DEVICE FOR DUPLEXING GAP FILLER FOR DIGITAL SATELLITE BROADCASTING SYSTEM, CONCERNED WITH INCREASING THE STABILITY OF GAP FILLER EQUIPMENT

摘要

PURPOSE: A device for duplexing a gap filler for a digital satellite broadcasting system is provided to duplex an amplifier of a gap filler when delivering a digital broadcasting signal to the gap filler from a satellite such that a receiving terminal can receive an output signal of the gap filler, thereby increasing the stability of a gap filler equipment. CONSTITUTION: A main amplifier(310) generates an alarm signal for a failure of a gap filler. A failure sensor(320) senses the alarm signal, and stores an output level and a waveform of the main amplifier(310) in a DB. A controller(330) directly or indirectly directs the main amplifier(310) to stop driving based on data transmitted from the failure sensor(320), and drives a preliminary amplifier(340).