The DTC-100-EA adds the ability to control the DTC-100 remotely without the need for computer interface.

Internal to the DTC-100-EA is a TTL232 to Ethernet module, USR-TCP232, and associated circuitry for direct interface to DTC-100 V6 or V5.   Using a simple web browser the desired IP address and port can be assigned.  Connection to the DTC is made through the provided 3.5mm cable. 

Using applications such as PST Rotator or HRD, antenna azimuth can be controlled without the need of a local computer.