Abstract: A signal output apparatus particularly suitable for wireless remote control unit is disclosed. This signal output apparatus includes a CPU section; an output data storage section for storing an output data given by the CPU section; a main clock signal generator section; a count section for generating a timing signal for representing the output data in accordance with the main clock signal generated by the main clock signal generator; an output control section for generating an output control signal whose level changes with the contents of the output data, in response to the timing signal; and a signal output section for receiving the main clock signal and the output control signal for outputting the main clock signal intermittent in response to the level change of the output control signal. The main clocks are modulated by the output control section and signal output section of the signal output apparatus.