Yep. That’s exactly what I mean ...:-) Cheers Mark Forsyth http://jandmf.com
> On 13 Jun 2020, at 11:11 pm, "[email protected]" <[email protected]> wrote: > > By "up to date" I assume you mean firmware? > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Mark Forsyth > Sent: Friday, June 12, 2020 10:18 PM > To: Grant Youngman <[email protected]> > Cc: Elecraft Refl <[email protected]> > Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux > > Hi, > Elecraft have a handy little utility called RxSbNull.exe which does the whole > process. All you need is an up to date KX3, an up to date XG3, a Windows > computer and the utility. It works like a charm. Turn the radio volume down > before you start it though otherwise it’ll annoy the hell out of you. > > Cheers > Mark Forsyth > http://jandmf.com > VK3KW > >> On 12 Jun 2020, at 11:36 pm, Grant Youngman <[email protected]> wrote: >> >> Elecraft Tech Support seems (understandably) a bit slow to respond at this >> point. This is a repeat of a question I asked a few days ago. Maybe >> someone else will see it and have some insight (?). >> >> I have redone the opposite sideband null procedure in my KX3 (#8342) with >> KXFL3 filter board, using both the 2013 per-band null procedure, and the >> 2015 KXFL3 installation/calibration instructions. The procedures are >> essentially the same, with a minor difference in RIT setting, and the fact >> that the KXFL3 installation manual calls this out only on 20M rather than on >> each band individually. >> >> With my XG3 as a signal source, I get an excellent opposite sideband null >> using either FL1 or FL2 bandwidth settings on all bands. With narrow >> bandwidth and FL3 switched in, the null is very broad and shallow, and the >> opposite sideband is reduced only on the order of 10dB (+/-) rather than the >> very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite >> sideband remains clearly audible when tuning across a signal — say CW at 500 >> Hz bandwidth, etc. >> >> If anyone else out there has done either of these procedures, did you get as >> deep a null with FL3 as with FL1/FL2? I’m trying to determine if this is >> normal, or if there's an issue in the radio, possibly with my KXFL3 board. >> >> Thanks … Grant NQ5T >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> [email protected] > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to [email protected] > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
