[op25-dev] Re: Christmas Announcements 2017

kb9mwr@yahoo.com [op25-dev] op25-dev at yahoogroups.com
Sun Jan 14 04:26:19 UTC 2018


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 at 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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