In long-distance radio transmissions, power is described in which unit?

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Multiple Choice

In long-distance radio transmissions, power is described in which unit?

Power levels for radio transmitters are expressed in watts, the SI unit of power, but for long-distance transmissions these outputs are often in the thousands of watts, so kilowatts are the practical scale to describe them. A kilowatt equals 1000 watts, making it easier to talk about typical base-station or high-power transmitter outputs without writing many zeros. Hertz, on the other hand, is a unit of frequency, not power, so it doesn’t describe transmitter strength. Megawatt denotes an even larger power level than usually needed for standard long-distance systems, and is less common in everyday RF transmission contexts. So kilowatts sit in the convenient, common range for describing long-distance transmitter power.

Power levels for radio transmitters are expressed in watts, the SI unit of power, but for long-distance transmissions these outputs are often in the thousands of watts, so kilowatts are the practical scale to describe them. A kilowatt equals 1000 watts, making it easier to talk about typical base-station or high-power transmitter outputs without writing many zeros. Hertz, on the other hand, is a unit of frequency, not power, so it doesn’t describe transmitter strength. Megawatt denotes an even larger power level than usually needed for standard long-distance systems, and is less common in everyday RF transmission contexts. So kilowatts sit in the convenient, common range for describing long-distance transmitter power.

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