Installation | RS20S User Guide
Where a VHF is required on the inland waterways of the signatory
countries, this must be capable of ATIS transmissions, and have the
feature activated. An ATIS number is required which is issued by
Ofcom when you add one or more pieces of ATIS equipment to
your Ship Radio Licence.
If you don’t have a user MMSI or ATIS ID, contact the appropriate
licensing authority in your country. I