PURPOSE: To reduce the return loss of the input terminal of a distributor even if the state of the load impedance of the output terminal of the distributor is changed, and to eliminate a bad influence upon a received picture.

CONSTITUTION: After a signal from a first intermediate frequency signal input terminal 1 is passed through a bypass filter 21, and only a BS band is passed, it is amplified by a high frequency amplification circuit 22, and is supplied to the distributor 23. Then, the reduction of the return loss, the compensation of distribution loss, and the prevention of interference can be realized by this constitution.