[Elecraft] New 3.41 IMPROVED RX LOW-FREQUENCY RESPONSE in AM/SSB/CW MODES

[Alexander Ponomarenko]

My K3 feel the difference between 3.30 and 3.41.
Open these plots (LSB/USB-mode) in two different windows:
FW3.41 - http://forum.cqham.ru/download.php?id=49432
FW3.30 - http://forum.cqham.ru/download.php?id=49431
RX-EQ is equal for both plots. Plots for Phone-out.

P.S. But my K3 has been modified: 
http://ur5lam.jimdo.com/elecraft-k3-mod-s-page/

73!
Alex UR5LAM

Wayne Burdick:
> Lyle and I will discuss your findings, retest the passband and get  
> back to you. However, I'm virtually certain that 3.41 is vastly  
> different from 3.30, as others have noted, so this is a mystery.
> 
> 73,
> Wayne
> N6KR
> 
> On Oct 7, 2009, at 4:14 PM, mark roz wrote:
> 
>> To me there is no difference between 3.30 and 3.41. Same low freq.  
>> response.
>> However, for my needs it is OK. Yes, I'm adjusting shift and width....