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.

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The oscillator Circuit

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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

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The pcb board I use

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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