A BROADCASTING SYSTEM HAVING AN AMPLIFIER WHICH MAKE POSSIBLE EMERGENCY CONTROL

摘要

A broadcasting system having amplifiers that output an emergency sound source according to an emergency signal is provided to previously prevent accidents on the air and to obtain the maximum broadcasting efficiency by enabling emergency guidance broadcasting regardless of existing broadcasting flow and monitoring an amplifier in real time so that automatic switching to a reserve amplifier can be made when the current amplifier is abnormal. In a broadcasting system having amplifiers that output an emergency sound source according to an emergency signal, each amplifier contains an emergency sound source input terminal and a contact input terminal so that an emergency sound source can be amplified and outputted when an emergency signal is detected. Also, each amplifier contains an input signal monitor, an output signal monitor, and a signal comparator in order to monitor sound source signals in real time and to automatically switch the passage of input/output signals into a reserve amplifier through a switch driving part when an abnormal state occurs.