Good point, Paul, but my experience with this sort of filter says that variable Q also affects the peaking amplitude.
That is, the higher Q is obtained with more feedback which results in more gain. Ron AC7AC -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Paul Christensen Sent: Sunday, October 31, 2010 4:50 PM To: [email protected] Subject: Re: [Elecraft] K3 APF Adjustable Q I suspect the moment variable Q were to become available, soon thereafter, the next request would be for variable peaking amplitude. At some point, Elecraft must decide what they want from APF -- is it an emulation of a filter used in a transceiver from twenty years ago? Or, is it something more? If it's more, then it may as well be a full-blown parametric EQ channel with variable amplitude, variable frequency, and variable Q. I tend to agree with Al's comment where he noted that sometimes the most effective controls are the one's that are easily accessible to the op without the need for added manipulation. Paul, W9AC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
