| 摘要 |
PROBLEM TO BE SOLVED: To cancel a plurality of channels with one receiving antenna, and cancel interference of its own station in performing broadcast relay with a single frequency only with a pair of receiving antenna and an antenna for sneak path. SOLUTION: A phenomenon in which a part (a sneak path wave 22 transmitted from a transmitting antenna 13) of transmission waves of its own station transmitted by a relay broadcasting device 6 sneaks into a receiving antenna 11, is subjected to phase synthesis with a sneak path wave 22 received by using a receiving antenna 12 for canceling sneak path provided apart from the antenna 11. Thus, the sneak path phenomenon is canceled in each channel after separating a received signal in each channel by using a duplexer (a receiving antenna duplexder 1 and an antenna duplexer 2 for sneak path canceling). |
