New to the group, I'm running OP25 headless on a raspberry pi with 2 dongles. I've managed to get multi_rx working for other simple channels, i.e. nbfm NOAA, but had a helluva time setting up my lame smartnet setup. It's a analog system, I can hear the analog voice channels in SDR#, and have found a strong digital control channel. I'm sure this is a simple error, but I'm having a helluva time figuring it out myself. I understand this is probably the not the most interesting channel to listen to but I appreciate the support and patience to help troubleshoot.
Southeastern Pennsylvania Transportation Authority (SEPTA) Trunking System, Various, Pennsylvania - Scanner Frequencies
My JSON config file is
Southeastern Pennsylvania Transportation Authority (SEPTA) Trunking System, Various, Pennsylvania - Scanner Frequencies
My JSON config file is
Code:
{
"channels": [
{
"name": "control channel",
"trunking_sysname": "Example",
"device": "rtl0",
"raw_output": "",
"demod_type": "fsk4",
"destination": "smartnet",
"excess_bw": 0.35,
"filter_type": "fsk",
"if_rate": 18000,
"plot": "",
"enable_analog": "off",
"symbol_rate": 3600
},
{
"name": "voice channel",
"trunking_sysname": "Example",
"meta_stream_name": "stream_0",
"device": "rtl1",
"blacklist": "",
"whitelist": "",
"raw_output": "",
"demod_type": "fsk",
"destination": "udp://127.0.0.1:23456",
"enable_analog": "on",
"nbfm_deviation": 4000,
"nbfm_squelch_threshold": -80,
"nbfm_squelch_gain": 0.0050,
"nbfm_raw_output": "",
"nbfm_enable_subchannel": false,
"excess_bw": 0.2,
"filter_type": "widepulse",
"if_rate": 24000,
"plot": "",
"symbol_rate": 4800
}
],
"devices": [
{
"args": "rtl=0",
"frequency": 502537500,
"gains": "LNA:47",
"name": "rtl0",
"offset": 0,
"ppm": 0.0,
"rate": 100000,
"tunable": true
},
{
"args": "rtl=1",
"frequency": 502537500,
"gains": "LNA:47",
"name": "rtl1",
"offset": 0,
"ppm": 0.0,
"rate": 100000,
"tunable": true
}
],
"trunking": {
"module": "tk_smartnet.py",
"chans": [
{
"sysname": "Example",
"control_channel_list": "502.5375",
"tgid_tags_file": "",
"tgid_hold_time": 2.0,
"blacklist": "",
"whitelist": "",
"bandplan_comment": "Set bandplan to one of '400' '800' '800_reband' '900'",
"bandplan": "400",
"bp_spacing": 0.0125,
"bp_base": 502.000,
"bp_base_offset": 380,
"bp_mid": 502.4875,
"bp_mid_offset": 579,
"bp_high": 502.7125,
"bp_high_offset": 632
}
]
},
"audio": {
"module": "sockaudio.py",
"instances": [
{
"instance_name": "audio0",
"device_name": "default",
"udp_port": 23456,
"audio_gain": 1.0,
"number_channels": 1
}
]
},
"terminal": {
"module": "terminal.py",
"terminal_type": "curses",
"#terminal_type": "http:0.0.0.0:8080",
"curses_plot_interval": 0.2,
"http_plot_interval": 1.0,
"http_plot_directory": "../www/images",
"tuning_step_large": 1200,
"tuning_step_small": 100
}
}