Your indignation is completely misplaced. Read the thread title. He's trying to interface to a KAT500, and last I checked Elecraft makes those. Dave AB7E > > On 5/5/2022 2:16 PM, Ray wrote: >> Did Elecraft make a FTdx Series of Radio Equipment ??? >> I Must have missed it. Did I sign in to the Wrong thread……….. >> >> Ray WA6VAB Elecraft K3