Does the SignaLink use the computers Serial or USB Port to key the radio?
No! Unlike other interfaces, the SignaLink never requires a serial or USB connection. This is particularly handy if your computer doesn’t happen to have one available (see Question #2 & #3)! In addition to simplifying your installation, this feature also reduces the likelihood of the computers RF noise getting into your radio. It also eliminates serial/USB related transmit problems that plague other interfaces. The SignaLink uses a built-in digital Auto-PTT circuit that virtually eliminates the need for a serial or USB port connection.
