| 摘要 |
PROBLEM TO BE SOLVED: To improve the separation degree of transmission and reception by circuitry so as to cope with a problem such as abnormal oscillation generated when the separation degree of this transmission and reception is low in a repeater transmitting broadcast waves etc., to a remote place. SOLUTION: Concerning a received wave from a reception antenna 10, reception levels in the case when detouring of a transmission wave exists and in the case when it does not exist are detected by a reception level detector and compactor 17 by way of a switch 18. An amplitude and phase adjusting device 14 adjusts the phase and amplitude of the transmission wave so as to reduce the difference between the reception level to remove detouring of the transmission wave to obtain n advantageous effect of realizing a small repeater securing the separating degree of transmission and reception. |
