About Washburn Police Frequencies
- Trunked radio systems that carry law-enforcement traffic here: Iowa Statewide Interoperable Communications System (ISICS): 2 talkgroups. A trunking scanner is required, and it must support the system type shown.
- To follow a trunked system, program a control channel first. For Washburn, start with the BlackHawk/Bremer Co Simulcast site of Iowa Statewide Interoperable Communications System (ISICS), about 17 miles away. Its control channels: 773.80625, 774.05625, 774.30625 MHz.
- 2 listed entries are marked encrypted. No scanner can decode encrypted audio.
Black Hawk County channels that also cover Washburn
Iowa Statewide Interoperable Communications System (ISICS)
2 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Black Hawk County Sheriff | Law Operations | 16970 | 424a | T Encrypted |
| Black Hawk County Sheriff | Law Operations | 16971 | 424b | T Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Washburn.
BlackHawk/Bremer Co Simulcast · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 12 (hex C) · NAC 4C0 · about 17 mi away
Control 773.80625, 774.05625, 774.30625
Voice 773.55625
Independence · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 16 (hex 10) · NAC 4C5 · about 20 mi away
Control 773.78125, 774.03125, 774.28125
Voice 773.53125
Sumner · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 2 · Site 9 (hex 9) · NAC 4C0 · about 31 mi away
Control 773.44375, 773.73125, 774.74375
Voice 772.76875
What do these numbers mean?
- Control channel
- The frequency your scanner listens to first. It tells the scanner where each voice call is happening, so program it before anything else.
- Voice
- The other frequencies the site uses for calls. A trunking scanner follows them automatically once it has the control channel.
- Site
- One tower location of the system. Scanners show the number in decimal or hex, so both are listed.
- RFSS (Radio Frequency Sub-System)
- A group of sites run by the same controller. Large Project 25 systems can have several.
- NAC (Network Access Code)
- A hex code the site transmits. Your scanner can use it to ignore other systems on the same frequency.
- Talkgroup
- A virtual channel on a trunked system, such as one agency’s dispatch. Programming uses the decimal or hex number, depending on your scanner.