OK.. Update... After conferencing with a friend I figured out that the CAT connection that the YT-100 tuner uses is different than the 6 pin connector the SignaLink uses.? Got it all connected last evening and made contacts on FT-8 and FT-4 on 20m.? Proving once again that somewhere someone else already had this question or issue and solved it.? Thanks for the group!!? 73? de NZ5TX