Table of Contents
- 1 What are the types of DSB-SC modulators?
- 2 How the ring modulator for generation of DSB-SC wave acts as a demodulator?
- 3 What are the advantages of DSB-SC modulator?
- 4 What show uses the ring modulator?
- 5 What are advantages of ring modulator?
- 6 What is the function of the modulator?
- 7 What is a DSB-SC wave?
- 8 What is the difference between DSB-SC and a normal system?
What are the types of DSB-SC modulators?
The following two modulators generate DSBSC wave.
- Balanced modulator.
- Ring modulator.
How the ring modulator for generation of DSB-SC wave acts as a demodulator?
Explanation: Ring modulator is a product modulator used for DSB SC generation. It consists of four diodes connected in the form of ring. In AM , the ring modulator acts as a product modulator for a square wave carrier and modulating signal and generated a Double Side Band-Suppressed Carrier signal.
What is used to generate a DSB signal *?
What is used to generate a DSB signal? Explanation: Balanced modulator is a special circuit which produces DSB or Double sideband suppressed carrier signals.
Why do we use balanced modulator?
The balanced modulators are used to suppress the unwanted carrier in an AM wave. The carrier and modulating signals are applied to the inputs of the balanced modulator and we get the DSB signal with suppressed carrier at the output of the balanced modulator.
What are the advantages of DSB-SC modulator?
Advantages of DSB-SC modulation It provides 100\% modulation efficiency. Due to suppression of carrier, it consumes less power. It provides a larger bandwidth.
What show uses the ring modulator?
Doctor Who
One of the best-known applications of the ring modulator may be its use by Brian Hodgson of the BBC Radiophonic Workshop to produce the distinctive voice of the Daleks in the television series Doctor Who, starting in 1963.
Which method is used for generation of SSB SC Mcq?
Single Sideband Suppressed Carrier(SSB-SC) Modulation MCQ Question 1 Detailed Solution
| Parameter | SSB | VSB |
|---|---|---|
| Power | Less | Medium |
| Bandwidth | fm | fm< BW< 2fm |
| Carrier Suppression | Complete | No |
| Sideband Suppression | One sideband completely | One sideband suppressed partially. |
Which type of amplifIer is used in collector modulator?
The modulating signal is applied to the collector of the transistor and hence this circuit is called collector modulator It has RF amplifIer in class C mode, in which the amplifier conducts only for a portion of positive half cycle of input signal.
What are advantages of ring modulator?
A particular elegance of the ring modulator is that it is bidirectional: the signal flow can be reversed allowing the same circuit with the same carrier to be used either as a modulator or demodulator, for example in low-cost radio transceivers.
What is the function of the modulator?
A modulator is an electronic circuit that superimposes a low-frequency (information) signal onto a high-frequency (carrier) signal for the purpose of wireless transmission.
What is the balanced modulator?
A balanced modulator mixes the audio signal and the radio frequency carrier, but suppresses the carrier, leaving only the sidebands. The output from the balanced modulator is a double sideband suppressed carrier signal and it contains all the information that the AM signal has, but without the carrier.
What are the applications of DSB-SC modulation?
Applications of DSB-SC modulation 1 During the transmission of binary data, DSB-SC system is used in phase shift keying methods. 2 In order to transmit 2 channel stereo signals, DSB signals are used in Television and FM broadcasting. More
What is a DSB-SC wave?
Thus, at the output, the DSB-SC wave contains a signal whose frequency is twice the frequency of the baseband signal. The carrier without any information content is suppressed by a balanced modulator.
What is the difference between DSB-SC and a normal system?
A normal system also termed as Double Sideband Full Carrier (DSB-FC) system, transmits carrier along with the two sidebands. Hence, resulting in a considerable power loss. So, DSB-SC system is used in order to overcome the drawback of DSB-FC system.
What is DSB-SC transmission scheme?
Definition: DSB-SC is an amplitude modulated wave transmission scheme in which only sidebands are transmitted and the carrier is not transmitted as it gets suppressed. DSB-SC is an acronym for Double Sideband Suppressed Carrier. The carrier does not contain any information and its transmission results in loss of power.