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Marine Radiofacsimile

Marine Radiofacsimile, often referred to as "WEFAX," is a specialized broadcast service used by ships and maritime operations to receive graphical weather charts and other vital information directly over radio waves. Transmitted primarily on High Frequency (HF) bands, these signals are decoded by a dedicated receiver (or a computer with appropriate software) to render images of surface analysis charts, wind and wave forecasts, sea ice conditions, and even satellite imagery. This invaluable service provides mariners with up-to-date, visual meteorological data essential for safe navigation and voyage planning, especially when outside the range of internet or satellite communication.

Channels
NOJ (Kodiak, AK, US)
2.054 MHz
NMF (Boston, MA, US)
Limited broadcast
4.235 MHz
NOJ (Kodiak, AK, US)
4.298 MHz
NMG (New Orleans, LA, US)
4.318 MHz
NMC (Pt. Reyes, CA, US)
Limited broadcast
4.346 MHz
NMF (Boston, MA, US)
6.34 MHz
NOJ (Kodiak, AK, US)
8.459 MHz
NMG (New Orleans, LA, US)
8.504 MHz
NMC (Pt. Reyes, CA, US)
8.682 MHz
NMF (Boston, MA, US)
9.11 MHz
KVM70 (Honolulu, HI, US)
Limited broadcast
9.982 MHz
KVM70 (Honolulu, HI, US)
11.09 MHz
NOJ (Kodiak, AK, US)
12.411 MHz
NMF (Boston, MA, US)
Limited broadcast
12.75 MHz
NMC (Pt. Reyes, CA, US)
12.786 MHz
NMG (New Orleans, LA, US)
12.79 MHz
KVM70 (Honolulu, HI, US)
16.135 MHz
NMG (New Orleans, LA, US)
Limited broadcast
17.146 MHz
NMC (Pt. Reyes, CA, US)
17.151 MHz
NMC (Pt. Reyes, CA, US)
Limited broadcast
22.527 MHz