Trunk Recorder Configuration File

[waterbwuk]

Hi Everyone,

I am currently streaming my counties system (Asheville P25) to "regular" broadcastify and the calls API using SDRTrunk with two NooElec Smart v4's. I have been trying to get trunk recorder set up (haven't gotten into setting up the config part for streaming yet, just testing the software) and it is somewhat working (as in I know it's picking up the CC and decoding the P25-1), but the audio can be choppy at times and completely unusable to stream. I've tried looking online for some example configuration files and haven't had much luck with what I have found. I was wondering if someone would be willing to share their config file that currently has a working setup similar to what I have?

Thanks!

 

[waterbwuk]

Cancel that, I got it working. Apparently my gain setting was off. Here is my config file now:

{
    "sources": [{
        "center": 857625000,
        "rate": 2400000,
        "gain": 327,
        "ppm": 0,
        "lnaGain": 222,
        "digitalRecorders": 3,
        "modulation": "qpsk",
        "driver": "osmosdr",
        "device": "rtl=00000001"
    },{
        "center": 860375000,
        "rate": 2400000,
        "gain": 327,
        "ppm": 0,
        "lnaGain": 222,
        "digitalRecorders": 2,
        "modulation": "qpsk",
        "driver": "osmosdr",
        "device": "rtl=00000002"
    }],
    "systems": [{
        "control_channels": [857987500],
        "type": "p25",
        "shortName": "Asheville",
        "recordUnknown": "true",
        "talkgroupsFile": "/opt/recorder/ashevillep25.csv",
        "callLog": "true",
        "audioArchive": false,
        "uploadScript": "encode_upload.sh"
    }],
    "controlWarnRate": 5,
    "callTimeout": 1,
    "captureDir": "/tmp/capture",
    "frequencyFormat": "mhz",
    "defaultMode": "digital"
}

 

[jasonk]

It looks like you need 3 dongles to properly cover that system. While you can technically fit all of the frequencies into your current setup - you end up with problems on the edge of the range. Just a note from my experiences.