Tetrapol-kit

tetrapol-kit@brmlab.cz

2 participants
62 discussions

Re: Tetrapol-kit Digest, Vol 31, Issue 1
by J-Ph Bct 13 Oct '25

13 Oct '25

Hello. No, you can't. Chers. Le lun. 13 oct. 2025, 12:00, <tetrapol-kit-request(a)brmlab.cz> a écrit : > Send Tetrapol-kit mailing list submissions to > tetrapol-kit(a)brmlab.cz > > To subscribe or unsubscribe 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. tetra (1Abundance) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 24 Jul 2025 08:08:26 +0000 > From: 1Abundance <1abundance(a)proton.me> > Subject: [Tetrapol-kit] tetra > To: "tetrapol-kit(a)brmlab.cz" <tetrapol-kit(a)brmlab.cz> > Message-ID: <5ocLjN5hhF1nAo-6GUyFcRfKh1QQO3fNM_8e2HtcvGiO6yY0UABeL3k0h > p32KL2enWOMArCcXB95e9Gxl1z56VnUmimoLAKTNbrawNYb2_8=(a)proton.me> > Content-Type: multipart/alternative; > boundary="b1=_gj4HxJxHeViqknOAU0atDSt0oZbaYOgbySvWkJtUh8" > > Hello , I'm new to SDR can receive tetra location rf signals ? Not > encrypted message just uplink signals ? > > Sent with [Proton Mail](https://proton.me/mail/home) secure > email.

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tetra
by 1Abundance 24 Jul '25

24 Jul '25

Hello , I'm new to SDR can receive tetra location rf signals ? Not encrypted message just uplink signals ? Sent with [Proton Mail](https://proton.me/mail/home) secure email.

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subscribe
by niekt0 20 Sep '23

20 Sep '23

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freeze tetrapol-tx
by fe8769 23 Jun '23

23 Jun '23

Hello We have trouble using tetrapol_tx with gnuradio 3.10/3.11 . Transmit is freezing for non reason . Hackrf is the latest firmware version . Working fine with codec . Working fine with gnuradio 3.7 . Sometimes it works fine without freezing but most of the time we have to restart . Could be helpful for us to transmit with the limesdr mini first version,plutosdr and ettus B200. Thanks for help --

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demod_tetrapol_tx.grc isn't working with Dragon_OS_focale R28
by fe8769 26 Jan '23

26 Jan '23

demod_tetrapol_tx.grc isn't working with Dragon_OS_focale R28 As I generate the demod_tetrapol_tx.py, I have the following errors def __init__(self, args=, freq=380000000, freq_offs=200000, in_file=, out_file=, oversample=10, ppm=0): gr.top_block.__init__(self, "TETRAPOL TX", catch_exceptions=True) No quote at in_file and out file on line 175 on python file ef main(top_block_cls=tetrapol_tx, options=None): if options is None: options = argument_parser().parse_args() tb = top_block_cls(freq=options.freq, freq_offs=options.freq_offs, oversample=options.oversample, ppm=options.ppm) def sig_handler(sig=None, frame=None): tb.stop() tb.wait() there are no arguments for infile and outfile here is what it look like with previous version (gnuradio 3.7) def main(top_block_cls=tetrapol_tx, options=None): if options is None: options, _ = argument_parser().parse_args() tb = top_block_cls(args=options.args, freq=options.freq, freq_offs=options.freq_offs, in_file=options.in_file, out_file=options.out_file, oversample=options.oversample, ppm=options.ppm) tb.start() tb.wait() Even with modifications still can't work If some one has a good demod_tetrapol_tx.py workin Thanks --

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Re: [Tetrapol-kit] Tetrapol-kit Digest, Vol 28, Issue 1
by Jean-Philippe Buchet 29 Aug '22

29 Aug '22

Hello, Thank you. I will have a look asap Regards ! [image: width=] <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> Sans virus.www.avast.com <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campai…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> Le dim. 28 août 2022 à 12:01, <tetrapol-kit-request(a)brmlab.cz> a écrit : > 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. Re: TP Kit can't longer run (SysOp) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 27 Aug 2022 22:17:08 +0200 > From: SysOp <sysop(a)centrum.cz> > To: tetrapol-kit(a)brmlab.cz > Subject: Re: [Tetrapol-kit] TP Kit can't longer run > Message-ID: <90bf5433-bc2a-440e-3a29-a11695645829(a)centrum.cz> > Content-Type: text/plain; charset=UTF-8 > > Hello, > I've updated gnuradio scripts to run with gnuradio v 3.11. > > Regards > SysOp. > > On 22/07/2022 14:10, Jean-Philippe Buchet wrote: > > Hello, > > The gru module was removed in gnuradio 3.9 and 3.10, TP-kit can't longer > run. > > The demod.py breaks.. (it misses some filters definitions ). > > > > . For some more info see: > > > > https://github.com/gnuradio/gnuradio/issues/1591 > > https://github.com/gnuradio/gnuradio/pull/3815 > > https://github.com/gnuradio/gnuradio/pull/3936 > > > > My knowledges skill is lo low to now what I can do . > > Regards, > > JPh > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Tetrapol-kit mailing list > Tetrapol-kit(a)brmlab.cz > https://brmlab.cz/cgi-bin/mailman/listinfo/tetrapol-kit > > ------------------------------ > > End of Tetrapol-kit Digest, Vol 28, Issue 1 > ******************************************* >

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TP Kit can't longer run
by Jean-Philippe Buchet 27 Aug '22

27 Aug '22

Hello, The gru module was removed in gnuradio 3.9 and 3.10, TP-kit can't longer run. The demod.py breaks.. (it misses some filters definitions ). . For some more info see: https://github.com/gnuradio/gnuradio/issues/1591 https://github.com/gnuradio/gnuradio/pull/3815 https://github.com/gnuradio/gnuradio/pull/3936 My knowledges skill is lo low to now what I can do . Regards, JPh

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Re: [Tetrapol-kit] TETRAPOL Devocoder
by landry telliez 11 Sep '21

11 Sep '21

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TETRAPOL Devocoder
by David Depierre 08 Sep '21

08 Sep '21

Hi, I'm looking for a TETRAPOL devocoder (if possible in C/C++ or Matlab). Have you developed one ? Thank you for your help. David

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Re: [Tetrapol-kit] Tetrapol-kit Digest, Vol 25, Issue 1
by Jean-Philippe Buchet 20 Jul '21

20 Jul '21

Thank you, I will try it :) Le mar. 13 juil. 2021 à 12:01, <tetrapol-kit-request(a)brmlab.cz> a écrit : > 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. Viterbi algorithm (guerlande) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 12 Jul 2021 12:22:28 +0000 > From: guerlande <guerlande(a)protonmail.com> > To: "tetrapol-kit(a)brmlab.cz" <tetrapol-kit(a)brmlab.cz> > Subject: [Tetrapol-kit] Viterbi algorithm > Message-ID: > > <mNHXs1wsv1ulfdSptrDEwGyd1MzRldHmDj-eRjLoj2IjupB3hFP-AZazVld78z1xy0OaPD2nAPnXxrxpAYxy5FoffkyFIObJif0bsz4b_3s=@ > protonmail.com> > > Content-Type: text/plain; charset="utf-8" > > Hi ! > Here is a first version of an error-correction using a Viterbi algorithm, > which correct more errors than the current frame_fix_errs(). > I put a limit on the errors (if there are too many errors, we suppose that > the frame is broken, otherwise too many "random packets" are considered > valid, since the CRC control has only 3 or 5 bits). >

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