Which connector is located on the back of the AN/PRC-163 handheld radio?

The connector located on the back of the AN/PRC-163 handheld radio is the External Mission Module Interface (EMMI) 20-Pin Connector. This specific connector allows for integration with various equipment and mission modules, enhancing the capabilities of the radio in tactical communications. It facilitates the connection of external devices that can improve functionality, such as additional antennas or communication systems that handle data transmission, thereby extending the tactical applications of the radio.

In contrast, the other connectors mentioned may serve important functions in different contexts but are not found on the back of the AN/PRC-163. For instance, the audio jack is generally used for audio input/output but does not provide the extensive interfacing capabilities that the EMMI connector does. The power input connector is crucial for powering the unit but is typically located elsewhere. The data transfer port is essential for transferring data but may not be specifically integrated into the design of the AN/PRC-163 in a way that is identified as the primary connector on the back.