Kenwood Tk-3107 Programming Software Download [exclusive] Site
You need , version 4.xx or newer. Do not waste time on other labels.
Two types exist:
First, a hard truth: The TK-3107 cannot be programmed with generic CHIRP software (an open-source platform that supports many legacy radios). CHIRP’s developers have historically noted that the Kenwood TK-x107 series uses a unique, proprietary communication protocol that has not been successfully reverse-engineered. This means your only reliable options are the official software (or its variants). Kenwood Tk-3107 Programming Software Download