The signial link is connected to the data on the radio No place left to connect the computer to.

Richard DeRose

Richard,

there are two sockets on the back of the FT-817/857/897(D) rigs. One for DATA AFSK audio and PTT, the other for CAT control:

You need a CAT interface cable if you want CAT control of your rig.

73
Bill
G4WJS.