It looks like your KXFL3 roofing filter may either not be seated correctly, or may be faulty. If reseating the roofing filter doesn't help, then I suggest to contact Elecraft support about this issue.
73, Matt VK2RQ > On 17 Dec 2014, at 11:12 pm, Ed G <ed.n...@gmail.com> wrote: > > > 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 matt.vk...@gmail.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
