HF marine
From HFUnderground
HF-SSB marine bands - these are standardized maritime mobile MF and HF communications bands - note that many maritime mobile users operate outside of these bands and there are dozens of country- or region-specific additional bands/frequencies.
Fisheries, fishing boats, and other commercial marine users will often use frequencies in the fixed/mobile bands, clear frequencies in the shortwave broadcast bands or even amateur frequencies for "out of band" communications to reduce the chance of radio interception by their competition.
MF SSB and HF SSB marine bands
Band | Frequency Range |
---|---|
405-525 kHz | MF band, used in some areas for NAVTEX on 490 kHz and/or 518 kHz. 500 kHz was the original CW Morse code calling frequency |
1600-1800 kHz | MF band, used in Europe and elsewhere (also used heavily for fishnet beacons) |
2000-2300 kHz | MF 2 MHz marine band - USB voice calling 2182 kHz, DSC calling 2187.5 kHz |
2450-2850 kHz | MF 2 MHz marine band |
4000-4063 kHz | 4 MHz fixed/mobile band, shared with marine for simplex purposes |
4063-4438 kHz | HF 4 MHz marine band - USB voice calling 4125 kHz, DSC calling 4207.5 kHz |
6200-6525 kHz | HF 6 MHz marine band - USB voice calling 6215 kHz, DSC calling 6312 kHz |
8000-8195 kHz | 8 MHz fixed/mobile band, shared with marine for simplex purposes |
8195-8815 kHz | HF 8 MHz marine band - USB voice calling 8291 kHz, DSC calling 8414.5 kHz |
12330-13200 kHz | HF 12 MHz marine band - USB voice calling 12290 kHz, DSC calling 12577 kHz |
16460-17360 kHz | HF 16 MHz/17 MHz marine band - USB voice calling 16420 kHz, DSC calling 16804.5 kHz |
22000-22855 kHz | HF 22 MHz marine band |
25070-25121 kHz | HF 25 MHz marine band |
26145-26175 kHz | HF 26 MHz marine band |
26175-28000 kHz | Various CB-like marine allocations found in this region |
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