[Elecraft] K2 APF implementation?

[Ron D'Eau Claire]

Jeff, I have compared the K3's APF with the filter offered in Elecraft's
AF-1 Active Filter mini-module kit. There is no difference I can hear in the
performance. Actually the AF-1 has more flexibility since you have two
levels of "Q" to choose from, variable gain, and an independent variable
low-pass filter function. 

At $60, it's a great little filter.

For an old vacuum-tube jockey like me it's satisfying to see digital gear
struggling to do something as well as analog circuits, Hi! I'll hand it to
Lyle; he succeeded with the APF. It's darn near as good as the AF1.

Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of jeff martin
Sent: Sunday, November 28, 2010 6:37 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K2 APF implementation?

Any chance we might see an implementation of  APF for the audio-based DSP of
the K2? I realize it might require swapping out U3 to implement the change.
I would even give up some of the other functionality if adequate memory
resources don't exist to implement an additional function.

Any interest?

Jeff
N7KRT