[Elecraft] K3 Receiver mush

[Don Wilhelm]

Mike,

Think about it - if there are multiple signals in the passband, the AGC 
will respond to the strongest, there is just no way around that fact.
If the signals can be separated by the DSP, and one is really strong, 
that strong station may be activating the Hardware AGC.  The only 
solution for the latter is a more narrow roofing filter - put the 
offending strong signal out of the passband of the roofing filter and 
use shift to get your sidetone for the desired signal back in order.

That may be too much "fiddling" for a run station in a contest, but it 
is a viable way to operate when trying to copy a weak station working 
close to a strong station.

73,
Don W3FPR

On 2/21/2017 9:25 AM, W0MU Mike Fatchett wrote:
> We noticed again during the contest hat when 3 or 4 stations called, all
> those signals would be flattened to the same level. Once you got to
> where one or two stations were calling the signal level would pop up
> substantially.
>
> I have played endlessly with slope and threshold with little effect.
>
> My K3 has the new syn boards as well and filters from 2.8 to 2.5.
> Latest firmware etc.
>