Which of the following is NOT listed as a type of radio communication system?

• A. Consolette radio
• B. Trunking system
• C. Repeater system
• D. Microwave link

Answer: (D)

The concept here is understanding what counts as a radio communication system for law enforcement use. A microwave link is a point-to-point backhaul connection between fixed sites that carries radio traffic, but it isn’t itself a user-facing radio system like a console, a shared-channel network, or a repeater that directly connects field units to the dispatch center. In other words, microwave links move the voice/data between bases, not provide the radios that officers actually use in the field.

Consolette radios refer to the dispatch console setup that interfaces with portable or mobile radios, making it a direct radio communication system. A trunking system efficiently allocates multiple channels as needed for many users, enabling radios to share a common pool of frequencies. A repeater system extends the reach of radio signals and helps provide coverage over larger areas. These three are all understood as radio communication systems used by agencies, whereas the microwave link serves as the network backhaul rather than the end-user radio system.