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A long wave AM broadcast transmitter needs _________

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A long wave AM broadcast transmitter needs _________

(a) very small carrier power

(b) very large carrier power

(c) small carrier power

(d) large carrier power

I got this question during an internship interview.

I'm obligated to ask this question of Frequency Domain Representation topic in chapter Double Sideband Suppressed Carrier Modulation of Analog Communications

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Correct choice is (b) very large carrier power

To elaborate: In Communication Systems, a transmitter produces radio waves, which are the modulated message signals, and are transmitted via the antennae. These message signals carry information which are modulated using a carrier wave, having frequency higher than the message signal frequency. Thus, for transmitting information to a large distance, it is necessary that a very large carrier wave is used for modulation.

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