A simple radio station

A simple radio station project for the High frequency Experiment

Using LC oscillator to generate a high frequency wave 90MHz-100Mhz, and a microphone to generate a small vocal voltage. When speaking to the microphone, the voice can be heard through FM radio.


The oscillator Circuit


Whole Circuit

The base voltage of the triode is near 3V and the microphone voltage is 5V.

Make sure the oscillating wave has Vopp larger than 3V


The pcb board I use


The oscillator wave(yellow) and microphone signal(blue)

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test123: aasdas Details Apr 13 16:39
admin: Thanks! Details Apr 09 11:46
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lqj12: cooooooooool Details Apr 08 21:34
Yunhan Huang: 这个功能是如何实现的? Details Apr 08 13:23