The present document states the minimum requirements for radio transmitters and receivers, for use on ships, operating
in either the Medium Frequency (MF) only or in the Medium and High Frequency (MF/HF) bands allocated in the
International Telecommunications Union (ITU) Radio Regulations [1], to the Maritime Mobile Service (MMS).
The present document includes the International Maritime Organization (IMO) and ITU requirements included in the
relevant provisions of the Radio Regulations [1], the International Convention for the Safety Of Life At Sea
(SOLAS) [3], the IMO Resolutions A.694(17) [5] and A806 (19) [4] and is primarily intended to specify equipment
suitable for fitting to ships subject to the SOLAS convention and complying with the European Marine Equipment
Directive [20].
The present document refers to equipment for one or more of the following:
- Single SideBand (SSB) modulation for telephony transmission and reception (J3E);
- Frequency Shift Keying (FSK) or SSB modulation of a keyed sub-carrier to transmit and receive Digital
Selective Calling (DSC) signals in accordance with ITU-R Recommendation M.493-10 [6].
The present document also refers to radio equipment, which is not integrated with the DSC encoder or decoder, but
defines the interfaces with such equipment.
NOTE: The requirements for integrated equipment may be found in other relevant ETSs.
The tests in the present document are applicable to receivers for operating on all frequencies in the bands 1 605 kHz to
4 000 kHz or 1 605 kHz to 27,5 MHz as allocated in the Radio Regulations [1], to the MMS.
Other spot frequency receivers should meet all the requirements of the present document and other relevant standards as
applicable for the frequencies and modes provided.
If the equipment, or parts of it, are designed in such a manner that they can be used for other categories of maritime
radiocommunication (e.g. Morse telegraphy or (...abbreviated)