[Elecraft] Using CWT to determine 8-pole CW filter offsets (was: Shift pitch)

[Bill W4ZV]

ni0c wrote:
> 
> 
> I then used the Elecraft K3 Utility to experiment with 
> various offset numbers for the 8-pole filter. It only took 
> a handful of trials before I came up with a setting of 
> -0.09 that resulted in CWT being centered on noise 
> and a satisfactory transition with the 5-pole filter.
> 

-0.09 equals 90 Hz offset...very consistent with the ~80 Hz others have
measured in 8-pole filters.  This is no big deal for wider 8-poles but would
be a noticeable offset for the 400 and 250.

                                   73,  Bill

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