What is the base station called that receives low-power transmissions from portable or mobile radios and rebroadcasts at higher power to extend the range?

• A. Transmitter
• B. Repeater
• C. Router
• D. Switch

Answer: (B)

Extending radio coverage is achieved with a repeater. A repeater sits at a fixed base and listens for a low-power signal from handheld or mobile radios. It then regenerates that signal and retransmits it at a higher power, often on a different frequency, to reach areas that the portable radio alone couldn’t cover. This setup boosts range and improves communication in challenging terrain or across larger zones. A transmitter by itself would emit a signal but wouldn’t extend reach through rebroadcasting. Routers and switches are data-network devices, not used for boosting two-way radio voice range.