QCX CW TRANSCEIVER problem.

[email protected] #19377 QCX CW TRANSCEIVER. When I turn on the transceiver I do not receive anything, but I only listen to a sound like a self-oscillation. I attach the audio file. Some idea ? Thank you.
VK5EEE Member Profile All Messages By This Member #19418 I hear this same sound when trying to listen above a certain frequency (from memory around 12 or 13 MHz) on my QCX which I built for 30m. It has something to do with the programming and quadrature -- Hans said he may fix that in a future update of the firmware. But not sure why you are experiencing it, and I'm sure that those who understand this issue would be able to reply and let you know what to do. A little surprised no one yet answered you here, so hope you get answers very soon.

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