In re-running the KX3 opposite sideband nulling procedure, I am seeing more I don't understand.
I have very carefully set all parameters according to the procedure, so I'm quite sure RIT, normal CW, dual receive is off, etc are set properly. The automatic null operation works fine for FL1 (I can hear and see the null being found), but does not null at all for FL2 or FL3. There is no change in test signal level for FL2 and FL3 when the automatic null procedure (or manual for that matter) is running. Screen ends up with Gain 00. Anomaly exists on all bands. In actual operation, the filters seem to work properly, and the display indications for width and filter selection are as they should be. The problem is that there is no opposite sideband suppression at all when FL2 or FL3 are selected. That's also what I am seeing during the automatic null procedure, when no change is observed in the signal level as the null operation progresses. There is good suppression when FL1 is selected. This KX3 is factory-built, S/N 0162, latest firmware. Any ideas? --Ed-- --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
