op25

  1. P

    OP25 Should a Raspberry Pi Zero be fast enough for OP25?

    Hello all! I am trying to get OP25 running on a Raspberry Pi Zero. I can get OP25 to run, and I can get the audio piped over the network to my desktop PC so I can hear it. However, I have to turn the sample rate for rx.py way down to get OP25 to detect any transmissions, and even then, it...
  2. C

    OP25 Underruns

    I have OP25 running and its incredible. I am having an issue though with underuns. Has anyone else experienced this and what can be done to fix it? Oddly enough, I can listen to one site with no issues. If I change to a different site, I get the underruns. Any help would be greatly...
  3. P

    Boatbod OP25: patch for talkgroup name display

    Hello all! I bought a Realtek SDR from rtl-sdr.com a couple of years ago and played with it a bit at the time. I don't remember exactly what I tried, but it seemed P25 decoding was still pretty experimental then. Recently, I started playing with it again, using boatbod's version of OP25, and...
  4. E

    Receiving/Decoding Two P25 Channels Simultaneously via RTLSDR and OP25

    I've got OP25 (boatbod) rx.py working using an RTLSDR dongle, and the audio sounds great. Is there a way to simultaneously receive/decode more than one channel that falls within the RTL's 2.4MHz of spectrum being sampled? The two channels I'm interested in are not trunked channels. They were...
  5. S

    OP25 Talkgroup Priority

    Putting this question out there to see if anyone has had similar thoughts. I have OP25 successfully running on a dedicated xUbuntu machine and have explored it thoroughly. But I was wondering if implementing talkgroup priorities would be possible. I imagine this would be implemented in...
  6. J

    OP25 analog/digital mixed trunked systems?

    Is it possible to use OP25 for analog/digital mixed systems. Like Fleetnet Ontario or Fleetnet Manitoba, if so what is the NAC I use or command line argument?:confused:
  7. A

    OP25 and Los Angeles

    im tryimg to follow LAPD trunked systems but cant seem to find the TGIDs and Alpha tags to do so. im very new to OP25 but understand to follow trumked communications the TGID and Alpha tag is all i need i can see all the LAPD frequemcies but hardly any TGIDs can anyone familiar with usimg...
  8. G

    Need Advice Choosing Radio Type (Willis,TX)

    My son is a firefighter for MoCo ESD1. I live a stones throw from main station 91 or about an eighth of a mile from I45 on FM1097 west. I'm primarily interested in listening to fire/EMS in my area but I want to be able to pick up as many of the transmissions as possible. Anything out of my area...
  9. AD9O

    Op25 on Odroid XU4

    Hello: I am looking for a reasonably priced system to install Ubuntu and OP25 on to monitor a couple of P25 systems. I'm enjoying the computer-based scanning experience with DSDPlus on Windows, but it doesn't look like op25 will cross-compile (at least I don't see anyone having done it) on Win...
  10. J

    How to quickly create an OP25 USB boot drive (with persistent storage)

    Hi, Here is a brief summery of the process that I used to create a USB boot drive, based on the excellent GNU Radio live environment, to run op25 (scope.py, etc...). The whole process should take less than 15 minutes, resulting in a bootable GNU Radio environment that is pretested, integrated...
  11. J

    How to create a bootable OP25 (and more) USB drive

    Hi, I thought that I would post a brief summary of the process that I used to create a bootable USB drive to run OP25. Hopefully others may benefit. Assumptions: - You know how to boot from a USB drive - You have at least a cursory familiarity with Ubuntu, including how to setup networking...
Top