It is quite simple to tell the difference between a birdie and an AM station in my analog vfo board.
The AM signals are very steady in tone compared to the birdies. I am not sure if this applies to the
raduino fed boards.
I also have the 199 birdie and a few more weaker ones between 7.1 and 7.3, will try and analyse
this after I am back in town tomorrow.
73
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Raj, VU2ZAP
Bangalore, India.
Raj vu2zap