Covering Dispatch & Tac. Aurora Fire Rescue is a ISO Class 2 and Accredited agency covering 160 square miles of the City of Aurora, the 2nd largest city by area and 3rd largest by population in Colorado.
Feed Device: Raspberry Pi 3 Model B+
Receiver: RTL-SDR Blog v3
Software: OP25 (boatbod), Liquidsoap
Radio System: Aurora
This feed uses a priority interrupt system. Talkgroups with higher priority will interrupt talkgroups with a lower priority.
|39102||Tac 2||3||Routine Calls|
|39104||Tac 4||1||Incident Response|
|39105||Tac 5||1||Incident Response|
|39106||Tac 6||1||Incident Response|
Curious about how Aurora's map grids work? Check out this fire station map: link. Each map grid is 1/2 mile by 1/2 mile. The first number represents the north to south grid, the letter indicates the east to west grid, and the end number represents one of the four 1/4 mile by 1/4 mile subgrids within a primary grid.
This is a demonstration feed testing the features and cost effectiveness of a Pi + SDR + OP25 combination over a regular scanner. The full cost of this setup is less than $80, a small fraction of the cost of a full feature top of the line scanner needed to reliably monitor these types of system
Aurora's radio system is a P25 Phase 2 four site simulcast radio system. These systems are notorious for being difficult to monitor on most traditional scanners without some type of special directional antenna setup. Reception is not always guarenteed even with such a setup and sometimes requires luck. This feed is located approximately 15 miles from the nearest site and uses the stock RTL-SDR Blog v3 dipole antenna kit to achieve its current performance.