Tag: radio transmitter

Frequency Modulation tutorial and FM radio transmitter circuit

This video explains what frequency modulation (FM) is and shows a simple low powered FM radio transmitter circuit you can build. It has a range of about 20 meters. PCB        Design files

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Amplitude modulation

Amplitude Modulation tutorial & AM radio transmitter circuit

This video covers the history of the discovery of radio waves, to the creation of simple oscillator based radio transmitters. Then I explain what modulation and amplitude modulation are, and show you how to build a low powered AM radio transmitter out of a TL072 dual op amp IC.

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