San Diego City and Poway Fire
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San Diego and Poway Fire Dispatch 7B Admin 7A
EMS Cmd 7E Tac 7F (EMS tac is not included in scan list)
Traffic Accident Cmd 7H Traffic Accident Tac 7I
South Main CMD 8A Tac 8B Tac 8C
South Secondary 8D Tac 8E Tac 8F
South Wildland 8G Tac 8H Tac 8I
Tertiary South Cmd 8J Tac 8K
North and Poway Cmd 9A Tac 9B Tac 9C
Secondary North and Poway Cmd 9D Tac 9E Tac 9F
North and Poway Wildland Cmd 9G Tac 9H Tac 9I Overflow
Tertiary North and Poway Cmd 9J Tac 9K
The set up being used is 2 SDR (software defined radio) usb dongles connected to a mini computer.
The software being used is Trunk Recorder operate the SDR's. Liquidsoap is used to upload the traffic to Broadcastify.
Trunk Recorder constantly monitors the control channel. When a selected talk group is detected on the control channel the computer tunes an SDR to the active channel. If more than one talk group becomes acitve on the system, the SDR's and program are able to record multiple converations at the same time. Once a transmission ends, a audio recording is made. Then it is set to be uploaded. If multiple files are recorded and need to be uploaded, they will uploaded in the order they are recorded.
This allows for the listener to hear every transmission.