If you’re using a USB cable like the KCT-53U , ensure you install the Prolific or FTDI drivers first so your PC recognizes the "Virtual COM Port".
Software is only half the battle. You’ll also need a physical connection between your PC and the radio. Kenwood Tk-3000 Programming Software Download -HOT
Open KPG-137D , select the correct COM port, and click "Read." Pro Tip: Always save a backup of the original factory "codeplug" before making any changes. If you’re using a USB cable like the