser> michal_f_wrk: I shall report back when I manage to try :)
[10:18] <Vaizki> but as michal_f says, on a rpi3 it's really pushing it to do anything with it
[10:18] <AndyEsser> I'll just buy more :)
[10:19] <AndyEsser> and have 50x 6MSPS :)
[10:19] <Vaizki> you can maybe grab raw samples and stream them out to another box.. but if you want i/q out then libairspy is going to do the math and at 10MSPS the rpi3 will struggle
[10:19] <AndyEsser> hmm.. my RTTY demod is setup to receive IQ streams and process them
[10:19] <AndyEsser> had hoped that'd take almost all the load off the SDR hardware
[10:20] <Vaizki> umm what the airspy does is read ADC samples via DMA into a buffer and blast them out over USB
[10:20] <Vaizki> that's about it
[10:21] <Vaizki> it doesn't do any processing on them except optionally packing 4x12bits -> 3x16bits
[10:21] <AndyEsser> hmm ok
[10:21] <Vaizki> everything else happens on the host computer side
[10:21] <AndyEsser> yea makes sense
[10:21] <AndyEsser> derp
[10:21] <AndyEsser> sorry
[10:21] <prog> mind you, the most efficient way is to use real samples in your demod directly
[10:21] <AndyEsser> prog: do you have a notifier set up for the word airspy?
[10:22] <Vaizki> yea for rtty probably
[10:22] <Vaizki> hehe
[10:22] <prog> that's how the ADSB decoder manages to work in a RPI at 20msps
[10:22] <Vaizki> prog is easier to reach here than on #airspy :D
[10:22] <AndyEsser> :)
[10:22] <prog> I keep an eye on IRC
[10:23] <AndyEsser> hmm, I'll continue my IQ route for now
[10:23] <AndyEsser> and then look at making an Ingest module that uses real samples
[10:23] <prog> there are a few tricks you can do to lower the cpu load
[10:23] <Vaizki> well you don't need 10MSPS for rtty demod..
[10:23] <prog> that
[10:23] <prog> first, use the 2.5msps mode
[10:23] <AndyEsser> Vaizki: sure, but the code is/will be written in a way that it's not just for RTTY demod
[10:24] <prog> you won't need that much of bandwidth
[10:24] <Vaizki> just telling you that on a rpi3 running full 10MSPS with i/q output from airspy_rx or the lib.. cpu saturation. samples lost.
[10:24] <AndyEsser> once I figure out why it's not working with my test audio sample :(
[10:24] <AndyEsser> Vaizki: o yea, I know :)
[10:24] <AndyEsser> but again, not confined to Pi3 :)
[10:24] <AndyEsser> prog: ALL OF TEH BANDWIDTH
[10:25] <Vaizki> ok, sure, then fire away
[10:25] <AndyEsser> let me walk before I can run :P
[10:25] <prog> okey. you seem to know what you are doin
[10:25] <AndyEsser> prog: ha
[10:25] <prog> is this a multi band multi channel thing?
[10:26] <Vaizki> walk before run = grab csdr and try to build some demod pipelines with it :)
[10:26] <Vaizki> it's quite educational and nice for quickly hacking together somethign
[10:26] <AndyEsser> Vaizki: yes, in the interim I will get something together to use the pi and airspy for tracking and RTTY demod
[10:26] <prog> how many channels?
[10:27] <AndyEsser> prog: current plan is basically just removing the need for dl-fldigi :)
[10:27] <AndyEsser> prog: just 1
[10:27] <prog> okey. make the sample rate and the IQ conversion configurable
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[10:27] <Vaizki> actually.. https://github.com/simonyiszk/csdr/issues/13
[10:27] <AndyEsser> prog: was going to make it as configurable as possible
[10:27] <Vaizki> some nice rtty airspy csdr groundwork there
[10:28] <AndyEsser> in fact, the final design after the prototype will effectively just be a bunch of classes that you can chain together to do as you please
[10:28] <AndyEsser> but is smarter about threading/memory than fldigi
[10:28] <AndyEsser> if I take it any further, we'll see - but for now, I just wanted something to replace fldigi, and could just sit running on the commandline nice and easily
[10:28] <Vaizki> did you ever read fldigi source code?
[10:28] <AndyEsser> I've been told on a number of occasions not to :P
[10:29] <Vaizki> that's right.. :)
[10:29] <AndyEsser> fsphil has been extremely helpful with the theory behind doing the demod
[10:29] <AndyEsser> and in gnuradio prototyping it out, it worked great
[10:29] <michal_f_wrk> AndyEsser: what's your setup for RTTY demod now ?
[10:29] <AndyEsser> but when I tried to do it in C/C++ it failed :(
[10:29] <AndyEsser> and then tried to do it in python so I could make use of plotlib to see the output at various stages, and it wasn't quite right either
[10:29] <prog> btw, libairspy was optimized quite a bit since that post
[10:29] <AndyEsser> so I'm missing something somewhere
[10:29] <michal_f_wrk> I have csdr doing demodulation, but don't know how to decode RTTY withoud fldigi
[10:30] <AndyEsser> michal_f_wrk: when on Windows (currently only way I've received RTTY) it was either SDR# or SDR Console, with audio piped to dl-fldigi
[10:30] <AndyEsser> the simplest setup
[10:30] <prog> a command line utility that takes the IQ from stdin would be nice
[10:30] <prog> useful for all
[10:31] <michal_f_wrk> for me, definitely
[10:31] <Vaizki> how are you doing the demod? same as fldigi with the input being split into mark & space baseband signals, then filtered and a simple detector for both separately?
[10:31] <AndyEsser> prog: easy enough with the way I was writing the code - the way the IQ is ingested is pretty open, so atm was just doing audio (basically to replicate dl-fldigi)
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[10:32] <AndyEsser> but could easily take input from a file
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[10:32] <AndyEsser> or stdin
[10:32] <AndyEsser> or eventually was going to use libairspy for airspy, or others for getting data 'direct' from the SDR hardware
[10:32] <AndyEsser> Vaizki: o god, let me remember - been a few months
[10:32] <AndyEsser> in fact, think the code is around somewhere
[10:32] <AndyEsser> two secs
[10:33] <Vaizki> http://www.w7ay.net/site/Technical/ATC/
[10:33] <AndyEsser> https://github.com/OrbitalTechnology
[10:33] <Vaizki> that's the fldigi approach.. although originally they implemented a range ATC models, all but one are now disabled in fldigi
[10:33] <Vaizki> orbitalwhat
[10:34] <AndyEsser> can't remember exact specifics without diving back into the code or my notes
[10:34] <AndyEsser> but basically mixed in the centre freq
[10:34] <AndyEsser> to get postive+negative frequencies either side where it was 1's and 0's
[10:34] <AndyEsser> or something along those lines...
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[10:35] <AndyEsser> Vaizki: looking at it
[10:35] <AndyEsser> that's not anywhere near the latest version of the code...
[10:35] <Vaizki> ok so not the same demod
[10:36] <AndyEsser> brb
[10:37] Nick change: SpeedEvil -> Guest21399
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[10:43] <AndyEsser> back
[10:47] <Vaizki> would probably make sense to make a generic AFSK/MFSK demodulator to support contestia/olivia also.. but it's a bit more involved than rtty (2afsk)
[10:48] <AndyEsser> Vaizki: yea, the whole plan was to handle FSK variants to extend it
[10:48] <AndyEsser> but... baby steps
[10:54] <fsphil> small moves, ellie
[10:56] <PE2BZ> baby steps, GF ? Anything else we should know about ?
[10:58] <fsphil> https://www.youtube.com/watch?v=oB6NNbFHjCc
[11:01] <fsphil> I'm reading the book atm, good stuff
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[11:08] <SpacenearUS> New position from 03IV3SRD-11 after 0310 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11
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[11:10] Nick change: BitEvil -> speedevil
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[11:15] <SpacenearUS> New vehicle on the map: 03X0 - 12https://tracker.habhub.org/#!qm=All&q=X0
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[12:00] <SpacenearUS> New vehicle on the map: 03M10WX-11 - 12https://tracker.habhub.org/#!qm=All&q=M10WX-11
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[12:09] <AndyEsser> PE2BZ: hmm?
[12:09] <AndyEsser> fsphil: I think about this movie every few months, should really watch it sometime...
[12:10] <fsphil> I've had the book for a while now, only just started reading it
[12:15] <SpacenearUS> New vehicle on the map: 03M10WX-11 - 12https://tracker.habhub.org/#!qm=All&q=M10WX-11
[12:16] <Upu> this is mode1 for Xaben ?
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[12:18] <daveake> mode 0
[12:21] <Upu> wondering if I've left my gateway unplugged
[12:21] <Upu> from antenna
[12:22] <AndyEsser> that would be bad
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[12:31] <Andrew_M0NRD> this is fun, got filters wide so has chance to AFC on next RTTY Tx ;-)
[12:31] <SpacenearUS> New vehicle on the map: 03HB9FDK-1 - 12https://tracker.habhub.org/#!qm=All&q=HB9FDK-1
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[12:46] <Geoff-G8DHE> !dial x0
[12:46] <SpacenearUS> 03Geoff-G8DHE: Latest dials for 03X0 10(fee2): 03434.405536 MHz, 434.406102 MHz, 434.45 MHz, 434.407 MHz, 434.4054 MHz, 434.40598 MHz
[12:46] <AndyEsser> o no....
[12:46] <AndyEsser> Black Friday deals email from Rigol...
[12:47] <fsphil> I've filtered out the phrase. my spam folder is counting up nicely
[12:47] <AndyEsser> 10% off Power Supplies...
[12:48] <AndyEsser> only the DP700 series though
[12:48] <AndyEsser> 15% off a SigGen...
[12:49] <AndyEsser> eww... maximum frequency 25MHz
[12:49] <speedevil> rigol also has a 'refurb' wing
[12:49] <speedevil> http://www.rigol.eu/clearance/
[12:49] <AndyEsser> o no
[12:49] <AndyEsser> bad speedevil
[12:49] <speedevil> :)
[12:50] ddfdgf (52288dfc@gateway/web/freenode/ip.82.40.141.252) left irc: Quit: Page closed
[12:50] <mattbrejza> max 25MHz is pretty common for DAC based siggens
[12:50] <AndyEsser> they've got a 100MHz one on the clearance
[12:50] <mattbrejza> its really an arbitary waveform gen
[12:50] <AndyEsser> 1820 euroes
[12:50] <AndyEsser> yea... no
[12:51] <speedevil> they do have pretty deep discounts on the cleaneance stuff though - which is nice
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[12:52] <speedevil> I got a couple of amazon dots
[12:53] <AndyEsser> dots?
[12:53] <AndyEsser> or dashes?
[12:53] <speedevil> echo dot
[12:53] <AndyEsser> o
[12:53] <speedevil> It's like the amazon echo, but with no speaker, for a third of the price.
[12:53] <speedevil> And well - 80 quid for a 3" speaker - no
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[12:56] <Upu> lol
[12:57] <Upu> misdirected lol pls ignore
[12:58] <speedevil> lol
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[13:05] <Vaizki> cue the lollercopter
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[13:27] number10 (569e9aae@gateway/web/freenode/ip.86.158.154.174) joined #highaltitude.
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[13:43] <udat> scramble to set up there
[13:43] Laurenceb__ (~laurence@host86-169-229-78.range86-169.btcentralplus.com) joined #highaltitude.
[13:44] <udat> doesn't matter how many antenna adapters you have you never have the ones you need to hand
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[13:58] <Ian_> I had a bit of gymnastics to get from SO239 to SMA. Doesn't seem to be doing as well as I feel it should, given the range, G0PAI to X0. a little disappointed as I felt that it should have been a bit of a given.
[14:02] <udat> found the adapter eventually, attached to a bit of cable in the garage
[14:03] <udat> was splitting to get lora+rtty
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[14:03] <udat> lora working a lot better unsurprisingly
[14:04] <udat> last partial rtty at 23k, just got lora there at 12616
[14:07] <Ian_> What's a good rssi figure range for LoRa? Currently in range -109 to -112
[14:08] <g8fjg> snr8 rssi-103 ish here
[14:09] <g8fjg> here it depends how much qrm I get on 434.400
[14:10] <Ian_> I hope that you are having more luck than I am :) Should be falling down the antenna at the moment. Too late in flight to start thinking about adding a preamp.
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[14:10] <Ian_> Hadn't thought about that, the LoRa is using the main stn antenna, so I'm temporarily deaf
[14:10] <g8fjg> decoded 190 packets sofar
[14:11] <AndyEsser> I should really think about a preamp...
[14:11] <AndyEsser> although I have a lot of QRM on 434 around mine :(
[14:12] <pb0ahx> X0 Team mni tnx for nice flight
[14:12] <g8fjg> remember I'm running a 14 ele @15mts and 0.5 nf preamp
[14:13] <g8fjg> qrm stopped now for a while
[14:13] <udat> -128 just now
[14:13] <Ian_> 5 packets since restarting half an hour ago. Lots of crc errors. Watson W300 barefoot at 10m or so
[14:13] <AndyEsser> hmm, moving my antenna to the bangor office would be a bit useless.... little thing called Snowdonia getting in the way...
[14:13] <udat> still working and outside the blue circle
[14:13] <udat> can't even see it on waterfall in fldigi
[14:14] <AndyEsser> nice
[14:14] <AndyEsser> grr, really should've gotten my airspy up and running, nice inside the green circle for me
[14:15] <g8fjg> the lora is quite faint on w/f
[14:15] <udat> yeah, not seeing thg the carrier or rtty either
[14:15] <udat> and another
[14:16] <udat> quite surprised it's still tracking
[14:17] <udat> http://i.imgur.com/4J5MxHt.jpg
[14:17] <udat> the best setups are made on the floor in 5 minutes after you realise there's a launch up
[14:17] <udat> :)
[14:18] <AndyEsser> nice labeller
[14:18] <AndyEsser> I miss my old one from my last job
[14:18] <AndyEsser> should order one...
[14:19] <udat> yes, everyone needs one, couldn't live without
[14:19] <udat> I'd be unplugging the wrong things constantly
[14:19] <udat> :)
[14:19] <AndyEsser> heh
[14:25] <fsphil> the dymo labels we have always seem to fall off after a while
[14:25] <fsphil> I've been meaning to get one of the heatshrink versions
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[14:29] <g8fjg> 10 km past blue line got a lora decode snr-13 rssi-118
[14:31] <daveake> We're on the wrong side of our hill for that direction
[14:31] <AndyEsser> stupid hills
[14:31] <daveake> Even the Clark at full extent wasn't enough
[14:32] <tweetBot> @daveake: Clark mast at its full extent for @G8KHW's HAB flight today. #ukhas https://t.co/tBwxZDdpnO
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[14:35] <daveake> Steve is still rxing
[14:35] <dbrooke> my last one (G6GZH) was SNR = -14, RSSI = -121
[14:38] <g8fjg> just remembered to update to 1.8.6
[14:38] <g8fjg> afk
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[14:49] <daveake> well that looks like an easy recovery
[14:50] <Ian_> Seems that I copied to 2132m. I'll analyse my performance or lack thereof later - shoppings >>
[14:51] <AndyEsser> Worf!!
[14:51] <AndyEsser> sham it didn't land at Cosford
[14:57] <Vaizki> re labelers.. I'm a Brady man myself
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[15:16] <RocketBoy> xaben-107 recovered - chees guys
[15:17] <AndyEsser> \o/
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[15:44] <AndyEsser> eurgh, is it hometime yet?
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[15:51] xfce (~iposi3@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude.
[15:52] Nick change: xfce -> Guest18740
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[16:21] <SpacenearUS> New vehicle on the map: 03AVA-rs41 - 12https://tracker.habhub.org/#!qm=All&q=AVA-rs41
[16:29] <Ian_> 78 packets and 2%. Not glorious, given my proximity, but That's my Habitat duck well and truly broken. :) I'm obviously a slow burn type!
[16:29] <Ian_> Now to consolidate.
[16:40] rubdos (~rubdos@ptr-2hj4tbiko60765s1693n9l8p8.ip6.access.telenet.be) joined #highaltitude.
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[17:25] <cm13g09> mfa298: ping
[17:25] <mfa298> cm13g09: pong
[17:54] <SpacenearUS> New vehicle on the map: 03CP1 - 12https://tracker.habhub.org/#!qm=All&q=CP1
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[18:13] gb73d (~gb73d@host-92-24-43-10.ppp.as43234.net) joined #highaltitude.
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[18:57] <SpacenearUS> New position from 03HIRFW-6 after 0316 hours silence - 12https://tracker.habhub.org/#!qm=All&q=HIRFW-6
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[19:48] <SpacenearUS> New vehicle on the map: 03SUSF - 12https://tracker.habhub.org/#!qm=All&q=SUSF
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[20:01] Nick change: speedevil -> SPEEDEVIL
[20:02] Last message repeated 1 time(s).
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[20:13] <SpacenearUS> New position from 03GKCDNB after 037 hours silence - 12https://tracker.habhub.org/#!qm=All&q=GKCDNB
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[20:21] <OZ1SKY_Brian> ge
[20:24] SP9UOB-Tom (~verox@matrix.verox.pl) joined #highaltitude.
[20:24] <SP9UOB-Tom> evening All
[20:24] <SP9UOB-Tom> ping Upu
[20:25] <OZ1SKY_Brian> Hi Tom. Tropo >G
[20:25] <Upu> hey tom
[20:25] <SP9UOB-Tom> OZ1SKY_Brian: 70 cm ?
[20:26] <OZ1SKY_Brian> yes just had a go to IO93 #
[20:28] OZ7EMA (~emanuel_@78.6.148.194) joined #highaltitude.
[20:28] <SP9UOB-Tom> OZ1SKY_Brian: 293 deg
[20:28] <SP9UOB-Tom> My is JO90HG
[20:30] <OZ1SKY_Brian> sure ill send some tones your way if you like?
[20:30] <SP9UOB-Tom> OZ1SKY_Brian: 432.200
[20:30] <SP9UOB-Tom> im listening
[20:30] <OZ1SKY_Brian> 432.212 pse
[20:31] <OZ1SKY_Brian> anything @212?
[20:31] <SP9UOB-Tom> rotating..
[20:31] <OZ1SKY_Brian> R
[20:32] <SP9UOB-Tom> im calling
[20:32] <OZ1SKY_Brian> ok ill stop and listen now
[20:33] <OZ1SKY_Brian> got a carrier now, are you in digi mode or something?
[20:33] <SP9UOB-Tom> voice, i can call in ctstia
[20:34] <SP9UOB-Tom> i have faint carrier @432.2134
[20:34] <OZ1SKY_Brian> got one at 432.212,6, close
[20:34] <SP9UOB-Tom> cqing with ctstia 32/1000
[20:35] <OZ1SKY_Brian> no trace of your signal, seems all the tropo is going west tonight.
[20:35] <SP9UOB-Tom> next time :-)
[20:36] <SP9UOB-Tom> pse approve e824732f59088844830baea973f878b3
[20:36] <OZ1SKY_Brian> http://www.dxinfocentre.com/tropo_nwe.html
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[21:05] <SpacenearUS> New vehicle on the map: 03FSFU - 12https://tracker.habhub.org/#!qm=All&q=FSFU
[21:09] gb73d (~gb73d@host-92-24-43-10.ppp.as43234.net) left irc:
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[21:17] <Vaizki> FSFU sounds like a R&S hab
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[21:30] <SpacenearUS> New position from 03WB8ELK-2 after 0316 hours silence - 12https://tracker.habhub.org/#!qm=All&q=WB8ELK-2
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[23:16] <SpacenearUS> New vehicle on the map: 03SP5MG-11 - 12https://tracker.habhub.org/#!qm=All&q=SP5MG-11
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[23:21] Nick change: laurence_ -> Laurenceb_
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[23:46] <SpacenearUS> New vehicle on the map: 03Py4sr_chase - 12https://tracker.habhub.org/#!qm=All&q=Py4sr_chase
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[00:00] --- Sat Nov 26 2016