I use a Yaesu GMDXA1000. Yaesu rotors have a port for a computer interface. It requires either the optional Yaesu interface box, or a 3rd party. I replaced my Yaesu controller with an MDS RC1 rotor, which is available from MFJ. I replaced the Yaesu rotor box because the computer interface started acting flaky. I then use PstRotor software for the computer control.
Don
K9AQ