CRSs (Coast Radio Stations) are maritime radio stations situated on shore which monitor radio distress frequencies, coordinate the radio traffic, and relay shore-to-ship and ship-to-shore communications. Most of them also have remotely controlled stations (which are just transmitters/receivers) that enable them to increase coastal water areas within continuous VHF DSC coverage (GMDSS Sea Area A1) as well as MF DSC coverage ( GMDSS Sea Area A2) or HF DSC coverage (GMDSS Sea Areas A3 and A4).

CRSs may have the direction finding equipment to locate a ship or give her information about her actual position based on VHF radio signal.

Some of CRSs are categorised as MRCCs (Maritime Rescue and Coordination Centres) or MRSCs (Maritime Rescue Sub Centres) and these also organize all SAR (Search And Rescue) activities.

Some CRSs are also categorised as NAVTEX CRSs as they also transmit MSI (Maritime Safety Information such as navigational warnings, meteorological warnings and forecasts, urgent and distress priority messages) within the NAVTEX information system.

The following map includes all CRSs of the British Isles and north-western Europe. Each CRS is represented by a black dot together with its MMSI number. Black lines represent links to remotely-controlled CRSs. Coastal areas within continuous VHF DSC coverage from a CRS are red (GMDSS Sea Area A1), while sea areas within continuous MF DSC coverage from a CRSs are green (GMDSS Sea Area A2). The HF DSC coverage covers area A3 (blue).

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All CRSs maps are available in the appendix.

Details of all CRSs may be found in ALRS Volume 5.
Last modified: Saturday, 25 April 2020, 7:50 PM