To connect to a computer, you must purchase the Icon interface for $140, and a soundcard interface for $100 - OR NOT! This circuit will cost perhaps $25 (with case and cables and plugs) and does all these neat things: The 706 has the usual 1/8 th″ CI-V remote control jack. See my Getting Started in PC Soundcard Digital Modes page. Computer-enhanced radio control and programming, automated logging, and a multitude of digital soundcard modes. Interfacing the radio to your PC has too many “way-cool” advantages. Icom 706MkIIG Computer Control and Soundcard Interface Home » Ham Radio » Icom 706MkIIG » 706: Computer Control and Soundcard Interface