Which type of radio is described as having a transmitter and receiver located in a fixed place?

The correct choice describes a base station as a type of radio that has both a transmitter and a receiver located in a fixed, predetermined location. Base stations are typically installed in places like emergency dispatch centers, hospitals, or communication towers, providing a stable communication point for radio transmissions. These stations have a higher power output and are equipped with larger antennas, which enable them to cover greater distances compared to other types of radios.

Base stations are crucial in emergency medical services (EMS) as they facilitate communication between EMTs, paramedics, and dispatch centers. This constant and reliable communication helps ensure that emergency responders can receive information about incidents and relay updates efficiently.

In contrast, mobile radios are designed for use within vehicles, offering mobility but are not fixed in one location. Handheld radios are portable and meant for individual use, allowing users to communicate while on the move. Repeater stations, while essential in extending communication range, are not standalone entities with their own transmitting and receiving capabilities; rather, they act as relay points between two radio sets to amplify signals. Each of these alternatives serves a specific purpose but does not provide the stable, fixed installation aspect associated with base stations.