The VHF channels HM Coastguard uses to broadcast Maritime Safety Information (MSI) and conduct radio medical advice are changing.

From mid-morning on Wednesday 6 September 2017 the Coastguard will no longer broadcast on VHF 23, 84 and 86. It will instead use VHF 62, 63 and 64. The use of VHF Channel 10 for MSI and pollution control (back up) is unchanged.

It will also be possible to consult information in advance on which aerial will broadcast on which channel. Final testing of the new regime is currently being completed, but the information detailing which aerial will broadcast on which channel will be published at as soon as it is released by the Maritime and Coastguard Agency which is expected to be early/mid- August.

If you're out on the water and don't know which channel to listen to, MSI broadcasts will continue to be announced by the Coastguard on Channel 16. This announcement enables the mariner to establish which channel to monitor to receive the broadcast.

Following feedback from members that they have had problems receiving the Coastguard's MSI transmissions, the RYA met with the Coastguard to discuss the issues. As a result of that meeting, the RYA will be gathering data on issues with MSI broadcasts and an online reporting form has been developed.

By collecting the information through this form we can ensure that reports include all the information the Coastguard needs to look into future issues.

MSI VHF Feedback Form

If you have experienced problems receiving the UK Coastguard MSI VHF weather broadcast, please use this new online form to report your experiences to the RYA. The form is available on the RYA website at