[01:06] Laurenceb (~laurence@223.141.208.46.dyn.plus.net) left irc: Ping timeout: 264 seconds [01:44] dude12312414_ (~test@gateway/tor-sasl/dude12312414) joined #highaltitude. [01:44] dude12312414 (~test@gateway/tor-sasl/dude12312414) left irc: Ping timeout: 240 seconds [01:45] Nick change: dude12312414_ -> dude12312414 [02:42] zyp (zyp@zyp.no) left irc: Ping timeout: 265 seconds [02:42] zyp (zyp@zyp.no) joined #highaltitude. [02:53] DL7AD (~sven@2001:16b8:5cf5:3600:b090:d320:fe9c:e67b) left irc: Ping timeout: 256 seconds [03:08] DL7AD (~sven@2001:16b8:5c7d:3300:cd8a:c18:4bda:51e8) joined #highaltitude. [03:18] Axone (~Axone@lfbn-idf1-1-63-56.w82-124.abo.wanadoo.fr) left irc: Quit: ZNC 1.6.6+deb1ubuntu0.2 - http://znc.in [03:20] Axone (~Axone@lfbn-idf1-1-63-56.w82-124.abo.wanadoo.fr) joined #highaltitude. [03:45] dude12312414 (~test@gateway/tor-sasl/dude12312414) left irc: Remote host closed the connection [03:55] tweetBot (~nodebot@philcrump.co.uk) left irc: Remote host closed the connection [03:55] tweetBot (~nodebot@philcrump.co.uk) joined #highaltitude. [05:30] New position from 03U4B-6 after 0313 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U4B-6 [05:54] SA6BSS-Mike (~SA6BSS-Mi@h-145-25.A357.priv.bahnhof.se) joined #highaltitude. [05:58] SA6BSS-Mike|2 (~SA6BSS-Mi@155.4.14.18) left irc: Ping timeout: 276 seconds [06:25] New position from 03BSS25 after 0314 hours silence - 12https://tracker.habhub.org/#!qm=All&q=BSS25 [06:28] FireFighter (~firefight@2601:44:4200:ab4f:61fa:923d:4746:e5a1) joined #highaltitude. [06:33] snh (~snh@unaffiliated/snh) left irc: Quit: ZNC - http://znc.in [06:35] snh (~snh@unaffiliated/snh) joined #highaltitude. [06:52] New vehicle on the map: 0319GSN0013_chase - 12https://tracker.habhub.org/#!qm=All&q=19GSN0013_chase [07:01] Lahti (~Lahti@dyttqfqdgms61gfjw4-rt-4.rev.dnainternet.fi) joined #highaltitude. [07:31] michal_f (~mfratczak@83-238-169-175.static.ip.netia.com.pl) joined #highaltitude. [07:39] LazyLeopard (~irc-clien@chocky.lazyleopard.org.uk) joined #highaltitude. [07:59] GeekShadow (~antoine@reactos/tester/GeekShadow) left irc: Ping timeout: 250 seconds [08:15] kedidie (~kedidie@ptr-4inhh2to13msad2a7g.18120a2.ip6.access.telenet.be) joined #highaltitude. [08:27] daveake (uid144009@gateway/web/irccloud.com/x-mcagvfdxlqyxtink) joined #highaltitude. [08:38] Kodar (~Kodar@93-142-12-160.adsl.net.t-com.hr) joined #highaltitude. [09:01] Viproz__ (~Viproz@unaffiliated/viproz) joined #highaltitude. [09:16] New position from 03BZ2 after 034 days silence - 12https://tracker.habhub.org/#!qm=All&q=BZ2 [09:42] G7UXW-Kevin65 (d5cdcb47@213.205.203.71) joined #highaltitude. [09:43] G7UXW-Kevin65 (d5cdcb47@213.205.203.71) left irc: Remote host closed the connection [10:10] GeekShadow (~antoine@nzf.turmel.info) joined #highaltitude. [10:10] GeekShadow (~antoine@nzf.turmel.info) left irc: Changing host [10:10] GeekShadow (~antoine@reactos/tester/GeekShadow) joined #highaltitude. [10:11] New position from 03KN4IUD-15 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=KN4IUD-15 [10:12] Viproz_ (~Viproz@unaffiliated/viproz) joined #highaltitude. [10:13] chris_99 (uid26561@gateway/web/irccloud.com/x-wtkxtptqhidubdre) joined #highaltitude. [10:15] Viproz__ (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 250 seconds [10:21] G7UXW-Kevin (d5cdcb47@213.205.203.71) joined #highaltitude. [10:23] G7UXW-Kevin (d5cdcb47@213.205.203.71) left irc: Remote host closed the connection [10:27] JoHarKey (~UA1ZGK@77.73.139.102) joined #highaltitude. [10:33] G7UXW-Kevin57 (d5cdcb47@213.205.203.71) joined #highaltitude. [10:45] Kodar_ (~Kodar@93-142-30-24.adsl.net.t-com.hr) joined #highaltitude. [10:49] G7UXW-Kevin57 (d5cdcb47@213.205.203.71) left #highaltitude. [10:49] Kodar (~Kodar@93-142-12-160.adsl.net.t-com.hr) left irc: Ping timeout: 264 seconds [10:59] G7UXW-Kevin (d5cdcb47@213.205.203.71) joined #highaltitude. [11:02] BZ2 Details Please >>> Freq Baud etc etc Thanks in advance [11:09] ping fsphil [11:12] pong [11:13] hi :) [11:13] I try to integrate your SSDV decoder into habdec. having a little trouble... [11:13] how do I change my password ?? [11:14] It looks I receive good packets, but get error: "Unexpected MCU ID in packet XXX." [11:14] Any clues ? [11:15] I compared received data to output of your ssdv executable: https://pastebin.com/ZP5rSjND - they look indentical [11:18] tweetBot (~nodebot@philcrump.co.uk) left irc: Remote host closed the connection [11:18] tweetBot (~nodebot@philcrump.co.uk) joined #highaltitude. [11:26] not sure. have you RS decoded it, and passed the CRC test? [11:27] G7UXW-Kevin: I think BZ2 is WSPR on 20m and /msg NickServ SET PASSWORD newpasswordhere [11:28] thank you [11:28] dbrooke: thank you [11:29] does anyone still send ssdv on rtty, or is it all lora or wenet now? [11:30] G7UXW-Kevin (d5cdcb47@213.205.203.71) left #highaltitude. [11:31] Darkside, I will [11:32] if you're not in the UK, you can go faster [11:32] fsphil, I just printed the packets and compared to what I send. they're identical. [11:32] which is what wenet was all about [11:32] but it cant be used in the uk because of the ISM restrictions [11:33] well, it could be used, but at a lower rate [11:33] still faster than you'l get off RTTY [11:33] I thought maybe I am feeding the packets wrong way... [11:33] BZ2 is wspr 20 mtr [11:33] Darkside, for me it's the educational purpose rather than being fast. I'll get to LoRa too, one day [11:33] k [11:34] just sayin, theres better options out there [11:34] I know :) [11:34] RTTY is old and crap [11:34] I never did get my wenet-10k code tested [11:34] but getting from 0 to hero was lots of fun. [11:34] when I started, I knew nothing about RF and singals [11:35] michal_f: so have you done BER tests on your modem yet? [11:35] I still know nothing :) [11:35] ive been working a lot with david rowe on BER testing of fsk_demod at low rates [11:35] michal_f: so you're saving out the 256 byte packets you receive in habdec, and feeding them into the command line program? [11:36] no. I have not. I don't know how to. For now it's enough for me if I decode balloons "to the horizon" [11:36] fsphil: no. I feed the packets to your ssdv_dec_feed() function [11:36] https://github.com/drowe67/codec2/blob/horusbinary_v2/octave/fsk_demod_BER_test.py [11:37] theres a python script with generates a test file, adds 'calibrated' noise, and then passes it through the demod [11:37] Darkside, bookmarked [11:37] we feed in a pseudorandom sequence which can be correlated against at the output of the demod, and then the number of bit errors calculated [11:38] in what form is this delivered? IQ samples stream or WAV audio ? [11:39] fsk_mod produces real values samples [11:39] michal_f: did you run ssdv_dec_is_packet() on the data first? [11:39] but i convert them to IQ in my script [11:39] fsphil: don't bother. I hoped that I did something stupid and obvvious. I need to debug more [11:39] and feed IQ into fsk_demod [11:40] fsk_Demod can take real valued samples too, but in our target application we'll likely be feeding it with IQ. works the same either way [11:40] fsphil, yes. all packets pass ssdv_dec_is_packet() test. The pastebin URL also prints info from ssdv_dec_header() [11:40] but the point is, genreated test bits, modulate, apply noise, demodulate, count bits [11:40] repeat for a range of Eb/N0 values [11:41] Darkside, then it seems I can use it for a test. habdec consumes complex IQ [11:41] sure, but you still need a way to count bits [11:41] very curious how would it perform [11:42] if you can make a command-line version of habdec that can take raw samples in, and can output bits as one-bit-per-byte format (e.g. 0x00, or 0x01), it could probably be slotted in in palce of fsk_demod [11:42] fsk_demod uses signed-int (16-bit) IQ input [11:43] output from fsk_demod is either that one-bit-per-byte format, or soft decisions which are used for LDPC decoding [11:44] though only the one-bit-per-byte format is used for the BER testing at the moment [11:44] but yeah, if you can maek somthing which takes s16 samples on stdin, and emit one-bit-per-byte on stdout, it shoudl just slot in to the testing script [11:46] I use 32bit float samples. Do you think simple conversion from s16 to f32 at front would be OK for the purpose of this test ? [11:47] yes [11:47] i use 8-byte complex samples for the generated files anyway [11:47] and convert to s16 before feeding into fsk_demod [11:50] theres also some code to stress the frequency estimator a bit by doppler shifting the input signal throughout the recording [11:51] and david has some octave does that applies a sinusoidal frequency shift throughout the test which i need to implement at some point too [11:52] I don't feel I need to go that deep :) [11:53] are you doing frequency estimation? [11:54] or are you getting the user to click on the signal [11:56] I have some form of AFC, but sometimes it drifts off [11:58] right [11:58] searches for peaks in frequency [11:58] https://www.youtube.com/watch?v=I-5Ii4ME3Mg [11:58] yes, frequency estimation is pretty difficult [11:58] this is how it works, however this is old prototype [11:58] fsk_Demod is currently doing peak detectionn, and it works pretty well [11:59] but david is working on a mask-based method which works even better [11:59] however it requires more information from the user, e.g. tone spacing [11:59] same here. peak detection looks tobe ok on my side. It just sometimes jumps off for no reason. Probably some stupid bug [12:00] with peak detection it would work on any tone spacing, but it does get confused by in-band interferers [12:00] with habdec I do it a bit different than usuall way, there are no two filters for mark/space frequencies [12:00] with mask detection it shoudl be a lot less susceptible to that [12:00] just get the core of habdec in a form suitable for testing [12:01] and we can see how close it is to theory [12:01] I do a freq. discriminant on complex signal, which gives me real values signal centered on 0. I then extract bits from that (in a ugly way) [12:01] I will one day. [12:02] its a pretty important part of modem development [12:04] One thing I'd like to add in future is SNR estimation [12:23] New vehicle on the map: 03PH1M-RTTY - 12https://tracker.habhub.org/#!qm=All&q=PH1M-RTTY [12:24] New vehicle on the map: 03PH1M-4FSK - 12https://tracker.habhub.org/#!qm=All&q=PH1M-4FSK [12:25] daveake: hey, just wondering if you created a blog post about the HAB watch? [12:25] Yes :) [12:26] http://www.daveakerman.com/?p=2683 [12:26] ooh :) ta [13:00] Laurenceb (~laurence@223.141.208.46.dyn.plus.net) joined #highaltitude. [13:27] M6BQV (~m6bqv@200.31.6.51.dyn.plus.net) joined #highaltitude. [13:30] that watch is badass :) [13:33] dude12312414 (~test@gateway/tor-sasl/dude12312414) joined #highaltitude. [13:36] M6BQV (~m6bqv@200.31.6.51.dyn.plus.net) left irc: Quit: Chao for now! [13:36] New vehicle on the map: 03Spokane_chase - 12https://tracker.habhub.org/#!qm=All&q=Spokane_chase [13:37] Need that for rs41 decode [13:38] Chaser watch ;) [13:39] Feet free to modify it to do that :) [13:40] can you talk to your car through it? [13:41] :) [13:42] G7UXW (d5cdcb47@213.205.203.71) joined #highaltitude. [13:48] dude12312414 (~test@gateway/tor-sasl/dude12312414) left irc: Remote host closed the connection [13:53] g7uxw83 (d5cdcb47@213.205.203.71) joined #highaltitude. [13:54] g7uxw83 (d5cdcb47@213.205.203.71) left irc: Remote host closed the connection [13:55] G7UXW (d5cdcb47@213.205.203.71) left irc: Remote host closed the connection [13:55] g7uxw (d5cdcb47@213.205.203.71) joined #highaltitude. [13:56] g7uxw, good afternoon, my tracker transmits wspr on 20 mtr band [13:59] PE2BZ: no hf until tomorrow. fishing pole broken, will be repairing over night what is the dial freq ?? [13:59] 14.095.600 [14:06] g7uxw, Receiving myself on only the dipole from a Sota 2 meter 4 el antenna.... No HF antenna at all over here, I have faith in ¨the network¨ ;-) [14:16] Trying Hack Green SDR [14:16] PE2BZ: Trying Hack Green SDR [14:52] g7uxw (d5cdcb47@213.205.203.71) left irc: Remote host closed the connection [15:25] fsphil ! still around ? [15:26] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude. [15:27] My sin was to call ssdv_dec_get_jpeg() on every decoded packet. It works if I call this with all packets collected. [15:27] Is it possible to save JPEG with every new packet ? [15:42] also it seems I need to ssdv_dec_init() and ssdv_dec_set_buffer() on each new image. otherwise - images are coming in OK now [15:43] BZ2 DIY hysplit https://www.ready.noaa.gov/hypubout/trajplot_139639.pdf [16:03] michal_f: you need to pass through the packets each time. it's not very CPU intensive, it's fine to do [16:04] *all the [16:04] also make sure the packets are in the correct order [16:04] I hoped that I can save partially received JPEG - like what you see on ssd.habhub.org, images with missinbg packets [16:05] that's basically how the live page wors [16:05] works [16:05] what should I do when I miss one packet ? [16:05] just skip to the next one [16:06] ah, Ok. so I just need to sort them to be sure [16:06] cool ! getting closer [16:06] each time you get a new packet, run all the packets for that image in order and it'll give you your jpeg [16:06] you'll also need some way to sense when an image has finished [16:06] the live site considers an image finished if there have been no new packets within 5 minutes iirc [16:06] should I call ssdv_dec_init() and ssdv_dec_set_buffer() before ? [16:06] yeah [16:07] it's a new decoding run, best to reinit everything [16:07] ok. much clearer now. thanks fsphil [16:07] I'll make updates soon :) [16:07] Viproz__ (~Viproz@unaffiliated/viproz) joined #highaltitude. [16:08] no worries, any more questions just shout [16:11] Viproz_ (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 264 seconds [16:20] OZ1SKY_Brian (~Brian@ip-5-186-79-28.dhcp.fibianet.dk) joined #highaltitude. [16:22] Laurenceb (~laurence@223.141.208.46.dyn.plus.net) left irc: Ping timeout: 250 seconds [16:28] fsphil ok one more question [16:29] I notice that each packet begins with 0x55, 0x66, 0x0, 0x0, 0xb3, 0xeb or 0x55, 0x67, 0x0, 0x0, 0xb3, 0xeb [16:29] is this assumption valid ? [16:34] michal_f: https://ukhas.org.uk/guides:ssdv#packet_format [16:46] chris_99 (uid26561@gateway/web/irccloud.com/x-wtkxtptqhidubdre) left irc: [17:03] New position from 03NASD01 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=NASD01 [17:09] michal_f: no, the first byte is always 0x55 and the second byte is (currently) either 0x66 or 0x67. the rest will vary [17:09] I would try to avoid making any decisions based on the bytes, just trust the is_packet() function [17:23] dude12312414 (~test@gateway/tor-sasl/dude12312414) joined #highaltitude. [17:39] chris_99 (uid26561@gateway/web/irccloud.com/x-uyjyxfdbcpmvjtor) joined #highaltitude. [17:43] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer [18:24] https://tracker.habhub.org/#!mt=roadmap&mz=16&qm=1_hour&mc=52.19101,4.37405&f=PH1M-4FSK&q=!RS_*; [18:24] Only 200 meters to go [18:24] Would that be the first Northsea Floater phoning home ? [18:33] yep , floater for sure, dont forget to bring your fishing rod !! :) [18:36] Only 76 meters now.... [18:37] ok :) [18:38] But no fishing rod, only a short 70 cm yagi and laptop.... He has to make a choice ;-) [18:48] https://imgur.com/xOg2gfv [18:51] New position from 03PS-76 after 0317 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-76 [19:20] dude12312414 (~test@gateway/tor-sasl/dude12312414) left irc: Remote host closed the connection [19:36] New position from 03KO4ACL-12 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=KO4ACL-12 [19:42] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude. [20:05] GyroW (~GyroW@unaffiliated/gyrow) left irc: Ping timeout: 265 seconds [20:10] GyroW (~GyroW@d54C03E98.access.telenet.be) joined #highaltitude. [20:10] GyroW (~GyroW@d54C03E98.access.telenet.be) left irc: Changing host [20:10] GyroW (~GyroW@unaffiliated/gyrow) joined #highaltitude. [20:21] chris_99 (uid26561@gateway/web/irccloud.com/x-uyjyxfdbcpmvjtor) left irc: [20:22] another busy day at Cardington https://stuff.dbrooke.me.uk/sp-zBEd2V.png [20:23] is it an artillery shooting range nearby? [20:25] I think they're from the Meteorological Research Unit but I have no idea what they're doing, they're N prefix RS41s [20:25] ok [20:26] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer [20:26] it was similar yesterday but there aren't regular launches from there [20:27] ok, we have similar multi balloon launches around said artillery shooting ranges here in SWE [20:27] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) joined #highaltitude. [20:34] New position from 03PS-74 after 0315 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PS-74 [20:39] Viproz__ (~Viproz@unaffiliated/viproz) left irc: Ping timeout: 264 seconds [20:40] OLHZN (~Tory@cpe-66-66-13-40.rochester.res.rr.com) left irc: Read error: Connection reset by peer [21:02] Lahti (~Lahti@dyttqfqdgms61gfjw4-rt-4.rev.dnainternet.fi) left irc: Quit: Lähdössä [21:12] michal_f (~mfratczak@83-238-169-175.static.ip.netia.com.pl) left irc: Ping timeout: 256 seconds [21:17] New position from 03SA6BSS-7 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=SA6BSS-7 [21:37] OZ1SKY_Brian (~Brian@ip-5-186-79-28.dhcp.fibianet.dk) left irc: Quit: Please pause the radiowaves ! [22:02] LazyLeopard (~irc-clien@chocky.lazyleopard.org.uk) left irc: Quit: Textual IRC Client: www.textualapp.com [22:06] Laurenceb (~laurence@223.141.208.46.dyn.plus.net) joined #highaltitude. [22:21] FireFighter (~firefight@2601:44:4200:ab4f:61fa:923d:4746:e5a1) left irc: Remote host closed the connection [22:32] dude12312414 (~test@gateway/tor-sasl/dude12312414) joined #highaltitude. [22:35] Kodar_ (~Kodar@93-142-30-24.adsl.net.t-com.hr) left irc: Read error: Connection reset by peer [22:42] dude12312414 (~test@gateway/tor-sasl/dude12312414) left irc: Remote host closed the connection [22:43] New position from 03W8MV-11 after 033 days silence - 12https://tracker.habhub.org/#!qm=All&q=W8MV-11 [22:45] JoHarKey (~UA1ZGK@77.73.139.102) left irc: Quit: Going offline, see ya! (www.adiirc.com) [23:05] xfce1 (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Read error: Connection reset by peer [23:05] New position from 03U4B-2 after 0311 hours silence - 12https://tracker.habhub.org/#!qm=All&q=U4B-2 [23:13] dude12312414 (~test@gateway/tor-sasl/dude12312414) joined #highaltitude. [23:59] New vehicle on the map: 03BB09 - 12https://tracker.habhub.org/#!qm=All&q=BB09 [00:00] --- Fri Apr 24 2020