WIRELESS TRANSMITTING SYSTEM

摘要

PURPOSE:To minimize a non-uniformity of electric field strength and an influ ence due to an arrangement of a receiver and to execute the stable communica tion by installing two antennas of a transmitting machine and transmitting alternately from two antennas. CONSTITUTION:A transmitting machine 1 connects two antennas 21 and 22 through diodes 31 and 32, and the antennas 21 and 22 are arranged at the opti mum interval (l) so that a space distribution of electric field strength mutually made by the two antennas 21 and 22 can become reverse. A transmitting signal (a) is added to the antenna 21 and a transmitting signal (b) is added to the antenna 22. Namely, the antennas 21 and 22 are changed over and transmitted in a time base manner. The receiver can receive at least either of the antenna 21 or 22, and controls with CPU so as to synchronize with and receive the signal which first synchronizes and receives the signal receiving the signal. Consequently, a non-uniformity of electric strength and an influence due to the arrangement of the receiver can be minimized and the stable communication can be executed.