Why is no carrier signal transmitted when the amplitude of the modulating signal is 0 in an SSB transmission?

Attenuation

Undermodulation

No sideband is generated

All the sideband is suppressed

Correct Answer : No sideband is generated

Explanation : In an SSB the carrier signal is suppressed. Also, only when a modulating signal is present the sideband is produced. When there is no modulating signal there is no sideband produced and the carrier is also suppressed hence nothing is transmitted.

Recently Updated in Avionics Questions

Which of the following is true with respect to the bandwidth of a 2kHz audio signal and a 2kHz binary data?

Bandwidth is higher for binary data than audio signals

Bandwidth is higher for audio signals than binary data

Bandwidth remains the same for both

Bandwidth keeps increasing with time for the binary data

Correct Answer : Option (A) : Bandwidth is higher for binary data than audio signals

Explanation : Since binary data is transmitted in square waves or pulses, they are generally made up of numerous fundamental sine waves. This occupies a huge bandwidth as compared to audio signals which are analog in nature and usually comprise of a lesser number of sine waves.