op25

I recently built a mobile radio scanner to monitor P25 trunk communication systems based on OP25 (Boatbod). I have been working on the project for 3 years and am finally happy to say that it's done! I am using a NooElec SMArt v3 dongle as hardware, Raspberry Pi 3B for signal processing, 3.5"...

I am having an issue with OP25 (Boatbod) that it crashes mid conversation at random times. Sometimes it runs for 3hrs without any issues and sometimes it crashes after 10 mins. I added below a copy of my stderr.4 file (I had to cut some parts because the message was too long) Using Python...

How can I increase the control channel hunting speed on OP25 (Boatbod)? I programmed a lot of frequencies and would like to increase the hunting speed in order to make it more efficient.

Hi everyone! Since I've received many messages asking about the implementation of ADP decryption in OP25 (Boatbod), I decided to post it publicly here. I also received some messages stating that my code didn't work in the latest versions of OP25, therefore it wasn't possible to rebuild the...

I upgraded Ubuntu 21.10 LTS to 22.04 LTS (running it on a VM) and now OP25 crashes. I opened the stderr file and found this: Using Python /usr/bin/python3 Traceback (most recent call last): File "/home/pi/op25/op25/gr-op25_repeater/apps/./multi_rx.py", line 55, in <module> from gnuradio...

The goal is to create a setup guide with complete exact steps to get OP25 working in Windows. This is a first draft (attached) to be revised based on input from: Current OP25 users Those who've never used OP25 OP25 developers, contributors, and other experts. After revisions, the draft can be...

I'm trying to create a start interface where a user can select systems he wants to monitor on OP25 as an add-on. Basically, the buttons on the interface will launch a command script on the terminal which will start OP25 on the selected system. I designed the interface but now need help to...

I'd like to add ADP decryption capability to OP25. I have been doing research for a while about RC4 cipher (a.k.a. Motorola ADP), so I do know how the cipher works. I have some experience programming in C, so I'd like to know where I should start. It would be great if Boatbod gave me a hand with...

What libraries are required to allow Op25 plots to work? I have successfully operated Op25 on Ubuntu-16, but now am operating on a much trimmed Linux distribution and am obviously missing a library or two. Op25 will start up normally, but will not bring up any of the plots when an appropriate...

I'm only trying to tune into specific frequencies manually and decode their audio. I'm already doing this with gqrx and dsd, by broadcasting with UDP and inputting the data into dsd as such (it works just fine): socat udp-listen:7355 - | ./dsd -i - -o pa:1 I'm trying to do the same with...

Howdy All, I recently took over Development for Trunk Player and I am happy to announce myself (@maxwellDPS) and @NebraskaCoder are bringing life back to the project! Development is in progress This will be a complete rewrite of Trunk Player, all from scratch! The new version will be all API...

I really enjoy using the Op25 SDR software, so i decided to interface a oled display to show the Alfa Tags, I do like the different terminals programs from BoatBod and KA1RBI and all of the people that made this possible. I wanted a way to display the Alfa tags while my computer monitor were...

I bought a Raspberry Pi 4 (8 gig) to run SDRs on, and other stuff. I have 2 SDRs, a NoElec using an 820T chip, and a DVB with an 820T2. Have OP25 set up and working, but when I try the command line to get the NAC, I get several errors, starting with PLL not locked, and "value error, need more...

I would like to change my OP25 whitelist based on the time of day. I'm running a single instance of OP25 in terminal mode launched with the command line: ./rx.py --args 'rtl' -N 'LNA:47' -S 1000000 -o 25000 -T trunk.tsv -V -w -2 -U 2>stderr.2 --crypt-behavior 2 In the evenings, I change my...

Hey all, I was wondering if there was a way I could export the talkgroups that OP25 receives into another python file so I can use them for a project. Is this at all possible? I know I would have to import a file but dont know which one to use. Thanks Guys

Hey again all. I am so close to having my OP25 fully set up, but I am running into one final issue. I constantly get PCM Underuns when listening to A Motorola SmartZone™ System using multi_rx.py and I dont know why. Let me know anything you need form me, logs, start command line etc. Thank all...

Hey all, I'm loving OP25 and use it to monitor Multiple Counties in areas that I take my Pi with me to, and was wondering if I could make folders for a Specific Area. for example: In the main op25/op25/gr-op25_repeater/apps folder I would have: County1.sh County2.sh and then I would have folders...

Hey there everyone. I was wondering if it would be possible to truly track a OP25 Simulcast system using multi_rx.py. Like just have one SDR Stay on the control frequency and have the other Tune around. Let me know if this is possible or if Im just crazy. Right now I have it set up but its just...

I'm tryin to get OP25 running on Raspberry Pi 4 with Buster. When I launch the app, my .tsv tgid file is not loading. I get the following errors: ./op25_millersport.sh Using Python /usr/bin/python2 gr-osmosdr 0.1.4 (0.1.4) gnuradio 3.7.13.4 built-in source types: file osmosdr fcd rtl rtl_tcp...

Again- thank you in advance for any assistance! Making progress here...but getting no audio. I must be missing something! I've got OP25 monitoring the control channel I want and it appears that liquidsoap is sending data to Winamp: Winamp is getting meta info from OP25 (the talkgroup is in...