中波广播发射机的原理及应用  

Principle and Application of Medium Wave Broadcasting Transmitters

作　　者：张雷 ZHANG Lei(Dalian 303 Broadcasting Station,Dalian 116600,China)

机构地区：[1]大连三〇三转播台,辽宁大连116600

出　　处：《电视技术》2024年第3期110-113,共4页Video Engineering

摘　　要：中波广播发射机作为广播传输的一种技术手段,对于广播行业的发展起着重要作用。深入研究中波广播发射机的原理和应用,并探讨其在广播行业中的重要性。首先,介绍中波广播发射机的基本原理,包括音频信号的调制与解调、射频信号的产生与放大、天线辐射等关键技术。其次,探讨中波广播发射机在广播行业的应用,包括广播覆盖范围的选择、信号质量的优化及干扰抑制等方面。最后,列举中波广播发射机在电台广播、天气广播、教育广播以及文化传播等特定场景的应用案例。Medium wave broadcast transmitter,as a technical means of broadcast transmission,plays an important role in the development of broadcasting industry.In this paper,the principle and application of medium wave broadcasting transmitter are studied deeply,and its importance in broadcasting industry is discussed.The basic principle of medium wave broadcast transmitter is introduced,including modulation and demodulation of audio signal,generation and amplification of radio frequency signal,antenna radiation and other key technologies.Secondly,the application of medium wave broadcast transmitter in broadcasting industry is discussed,including the selection of broadcast coverage,the optimization of signal quality and the suppression of interference.Finally,the application cases of medium wave broadcasting transmitter in radio broadcasting,weather broadcasting,educational broadcasting and cultural communication are listed.

关 键 词：中波广播发射机 信号调制 功率放大 天线辐射 

分 类 号：TN838[电子电信—信息与通信工程]