Howtosignalprocessing
In addition, the occupied spectrum is less than half that of a full carrier AM signal. SSB reception requires frequency stability and selectivity well beyond that of inexpensive AM receivers which is why broadcasters have seldom used it.
- What is the main disadvantage of SSB?
- Why is DSB SC not used for broadcasting?
- Why SSB suitable for speech signals and not for video signals?
- Why we prefer SSB instead of DSB in AM?
What is the main disadvantage of SSB?
The benefit of using SSB modulation is therefore derived principally from the reduced bandwidth requirement and the elimination of the high-power carrier wave. The principal disadvantage of the SSB modulation system is its cost and complexity.
Why is DSB SC not used for broadcasting?
Disadvantages of DSBSC
The disadvantages of DSB are as follows: The efficiency of DSB with the carrier is low due to the presence of the carrier. The power wastage is high in DSB compared to other types of Amplitude Modulation because of the two sidebands that are not effectively utilized.
Why SSB suitable for speech signals and not for video signals?
The bandwidth requirement for the transmission of video signals is very large. SSBSC has low bandwidth. The complexity of the transmitters, receiver, and the low bandwidth of SSB does not make it suitable for video transmission. Hence, SSB is commonly preferred for the transmission of only audio signals.
Why we prefer SSB instead of DSB in AM?
Advantages of SSB over full carrier DSB wave
Since SSB system utilizes half the bandwidth than DSB, the thermal noise power is reduced to half that of DSB system. The full carrier DSB wave has poor efficiency since the major transmitted power is concentrated in the carrier which contains no information.
