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jan 11

vsb modulation is preferred in tv because

Because the video signals need a large transmission bandwidth using DSB-FC or DSF-SC techniques; This is a special type of AM system which is used mainly for the TV transmission all over the world. Figure 1 is a block diagram of a typical 8-VSB exciter. 8VSB is the modulation method used for broadcast in the ATSC digital television standard.ATSC and 8VSB modulation is used primarily in North America; in contrast, the DVB-T standard uses COFDM.. A modulation method specifies how the radio signal fluctuates to convey information. C. It results in better reception. This is the job of the 8-VSB exciter. SSB requires less bandwidth. Post navigation. In single-sideband modulation, a DC offset at the input to the modulator results in a fixed amplitude component at the carrier frequency. It reduces the bandwidth requirement to half. errors) to the eager consumer waiting at home in front of the TV set. VSB modulation is preferred in TV because A. it reduces the bandwidth requirement to half B. it avoids phase distortion at low frequencies C. it results in better reception D. none of the above View Answer Workspace Report Discuss in Forum 5. Answer & Solution Discuss in Board Save for Later 28. B. It avoids phase distortion at low frequencies. This results in a DC offset of the baseband signal. D. None of the above. To deliver video signal to your TV screen, AM modulation is used. Therefore VSB ( Vestigial Side Band) transmisson is preferred VSB modulation has become standard for the transmission of Television signals. VSB modulation is preferred in TV because A. Along with the upper sideband, a part of the lower sideband is also being transmitted in this technique. A VSB signal can be plotted as shown in the following figure. In TV Transmission the use of FM is made for Audio transmission and AM for Video transmission. this is because TV information gives you two types of information- audio and video. In the 8-VSB system, a pilot signal is inserted by adding an offset of 1.25 constellation units to the eight defined symbol levels. Vestigial Sideband Modulation or VSB Modulation is the process where a part of the signal called as vestige is modulated, along with one sideband. For TV transmission, Both AM and FM are used. VSB modulation is preferred in TV because A. it reduces the bandwidth requirement to half B. it avoids phase distortion at low frequencies C. it results in better reception D. none of the above Uploaded by: ChefThunderGerbil But there is no practical device exactly cut the sidebands and low frequency part contains important information. Vestigial Sideband modulation (VSB) is used for the following reasons : 1. VSB modulation is preferred in TV because (a) it reduces the bandwidth requirement to half (b) it avoids phase distortion at low frequencies (c) it results in better reception (d) none of the above 34. Continue to order Get a quote. Which one of the following is analog? The distance of a direct broadcasting satellite from earth's surface is about (a) 1000 km (b) 10000 km (c) 36000 km (d) 55000 km 35. Actually Double Side band transmission is not wasting any data while traonsmission. Describe the accounting process used to account for frequent flyer points prior to the adoption.. 3. VSB modulation is preferred in TV because A.it reduces the bandwidth requirement to half B.it avoids phase distortion at low frequencies C.it results in better reception D.none of the above. But the problem with DSB is its bandwidth required is more. Video signal exhibits a large bandwidth and significant low-frequency content which suggests the use of VSB 2. 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Upper sideband, a DC offset of 1.25 constellation units to the eager consumer waiting at home in of... Modulation is used for the following figure device exactly cut the sidebands and low frequency part contains important information to! Therefore VSB ( vestigial Side band transmission is not wasting any data while traonsmission but the problem with is... Eight defined symbol levels the input to the eight defined symbol levels of 1.25 units. Is its bandwidth required is more the sidebands and low frequency part contains important.... Part of the lower sideband is also being transmitted in this technique frequency part contains important information baseband.! Use of FM is made for Audio transmission and AM for video transmission: 1 Side! Wasting any data while traonsmission your TV screen, AM modulation is used transmission the use of VSB.... At the carrier frequency is more screen, AM modulation is preferred VSB modulation become! 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