The trouble with the K3 notch is that it is outside the agc loop(audio notch) unlike the Icom radio. It may notch out the tone but not the carrier. A huge signal will still swamp the receiver. You will get arguments that this is better on receiver imd performance but I think I could live with receiver imd degradradation for the small if not brief time I would use the inside the agc loop notch.
73, John N1JM k6dgw wrote > I rarely use the manual notch on CW, I've had other rigs with notch > filters, and I rarely used them either ... it seems that the filter in > my head is enough. > > I'm not on SSB very much [compromised hearing, not mode-aversion], and > I've occasionally used the auto-notch on SSB when in > longer-than-a-contest-QSO mode. It's always worked very well for me. I > suppose there is some accompanying distortion, that's what happens when > you punch out a narrow part of the baseband, but honestly, it reduced > the carrier to where I couldn't hear it. > > I think, but do not know, that the performance of several of the K3 DSP > "features" are closely related to the AGC parameters being used. This > makes sense, the AGC is distorting the signal possibly before the other > "features" are getting the number stream. All of that is above my pay > grade. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 2014 Cal QSO Party 4-5 Oct 2014 > - www.cqp.org > > On 7/31/2014 3:12 PM, David Cole wrote: >> Hello, >> I find I must also agree with the complaints regarding notching... I >> just cam from a Icom 756 P3, and the notching was far superior to the >> K3. >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft@.qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791@.nabble ----- 73, John N1JM K3 #5986 P3 #1752 KPA500 #596 KX3 #926 XG3 XG1 -- View this message in context: http://elecraft.365791.n2.nabble.com/Auto-Notch-Revisited-tp7591810p7591833.html Sent from the Elecraft mailing list archive at Nabble.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
