Probably Kenwood, since early on Elecraft adopted Kenwood protocol. Wes N7WS On 11/14/2021 5:34 AM, chris grierson via Elecraft wrote: > I am trying to use my K3s with a program but it does not list the K3s in the > drop down list > > is there another rig from the drop down list that would let me use that is the > same as the K3s > > thanks Chris > >