Hi John:
I suspect several (probably many) have already beat me to the punch
on this one, but...
Yes, it's quite easy to change the sidetone and filters to a
different frequency. However, it's best (and most easily)
accomplished with Spectrogram and your PC sound card connected to the
K2.
When I did my filter alignment with spectrogram I found the perceived
tone center lowered progressively as I went from wide to narrow. I went
back and redid the alignment with spectrogram in logarithm display mode
and the tone center became consistent from wide to narrow.
- Keith KD1E -
- K2
Hi,
I have an odd question for the group.
As hams age, we begin to notice that our hearing decreases in
sensitivity in the higher registers.
In a K2, one can easily change the Spot audio frequency downward to
accommodate this process.
Is it straightforward to adjust the filters so their
Yes, John, both the variable filters and the DSP filters may be
adjusted for center frequency. However, while we older folk may lose
our abilities to hear, say, above 4000 Hz, there is not likely to be
a significant loss differential in the range for typical side tones,
say 550-1000 Hz.
John,
Not an odd question at all:
Certainly it is possible (and desirable) to center the CW filters at your
chosen sidetone pitch.
Adjust the BFO frequencies to do just that. Spectrogram is the tool of
choice for most folks to adjust the passband positioning. If you have not
used it before, I
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