highaltitude.log.20190224

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[01:26] <Julie_> Hi
[01:27] <Julie_> I want to listen to a colleagues balloon
[01:27] <Julie_> How can I register as a listener?
[01:27] <Darkside> no need to register as a listener
[01:27] <Julie_> I have antenna & sdr a
[01:28] <Darkside> you just need to have the appropriate equipment and softrware
[01:28] <Julie_> Ok
[01:28] <Julie_> But I see on the map that people whore listening have nicknames
[01:29] <Darkside> so thats configured in dl-fldigi
[01:29] <Darkside> trying to find the appropriat guides..
[01:31] <Darkside> https://ukhas.org.uk/guides:tracking_guide
[01:31] <Darkside> and https://ukhas.org.uk/guides:sdr_tracker i guess
[01:31] <Darkside> im sure there was a better walkthrough guide somewhere
[01:32] <mwheeler> balloon retrived
[01:32] <Darkside> mwheeler: noice
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[01:34] <Julie_> Ok, thanks. Should I use WFM or USB mode?
[01:35] <Darkside> USB
[01:35] <Darkside> well
[01:35] <Darkside> this assumes the payload you are listening to is a RTTY transmitter
[01:35] <Julie_> Yes RTTY
[01:35] <Darkside> ok
[01:36] <Darkside> then those guides are hopefully valid
[01:36] <Julie_> but this page says WFM: https://ukhas.org.uk/guides:sdr_tracker
[01:36] <Darkside> i havent walked through them in a while tbh
[01:36] <Darkside> keep reading
[01:36] <Julie_> https://ukhas.org.uk/_detail/guides:sdr1.png?id=guides%3Asdr_tracker
[01:36] <Julie_> Ok
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[08:57] <PE2BZ> M6OLZ are you awake ?
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[09:10] <PE2BZ> !whereis BSS18
[09:10] <SpacenearUS> 03PE2BZ: 03BSS18 was over 0332.79167,105.66667 at 0310920 meters about 0315 minutes ago
[09:11] <PE2BZ> !track BSS18
[09:11] <SpacenearUS> 03PE2BZ: Here you go - 12https://tracker.habhub.org/#!qm=All&q=BSS18
[09:11] <PE0SAT> GM PE2BZ
[09:12] <PE2BZ> GM Jan !
[09:12] <PE0SAT> Any flights expected above NL?
[09:16] <PE2BZ> Not today. Trickv could come in range from the UK with LoRa SSDV mode 1 and rtty
[09:17] <PE0SAT> Thanks Ben, any AFSK signals received from our mutual acquaintance ;-)
[09:19] <PE2BZ> He pleated guilty as charged ;-) But a lot of ¨fax sounding¨ signals on the 26 East satellite, about 700 MHz above the amateur transponder.
[09:22] <PE0SAT> I need to build something also
[09:23] <PE0SAT> Ben do you mean the 400bps TLM beacon?
[09:24] <PE0SAT> There is a decoder available
[09:25] <PE0SAT> 10489798.34
[09:25] <PE2BZ> No, I succesfully decoded that with an ¨AO-40¨ decoder. Thanks to happysat who sent me the link :-)
[09:25] <PE2BZ> 700 MHz up :-)
[09:27] <SpacenearUS> New vehicle on the map: 03trickv1_chase - 12https://tracker.habhub.org/#!qm=All&q=trickv1_chase
[09:28] <PE0SAT> PE2BZ: Lets enjoy the weather, have a great day
[09:28] <PE2BZ> Enjoying the weather on the roof, close to the antennas ;-)
[09:28] <PE0SAT> :D
[09:29] Action: PE2BZ has to do some plumbing on this beautiful Sunnyday....
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[09:49] <Darkside> Viproz_: yo!
[09:52] Nick change: Viproz_ -> Viproz
[09:52] <Viproz> Darkside, hey, it's been a while
[09:52] <Darkside> yup
[09:53] <SpacenearUS> New vehicle on the map: 03SILTS1 - 12https://tracker.habhub.org/#!qm=All&q=SILTS1
[09:54] <trickv_> FYI we're launching from Elsworth today. One RTTY tracker and one LoRa. Payload doc just got approved 10 hours ago so it's not yet made the Google Calendar...details are in the email or ask me here :)
[09:54] <Viproz> I was thinking about your test and I think another metric we could use is the number of header seen by the detector, it would require a bit of tweaking of the existing code though
[09:54] <Darkside> so yeah, have been doing a lot of work relating to performance testing of the demodulators
[09:54] <Darkside> maybe...
[09:54] <Darkside> i would prefer a metric of packets with valid CRC
[09:54] <Viproz> I have a version for the M10 already doing this but just on local
[09:55] <Viproz> well for M10 you just need to add -R to the command and it will display how many decoder over how many header count (using the bad header detection)
[09:55] <Darkside> ok
[09:55] <Darkside> fairly easy thing to tweak
[09:56] <Darkside> i'm starting some work on re-structuting the decoder module to more easily handle changes in decoder flowchains, and better support testing
[09:56] <Viproz> yeah the one on local I was talking about is just my better version that I've been trying to implement but it's already there for the prod version
[09:56] <Darkside> and im thinking of csete doesnt get his shit together soon, we might just use csdr as a start
[09:57] <Darkside> only issue there is it needs to be built from a git repository
[09:57] <Darkside> so we're getting closer toward needing better build scripts
[09:57] <Viproz> well it's already the case for rtl_sdr
[09:58] <Darkside> true
[09:58] <Darkside> not too hard to add another one..
[09:59] <Darkside> and im glad about the rtl_fm 'raw' output - that solves the issue with rtl_sdr and no bias-tee support
[10:00] <Darkside> also means it might make it easier to support other SDRs in the figure (once we find a replacement for rtl_power anyway...)
[10:00] <Darkside> but yeah, im still not 100% sure about your M10 sample, or if i've got the Eb/No calculations right
[10:01] <Darkside> but its a start
[10:01] <Viproz> oh okay, I was reading your post in the issue but I didn't understand what was better with rtl_fm over rtl_sdr
[10:01] <Darkside> bias tee support is about it
[10:02] <Viproz> I have all my stuff now so if you want I can get you a cleaner sample if I desolder the antenna I won't need to rush
[10:02] <Darkside> which is important - there are a few stations that use the rtl-sdr's bias output (mine included)
[10:02] <Darkside> nah the sample is clean enough i think
[10:02] <Darkside> it'll do for now
[10:02] <Darkside> i still want to get hold of a M10 sample here eventually
[10:02] <Darkside> need to complete my collection!
[10:03] <Viproz> yeah I'm thinking about buying a LNA for my setup since I'll need to use some thin coax to go under a door so bias tee is very useful
[10:04] <Viproz> once I catch a few I might be able to send you one !
[10:05] <Darkside> :D
[10:05] <Darkside> also i definitely want to switch to dft_detect
[10:05] <Darkside> its so much better
[10:05] <Darkside> uses a bit more CPU, but not enough to matter
[10:06] <SpacenearUS> New vehicle on the map: 03X2 - 12https://tracker.habhub.org/#!qm=All&q=X2
[10:07] <Darkside> need to discuss with rs1729 and find out if he has any plans to change the output format
[10:07] <PE2BZ> trickv_ good luck with the flight ! Did wake up some Dutch listeners over here ;-)
[10:07] <Darkside> currently its TYPE:correlation_score
[10:08] <Viproz> I need to take a look at his code in there, there are probably a lot of things that I could use to detect headers
[10:09] <Darkside> its nice in that it will fix the current issue with false detections of RS41s as M10s
[10:09] <Darkside> and it should improve detection of DFMs significantly too
[10:09] <SpacenearUS> New vehicle on the map: 03ex2 - 12https://tracker.habhub.org/#!qm=All&q=ex2
[10:09] <Darkside> the improvements are so much, that i may have to lower the peak detection threshold
[10:10] <Viproz> oh yeah I was wondering also, for M10 when you receive them they keep on switching from signal to inverted signal (so would be detected as -M10 and M10), doesn't this happend to ther RS ?
[10:11] <Darkside> havent seen it with vaisalas
[10:11] <Darkside> DFMs have the weird thing where DFM06s are inverted with respect to DFM09s, but rs1729 has fixed that with his updates to the dfm decoder
[10:12] <Viproz> in my header detecting for M10 decoding I just check both ways all the time and I remember at the start I was getting about 1/2 of SondeMonitor decodes because of this
[10:12] <Darkside> ok
[10:12] <Darkside> well at the moment the M10 decoder chain have the best performance out of any of the sondes
[10:13] <Darkside> but that might be to do with me not adding the right amount of noise :-)
[10:13] <Darkside> (or, your decoder is about 5db better than everything else... take your pick)
[10:13] <Viproz> I don't think it adds any real CPU usage so might be worth adding to all of the script, it would simplify the process
[10:15] <Darkside> what woudl be *really* useful for us, if you can figure out a way to do it, is a way to hack rtl_fm to read IQ data from a file instead of from a SDR
[10:15] <Viproz> the manchester encoding is probably helping a lot, it makes it really easy to differentiate a 1 from a 0
[10:15] <Darkside> as i really want to benchmark the csdr decode chain against what we are using now (rtl_fm)
[10:15] <Darkside> and i have no way of doing tests using rtl_fm's fm demodulator
[10:16] <Darkside> what i'm trying to avoid is the 'you broke my station! it doesnt detect anything!' e-mails that i get after pushing out a major update
[10:16] <Darkside> i want hard proof that the performance either hasn't changed, or has gotten better
[10:17] <Viproz> yeah I'm taking a look, would indeed be very useful
[10:17] <Darkside> if you could figure that one out, i'd be very grateful!
[10:21] <PE2BZ> !payload X2
[10:21] <SpacenearUS> 03PE2BZ: Payload 03X2 10(6ac1) 03$$X2 - 03434.2125 MHz USB 03RTTY 75/480Hz ASCII-7 none 2
[10:21] <Viproz> https://github.com/osmocom/rtl-sdr/blob/master/src/rtl_fm.c#L781 we can probably do some hacking calling this function directly, it's going to get ugly for sure x)
[10:22] <Darkside> yeah i expect it to...
[10:22] <Darkside> i figure i should be able to take the set of generated samples and convert them back into complex_u8 format, at whatever sampl rate is required
[10:23] <Darkside> and move the sonde signal to wherever rtl_fm expects it to be
[10:23] <Darkside> also omfg your M10 sample had me headscratching for a while
[10:23] <Darkside> took me a few failed attempt to figure out that the signal wasn't centered
[10:24] <Darkside> and that carrier between packets confused me for a while, I thought it was a DC offset issue
[10:27] <Viproz> yeah the M10 generates a weird peak a bit to the right I have no clue why
[10:27] <Darkside> idle tone on the transmitter
[10:27] <Darkside> i suspect they are modulating a FSK transmitter with a UART
[10:27] <Darkside> no data = constant tone
[10:27] <Viproz> it's probably the reason why auto_rx has no issuepicking the right frequency too
[10:28] <Darkside> yeah
[10:28] <Darkside> and its close enough to the centre that the quantization fixes it up
[10:29] <Darkside> still want to try and get david's modem working for all the sondes... i've got a working decode chain for RS41s that has the same performance as the fm chain, but allows the sonde to be anywhere in a ~40 khz wide passband
[10:29] <Darkside> (which i would probably narrow up anyway, but it still allows for a bit of drift)
[10:30] <SpacenearUS> New vehicle on the map: 03DL7AD-11 - 12https://tracker.habhub.org/#!qm=All&q=DL7AD-11
[10:32] <Darkside> that said, if rs1729's decode_iq stuff progresses, that'll probably work just as well
[10:32] <Darkside> hi rs1729! (from the past......)
[10:32] <Viproz> we can directly feed rtl_sdr samples to rtlsdr_callback, going to be easier than I thought
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[10:33] <Viproz> just need to read correctly I guess
[10:33] <Darkside> and we need to know where in that sample stream it's going to look for a signal
[10:33] <Darkside> i should then be able to take the sample, interpolate up to whtever sample rate is required, shift to the right place, and then convert to u8 samples
[10:41] <Viproz> when launching rtl_fm it tells you the samplerate and the center frequency it's using
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[10:52] <PB0AHX-Herman> gm all
[10:52] <PB0AHX-Herman> !flights
[10:52] <SpacenearUS> 03PB0AHX-Herman: Current flights: 03Trick Launch 10(e7d5), 03x2 10(6ac1)
[10:53] <PB0AHX-Herman> !payload 6ac1
[10:53] <SpacenearUS> 03PB0AHX-Herman: Payload 03X2 10(6ac1) 03$$X2 - 03434.2125 MHz USB 03RTTY 75/480Hz ASCII-7 none 2
[10:53] <PB0AHX-Herman> !payload e7d5
[10:53] <SpacenearUS> 03PB0AHX-Herman: Payload 03hatTrick 10(e7d5) 03$$hatTrick - 03LoRa Mode 1 - 03434.275 MHz USB 03RTTY 50/350Hz ASCII-8 none 2
[10:53] <SpacenearUS> 03PB0AHX-Herman: Payload 03RADIO_FLYER 10(e7d5) 03$$EAGLE - 03Primary - 03434.65 MHz USB 03RTTY 50/570Hz ASCII-8 none 2
[10:57] <SpacenearUS> New position from 03hatTrick after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=hatTrick
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[10:58] <SpacenearUS> New position from 03EAGLE after 0312 hours silence - 12https://tracker.habhub.org/#!qm=All&q=EAGLE
[10:58] <SpacenearUS> New vehicle on the map: 03trickv lap_chase - 12https://tracker.habhub.org/#!qm=All&q=trickv%20lap_chase
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[11:10] <Viproz> Darkside, you have a way to decimate (or something similar) to a not round number ?
[11:14] <Darkside> Viproz: csdr has a fractional interpolation/decimation routine
[11:14] <Viproz> I wrote a simple hack to feed it what I want while it still uses the SDR https://github.com/Viproz/rtl-sdr/blob/master/src/rtl_fm.c#L783 but the frequency it wants to tune to is not round at all so I can't decimate simply
[11:15] <Darkside> hrm
[11:15] <Viproz> oh so I just write the decimal number
[11:15] <Darkside> wel
[11:15] <Darkside> im not sure the fractional decimation routine works with complex input
[11:15] <Darkside> not sure why you need fractional decimation though?
[11:16] <Darkside> i've been setting the SDR to 960khz sample rate
[11:16] <Darkside> which is a nice integer relationship to the 96 khz i've been using for my samples
[11:16] <Viproz> Tuned to 401253000 Hz.
[11:16] <Viproz> Oversampling input by: 46x.
[11:16] <Viproz> Oversampling output by: 1x.
[11:16] <Viproz> Buffer size: 8.09ms
[11:16] <Viproz> Exact sample rate is: 1012000.000804 Hz
[11:16] <Viproz> Allocating 15 zero-copy buffers
[11:16] <Viproz> Sampling at 1012000 S/s.
[11:16] <Darkside> hmm
[11:17] <Darkside> oh wow you cant force theinput sample rate
[11:17] <Viproz> I have a recording at 2.4MHz and rtl_fm asks for 1012000Hz
[11:17] <Darkside> thats a shit
[11:18] <Darkside> you might be able to use tsrc out of codec2-dev
[11:19] <Darkside> http://svn.code.sf.net/p/freetel/code/codec2-dev/misc/tsrc.c
[11:19] <Darkside> though it only accepts complex signed-16 samples iirc
[11:20] <Darkside> so you'd do something like cat yourfile.bin | csdr convert_u8_s16 | ./tsrc - - 0.42166 | csdt convert_s16_u8 | ./rtl_fm
[11:20] <Darkside> not an ideal approach, but it might work
[11:20] <SA6BSS-Mike> dl7ad is out with his airplane :)
[11:20] <Darkside> probably worth doing the resampling to an intermediate file, check the levels are ok, then to the convert back to u8
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[11:21] <Viproz> it's probably going to degrade the recording quality for rtl_fm though
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[11:22] <Darkside> Viproz: hence carefully checking the levels at each stage, to make sure you are not losing data in the type convert steps
[11:22] <Darkside> doing from u8 to s16 will be fine, but you have to be careful going the other way
[11:23] <Darkside> a nice thing here is that the FM and FSK demods are (ideally) level-insensitive
[11:23] <Darkside> so as long as th esignals dont drop below the quantization noise floor, it should be OK
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[11:35] <Viproz> Darkside, codec-2 is asking for speex-dsp to build, is it this one https://github.com/xiph/speexdsp ?
[11:36] <trickv_> Now filling the balloon at Elsworth. Steve's added a tracker X2 to the payload chain
[11:37] <Darkside> dont build the entire thing
[11:37] <Darkside> just build tsdr.c
[11:37] <Darkside> tsrc.c*
[11:37] <Darkside> that only requires libsamplerate-dev iirc
[11:37] <Darkside> http://svn.code.sf.net/p/freetel/code/codec2-dev/misc/tsrc.c
[11:38] <Darkside> gcc tsrc.c -o tsrc -lm -lsamplerate
[11:38] <PB0AHX-Herman> trickv_, GL
[11:40] <Pit[m]> https://twitter.com/5GReady/status/1099634719602413568
[11:45] <Darkside> fun
[11:46] <Darkside> we're seeing 4 of them on sondehub ;-)
[11:46] <trickv_> and we're up!
[11:47] <Darkside> Pit[m]: there's some improvements coming relating to detection of DFMs...
[11:47] <Darkside> should get a lot better (i hope)
[11:47] <Darkside> probably a few weeks away tho
[11:48] <Pit[m]> sounds good
[11:48] <Pit[m]> <freenode_Dar "we're seeing 4 of them on sondeh"> https://radiosondy.info/maps/web_map.php?live_map=1
[11:50] <Darkside> no live predictions ;-)
[11:52] <jbayfield> trickv_: sounding good :)
[11:52] <Darkside> Pit[m]: still need to figure out whats up with the DFM APRS object naming...
[11:52] <Viproz> Darkside, s16 to u8 doesn't exist apparently
[11:53] <Darkside> Viproz: ... hrm
[11:53] <Viproz> it's a big mess since my signal is not centered
[11:53] <Darkside> Viproz: can always go via float :-)
[11:54] <Darkside> i prefer to convert everytign to float, work there, and then convert back to whatever right at the end
[11:58] <Pit[m]> that live predictions on sondehub are nice, i will start feeding my data. do i need a valid ham callsign?
[11:58] <Darkside> nope
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[11:59] <Darkside> could use PIT711_AUTO_RX as the uploader callsign
[11:59] <Darkside> or whatever the number was
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[12:05] <Viproz> cat ~/shortrecord.sdr | csdr convert_u8_f |csdr shift_addition_cc `python -c "print float(401500000-401252000)/2400000"` | csdr fractional_decimator_ff 2.3809523582459374803390902792662 | csdr convert_f_u8 | ./src/rtl_fm -s 24k -f 401000000 | play -t raw -r 24k -e s -b 16 -c 1 - I'm getting somewhere but the sound is high pitch
[12:06] <Darkside> fractional_Decimator_ff doesnt work on complex samples iirc
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[12:06] <Darkside> it'll interpret them as a string of real-values samples, which will fuck things up
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[12:06] <Viproz> oh I though when convertinf to f it was making things work
[12:07] <Darkside> nope
[12:07] <Darkside> the interpolation/decimation functions have to know ti interpret the incoming samples as complex or not
[12:07] <Darkside> as complex samples are just I,Q,I,Q interleaved...
[12:08] <Darkside> its a pain that he doesnt have a complex fractional decimator
[12:10] <pe2g_> !flights
[12:10] <SpacenearUS> 03pe2g_: Current flights: 03Trick Launch 10(e7d5), 03x2 10(6ac1)
[12:11] <Viproz> cat ~/shortrecord.sdr | csdr convert_u8_f |csdr shift_addition_cc `python -c "print float(401500000-401252000)/2400000"` | csdr convert_f_s16 | ./tsrc - - 2.3809523582459374803390902792662 | csdr convert_s16_f | csdr convert_f_u8 | ./src/rtl_fm -s 24k -f 401000000 | sox -t raw -r 24k -e s -b 16 -c 1 - -t wav tsrc.wav
[12:11] <Viproz> I don't get anything with this, just noise
[12:11] <PB0AHX-Herman> pe2g 434.649 voor eagle
[12:11] <Darkside> Viproz: i think that shoudl be the inverse value for tsrc
[12:11] <pe2g_> Tnx
[12:11] <Darkside> it does interpolation and decimation, depending on th enumber given
[12:11] <PB0AHX-Herman> 50bd 570 shift
[12:12] <Darkside> so should be 0.4200 or whatever
[12:12] <Viproz> oh okay, working now but still high pitch
[12:13] <Darkside> still possibly some sample rate mismatch then
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[12:16] <PB0AHX-Herman> the lora sig is in mode 1 ???
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[12:17] <Viproz> I might just record a sample at the frequency and samplerate rtl_fm wants, we can always decimate it to a multiple of 24kHz later to compare to other methods
[12:18] <Darkside> would be nicer if rtl_fm could handle the right sample rate..
[12:18] <Darkside> is it possible to just twiddle some resampling factor?
[12:20] <Viproz> I never get something like the original signal
[12:20] <Darkside> hrm
[12:20] <Darkside> so rtl_fm offset-tunes the SDR
[12:20] <Darkside> you already have the signal offset as well
[12:21] <Darkside> in your source file i mean
[12:21] <Darkside> maybe make a recording with the signal dead centre, just to make sure you are offsetting correctly
[12:22] <Viproz> yeah to make sure that in perfect conditions my hack is good enough
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[12:26] Nick change: pe2g_ -> PE2G
[12:27] <SpacenearUS> New vehicle on the map: 03Sp6vxj_chase - 12https://tracker.habhub.org/#!qm=All&q=Sp6vxj_chase
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[12:36] <trickv_> PB0AHX-Herman: yes LoRa is Mode 1. Signal doesn't seem to be great from here
[12:36] <PB0AHX-Herman> trickv_, yes i am writing him
[12:36] <PE2BZ> Do you have info for X2 frequency / mode ?
[12:37] <trickv_> Hmm...I do not. I'll go search emails from Steve; he usually keeps his tracker configs the same between launches
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[12:38] <dbrooke> 434.212 mode 0
[12:39] <dbrooke> rtty 75/480 7n2
[12:39] <dbrooke> quite drifty and a bit weak
[12:40] <PE2BZ> tnx info !
[12:40] <Darkside> Viproz: im off to bed.. let me know if you get anwyere with the rtl_fm stuff..
[12:41] <Viproz> Darkside, okay, I'm trying to mod my M10 for low power
[12:47] <trickv_> PE2BZ, G8FJG, G8KNN: how's the hatTrick LoRa signal? It seems very weak from my tracker in the car
[12:48] <PE2BZ> PB0AHX has 10 elements vertical without preamp and that runs quite OK, over here, 7 elements, only CRC failures,
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[12:54] <trickv_> thanks PE2BZ
[12:55] <trickv_> it's a 164mm single wire with no ground plane...I suspect the ground plane radials would've really helped
[12:56] <PE2BZ> +1 to that :-) it´s either that or 250 mW :-)
[12:57] <trickv_> lunch pit stop right by Duxford airfield
[13:00] <PE2BZ> trickv_ if all gets recovered well can we have a HD album ?
[13:09] <trickv_> Yes :)
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[13:15] <trickv_> we need it to burst now...else wet landing!
[13:16] <trickv_> we were shooting for 32k
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[13:19] <Bozzy> Just in time?
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[13:20] <trickv_> phew we just might stay on dry land...i got a packet at 34,500m from EAGLE
[13:23] <trickv_> btw here's the landing predictor from around launch time: http://predict.habhub.org/#!/uuid=3a6198e7e89cbcfcdedb28bcd08e954461ce660a
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[13:36] <trickv_> sensors on EAGLE are wrong :( the pressure has been stuck at 534 for a long time. Must be the bit of code which reads the sensor hit an error and died. Tracker is still running OK just lying about that, and probably temperature data too as it's a BME280 sensor
[13:37] <PE2BZ> Could the sensor be frozen ?
[13:38] <trickv_> Quite possibly. But more than likely it failed to read data once, and the thread which reads data crashed, and the tracker will just use the last good data over and over again
[13:38] <trickv_> Couldn't manage to reproduce that problem at home but same thing happened on my last flight with it. (but not on it's /first/ flight 1 year ago)
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[13:41] <SpacenearUS> New vehicle on the map: 03XX - 12https://tracker.habhub.org/#!qm=All&q=XX
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[13:48] <SpacenearUS> New vehicle on the map: 03INIT-1 - 12https://tracker.habhub.org/#!qm=All&q=INIT-1
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[14:00] <trickv_> last RX from EAGLE (I'm about 20km away) was at 13:58:04 51.768091,0.77767 285m altitude
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[14:42] <Pit[m]> easy terrain
[14:47] <trickv_> Recovered EAGLE, HATTRI land and X2. So easy.
[14:47] <trickv_> About 20m off the nearest road in the middle of a field
[14:48] <trickv_> Both my trackers lost battery on landing :( guess I do have to solder batteries in the future
[14:49] <Bozzy> Will you be uploading any SSDV pictures anywhere?
[14:51] <PE2BZ> trickv_ congrats on recovery !
[14:58] <trickv_> Yup. Both eagle and hattrick logged photos to the SD card and I'll publish them all in a Google Photos album and write it up on my weblog: trick.vanstaveren.us
[14:59] <trickv_> PE2BZ: thanks :) well done tracking that LoRa payload, the signal really wasn't great but the SSDV photos were worth it
[15:01] <PE2BZ> We made PA3DRJ one of the proud receivers over 400 km distance :-)
[15:01] <PE2BZ> Should be PA3DJR that callsign
[15:01] <PE2BZ> But he does not read here so he will never know ;-)
[15:11] <DL7AD> SA6BSS-Mike: true
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[15:23] <trickv_> Wow 400km. Nicely done to PA3DJR !
[15:35] <Bozzy> Got to go, well done today Trickv_
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[17:38] <SpacenearUS> New vehicle on the map: 03ON4SOG_chase - 12https://tracker.habhub.org/#!qm=All&q=ON4SOG_chase
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[19:01] <SpacenearUS> New vehicle on the map: 03SP6ZWR - 12https://tracker.habhub.org/#!qm=All&q=SP6ZWR
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[22:36] <SpacenearUS> New position from 03ECHO2 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=ECHO2
[22:37] <SpacenearUS> New position from 03ECHO1 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=ECHO1
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[23:25] <SpacenearUS> New position from 03BSS18 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BSS18
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[00:00] --- Mon Feb 25 2019