| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital TV broadcast system that automatically adjusts a relative delay from a studio (recital hall) to each transmission station go as to provide excellent stability. SOLUTION: A delay time measurement device 3 of the studio measures a delay time of a signal returned from each transmission station, a time matching signal generator 4 generates a time matching signal to decide a delay in each transmission station on the basis of the measurement result, delay equivalent devices 14, 24, 34 in each transmission station delay a relay IF signal having each delay on the basis of the received time matching signal and broadcast transmitters 13, 23, 33 of each transmission station transmits a broadcast radio wave in the same timing in the digital TV broadcast system. |
