I honestly do not know. I have only listened in ssb band. I have listed up at 
top or down in cq. I will try. 

Barney

On Nov 13, 2011, at 2:42 PM, "Guy, K2AV [via Elecraft]" 
<ml-node+s365791n6990641...@n2.nabble.com> wrote:

> Is this only on one end of the band, high or low, or is it constant across 
> the entire band? 
> 
> On Sat, Nov 12, 2011 at 10:01 PM, cbscholl <[hidden email]> wrote: 
> 
> > I bought the radio used earlier in the year. I believe that it is sn in 
> > late 2000 but it was to factory in 2010 for upgrades. I listened on same 
> > antenna with ic-765 and no issues. Are there and settings which are band 
> > dependent that could be causing the problem? 
> > 
> > Barney 
> > 
> > On Nov 12, 2011, at 9:28 PM, "w0mu [via Elecraft]" < 
> > [hidden email]> wrote: 
> > 
> > > The only distortion I have seen is with the NB on which he said he 
> > > checked.  Is this an early version of the radio?  Maybe this is a case 
> > > of oxidation on the connectors.  Only hearing it one band makes this a 
> > > very interesting problem. 
> > > 
> > > Mike W0MU 
> > > 
> > > J6M CQ WW DX CW Contest 2011 
> > > J6/W0MU November 21 - December 1 2011 
> > > W0MU-1 CC Cluster w0mu.net 
> > > 
> > > 
> > > On 11/12/2011 7:25 PM, Don Wilhelm wrote: 
> > > 
> > > > Whoops, I did not catch that on the first reading.  I concede and have 
> > > > no easy answers.  Even so, the SSB demodulation in the K3 is not band 
> > > > dependent either, so a good look at your antenna system and 
> > > > consideration for the reception of interfering signals from consumer 
> > > > devices are prime candidates for investigation. 
> > > > 
> > > > 73, 
> > > > Don W3FPR 
> > > > 
> > > > On 11/12/2011 9:15 PM, cbscholl wrote: 
> > > >> Why would rf feedback be causing an issue on receive? 
> > > >> 
> > > >> Barney 
> > > >> 
> > > >> On Nov 12, 2011, at 8:46 PM, "Don Wilhelm-4 [via Elecraft]"<[hidden 
> > email]>   wrote: 
> > > >> 
> > > >>> Barney, 
> > > >>> 
> > > >>> The most common cause for problems of that nature is RF feedback in 
> > the 
> > > >>> shack.  If you have another receiver, listen to the transmitted audio 
> > > >>> while the K3 is connected to a dummy load.  If there are no problems 
> > > >>> with that configuration, take a serious look at your antenna system 
> > for 
> > > >>> that troublesome band. 
> > > >>> 
> > > >>> There is nothing in the K3 modulation scheme that is band dependent 
> > - in 
> > > >>> other words, if it works OK on one band, it should work well on all 
> > > >>> bands unless something external to the K3 is causing a problem. 
> > > >>> 
> > > >>> 73, 
> > > >>> Don W3FPR 
> > > >>> 
> > > >>> On 11/12/2011 7:34 PM, cbscholl wrote: 
> > > >>>> I believe that I am hearing raspy or slightly distorted audio on 
> > receive on 
> > > >>>> my K3. It has current mods. I have noticed the problem only on 15 
> > meters. 
> > > >>>> The other band seem fine. Does anyone have any ideas or 
> > suggestions? Barney 
> > > >>>> 
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