Which device provides DMR with single point control?

• A. ITU
• B. DMR
• C. C4I
• D. HMI

Answer: (D)

A single point control for a DMR system is provided by the human-machine interface. This device acts as the operator’s unified control surface, translating actions into commands for the DMR network and presenting system status, alarms, and controls in one place. It streamlines operations by allowing configuration, monitoring, and troubleshooting from a single point, reducing the need to interact with multiple separate components. The other options describe broader standards or system concepts (an international standards body, the radio system itself, or an overall command-and-control architecture) and do not function as the dedicated, centralized interface used for direct, single-point control of DMR.