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Television r ebroadcast transmitters are often used in tandem throughout the mountainous country of Japan. The resulting group-delay characteristics in transmitters must be controlled within a 250 nS tolerance to avoid deterioration in the quality of the TV signal. The author has developed several kinds of SAW IF filters to easily equalize groupdelay characteristics in the 16.5 - 22.5 MHz IF stage of the rebroadcast transmitters. design, and characteristics of SAW filters, and on the a pplication of a SAW filter in a simulator of a television rebroadcast transmitter. Bulk wave generation from IDT on several piezo-electric materials and its relationship to spurious response are investigated by using holography technique and RF-burst signal transmission test. This p aper reports on the testing of materials,
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Takahiro Chiba (1979) studied this question.