scope:

The present document applies to the following radio equipment: Transmitters, receivers and transceivers fitted with external antenna connectors, used as coast stations, operating in the VHF band of the maritime mobile service as defined in the Radio Regulations, Appendix S18 [5] and utilizing class of emission G3E, and where relevant G2B for DSC signalling. This includes: - equipment operating under local or remote control; - equipment operating on 25 kHz channel spacing; - equipment capable of analogue speech, Digital Selective Calling (DSC), or both; - equipment operating in Simplex, Semi-Duplex (Half Duplex) and Duplex modes; - equipment which may consist of more than one unit; - equipment which may be single-channel or multi-channel; - equipment operating on shared radio sites; - equipment operating in isolation from other radio equipment.