2无线传声器接收机的工作原理无线传声器接收机有单通道接收机和分集接收机两种程式。无线传声器接收机包括天线系统,射频放大器,限幅器,分集接收器,本机振荡器,混频器,中频放大器及滤波器,鉴频器及滤波器,静噪电路,音频放大器及输出电路。单通道无线接收机原理方框图,参见图7; 2 wireless microphone receiver works Wireless microphone receiver has a single-channel receiver and diversity receiver two programs. Wireless microphone receiver including antenna system, RF amplifier, limiter, diversity receiver, local oscillator, mixer, IF amplifier and filter, frequency discriminator and filter, squelch circuit, audio amplifier and output circuit . Single channel wireless receiver principle block diagram, see Figure 7;