Bruce,
With FT-891 the specific is that for CAT control (sync) you need to also connect radio directly to computer with a separate USB cable. You will find more info here: Cables for Yaesu FT-891
Bruce,
With FT-891 the specific is that for CAT control (sync) you need to also connect radio directly to computer with a separate USB cable. You will find more info here: Cables for Yaesu FT-891