Hi, I am running an HR-10 RX in my shack outside and am wondering how to cure an annoying fault. Or, this may be bad design, but I don't remember this from when I was a kid.
When i turn up the RF Gain, and end up close to full on it, I get a shift down in frequency of the CW note. So far that I have to retune the BFO to get it back. The RF Gain is in series with the Cathode of the first RF stage of the RX. perhaps a Zener diode to cure it? And if so, I guess I should measure the voltage someplace and clamp with a zener, but then again, I would be modifying the whole circut. Anyone know how to fix this? Best 73, Alan
