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Re: K3/KX3 Operating Tip: APF (audio peaking filter) for weak-signal CW work

Posted by Pierfrancesco Caci on Jun 27, 2012; 9:39am
URL: http://elecraft.85.s1.nabble.com/K3-KX3-Operating-Tip-APF-audio-peaking-filter-for-weak-signal-CW-work-tp7558208p7558246.html

>>>>> "Ian" == Ian White GM3SEK <[hidden email]> writes:


    Ian> Wayne Burdick wrote:
    >> on the K3, it's labeled "DUAL PB" (hold). The K3 actually provides two
    >> different special filter functions; use the DUAL PB menu entry to set
    >> up the switch for APF.

    Ian> On the K3, it would be really helpful to have an option to reconfigure
    Ian> that button on the K3 as "tap = APF" so that we don't have to lose "hold
    Ian> = DUAL PB".

    Ian> "Tap = APF" would also bring the K3 into line with the KX3.

    Ian> Obviously APF and DUAL PB cannot both be selected at the same time, but
    Ian> it would still be helpful to have either one available QUICKLY on the
    Ian> same button.

    Ian> No XFIL users would be inconvenienced by making this a configuration
    Ian> option.


I'd hate to lose the possiblity to quickly tighten the filters with one
tap (think digimodes, where you switch from looking at a 3 kHz waterfall
down to a single psk signal with just 3 presses of that button).
What about long hold (more than 3 seconds)? I think long hold is already
used somewhere else in the firmware, so the function to recognize it is
already there.

Pf

--
Pierfrancesco Caci, ik5pvx
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