| 摘要 |
PROBLEM TO BE SOLVED: To provide an STL(studio to transmitter link) device for a ground wave digital television, that is applied to a ground digital TV broadcast system with a very weak output and can avoid a sneak path problem among antennas at a small scale and a low cost. SOLUTION: In the STL device for ground wave digital television that is operated with a very weak output, a broadcast wave of a high frequency signal is received by a reception input antenna 1, frequency-converted into a frequency of a high frequency signal different from that of the input signal by a mixer 4', and radio-transmitted from a reception output antenna 14.
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