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短波发射机在广播领域承担着重要的任务,短波发射机的工作效率决定了播音工作能否正常进行。短波发射机在运行时需要不断调谐,使发射机的谐振保持稳定。改进发射机自动调谐系统能够减少甚至代替人工调谐的工作,起到节省人工费用、提高工作效率的作用。与人工调谐相比,发射机自动调谐还能减少故障的发生。本文对短波发射机的自动调谐系统内涵与工作原理进行探讨,在此基础上对自动调谐系统提出了改进的思路。
Shortwave transmitters in the field of broadcasting bear an important task, the efficiency of shortwave transmitters determine whether the normal conduct of the broadcast. Shortwave transmitters need to be constantly tuned during operation to keep the transmitter’s resonance stable. The improvement of transmitter automatic tuning system can reduce or even replace the manual tuning work, play a role in saving labor costs and improving work efficiency. Compared with manual tuning, automatic transmitter tuning can also reduce the occurrence of failures. In this paper, the connotation and working principle of the automatic tuning system of the HF transmitter are discussed. Based on this, the idea of improving the automatic tuning system is put forward.