SSH EN 301 403 V1.1.1:2003

Electromagnetic compatibility and Radio spectrum Matters (ERM); Maritime Mobile Earth Stations (MMES) operating in the 1,5 GHz and 1,6 GHz bands providing voice and direct printing for the Global Maritime Distress and Safety System (GMDSS); Technical characteristics and methods of measurement

Scope

The present document provides specifications for the standardization of transmit/receive Maritime Mobile Earth
Stations (MMES) operating in the 1,5 GHz and 1,6 GHz bands under the Global Maritime Distress and Safety Systems
(GMDSS) in order to ensure general safety and limit interference to radio communication systems.
NOTE: The present document is for MMES equipment that meets the requirements of IMO A.808(19) [6] based
systems only.
The present document applies to MMES radio equipment, which have the following characteristics:
- the MMES is ship mounted;
- these MMES are controlled and monitored by a Network Control Facility (NCF). The NCF is outside the
scope of the present document;
- the MMES operates through geostationary satellites as part of a network providing voice, direct printing and
data communications;
- the MMES is capable of operating within the frequency ranges given in table 1.
Table 1: Mobile Satellite Service (MSS) frequency bands
Direction of Transmission MSS frequency bands
Transmit (earth to space) 1 626,5 MHz to 1 660,5 MHz
Receive (space to earth) 1 525,0 MHz to 1 559,0 MHz