op25

DES-OFB traffic decryption (known key) is now supported on boatbod's fork. How to get it working? - Define key variables (16 hex chars) in the key file (such as example_keys.json). Make sure to specify 0x81 as algid. - Authorize encrypted traffic sync by specifying crypt_behavior as 0 or -1...

Hi, I've recently gotten the RTL-SDR V4, and I have everything setup "correctly", however every time I run the command ./rx.py --args 'rtl' -N 'LNA:47' -S 2500000 -x 2 -f 857.2625e6 -o 17e3 -q 2 after a reset of the system or closure of the terminal I get the message ModuleNotFoundError: No...

2024.Sep.02 Pursuing clarification on the current op25 Raspi build instructions. Raspi 4B with full 64-bit debian OS [Bookworm] image with: cmake [v3.25.1] gnuradio-dev [v3.10.5.1-3] gqrx [v2.17.5-4-g25fdbb5] Is this op25 install procedure correct ? $ git clone GitHub - boatbod/op25: Fork of...

Hi- I'm working on getting op25 set up to monitor a couple of local agencies which recently switched over from NBFM to non-trunked P25 Phase I systems. I have 2 RTL-SDR dongles connected to a Raspberry PI to initially capture 2 agency channels. My first step was to get two separate instances...

I have been trying all day to get this to work on a pi 4 i have installed it and deleted it 3 times but i keep getting this same screen. when i first install op25 it will kinda work it just doesn't show the tsbks counting and it won't show the NAC. it starts this when i edit the trunk.tsv and...

This is a project that I've been working on for a long time now on and off. It's nowhere near done and I have a lot left to re-implement but here it goes. The OP25MCH or OP25 Mobile Control Head is an Android app that is written in Python with Kivy that allows you to remotely control an...

Hello, I am running OP25 on Ubuntu 22.04 and when I run my local P25 Phase II system, empty voice channels appear when synced to a P25 Phase II patch talkgroup. I can confirm that the voice channels are not part of the system/site. I managed to record how these voice channels appear. I was...

I'm trying to run a weird experiment where I have a recording of an entire segment of a voice channel of a p25 system in my area and I'm wondering if I can demodulate it with op25. This is my current setup that is not working does anyone have any suggestions or am I doing this all wrong? I want...

So running OP25 from standard shell works fine and use the - U && -O pulse option makes OP25 appear in the Pulse Mixer as OP25. The problem I am having is if I run it as a service, (which does work) although I get sound output I get no slider and furthermore, it does create a problem with...

I am looking for the following dashboard for OP25. When I run my web interface with Boatbod, I get the usual green/white interface. I am looking for instructions on how to have it display the this one: Thank you in advance!

OP25 is very configurable and I think that for me this is adding some confusion. I am attempting to configure a P25 simulcast system which includes some TMDA talk groups. The site I am trying to configure has 12 frequencies with 3 of them configured as control channels. The split for the...

I upgraded my Rpi 3B+ to Bookworm. I've been able to build Boatbod's version of OP25 pulling the gr3.10 branch with no issues. This works great. I've tried building the Osmocom version of OP25 from a fresh install of Raspi Bookworm both 32 and 64 bit. I get tons of build errors, not...

BLUF: Why can I receive a P25 channel regardless of the modulation type (C4FM vs CQPSK) but while scanning the radio will only land on this channel if the modulation is set to CQPSK? ~~~~~~~~~~~~~~~~~~~~ I have an Astro Spectra that mostly gets used as a scanner for conventional channels, a...

Hello RR, Currently exploring OP25 and I have some question in regard to the log output. Questions: The number at the end of the IMBE line after errs are the number of error in the line ? What is "prepare" after p25_crypt_algs ? Thanks

Hi everyone, I've been using the boatbod version of OP25's rx.py to listen to Seattle's PSERN with no major issues for some time but wanted to see if I could improve the performance by adding a second SDR and moving up to multi_rx.py. However, I am not hearing any audio and the decode rate has...

My other thread was getting real long and convoluted so I decided to start a new thread. First off let me apologize I'm not retired and I typically work 60-70 hours a week so I have a small window to work on op25. What makes it so frustrating is that its supposed to be easy and user friendly but...

Hello all, I am running OP25 on a Pi 3B and sometimes OP25 bugs. I was able to catch that in the stderr file this is what I found: 09/23/23 17:23:10.515841 [0] releasing: tg(50003), freq(772.256250), slot(1), reason(duid15) 09/23/23 17:23:11.738840 [0] voice update: tg(50003), rid(0)...

Hey all, so this question is directed at @boatbod or maybe someone who has played with his fork of OP25 and figured out these questions. So running on latest LTS Ubuntu(i5, 16gb ram, ssd, external graphics, basically overkill), the 2 system 2 cfg json with dual sound cards piping one system to...

I'm trying to create a channel configuration for a Tier II DMR channel using OP25 (Boatbod fork). I'm not getting any audio but it seems I am getting sync (looking on the sterr.2 file, see attached). This is what I'm writing on the terminal: ./multi_rx.py -v 10 -c dmr_channel_test.json 2>...

Can't seem to get alpha tags to show up and I'm guessing I'm missing a step. Watching the liquidsoap logs I'm getting metadata update error 404. Any Suggestions?