PURPOSE: To make an error operation not caused between each equipment, in a manner, with the signal given toward a remote control transmitter from a remote control receiver, to operate the remote control transmitter by said signal.

CONSTITUTION: Not only with the remote control signal S1 transmitted toward a remote control receiver 2 from a remote control transmitter 1 but with said signal S1 transmitted also from the receiver 2, only when said signal S1 is caught, a remote control signal S2 is transmitted from the transmitter 1. That is, the signal S2 can not be produced even if simply handled operation buttons 3, 4, 5 of the transmitter 1, but be produced if handled any of the operation buttons 3, 4, 5 only when in a reception of the signal S1.