SSH EN 301 925 V1.2.1:2006

Electromagnetic compatibility and Radio spectrum Matters (ERM); Radiotelephone transmitters and receivers for the maritime mobile service operating in VHF bands; Technical characteristics and methods of measurement

Scope

The present document specifies the minimum requirements for shipborne radio transmitters and receivers for fixed
installations operating in the VHF frequency bands between 156 MHz and 174 MHz allocated to the maritime mobile
service, using both 25 kHz and 12,5 kHz channels and capable of Radiotelephony and Digital Selective Calling
communications within the Global Maritime Distress and Safety System. The present document incorporates the
requirements of the relevant resolutions of the International Maritime Organization (IMO) and is primarily intended to
specify equipment suitable for fitting to ships subject to the SOLAS Convention [1] and complying with the European
Marine Equipment Directive [2].
The EMC parameters defined in the clauses of the present document covering emission tests and immunity tests
(see clauses 10 and 11) have been selected to ensure an adequate level of compatibility for apparatus in marine
environments. Should the EMC requirements in the present document conflict with those of EN 60945 [17], then the
requirements of the present document shall take precedence.
Compliance to the EMC requirements of the present document does not signify compliance to any safety requirements.
However, it is the responsibility of the assessor of the equipment to record in their test report any observations
regarding the test sample becoming dangerous or unsafe as a result of the application of the tests called for herein.
The present document does not address the testing of ancillary equipment on a stand-alone basis, i.e. separately from the
radio equipment with which it is to be used.