Which of the following statements about SSB voice transmissions is correct?

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Multiple Choice

Which of the following statements about SSB voice transmissions is correct?

SSB voice transmissions use a single sideband with the carrier suppressed to save spectrum and power. By removing one sideband and most of the carrier, the signal bandwidth is kept narrow—around a few kilohertz—so it fits the HF spectrum more efficiently. The emission designation often used for this in exams describes SSB as a single-sideband with a suppressed carrier, which is why this option is considered correct. The receiver must reinsert a carrier locally (a beat frequency oscillator is used) to make demodulation possible with a product detector, allowing the original audio to be recovered. The other statements describe different modes: one refers to amplitude modulation with the carrier present, which is broader and wastes power; another describes frequency or phase methods that don’t produce single-sideband voice; and another option implies a carrier-suppressing scheme that isn’t the standard description for SSB voice.

SSB voice transmissions use a single sideband with the carrier suppressed to save spectrum and power. By removing one sideband and most of the carrier, the signal bandwidth is kept narrow—around a few kilohertz—so it fits the HF spectrum more efficiently. The emission designation often used for this in exams describes SSB as a single-sideband with a suppressed carrier, which is why this option is considered correct. The receiver must reinsert a carrier locally (a beat frequency oscillator is used) to make demodulation possible with a product detector, allowing the original audio to be recovered.

The other statements describe different modes: one refers to amplitude modulation with the carrier present, which is broader and wastes power; another describes frequency or phase methods that don’t produce single-sideband voice; and another option implies a carrier-suppressing scheme that isn’t the standard description for SSB voice.

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