[Elecraft] K3 filter problems

[Don Wilhelm]

Jim,

I am not certain what you are calling "ring and sound hollow", but on my 
K3 I can hear what I believe is audio limiting on strong signals - it 
happens on both SSB and CW and has nothing to do with the filters (I 
have only the 2.7kHz).  I believe the cure in my case is the AF mod, but 
I have not yet installed it.  You might want to consider that mod to see 
if it makes any difference.

73,
Don W3FPR

Jim Hoge wrote:
> Greetings,
>  
> I seem to have a problem with either how I set up my K3 or with the 
> filters. When first built  the radio, I had only the stock 2.7 filter 
> in it. I noticed that the receive audio began to ring and sound hollow 
> when the bandwidth was reduced to about 1K. I now have the 1K filter 
> in position 3 and the 400Hz filter in position 4. (I may add a narrow 
> phone filter in the future in position 2.) Filter widths are 
> configured at 1K and 400 respectively. All filters are enabled for 
> both cw and digital. I note that the filter in use does coincide with 
> selected bandwidth but again, as I narrow down to 1K or tighter, the 
> received sound is still hollow and ringy. BTW, only the 400 Hz filter 
> has gain added in the configure menu to offset its loss. Have I done 
> something wrong?
>  
> Tnx,
> Jim W5QM
> #1816
>
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