Saturday, November 30, 2019

A frequency agile 7 MHz FM exciter

People don't often build FM gear on HF. It takes up a wider bandwidth than SSB and is less efficient. But it is very simple. This video discusses how you can generate FM signals on 7 MHz with two transistors. 

PS: Find hints and tips for working DX in Minimum QRP. It's the top-selling manual on the equipment, antennas, operating and strategy of successful QRP operating. And its techniques work for 100 watts as well. It's available for under $US 5 each in electronic form. Or you can get a paperback version. Visit VK3YE Radio Books to find out more. 


  1. This is a great blog. but can't you post your circuit diagram here too?


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