Al makes a good point - the steepness of the digital filter skirt makes a big difference in what you hear. In high QRN condx on cw (i.e., narrow selectivity), it's often desirable to use shallower sloped dsp filtering to avoid ringing. Has there been any discussion about a K3 menu option to vary the dsp filter slope? Several other DSP/SDR radios allow you to vary a "TAPS" setting for the digital FIR filters.
>So the amount of ringing depends on the filter bandwidth and the steepness of the filter skirts. The narrower the bandwidth and the steeper the skirts, the more ringing. >The above is true for both digital and analog filters. 73, Barry N1EU _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
