Matt,
I am using an RTL SDR with my rx.py command line formatted <./rx.py --args 'rtl' --gains 'lna:49' -f 146.460e6 -S 1000000 -q 0 -D fsk4 -V –U>
but no joy. Please see the screen output below…. Any ideas? Are you sure that I don’t need some sort of trunk.tsv? How would one
input the desired NAC?
Thank you,
Bill, WA8WG
linux; GNU C++ version 6.3.0 20170221; Boost_106200; UHD_003.009.005-0-unknown
gr-osmosdr 0.1.4 (0.1.4) gnuradio 3.7.10
built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy soapy redpitaya
Using device #0 Realtek RTL2838UHIDIR SN: 00000001
Found Rafael Micro R820T tuner
[R82XX] PLL not locked!
gain: name: LNA range: start 0 stop 0 step 0
setting gain lna to 49
supported sample rates 250000-2560000 step 24000
Exact sample rate is: 1000000.026491 Hz
[R82XX] PLL not locked!
set_center_freq: 146460000
p25_demodulator::connect_chain() demod_type=fsk4
Project 25 IMBE Encoder/Decoder Fixed-Point implementation
Developed by Pavel Yazev E-mail: pyazev@gmail.com
Version 1.0 (c) Copyright 2009
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; see the file ``LICENSE'' for details.
op25_audio::open_socket(): enabled udp host(127.0.0.1), wireshark(23456), audio(23456)
p25_frame_assembler_impl: do_imbe[1], do_output[0], do_audio_output[1], do_phase2_tdma[0], do_nocrypt[0]
Exception in thread Thread-2 (most likely raised during interpreter shutdown):rock64@rock64:~/op25/op25/gr-op25_repeater/apps$
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com]
Sent: Monday, December 18, 2017 5:54 PM
To: op25-dev@yahoogroups.com
Subject: Re: [op25-dev] Recent changes
Hi Bill,
trunk.csv isn't required for conventional. Here's a few exmaple commands I have used with my USRPs (via UHD) and airspy:-
./rx.py -S 2500000 -o 50000 -q 2 -f 434075000 --args 'uhd' -D fsk4 -P fft --gains 'PGA:10'
./rx.py -S 1000000 -o 50000 -q 39 -f 434075000 --args 'uhd' --gains 'PGA:40'
./rx.py -S 2500000 -o 50000 -q 2 -f 438187500 --args 'airspy' -D fsk4 -P fft --gains 'MIX:5'
/rx.py -S 1000000 -o 50000 -q 2 -f 438187500 --args 'uhd' -D fsk4 -P fft --gains 'PGA:30'
Cheers,
Matt
On 19 December 2017 at 09:06, 'William Becks' wa8wg@centurytel.net [op25-dev] <op25-dev@yahoogroups.com> wrote:
OK. How does one setup the rx.py command line and/or trunk.tsv file if required to monitor conventional traffic? Can you please post example configuration?
Thank you,
Bill, WA8WG
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com]
Sent: Monday, December 18, 2017 2:43 PM
To: op25-dev@yahoogroups.com
Subject: Re: [op25-dev] Recent changes
rx.py can already monitor conventional traffic. In fact this feature was there before trunking was.
On Tue, 19 Dec 2017 at 06:55, 'William Becks' wa8wg@centurytel.net [op25-dev] <op25-dev@yahoogroups.com> wrote:
Graham,
Thank you so much for your efforts in the continuing development of op25. Especially for the recent coding changes allowing for FQDN --wireshark-host command line entry. The addition of the --nocrypt function was very innovative and solved an issue in my area where some talkgroups use a mix of clear, and encrypted transmissions that were previously impossible to reject without also filtering the clear voice transmissions as well..
I am personally very grateful for the work that you and Max have done to improve the code. If I could wish for one new feature, it would be to incorporate code allowing rx.py to monitor conventional IMBE non-trunked transmissions. Such a feature would be great for monitoring small non-trunked systems in addition to providing a great resource to monitor and analyze amateur P25 transmissions from MMDVM and similar devices.
Keep up the good work and best of holiday greetings!
Bill, WA8WG
From: op25-dev@yahoogroups.com [mailto:op25-dev@yahoogroups.com]
Sent: Saturday, December 16, 2017 7:08 PM
To: op25-dev@yahoogroups.com
Subject: [op25-dev] Recent changes
For my version of op25 I've just pushed a change to support using hostnames/fully qualified domain names (or straight IP addresses) in the --wireshark-host command line parameter (-W).
Earlier changes include the addition of the source radio id (where available) to the terminal screen, as well as indication of when encryption is active (only applies when using --nocrypt command line option).
Posted by: "William Becks" <wa8wg@centurytel.net>
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