Hi,
This is my first post in this forum, and I am going to talk you about the UHF frequencies authorised for Maritime on-board Communications.
They are regulated by the ITU (ITU-R M.1174-4) and the ETSI (ETSI EN 300 720 V2.1.1) and they are used worldwide in big merchant and cruise vessels.
The spacements, frequencies and channels are the followings:
ANALOG MODE ONLY (25 KHz spacing):
Channel 1: 457,525 MHz
Channel 2: 457,550 MHz
Channel 3: 457,575 MHz
Channel 4: 467,525 MHz
Channel 5: 467,550 MHz
Channel 6: 467,575 MHz
ANALOG AND DIGITAL MODE (12,5 KHz spacing systems like DMR):
Channel 11: 457,525 MHz
Channel 12: 457,5375 MHz
Channel 13: 457,550 MHz
Channel 14: 457,5625 MHz
Channel 15: 457,575 MHz
Channel 21: 467,525 MHz
Channel 22: 467,5375 MHz
Channel 23: 467,550 MHz
Channel 24: 467,5625 MHz
Channel 25: 467,575 MHz
DIGITAL MODE ONLY (6,25 KHz spacing systems like dPMR):
Channel 102: 457,515625 MHz
Channel 111: 457,521875 MHz
Channel 112: 457,528125 MHz
Channel 121: 457,534375 MHz
Channel 122: 457,540625 MHz
Channel 131: 457,546875 MHz
Channel 132: 457,553125 MHz
Channel 141: 457,559375 MHz
Channel 142: 457,565625 MHz
Channel 151: 457,571875 MHz
Channel 152: 457,578125 MHz
Channel 161: 457,584375 MHz
Channel 202: 467,515625 MHz
Channel 211: 467,521875 MHz
Channel 212: 467,528125 MHz
Channel 221: 467,534375 MHz
Channel 222: 467,540625 MHz
Channel 231: 467,546875 MHz
Channel 232: 467,553125 MHz
Channel 241: 467,559375 MHz
Channel 242: 467,565625 MHz
Channel 251: 467,571875 MHz
Channel 252: 467,578125 MHz
Channel 261: 467,584375 MHz
For operation with repeaters, the offset is +- 10 MHz.
This is my first post in this forum, and I am going to talk you about the UHF frequencies authorised for Maritime on-board Communications.
They are regulated by the ITU (ITU-R M.1174-4) and the ETSI (ETSI EN 300 720 V2.1.1) and they are used worldwide in big merchant and cruise vessels.
The spacements, frequencies and channels are the followings:
ANALOG MODE ONLY (25 KHz spacing):
Channel 1: 457,525 MHz
Channel 2: 457,550 MHz
Channel 3: 457,575 MHz
Channel 4: 467,525 MHz
Channel 5: 467,550 MHz
Channel 6: 467,575 MHz
ANALOG AND DIGITAL MODE (12,5 KHz spacing systems like DMR):
Channel 11: 457,525 MHz
Channel 12: 457,5375 MHz
Channel 13: 457,550 MHz
Channel 14: 457,5625 MHz
Channel 15: 457,575 MHz
Channel 21: 467,525 MHz
Channel 22: 467,5375 MHz
Channel 23: 467,550 MHz
Channel 24: 467,5625 MHz
Channel 25: 467,575 MHz
DIGITAL MODE ONLY (6,25 KHz spacing systems like dPMR):
Channel 102: 457,515625 MHz
Channel 111: 457,521875 MHz
Channel 112: 457,528125 MHz
Channel 121: 457,534375 MHz
Channel 122: 457,540625 MHz
Channel 131: 457,546875 MHz
Channel 132: 457,553125 MHz
Channel 141: 457,559375 MHz
Channel 142: 457,565625 MHz
Channel 151: 457,571875 MHz
Channel 152: 457,578125 MHz
Channel 161: 457,584375 MHz
Channel 202: 467,515625 MHz
Channel 211: 467,521875 MHz
Channel 212: 467,528125 MHz
Channel 221: 467,534375 MHz
Channel 222: 467,540625 MHz
Channel 231: 467,546875 MHz
Channel 232: 467,553125 MHz
Channel 241: 467,559375 MHz
Channel 242: 467,565625 MHz
Channel 251: 467,571875 MHz
Channel 252: 467,578125 MHz
Channel 261: 467,584375 MHz
For operation with repeaters, the offset is +- 10 MHz.
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