[Elecraft] N0SS CW Filter Alignment

[John McClain]

Rich,
    I found your message very interesting but I didn't understand this
chart (i.e. what do the values of "ref -4 -6 -10" mean and where do
they come from)?  I am pleased with my filters but I must admit that
there is a change of 20 to 30 hz when I switch between USB and LSB
while using the same filter width (i.e USB with FL1 to LSB with FL1).
I also see a 20-30 hz change when I switch from CW FL1 (OPT1) and CW
FL2 (OPT1) but there is no shift between CW FL2 and CW FL3.  Even
though I have a registered copy of MixW, I have continued to use
Spectrogram because it has a resolution down to 2hz when you use the
cursor pointer and then read the pointed to frequency below the graph.
Try as I might, even though I don't feel that it is really necessary,
I can't get it any better than it currently is.

> On lower bands (below the reversal of BFO shift) got the following
> results reading the frequency off of the MIXW 2 display.  (Seems to
> provide a finer resolution than Spectrogram.)
>
>
> FL1 FL2 FL3 FL4
>
> USB   REF -4 -6 -10
> LSB REF 0.0 0.0 0.0
> CW REF -5 -5 -5
> CWR REF -7 -7 -7
>

    Was the above information obtained from MixW?

John
K7SVV
K2 #2569