【摘 要】
：
采用如附图所示电路,能很好地解决高空作业的工作人员与地面的联系。它是一架超短波调频发射装置,可供高空操作员随身携带,地面只需一台带有调频波段的收音(收录)机接收,便
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采用如附图所示电路,能很好地解决高空作业的工作人员与地面的联系。它是一架超短波调频发射装置,可供高空操作员随身携带,地面只需一台带有调频波段的收音(收录)机接收,便能实现一定距离的无线通话,最大通话距离(半径)约为100米。电路分别由两只晶体管及其它元件构成,BG_1主要用作音频放大、BG_2是一级超高频振荡电路。当语言信号通过插在CZ处的微音器时,微音器将音频信号转
Using the circuit shown in the attached figure, it is a good solution to the connection between the aerial work staff and the ground. It is an ultrashort FM transmitter for high-altitude operator to carry, the ground only with a FM receiver (radio) receiver, will be able to achieve a certain distance of wireless calls, the maximum distance (radius) about It is 100 meters. Circuit consists of two transistors and other components, BG_1 mainly used for audio amplification, BG_2 is a UHF oscillation circuit. When the speech signal passes through the microphone inserted at the CZ, the microphone turns the audio signal
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