WXM77: NOAA Weather Radio, Caribou

162.525 MHz · 100 W · On the air

WXM77 broadcasts NOAA Weather Radio on 162.525 MHz (WX7 on most receivers) from Caribou, with the transmitter at Mars Hill, Maine, at 100 W. The National Weather Service office in Caribou, ME programs it. It covers 2 counties.

The transmitter and its neighbors

WXM77 (the largest dot) and the transmitters within 100 miles, colored by their status now.

On the air
Degraded
Off the air

The transmitter

Call sign: WXM77
Frequency: 162.525 MHz (WX7)
Power: 100 W
Status: On the air
Station: Caribou
Transmitter site: Mars Hill
State: Maine
NWS office: Caribou, ME
Location: 46.5513, -67.8092

Counties covered

Program a SAME receiver with the code of your county. Coverage is NWS’s note of the part of a county the signal reaches.

County	State	SAME code	Coverage
Aroostook	Maine	023003	Whole county
Penobscot	Maine	023019	N

Nearby transmitters

Weather radio in Maine Every transmitter The forecast here Alerts in force in Maine

Sources

Transmitters, status and county coverage from the National Weather Service’s NOAA Weather Radio county coverage listing (data). Public domain. Read September 28, 2026 at 4:56 AM UTC; held for an hour. Original at weather.gov. Report an outage to NWS at weather.gov/nwr.