| 摘要 |
PROBLEM TO BE SOLVED: To transmit a plurality of control signals from a receiver body to an antenna amplifier. SOLUTION: An antenna amplifier 1 is provided with an FM main amplifier unit 4A and an FM sub-amplifier unit 4B, and a receiver body 110 is provided with a main tuner circuit 2A and a sub-tuner circuit 2B. The amplifier units 4A, 4B and the tuner circuits 2A, 2B are connected by two antenna cables 6A, 6B so that two broadcasting channels can be received. An AGC control signal Vfa for the FM main amplifier unit 4A and an AGC control signal Vfb for the FM sub-amplifier unit 4B are synthesized and superposed on one of antenna cables 6A and transmitted to the antenna amplifier 1. COPYRIGHT: (C)2007,JPO&INPIT
|
