Hi Greg, I assume that the SO-239s in the K3 are screwed in place (ala the KPA100), not riveted... If this is the case, it really shouldn't be too difficult for many Elecraft builders to just install the N connector if so desired, should it? ;o) Wish I could be at Dayton this year! Thanks for fielding the question pileups. Cheers, Julius n2wn