Re: End whistling into the mic

Allard PE1NWL
 

You could use this simple CW mod to generate a carrier for tuning:

https://github.com/amunters/bitx40/blob/master/CW-CARRIER%20wiring.png
If you use a 100K potentiometer instead of the fixed 4.7K resistor you can control the power of the carrier too.

73 Allard PE1NWL

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