ÖVE/ÖNORM EN 301025 V2.3.1

The present document specifies technical characteristics and methods of measurements for VHF radiotelephone with the following characteristics: • operating in the channels and frequencies specified in the ITU Radio Regulations appendix 18 [1] as applicable, allocated to the maritime mobile service; • using either 25 kHz or 25 kHz and 12,5 kHz channels and associated equipment for DSC - class D; • capable of operating on single frequency and two-frequency channels with manual control (simplex); • supporting dual frequency simplex operation only; • using phase modulation, G3E (frequency modulation with pre-emphasis of 6 dB/octave) for speech, and G2B for DSC signalling. Full duplex operation is not supported. The present document does not provide technical requirements for conformance with the essential requirements of Directive 2014/53/EU [i.3] for any integrated GNSS receiver providing locating function.