op25

Hey Guys! In the last week or so all of my OP25 radios tuned to 773.84375 have stopped receiving. Could anyone check if that frequency is active still? I've tried multiple backup frequencies and still hit nothing. I've tried several different SDR dongles as well. Here is an example from the...

Hi all, I'm very new to the space and just getting started. I've appreciated the resources here in the forums but I seem to have a problem that I've been struggling with for the past several hours. I have a RTL-SDR V3 hooked up to my Raspberry Pi 3B+ and have gone through the steps from here...

Hi All, Is anyone running the new version of OP25 (Boatbod's fork) in the SJ area? I would like a favor. OP25 has a log function that writes to a file and would like to review those details. thanks!

Good afternoon! This is my first post on the forums here so bear with me please. I have a Raspberry Pi 4 with 4G ram and have largely succeeded in getting OP25 installed, started, and tracking my local police P25 system. Despite it seeming to perfectly track transmissions and switch to the...

I'm considering adding a second dongle to my computer running OP25 and I'm having trouble finding the instructions to do this. Is running 2 instances of OP25 and having both outputs feed the same headphone jack very difficult?

I just discovered the OP25 priorty setting and it works great! I understand that Priority 1 is the highest and 3 is default. My question is, are 1,2 and 3 the only valid levels of priority? What is the range of the priority setting, is there a valid priority 4 or 5....? Thanks!

For the past couple months I have been brewing a significant update to op25 with a lot of help from members wgbecks & maus92 along with some generous folks in the background how allowed me to run development code on their systems in MD and NJ. As a result I am pleased to announce that the...

I've had a complaint about an intermittent issue where audio is garbled, I'm including a link to see if anyone can identify what may be the issue. Google Drive Link to Example Audio Fresh install as of 5/26/20 running on pi4 with NooElec NESDR Smart v4 SDR ./rx.py --args 'rtl' -N 'LNA:35' -M...

I'm trying to diagnose some tuning errors and it would be nice if I could load the webpage on a remote machine. The pi is headless so I would have to connect it to a monitor. Is that possible at all? Thanks much!!!

Hi All! I'm having the same issue as this thread: OP25 Audio Slow and Choppy I'm using a brand new RPI 4b (1gig) and new NooElec NESDR smart v4 running raspbian buster. I am trying to listen to the North Fulton Regional Radio System (NFRRSA). My first setup had audio that sounded terrible, so...

I just added the ability for op25 to send sound to the PulseAudio system in lieu of ALSA. This may or may not be a good thing depending on your Linux system as it seems some - notably RPIs of varying flavors - have issue with Pulse permissions, particularly it seems when you are running them...

In an effort to make it just a little bit easier for people to set up their trunk.tsv files, I have created a small helper application called "cfgtrunk.py" which facilitates changing parameters without having to use a text editor. It's far from foolproof, but is easier than vi and less error...

Hey, Thanks to boatbod's setup, OP25 is running nicely on an old laptop I had running Ubuntu 18.04. The only weird issue is that it seems like the SDR's noise floor's do not change significantly when messing with the -N 'LNA:xx' setting in OP25. The noise floor from what I have seen in GNU...

I'm in an odd situation.. our dispatchers all of a sudden got QUIET and they have been for a while now. The agencies haven't said anything to encourage them to raise the volume or anything, but they are hard to hear both on OP25 and my SDS100. Is it possible to increase volume by their radio...

I have ported Max's recently announced "-X" tracking code to the boatbod op25 repo. After experimenting with it a bit I changed the way the frequency corrections are handled so that it utilizes the source device's ppm correction then makes residual fine tuning adjustments much as if you had...

Hi Guys, I ‘m running this on rapsberry pi and I ‘ve tried the following and they come up with very similar results. It will run for 1-15 minutes and then start throwing tuning errors. Please help! Here are the two I‘ve tried so far: ./rx.py -l http:127.0.0.1:8080 --args 'rtl' -N 'LNA:47' -S...

I have new Project need some advice, I like to set up a broadcastify stream, I have an Airspy R2 SDR our local police uses P25 Phase 1 trunk system they will be switching over to Phase 2 in June of this year, I'm looking for something where I could use a Raspberry PI with Sdrtrunk or OP25? like...

I am trying to receive 700Mhz Nationwide Interoperability Channels on my Raspberry Pi3B with OP25. Since these channels, such as 7CALL50 are P25 simplex RX channels with NAC 0xF7E, is that possible to do with the existing hardware and software that I have? I don't want a heavyweight or resource...

When using ./multi_rx.py dmr_rtl_example.json to recieve DMR, I get this error: Traceback (most recent call last): File "./multi_rx.py", line 402, in <module> rx = rx_main() File "./multi_rx.py", line 384, in __init__ config = json.loads(open(options.config_file).read()) TypeError...

Okay don't laugh too hard! :) I have an older version of OP25 running well. I want to update to the latest version to be able use the web interface feature. What terminal commands do I need to enter to update OP25 without messing up what I already have configured and set-up? Thanks!