RELAY GAIN CONTROLLER FOR COMMUNICATION SYSTEM

PROBLEM TO BE SOLVED: To provide a relay gain controller for communication system that can maintain a proper gain without re-setting by an input terminal even when a gain stored in a RAM or the like in a slave station is lost. SOLUTION: A command gain set to an input terminal 10 is stored in an EEPROM 25 of a master station 20. The command gain stored in the EEPROM 25 is read and included in a state monitor signal that is periodically transmitted from the master station 20 to a slave station 30. The slave station 30 receiving the state monitor signal compares a gain stored in a RAM 35 with the gain included in the state monitor signal and rewrites the gain in the RAM 35 into the gain included in the state monitor signal when the gains differ, the gain stored in the RAM 35 is outputted to a radio section 33 to maintain the amplification gain of the radio section 33 properly.