ÖNORM EN 300338 V 1.2.1

The present document states the minimum requirements for equipment to be used for generation, transmission and reception of Digital Selective Calling (DSC) for use on board ships. DSC may be used in the Medium Frequency (MF), High Frequency (HF) and Very High Frequency (VHF) Maritime Mobile Service (MMS), both in connection with distress and safety communication and in connection with public correspondence. The present document covers the requirements to be fulfilled by: - DSC equipment integrated with a transmitter and/or a receiver; - DSC equipment not integrated with a transmitter and/or a receiver. These requirements include the relevant provisions of the ITU Radio Regulations [5] and ITU-R Recommendations, the International Convention for the Safety Of Life At Sea (SOLAS) [3], and the relevant resolutions of the International Maritime Organization (IMO). Equipment for generation, transmission and reception of DSC is recommended to be designed according to following equipment classes: - Class A - includes all the facilities defined in annex 1 of ITU-R Recommendation M.493-6 [6]; - Class B - provides minimum facilities for equipment on ships not required to use class A equipment and complies with the minimum IMO Global Maritime DistreSS (GMDSS) carriage requirements for MF and/or VHF installations. This equipment should provide for: - alerting, acknowledgement and relay facilities for distress purposes; - calling and acknowledgement for general communication purposes; and - calling in connection with semi-automatic/automatic services, as defined in ITU-R Recommendation M.493-6 [6], annex 2, subclause 3; - Class D - provides minimum facilities for VHF DSC distress, urgency and safety as well as routine calling and reception, not necessarily in full accordance with IMO GMDSS carriage requirements for VHF installations; - Class E - provides minimum facilities for MF and/or HF DSC distress, urge (...abbreviated)