RETRANSMISSION SYSTEM, RECEPTION CONVERTING DEVICE FOR RETRANSMISSION SYSTEM AND CONVERSION TRANSMITTING DEVICE FOR RETRANSMISSION SYSTEM

摘要

PROBLEM TO BE SOLVED: To prevent a frequency deviation from occurring between an original terrestrial digital television signal and a terrestrial digital television signal to be retransmitted.

SOLUTION: A conversion television signal, which is obtained by frequency-converting a supplied terrestrial digital television signal by means of a UHF-MID down converter 8, is supplied to a joint reception system 4. The transmitted converted television signal is frequency-converted into the original terrestrial digital television signal by an MID-UHF up converter 16 and supplied to a retransmission antenna. A reference signal generator 22 is provided so as to supply a common reference signal for generating a local oscillation signal to be used in frequency conversion by the down and up converters 8 and 16 from an output side of the down converter 8 and from an input side of the up converter 16.

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