The present document applies to Earth Stations located on board Vessels (ESVs) which have the following
characteristics:
The ESV is comprised of all the equipment, electrical and mechanical, from the antenna itself to the interface
with other communications equipment on board (usually referred to as the terrestrial interface).
The ESV transmits in the frequency range from 14,00 GHz to 14,50 GHz allocated to the Fixed Satellite
Services (FSS) (earth-to-space).
The ESV receives in one or more frequencies within the range from 10,70 GHz to 12,75 GHz in the bands
allocated to the Fixed Satellite Services (FSS) (space-to-earth), depending on the ITU Region where the ESV
is located.
The ESV uses linear polarization.
The ESV operates through a geostationary satellite at least 2° to 3° away from any other geostationary satellite
operating in the same frequency band and covering the same area.
NOTE 1: The satellite spacing is mainly equal to 3° in ITU Regions 1 and 3 and 2° in ITU Region 2.
The ESV transmits at elevations greater or equal to the minimum elevation angle declared by the applicant.
The ESV antenna diameter is not smaller than 0,6 m.
NOTE 2: Operation within 125 km of non-CEPT countries with antenna diameter smaller than 1,2 m may be
subject to specific agreement with concerned administrations as stated in ITU-R Resolution 902
(WRC-03).
The ESV is designed for transmission and reception of radio-communications signals in accordance with any
of the frequency bands specified above.
The ESV is usually designed for unattended operation.
The ESV is operating as part of a satellite network (e.g. star, mesh or point-to-point) used for the distribution
and/or exchange of information between users.
The ESV is controlled and monitored by a Network Control Facility (NCF). The NCF is outside the scope of
the present document.