DIGITAL TV BROADCAST SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a digital TV broadcast system that can configure frequency diversity with one frequency for linking so as not to stop relay transmission due to a crosstalk 1 disturbance wave. SOLUTION: A signal is transmitted from an active TTL transmitter 3 of a relay broadcast station 1 through an SFH link, the signal is transmitted by a UHF broadcast wave from a broadcast unit 5', an active TTL receiver 7 of a broadcast station 6 receives a signal from the SHF link and also a standby TTL receiver 8' receives a UHF broadcast wave, a crosstalk 1 disturbance wave detection circuit 19 detects a crosstalk 1 disturbance wave, and a signal from the standby TTL receiver 8' is selected by an active/standby changeover device 9' in the digital TV broadcast system.