KZZ40: NOAA Weather Radio for Deerfield, New Hampshire
KZZ40 is the NOAA Weather Radio transmitter at Deerfield, broadcasting on 162.450 MHz at 300 watts. It carries the National Weather Service Gray/Portland office's broadcast and covers 11 counties, each listed below with the SAME code an alert radio needs to wake for that county and stay quiet for the rest.
| Callsign | KZZ40 |
|---|---|
| Frequency | 162.450 MHz |
| Transmitter | Deerfield, New Hampshire |
| Power | 300 watts |
| Forecast office | NWS Gray/Portland |
| Status | Normal (NWS data, July 2026) |
Marine radios often label 162.450 MHz as WX5, but WX channel numbers vary by brand - go by the frequency.
Counties KZZ40 covers
| County | State | SAME code | Note |
|---|---|---|---|
| York | Maine | 023031 | SOUTHERN 1/2 |
| Essex | Massachusetts | 025009 | |
| Middlesex | Massachusetts | 025017 | N 1/2 |
| Worcester | Massachusetts | 025027 | NORTHEAST |
| Belknap | New Hampshire | 033001 | EXCEPT NW |
| Carroll | New Hampshire | 033003 | EXTREME S |
| Cheshire | New Hampshire | 033005 | |
| Hillsborough | New Hampshire | 033011 | EXCEPT SW |
| Merrimack | New Hampshire | 033013 | EXCEPT W |
| Rockingham | New Hampshire | 033015 | |
| Strafford | New Hampshire | 033017 |
A county marked with a note (for example partial coverage) is served for that portion only. Program the six-digit code into your radio's SAME location list - the SAME code guide walks through it, and how alert radios work explains what the radio does with it.
Hearing KZZ40
Any receiver that tunes 162.450 MHz FM can listen: scanners, VHF ham radios, marine sets, or a software-defined receiver. What those do not do is wake you at 3 a.m. - for that you want a dedicated radio with SAME alerting, covered in the buyer's guide.
Every New Hampshire transmitter, county and SAME code: NOAA Weather Radio in New Hampshire. Or look any county up with the finder.
Sources:
- “NWR County Coverage Listings”. weather.gov. Archived from the original on 2026-07-19. Retrieved 2026-07-16. Every figure on this page - frequency, transmitter site, power, operational status, and county SAME codes - is from this dataset. Transmitters move, change power, and go down for maintenance; verify locally before you rely on it.