Posted by Mike Morrow-3 on Sep 18, 2009; 2:12pm URL: http://elecraft.85.s1.nabble.com/K1-s-n2258-and-new-filter-kit-tp3669575p3670075.html
Curt wrote:
>Awhile ago, recall reading some chatter about Elecraft offering a filter
>board kit for 20,17,15&10 once the sunspots started coming back.
>... has anyone successfully configured a 4-band filter for these
>bands on their own?
Stephanie/VA3UXB did a lot of work on this mod for both 2- and 4-band
filter boards, details of which are at: