| Anotace |
ČSN ETSI EN 301 025 V2.1.1 The present document covers the minimum requirements for general communication for shipborne fixed installations using a VHF radiotelephone operating in certain frequency bands 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. These requirements include the relevant provisions of the ITU Radio Regulations, appendix 18 [1], Recommendations ITU R M.493 13 [3] (where class D is defined), M.825-3 [i.4] and incorporate the relevant guidelines of the IMO as detailed in IMO Circular MSC/Circ-803 [i.1]. The present document also specifies technical characteristics, methods of measurement and required test results. The present document contains requirements to demonstrate that "... Radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference" [i.3] and that "....radio equipment supports certain features ensuring access to emergency services" [i.3]. In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the Directive 2014/53/EU [i.3] may apply to equipment within the scope of the present document. |