Interesting to me is position today that 2.1 kHz is narrow. For many decades, a 2.1 kHz filter was normal, and sometimes only SSB filter.
Heathkit SB-101 etc 350 - 2450 (center 1400) Collins KWM-2A etc 400 - 2500 (center 1450) Sometime during the 90s, or so, the standard seemed to move to 2.4 kHz and up. What happened? Because of my early experiences with a SB-101, I decided that the Heath SSB BW settings were for me. Therefore I have a 2.1 kHz roofing filter installed and set the BW to 350 - 2450 and stored into NORM1. Which leads into a K3 issue. I believe that it would be a service to all of us users if the K3 manual had a set of optimal center frequencies for some of the pseudo standard settings optimized by those before us at Heathkit, Collins, and others. And it would be nice if the NORM button was programmable. I understand that there are the NORM1 and NORM2 settings, but for me, simple NORM is a wasted SSB button as I never use a 100 - 2900 Hz BW. And it would be nice if there was a default SSB center for each of the filters in Filter configuration. Tapping XFIL would not only move to the next filter, but also set to it's optimal SSB filter center frequency. John, KN5L ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html