Satellite communications in the Royal Navy

Two types of satellite communication system, Skynet and SCOT, used by the Royal Navy are described. The 7/8 GHz frequency region was chosen in order to provide large operational bandwidths consistent with reliable propagation. An experimental ship terminal was designed and developed for the Skynet system. The requirements for a small lightweight system were met in the SCOT Naval Satellite Communication System, which has transportable terminals comprising a port and starboard antenna unit, an engineering cabin, and a control console which is fitted in the ship's main communication office. It is noted that a geostationary satellite system would be more stable in operation than the smaller less expensive and extendable earth-orbiting satellites.