This is exactly what I have noticed too. Not even 10 signals are needed either. /SM2EKM ------------------------------------------- On 2011-12-04 20:53, Merv Schweigert wrote: > >> Also, in the heat of the contest or DX pile up most reporters do not >> recall how they had their AGC parameters set (threshold, slope, AGC >> decay soft/hard, fast or slow, and fast/slow settings etc. If you can >> let us know your complete set up for AGC parameters, if you are using >> headphones or speakers, the signal strengths, CW or SSB, RX b/w, what >> different settings you tried etc., that will be extremely helpful. >> > AGC DCY = NOR > AGG HLD = 20 > AGC PLS = NOR > AGC SLP = 000 > AGC THR = 008 > AGC F = 200 > AGC S = 020 > > Headphones and speaker, no difference > signals S3-S4 range > CW > all bandwidths, use mostly 400hz and narrower. > Tried AGC DCY = SOFT (have PF1 programmed to switch that in and out fast) > ALL settings of SLP and THR > Turning off the AGC improves the "mush". > Loud signals are no problem at all, the K3 handles loud signals better than > any radio.. its when multiple signals of about S-4 are on this occurs, > more > than two or three, a pile up of same strength signals. > I can understand it may difficult to reproduce unless you have a way to > have > 10 signals of the same strength, close to the same freq, and keying, just a > carrier will not reproduce the effect, has to be keyed signals you are > trying > to copy. They turn into a single level buzz of sorts. > > One note - If signals are below S9+20 and turning AGC off does not help, >> its probably not a DSP AGC or H/W AGC issue. >> >> Also, make sure to use the AGC Limiter menu setting to hard limit audio >> levels if you use AGC OFF. >> > Never use NR or NB and have the AGC limiter set for no AGC times. > > In my rough gestimation it seems that signals in the S3-S4 range need to > not trigger > the AGC as they do, if one could set the THR to higher level? perhaps > it would stop the > problem. > Is it possible to increase the range of SLP and THR to move the point > where S-3 or S-4 > signals trigger the AGC? > Thanks much Eric. 73 Merv K9FD/KH6 >> > > ______________________________________________________________ > 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 >
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