中波发射台电磁干扰应对措施

Countermeasures to Electromagnetic Interference of Medium Wave Transmitter

分析中波发射台的电磁干扰问题,提出相应的应对措施。首先介绍中波发射台电磁干扰的概念、影响以及基本内容。其次,分析中波发射台的电磁干扰类型,包括被测信号承受的电磁干扰、线间耦合受到的电磁干扰以及地面干扰。最后,针对这些干扰问题,提出相应的应对措施,包括落实抗常规电磁干扰、注重抗共模电磁干扰、抑制线间耦合干扰以及节目信号线调整及机房隔离等。

This paper analyzes the electromagnetic interference problem of medium wave transmitting station and puts forward corresponding countermeasures.The concept,influence and basic contents of electromagnetic interference in medium wave transmitting station are introduced first.Secondly,the electromagnetic interference types of the medium wave transmitter are analyzed,including the electromagnetic interference of the measured signal,the electromagnetic interference of the line coupling and the ground interference.Finally,in view of these interference problems,the corresponding countermeasures are put forward,including implementing anticonventional electromagnetic interference,focusing on anti-common-mode electromagnetic interference,inhibiting inter-line coupling interference,program signal line adjustment and computer room isolation.