CONTENTS

RECOMMENDATION  ITU-R  S.1587-2     1
Technical characteristics of earth stations on board vessels communicating with FSS satellites in the frequency bands 5 925-6 425 MHz and 14-14.5 GHz which are allocated to the fixed-satellite service     1
Annex 1  Technical characteristics of ESVs operating in the frequency  band 5 925-6 425 MHz which is allocated to the FSS     3
1 Introduction  3
2 Description of deployed ESV systems and their operations  3
        2.1 Description of ESV systems  3
        2.2 Antenna subsystem   3
        2.3 RF subsystem   4
        2.4 Digital/modem subsystem   4
        2.5 Terminating capability  4
        2.6 Description of ESV hub function  4
3 Operational characteristics of typical ESVs operating in the 5 925-6 425 MHz frequency band     4
        3.1 In general: three distinct operational phases  5
        3.2 ESV operations in open sea  5
        3.3 ESV operations in stationary mode  6
        3.4 ESV operations in motion  6
4 ESV technical characteristics  6
Annex 2  Technical characteristics of ESVs communicating with FSS satellites in the frequency band 14-14.5 GHz which is allocated to the FSS     9
1 Antenna subsystem   10
2 RF subsystem   10
3 Modem subsystem   10
4 ESV technical characteristics  10