[Elecraft] filter alignment question

[W3FPR - Don Wilhelm]

If the tone pitch change is 20 Hz or less it is because of the quantizing
error in the K2 and nothing can be done about it.  The K2 firmware works to
preserve the pitch no matter where the filters are set as long as the signal
is anywhere within the filter passband.

73,
Don W3FPR

> -----Original Message-----
>
> I recently acquired K2 #1084 from a friend. I upgraded the radio
> to Rev. B, added the DSP module and am about half way through the
> KPA100. As I was aligning the filters I noticed something
> unexpected. Everything seems to be fine except that as I scroll
> through the CW XFIL filters, the tone of the test signal changes
> slightly. Is this to be expected? Is it possible to get the tone
> exactly the same for every filter setting or is a slight
> variation normal?
> The DSP was in bypass while alignment on the XFIL filters was done.
>
> The K2 is a wonderful little radio. It sits on top of an OMNI 6+.
> Its a tough decision lately which one to use, hi hi.
>
>