I don't think front end overload is your problem. I've had S9 + 45db signals sound perfectly fine on my K3 with no audio distortion and no off-frequency artifacts at all. I use the least amount of AGC possible ... AGC THR = 008 and AGC SLP = 000. The only way I've ever experienced audio distortion is when I turn the AGC off.
On the other hand, K6LL and others have pointed out that the AF limiter in the K3 kicks in a bit early even if it is set to the maximum of 30. It's a pretty abrupt limiting action that can cause audio distortion, and if you have yours set lower than 30 you'd probably hear problems with even weaker signals. Also, are you using a speaker, either an external one or the one in the K3? You could be getting mechanical resonances on strong signals if you are. 73, Dave AB7E WILLIS COOKE wrote: > I have had some similar observations on ten meters. After reading your > report I am inclined to agree with you. I have a station about 5 miles away > who I contact on a regular basis on 10 meters, both SSB and CW. He is > usually very distorted here and I have not been able to understand because > others on the net do not seem to observe the distortion. I have also heard a > few stations with strong skip that seem the same way. I have not tried a > different antenna, but turning off the pre-amp helps some and engaging the > attenuator helps even more. > > It makes sense to me that the front end overload clipping is activating and > distorting the signal. It may not be such a problem now that I think I > understand what is going on. > > Willis 'Cookie' Cooke > K5EWJ > > > --- On Sun, 5/3/09, orbarrett <hoosa...@hotmail.com> wrote: > > >> From: orbarrett <hoosa...@hotmail.com> >> Subject: [Elecraft] K3 on-channel strong signal overload? >> To: elecraft@mailman.qth.net >> Date: Sunday, May 3, 2009, 9:39 PM >> Hello all, >> >> I just finished operating my K3 from my friend's >> driveway using a portable >> dipole on 60M, and wanted to inquire about some incoming >> signal overload >> that cropped up. I was joined while ragchewing with some >> friends on 5371.5 >> > > ______________________________________________________________ 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
