Re: [Elecraft] KX1 signals peak at low audio beat frequency

Hi, Mike. I noticed exactly the same thing here. In fact the passband ripple of my KX1 is pretty bad, 600Hz is actually in a trough not a peak! And when I narrow the filter to the narrowest setting it centers on around 480Hz. Neither of these is a fairly significant issue in practice though.

[Elecraft] KX1 signals peak at low audio beat frequency

First post to this list The KX1 has a fixed BFO designed for 600Hz offset; this is where I expected signal audio to peak. I validated what I thought I was experiencing that signal audio peaks closer to 400 Hz than 600 Hz, lower than expected. I put an audio spectrogram on the audio out of my