SCU-17USBinterfaceunit. PleaseseetheUSBDriver(VirtualCOMPortDriver)ontheYaesuWebsitefor detailsreferto(http://.yaesu/)intheFTDX1200productlessection. Note:DonotconnecttheUSBcableandSCU-17toyourpersonalcomputer untilafterthe“virtualCOMportdriver”installationiscompleted,because ...