Tetrapol-kit

tetrapol-kit@brmlab.cz

62 discussions

tetrapol dump not found and RPCELP question
by atariman＠laposte.net 10 Oct '17

10 Oct '17

Hello, i'm correctly installed the files, fréquencies found with RTL-SDR are ok when i launch ./tetrapol_detector.sh and in the TMP Folder i fond JSON files , LOG Files et BITS files but when i open a log file i read : ./tetrapol_detector.sh: 53: ./tetrapol_detector.sh: ../build/apps/tetrapol_dump: not found i don't found the tetrapol_dump file. What is the problem ? I think you'll write a better documentation. And my second question (i you can resolve my missing tetrapol_dump file) is how to use and install the codec RPCELP, and what are the type of files i must using with it ? Thank you.

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Re: [Tetrapol-kit] TETRAPOL
by Jan Hrach 02 Aug '17

02 Aug '17

> S rádiom môžem komunikovať pomocou STC protokolu, avšak na väčšinu CODOP rádio nereaguje, resp. spätne posiela chybové hlásenia. Chcem Vás poprosiť o radu. Dokážem s týmto protokolom vôbec ovládať rádio, robiť hovory, posielať SMS, pracovať v DMO/TMO atď. alebo som na zlej ceste a mal by som sa zamerať na iný spôsob. Tak to fakt vůbec netuším… Při konfiguraci toho našeho byl nějaký strašný opruz s nekompatibilním oficiálním software a vyžádalo si to zčásti zreverse-engineerovat komunikační protokol po sériáku a něco tam on-the-fly patchovat. Lidi na tetrapol-kit@ budou vědět víc. > Rádio by sa malo automaticky registrovať na slovensku Tetrapol sieť (Sitno), či sa mýlim? Je potrebné poznať nejaké inicializačné parametre? Čekal bych, že bude potřeba nějaký klíč. On 2.8.2017 14:27, Patrik Šťastný wrote: > Dobrý deň, > píšem Vám ohľadom Tetrapol siete. Ako fanúšik rádiových sietí som si z Ebay-u zaobstaral dve Tetrapol rádia EADS BER-B RADIO LB+ UM (bez konzoly). Pomocou dokumentov dostupných na officialnej stránke Tetrapol.com som sa dostal na aplikačnú úroveň. S rádiom môžem komunikovať pomocou STC protokolu, avšak na väčšinu CODOP rádio nereaguje, resp. spätne posiela chybové hlásenia. Chcem Vás poprosiť o radu. Dokážem s týmto protokolom vôbec ovládať rádio, robiť hovory, posielať SMS, pracovať v DMO/TMO atď. alebo som na zlej ceste a mal by som sa zamerať na iný spôsob. > Rádio by sa malo automaticky registrovať na slovensku Tetrapol sieť (Sitno), či sa mýlim? Je potrebné poznať nejaké inicializačné parametre? Ďakujem za odpoveď. > > S pozdravom > Patrik Šťastný -- Jan Hrach | https://jenda.hrach.eu/ GPG CD98 5440 4372 0C6D 164D A24D F019 2F8E 6527 282E

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Re: [Tetrapol-kit] Error ./voice_frame.py
by Jan Hrach 17 Jul '17

17 Jul '17

I don't know anything about the codec (expect that is is not finished and does not work anyway), try asking on the mailing list. On 16.7.2017 18:11, Telliez Landry wrote: > Hello, > > > I encounter an error at launching > > ./voice_frame.py > > > Traceback (most recent call last): > File "./voice_frame.py", line 105, in <module> > Frame = get_voice_frame (line) > File "./voice_frame.py", line 67, in get_voice_frame > J = json.loads (json_row) > File "/usr/lib/python3.5/json/__init__.py", line 319, in loads > Return _default_decoder.decode (s) > File "/usr/lib/python3.5/json/decoder.py", line 339, in decode > Obj, end = self.raw_decode (s, idx = _w (s, 0) .end ()) > File "/usr/lib/python3.5/json/decoder.py", line 357, in raw_decode > Raise JSONDecodeError ("Expecting value", s, err.value) from None > Json.decoder.JSONDecodeError: Expecting value: line 2 column 1 (char 1) > > > What is the solution to this problem > > Thank you for your reply > > Regards, -- Jan Hrach | https://jenda.hrach.eu/ GPG CD98 5440 4372 0C6D 164D A24D F019 2F8E 6527 282E

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Re: [Tetrapol-kit] Information about transmit
by Jan Hrach 07 Jul '17

07 Jul '17

Hi, rtl-sdr does not support transmitting. There were some experiments with Raspberry TX, I don't know if it worked. On 7.7.2017 12:16, Telliez Landry wrote: > Hello, > > I would like to run (tetrapol_tx.grc) the problem it only works for the > BladeRF I only have a rtl-sdr key how to edit the grc file to make it work with > > > thank you -- Jan Hrach | https://jenda.hrach.eu/ GPG CD98 5440 4372 0C6D 164D A24D F019 2F8E 6527 282E

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Re: [Tetrapol-kit] RPCELP codec
by P 16 Jun '17

16 Jun '17

The problem is RP-CELP specification for TETRAPOL is incomplete, even the bit order and meaning in voice frame is unknow. The goal is replace A/D converted in tetrapol radio which we posses and send well defined audio signals and sniff encoded audio on radio data bus. We already did this with analog signals using external audio input a got almost all bits solved, but few are still missing. This technique can be also helpfull to find out where radio does encryption and try to extract the encryption algorithm. We have already some usefull setups and few more informations which are not yet published, but lacking required hardware and time to do this. PJ On Fri, Jun 9, 2017 at 9:21 , Алекс Тереж <alextereg(a)gmail.com> wrote: > Good day Jiří Pinkav,, I wanted to know more about the 32-MHz > signal analyzer for a 34 channel? Why, with such characteristics, > maybe I have not yet fully understood your idea, what is its essence, > maybe I will be able to help you something! > > Best regrets, Alex White > > 2017-06-01 18:32 GMT+03:00 Алекс Тереж > <alextereg(a)gmail.com>: >> Ok, I anderstend you, wath can help you and your comand to create >> a working RP-CELP codec? And wath you meen said about @t least 34 >> channels at 32 MHZ would be required to get the data out of bus) and >> this >> seems to be blocker for now@. Do you have 2 tetrrapol radiostation, >> if yes can you sent to men voice trafic and record you voice talk of >> this station! >> >> With best regards, >> AW >> >> 2017-06-01 18:15 GMT+03:00 Pinky <j-pi(a)seznam.cz>: >>> Hi, >>> >>> RP-CELP codec is not finished, a lot of stuff is still missing to >>> reverse- >>> ingeneer. Implemented is only the first part of codec and even >>> here are >>> missing correct coefficients. >>> >>> We have some hardware but are missing digital signal analyzer (at >>> least 34 >>> channels at 32 MHZ would be required to get the data out of bus) >>> and this >>> seems to be blocker for now. >>> >>> Thanks for interest, if You can imagine anny cooperation with this >>> project, >>> please let us now at tetrapol-kit(a)brmlab.cz >>> >>> With best regards, >>> JP >>> >>> >>> On Thursday, 1 June 2017 16.49.53 CEST Алекс Тереж wrote: >>> > Good day *Jiří Pinkav* >>> > >>> <https://brmlab.cz/gitweb/?p=rp-celp.git;a=search;h=783b8c2e538d7fa7a6651df4 >>> > 4ccf9010055b0ca9;s=Ji%C5%99%C3%AD+Pinkava;st=author>, may name >>> Alex White, i >>> > want asked about use tetrapol-kit, namelly how to use and >>> tersting rp-celp >>> > codec, is it work in uncrypted voice frame? At the moment, I'm >>> good at >>> > accepting, decoding and forming the output stream of frames in >>> 120 bits, >>> > but I can not test the possibility of correct speech processing >>> by the >>> > RPCELP codec even on unencrypted freem voices, because I do not >>> have >>> > TETRAPOL stations yet. >>> > >>> > Best regrets, Alex White >>> >>> >> >

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Re: [Tetrapol-kit] RPCELP codec
by Pinky 01 Jun '17

01 Jun '17

Hi, RP-CELP codec is not finished, a lot of stuff is still missing to reverse- ingeneer. Implemented is only the first part of codec and even here are missing correct coefficients. We have some hardware but are missing digital signal analyzer (at least 34 channels at 32 MHZ would be required to get the data out of bus) and this seems to be blocker for now. Thanks for interest, if You can imagine anny cooperation with this project, please let us now at tetrapol-kit(a)brmlab.cz With best regards, JP On Thursday, 1 June 2017 16.49.53 CEST Алекс Тереж wrote: > Good day *Jiří Pinkav* > <https://brmlab.cz/gitweb/?p=rp-celp.git;a=search;h=783b8c2e538d7fa7a6651df4 > 4ccf9010055b0ca9;s=Ji%C5%99%C3%AD+Pinkava;st=author>, may name Alex White, i > want asked about use tetrapol-kit, namelly how to use and tersting rp-celp > codec, is it work in uncrypted voice frame? At the moment, I'm good at > accepting, decoding and forming the output stream of frames in 120 bits, > but I can not test the possibility of correct speech processing by the > RPCELP codec even on unencrypted freem voices, because I do not have > TETRAPOL stations yet. > > Best regrets, Alex White

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M9620 power supply
by kévin B 23 Mar '17

23 Mar '17

Hello. I would like to plug my g2 radio with a 4.8 V power supply. I plug the -/+ pins but nothing happens, no way to start it. I found the power pins with a simple voltmeter. I had saw this explanations: http://brmlab.cz/project/sdr/tetrapol/g2 but I don't understand if I have to use an existing battery for "id". I have 2 batteries that have worked but now empty. I would like to have some experts advices. Best regards.

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Re: [Tetrapol-kit] Tetrapol-kit Digest, Vol 9, Issue 5
by Evgenii Royzman 11 Mar '17

11 Mar '17

Hi, Thank for this files, works great, i have the same results as you sent! But i yet cant understood with value of sync after demodulation, why is it "1, 0, 1, 0, 0, 1, 1" (7-bit)? I look in standard PAS 0001-2 6.1.5.2 (voice) and PAS 0001-2 6.2.5.2 (data) and there 8-bit sync with value 0, 1, 1, 0, 0, 0, 1, 0. >From previous question about IDE, now using QT, very user friendly, attach Makefile and go) P.S. Would be very useful if somebody have files with voice, interesting compare. Regards, Evgenii 2017-03-11 12:04 GMT+02:00 <tetrapol-kit-request(a)brmlab.cz>: > Send Tetrapol-kit mailing list submissions to > tetrapol-kit(a)brmlab.cz > > To subscribe or unsubscribe via the World Wide Web, visit > https://brmlab.cz/cgi-bin/mailman/listinfo/tetrapol-kit > or, via email, send a message with subject or body 'help' to > tetrapol-kit-request(a)brmlab.cz > > You can reach the person managing the list at > tetrapol-kit-owner(a)brmlab.cz > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Tetrapol-kit digest..." > > > Today's Topics: > > 1. app/tetrapol_dump (Evgenii Royzman) > 2. Re: app/tetrapol_dump (JS) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 9 Mar 2017 11:56:57 +0200 > From: Evgenii Royzman <dzhudzhan(a)gmail.com> > To: tetrapol-kit(a)brmlab.cz > Subject: [Tetrapol-kit] app/tetrapol_dump > Message-ID: > <CAEixV-L5VTbxktfQz3Au7fmbrm-5mesznTq64uu7zL9TsV4v8w@mail. > gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi guys! > > You did really cool work with tpol. > > I'm also trying something with this one and you results is absolutely find > for my! > > I have already demodulated signal and would decode it with your > app/tetrapol_dump, is it real or i have to use binary only after your > demod? > > Regards, > > Evgenii >

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Re: [Tetrapol-kit] app/tetrapol_dump
by JS 11 Mar '17

11 Mar '17

Hi, please keep mailinglist in cc, for others to find out. in tetrapol_dump is implemented SCR detector. It tries all 128 possible values and finds out wich one works. By design SCR is system constant for controll channels (CCH) and for transport channels (TCH) is broadcasted on CCH. I have attached small file with demodulated data and example outputs, hope this help a bit. It is CCH with system_info and few other messages. With best regards, JS On Fri, 10 Mar 2017 10:22:52 +0200 Evgenii Royzman <dzhudzhan(a)gmail.com> wrote: > Hi, > > Very sad. > > But in plan I want to realize it and ready for reverse. > > Yet have several question: > > 1. do you have records with known parameters. > > This need me for debug my decoder subsystem. > I use the same sequence (descrambling, diffdec(UHF, VHF), > deinterleaving(UHF, VHF), ch.decoding (based on Viterbi described in > https://www.amazon.com/Digital-Communications-Fundamentals-Applications-2nd…), > crc, descr), but unknown parameters of my records confusing me, > especially metrics after Viterbi (no zero values for every SCR > [0,127]). > > 2. can i get bitstream from your system after ch.decoder by tee, > cose i use something like "./tetrapol_dump -i /myPath/1.bin -b UHF -t > TCH -d DOWN | tee /myPath/output.bin" and in result have only part of > terminal info after "Exiting."(you can see it in previous attaches). > Or even better get bitstream from different parts, after > deinterleaving for example. > Or is this real only after change source code and recompile it? If > true, back to question from previous letter about IDE (i think about > Eclipse CDT with switch to your makefile). > > Will be thank for any feedback. > > Regards, > > Evgenii > > 2017-03-09 18:36 GMT+02:00 JS <jiri.svoboda(a)yandex.com>: > > > vocoder is not producing anithing listenable, need a lot of work > > (and a bit of reverseingeneering). > > > > JS > > > > > > On Thu, 9 Mar 2017 17:39:46 +0200 > > Evgenii Royzman <dzhudzhan(a)gmail.com> wrote: > > > > > Hi, > > > > > > Thank for advice, now I can see some results during decoding and > > > some tee. Will try vocoder. > > > > > > P.S. If you interesting in attach examples of my tests. > > > > > > Regards, > > > > > > Evgenii > > > > > > 2017-03-09 14:40 GMT+02:00 Evgenii Royzman <dzhudzhan(a)gmail.com>: > > > > > > > Sorry sent press Send instead attach) > > > > > > > > One more file in attach. > > > > > > > > I also wanted to know what IDE you use to debug your project, > > > > and maybe you have some example of records I/Q or binary after > > > > demodulation with known parameters (SCR, -b, -t, -d) I would be > > > > very pleasure! > > > > > > > > I try my own system in java and this sources very imported for > > > > me. > > > > > > > > P.S. attached records from > > > > http://www.sigidwiki.com/wiki/Tetrapol > > > > > > > > Sorry for separate letters) > > > > > > > > Regards, > > > > > > > > Evgenii > > > > > > > > > > > > 2017-03-09 14:29 GMT+02:00 Evgenii Royzman > > > > <dzhudzhan(a)gmail.com>: > > > >> HI, thank for quick response! > > > >> > > > >> As I understood, tetrapol_detector.sh set parameters for > > > >> receive signal from air via sdr and demodulate it. My binary > > > >> file already demodulated by another demodulator (file in > > > >> attach). > > > >> > > > >> My question about, can I decode my record with you decoder > > > >> (tetrapol_dump) and which extension, reverse, invert e.t.c? Or > > > >> I anyway need to install tetrapol_detector.sh? > > > >> > > > >> I have tried to use command like: "./tetrapol_dump > > > >> -i /myPath/1.bin -b UHF(and VHF) -t TCH(and CCH ) -d DOWN(and > > > >> UP) | tee /myPath/output.bin" but at once had "Exiting." on > > > >> next line with no any info in terminal and zero output.bin. > > > >> > > > >> 2017-03-09 13:33 GMT+02:00 JS <jiri.svoboda(a)yandex.com>: > > > >> > > > >>> Hi, > > > >>> > > > >>> after demodulation you should use tetrapol_dump. I suggest > > > >>> you to study tetrapol_detector.sh which shows what tools are > > > >>> used and what they do. > > > >>> > > > >>> With best regards, > > > >>> JS > > > >>> > > > >>> On Thu, 9 Mar 2017 12:21:10 +0200 > > > >>> Evgenii Royzman <dzhudzhan(a)gmail.com> wrote: > > > >>> > > > >>> > Hi guys! > > > >>> > > > > >>> > You did really cool work with tpol. > > > >>> > > > > >>> > I'm also trying something with this one and you results is > > > >>> > absolutely find for my! > > > >>> > > > > >>> > I have already demodulated signal and would decode it with > > > >>> > your app/tetrapol_dump, is it real or i have to use binary > > > >>> > only after your demod? > > > >>> > > > > >>> > Regards, > > > >>> > > > > >>> > Evgenii > > > >>> > > > >>> > > > >>> > > > >> > > > > > > > > > >

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app/tetrapol_dump
by Evgenii Royzman 09 Mar '17

09 Mar '17

Hi guys! You did really cool work with tpol. I'm also trying something with this one and you results is absolutely find for my! I have already demodulated signal and would decode it with your app/tetrapol_dump, is it real or i have to use binary only after your demod? Regards, Evgenii

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