Which radios are smaller and less powerful than fixed and mobile radios, and are powered by a rechargeable battery with buttons and knobs for switching channels and adjusting volume?

Which radios are smaller and less powerful than fixed and mobile radios, and are powered by a rechargeable battery with buttons and knobs for switching channels and adjusting volume?

• A. Mobile radios
• B. Portable radios
• C. Fixed radios
• D. Base radios

Answer: (B)

Portable handheld radios are the smaller, battery-powered members of a radio system. They’re designed for hand-held use and run on a rechargeable battery pack, unlike fixed or mobile units that draw power from a wall outlet or a vehicle’s electrical system. Their controls are straightforward—usually a channel selector and a volume knob, plus the push-to-talk button on the side—so you can switch channels and adjust volume on the fly. Because they rely on limited power and compact antennas, their transmit range is shorter than that of larger fixed or mobile radios. This combination—compact size, battery power, and knobs for channel and volume control—fits the description of portable radios.

Portable handheld radios are the smaller, battery-powered members of a radio system. They’re designed for hand-held use and run on a rechargeable battery pack, unlike fixed or mobile units that draw power from a wall outlet or a vehicle’s electrical system. Their controls are straightforward—usually a channel selector and a volume knob, plus the push-to-talk button on the side—so you can switch channels and adjust volume on the fly. Because they rely on limited power and compact antennas, their transmit range is shorter than that of larger fixed or mobile radios. This combination—compact size, battery power, and knobs for channel and volume control—fits the description of portable radios.