Analysis of the Operating Principle and Maintenance of Power Amplifier for Ground Digital Television Transmitter
With the wide application of digital television technology,terrestrial digital television transmitter,as the core equipment of signal transmission,plays a vital role in the field of radio and television.Among them,the power amplifier,as one of the core components of the transmitter,directly affects the transmission quality and coverage of the signal.However,due to the complex and changeable working environment of the power amplifier and the long-term continuous operation,it is inevitable that various failures will occur,such as unstable RF output power,excessive harmonic radiation,out-of-band radiation problems and performance degradation caused by excessive temperature.In order to ensure the stable operation of terrestrial digital television transmitter,the operation principle of power amplifier is deeply analyzed,and effective maintenance measures are put forward for common faults,so as to improve the working efficiency of transmitter,prolong the service life of equipment and ensure the service quality of radio and television.
terrestrial digital television transmitteroperating principle of power amplifierbreakdown maintenance
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