RADIO RELAY

1. The reception and retransmission by a radio station of signals that are received either from another radio station or from a wire, fiber optic, microwave , coaxial cable , or other link of an integrated land line and radio communications system component . 2. A terrestrial point-to-point communications system, such as a microwave- relay communications system or a satellite communications system. Note: The siting of radio-relay stations and the radio coverage diagrams of the antenna patterns are arranged for minimum interference with satellite Earth stations. The analog and digital baseband arrangements are similar to satellite systems. Radio-relay links may form part of the connection between an Earth station and a switching center . [ From Weik '89 ]