Re: K3 APF Adjustable Q

Posted by Matt Zilmer on Oct 31, 2010; 4:04pm
URL: http://elecraft.85.s1.nabble.com/K3-APF-Adjustable-Q-tp5688670p5691610.html

There are also other considerations.  In QRQ mode, RIT is N/A.  So
other than tuning VFO A to follow the peak, use SHIFT to do it.  Also,
SHIFT uses a 10 Hz resolution independent from the VFO tuning rate.
This doesn't leave many of the overloaded controls on the UI for a
PEAK control.

Having a changeable Q would be nice too, but as peaky as it is, it's
probably about optimal.  Lyle does good work, and probably agonized
for some time about how high and tight to make it.  Really, there's no
control for the Q since WIDTH is left for normal use.  Unless one is
"found".

BUT - who knows what the final outcome will be.  Elecraft can be full
of surprises.

73,
matt W6NIA


On Sun, 31 Oct 2010 08:58:57 -0400, you wrote:

>If I had a choice between variable center frequency and adjustable Q, I
>would choose adjustable Q.
>
>My logic is: The center frequency automatically follows the sidetone
>frequency so I have no need to adjust it however the fixed Q has a bit of
>ring and at times I would like to back it off (widen) it just a tad.
>
>Otherwise it's a HUGE improvement, sounds great and I wish to thank those
>who made it possible.
>
>73
>N4LQ
>Steve
>
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