Waltham Police & Fire
Waltham PD (Ch. 1) & Waltham FD (Ch. 1 and Ch. 2)
Live Audio
Feed Details
| Feed ID | 38531 |
| Genre | Public Safety |
| Status | Online (18d 2h) |
| Listeners | 13 |
Feed Archives
Archives Page| Start | End | Plays |
|---|---|---|
| Jul 21, 4:05 AM | 4:35 AM | 0 |
| Jul 21, 3:36 AM | 4:06 AM | 0 |
| Jul 21, 3:06 AM | 3:36 AM | 0 |
| Jul 21, 2:36 AM | 3:06 AM | 0 |
| Jul 21, 2:06 AM | 2:36 AM | 0 |
| Jul 21, 1:36 AM | 2:06 AM | 0 |
| Jul 21, 1:06 AM | 1:36 AM | 0 |
| Jul 21, 12:37 AM | 1:07 AM | 0 |
| Jul 21, 12:07 AM | 12:37 AM | 0 |
| Jul 20, 11:37 PM | 12:07 AM | 0 |
Feed Notes
FYI THE FEED DELAY IS ON THE ORDER OF ABOUT 2 MINUTES AND TIMING BETWEEN CALLS MAY NOT BE PRESERVED; HOWEVER, NOTHING WILL BE LOST IF, FOR EXAMPLE, BOTH THE PD AND FD ARE ACTIVE AT THE SAME TIME.
THREE Frequencies Monitored:
(1)
Location: Waltham, MA
Frequency/Modulation: 470.5125 MHz (Conventional P25 Phase 1)
Alpha Tag: "Waltham PD-1"
Description: "Police F1 Operations"
(2)
Location: Waltham, MA
Frequency/Modulation: 470.1125 MHz (Conventional NFM)
Alpha Tag: "Waltham FD1"
Description: "Fire Ch 1 Operations" (analog only)
(3)
Location: Waltham, MA
Frequency/Modulation: 472.225 MHz (Conventional NFM)
Alpha Tag: "Waltham FD2"
Description: "Fire Ch.2 Fireground"
12/20/25 - I have become concerned about AI-driven services scraping my audio and reporting things like simulated active-shooter training as actual mass-casualty events. Once, several years ago, I found myself "fooled" for more than a few minutes. For this reason, I may remove coverage of "Waltham FD2" in the future.
HARDWARE:
Raspberry Pi 4 with TWO "Nooelec NESDR SMArTee XTR SDR" connected to a Tram scanner antenna stuck to a grounded piece of sheet metal.
Yep.
SOFTWARE:
Largely followed this guide.
trunk-recorder recompiled to use the older p25 decoder