>I cannot get my K3 to drive the new SPE 1K-FA amp. I must have > something wrong in the Config menu? I got the RS232 connecting cable > from Steppir along with the amp. Any suggestions out there? the K3 > will not "key" the transmitter. Thank you. You also need a male RCA-to-RCA cable between the K3's key line output and the SPE's "Relay" jack. Paul, W9AC