WEAK ELECTRIC WAVE TRANSMISSION DEVICE

PROBLEM TO BE SOLVED: To provide a weak electric wave transmission device capable of eliminating occurrence of such peak as exceeds a specific level of an OFDM signal, to cope with abrupt change in instantaneous transmission power.SOLUTION: The weak electric wave transmission device includes an amplitude limiter circuit 3 which receives the OFDM signal and outputs such signal as the amount of waveform that has been exceeded is cut, in a waveform in which a peak value of an input signal waveform exceeds a specific value, a gain change circuit 4 which increases/decreases an output of the amplitude limiter circuit 3, and a control circuit 6 which controls the gain of a gain change circuit 5 based on the amplitude limit level information of the amplitude limiter circuit 3. The control circuit 6 controls the gain change circuit 5 so that a peak power of the signal transmitted by the weak electric wave transmission device becomes constant in relation to the amplitude limit level.