What are Marine Channels M, M1 & M2?

Channel M1 (37A) and M2 (P4) are the designated club and marina use channels for leisure users. M (80) is also recognised as a Marina Channel, but unlike its counterparts, it is not a masked or private channel.

UK Marina Channels and their Frequencies are : M1=37A (157.850 MHz), M2=P4 (161.425 MHz), M=80 (TX 157.025 MHz, RX 161.625 MHz.)

Clubs, ports and marinas using CH80 will have a reversed duplex radio which will use TX 161.625 MHz, RX 157.025 MHz, so communication with you is possible.

On our more recent radios, channel 37a will display as channel 1037. This is due to the reallocation and expansion of some VHF simplex channels, don't worry it works in exactly the same way as before.

All Icom marine VHF radios purchased from authorised Icom UK dealers within the UK and Southern Ireland have these channels as standard. Be aware that products sourced from overseas markets including other parts of Europe are unlikely to have these channels enabled.

17/06/2020