What feature of base station radios makes them ideal for fixed locations?

Base station radios are ideal for fixed locations primarily because they have the most powerful transmitters. In a fixed installation, such as a fire station or command post, the ability to transmit over long distances is crucial for effective communication during emergencies. The powerful transmitters in these radios allow them to overcome obstacles and reach other radios further away, which is vital for coordinating responses and ensuring all personnel are in contact.

The other features listed do not contribute significantly to the fixed nature of base station radios. While smaller radios and those designed for portability might be more convenient for mobile use, base station radios are typically larger and meant to stay in one location. Battery-powered options are beneficial for portability and use in situations where AC power is unavailable, but base station radios are usually connected to a stable power source to maintain operation during extended use. Thus, the key feature that stands out for fixed locations is the power of their transmitters, ensuring reliable communication.