SSH EN 301 688 V1.1.1:2000

ElectroMagnetic Compatibility and Radio Spectrum Matters (ERM); Technical characteristics and methods of measurement for fixed and portable VHF equipment operating on 121,5 MHz and 123,1 MHz

Scope

The present document specifies the minimum technical requirements for maritime two-way AM VHF radiotelephone
apparatus for communications between ships in distress and rescuing aircraft. The standard incorporates relevant
provisions of the ITU Radio Regulations [1], of IMO Assembly Resolutions [2] and of Annex 10 to the ICAO
Convention [3].
The maritime VHF equipment described in the present document is intended for communications on the aeronautical
emergency frequencies 121,5 MHz and 123,1 MHz only.
The present document is applicable to portable and fixed installed equipment.
The intention of the present document is to define equipment that in all respects have mechanical and electrical design,
construction and finish in conformance with good engineering practice and that is suitable for use on board ships at sea
in distress situations.