Check that the radio is turned ON and the cable is firmly seated in the mic jack. Ensure your COM port settings in the software match the Device Manager.

Overview The Tait TM8110 is a vehicle-mount and fixed-station radio from Tait Communications used by commercial, public safety, and industrial customers. “Programming software” for radios typically means a vendor-supplied Customer Programming Software (CPS) or Configuration Utility that allows channel plans, signaling features, and security settings to be loaded into the radio, plus device drivers and sometimes firmware updates. Finding, downloading, and using such software raises practical, legal, and security considerations.