[Elecraft] Variable bandwidth crystal filter

[Chuck Guenther]

Joe Subich, W4TV wrote:
>
> The beta firmware does not allow setting width in 10 Hz steps.  Only 
> the center frequency (FC) is adjustable in 10 Hz steps. 
>
>   

Joe, thanks for this information.  Now I get it (I think). 

Just to review,  about a year ago, we got 10 Hz CW pitch increments with 
firmware version 2.33.  This allowed the pitch to be varied in 10 Hz 
steps, keeping the signal centered in the passbands of both the roofing 
filter and the DSP filter.  However, the passband "SHIFT" control still 
has the 50 Hz increments.  The new firmware will provide us with 10 Hz 
passband tuning, thus making the SHIFT control much more useful  when 
employing very narrow CW filters. 

Please correct me if I'm wrong.

73,
Chuck  NI0C