James, In the situation you describe, only a low pass audio filter would help - it should be available soon. Perhaps some others are hearing the same thing, but have not described it as well.
I have also heard from K3 owners who have changed their AGC parameters closer to the SLP = 002 and TH = 002 that I normally use and have reported a big change in the apparent noise of their K3. There is not one answer for everyone - it all depends on the noise source. 73, Don W3FPR James Sarte wrote: > Greetings Al et all, > > In my case, I experience a significant amount of high-frequency white noise. > I'm not sure if that's the best way to describe it. Think of the > high-pitched whine you'd hear if you're travelling inside an airplane. > Adjusting AGC, gain, and even RX EQ settings don't have much of an effect. > If anything, adjusting AGC and gain controls just seem to reduce volume but > not actual audio characteristic. > > 73 de James K2QI > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Al Lorona > Sent: Friday, December 18, 2009 9:07 PM > To: [email protected] > Subject: Re: [Elecraft] K3 receiver noise questionable test results > > <snip> > > Help me out here: are we talking about the *amount* of noise, or the > *character* of the noise? I don't even think we've established the answer to > this. > > If it's the amount of noise that folks are hearing, wouldn't you just turn > the gain down to match your Other receiver? No two receivers have the same > amount of gain, and I think this point has been lost on some of us. > > If it's the character of the noise, and if you find it objectionable, and if > no settings of gain, filtering or noise reduction change it, I'd say > it's time to go back to the Other receiver, and I'm not being facetious > about this. > > <snip> > > Al W6LX > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 > ------------------------------------------------------------------------ > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.717 / Virus Database: 270.14.114/2575 - Release Date: 12/19/09 > 03:33:00 > > ______________________________________________________________ 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
