Yeah sorry about that.  Lots of dumb little things on my part.  I have it working now.

I just heard DMR audio. On a Pi3.. And it sounded good!

Linux op25 4.9.28-v7+ #998 SMP Mon May 15 16:55:39 BST 2017 arm71 GNU/Linux

ppm set to 2 for me (see json file below)

Code:

pi@op25:~/op25/op25/gr-op25_repeater/apps $ python multi_rx.py -c cfg.json -v 9

Audio:

Code:

nc -kluvw 1 127.0.0.1 1 56122 | aplay -c1 -f S16_LE -r 8000

Code: {
    "channels": [
        {
            "demod_type": "fsk4",
            "destination": "udp://127.0.0.1:56122",
            "excess_bw": 0.2,
            "filter_type": "rrc",
            "frequency": 442831250,
            "if_rate": 24000,
            "name": "dmr",
            "plot": "symbol",
            "symbol_rate": 4800
        }
    ],
    "devices": [
        {
            "args": "rtl:0",
            "frequency": 442831250,
            "gains": "lna:49",
            "name": "rtl0",
            "offset": 0,
            "ppm": 2,
            "rate": 1000000,
            "tunable": false
        }
    ]
}

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Posted by: kb9mwr@yahoo.com

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