Newport News Police and Fire |
| Listen | Feed | Genre | Listeners | Player Selection | Links | Status |
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 Newport News Police and FireNewport News VA, Police and Fire dispatch, from their Project 25 Phase II radio system. Running on a Pi-3B with a RTL-SDR, running OP25 and Liquidsoap. |
Public Safety
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Feed Notes
Newport News Police and Fire
P25 control frequencies: 856.5875, 857.2625, 858.2625, 859.2625
Talk Groups: 101, 102, 103, 201
- 101 NNPD South Dispatch
- 102 NNPD Central Dispatch
- 103 NNPD North Dispatch
- 201 NNFD Dispatch
Equipment/Software:
- Raspberry Pi 3B
- RTL-SDR
- Raspberry Pi OS 11 (Bullseye) 64-bit Lite
- OP25 and Liquidsoap 2.0.4
My testing shows about 1 to 2 minutes delay from real time capture, until it is played back from Broadcastify.
2020-07-02 Increased volume by 50%. Applied an audio gain of 1.5 in OP25.
2021-05-10 Added Alpha Tags in OP25 meta.json file. They seem to be delayed about 1 to 4 seconds from the audio. It appears that very short transmissions (less than 2 seconds) may not display the Alpha Tag. EDIT: Interesting, after my setup with Alpha Tags enabled ran for a couple of days, the Alpha Tags are now showing up on the client right at the same time as the audio, no more than a half second delayed now.
2021-09-30 Added a monthly reboot of the Raspberry Pi at 4am on the 1st of each month.
2022-03-14 Major update. My rig is now running Raspberry Pi OS 11 (Bullseye) 64-bit Lite, OP25 (boatbod) from github, and Liquidsoap. I completely rebuilt everything on another Pi 3B I had, then moved the mSD card into the main Pi running I have running OP25. I'm hoping this configuration is more stable than using the audio aloop with darkice. Time will tell. So far it's working and sounds good.
2022-04-25 Updated to Liquidsoap 2.0.4 for better memory management.