About Nantucket County Police Frequencies
We don't have any verified police frequencies for Nantucket County yet, but we're working on adding some.
If you know of any, or spot something wrong on a nearby page, please send it to contact@police-frequencies.com and we'll check it against the official records.
Radio system sites in Nantucket County
Program the control channel first; your scanner finds the voice channels from it.
Nantucket Simulcast · Nantucket
RFSS 1 · Site 1 (hex 1) · NAC 3A0
Control 854.2375, 854.4375, 855.9625, 857.7125
Voice 859.4875
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.