What is a primary application of VSB (Vestigial Sideband) modulation?

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RRB JE ECE 22 Apr 2025 Shift 2 CBT 2 Official Paper
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  1. Telephonic communication
  2. Television signal transmission
  3. FM radio broadcasting
  4. Satellite communication

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Option 2 : Television signal transmission
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<p><span><u>Concept:</u></span></p><p>VSB (vestigial sideband) transmission transmits one sideband fully and the other sideband partially thus, reducing the bandwidth requirement.</p><p>Vestigial Sideband Modulation (VSB) is used for video modulation in TV transmission due to the following reasons:</p><ul> <li>Video signal exhibits a large bandwidth and significant low-frequency content which suggests the use of VSB.  </li> <li>VSB (vestigial sideband) transmission transmits one sideband fully and the other sideband partially thus, reducing the bandwidth requirement.</li> <li>The circuitry for demodulation in the receiver should be simple and therefore cheap. VSB demodulation uses simple envelope detection.</li> </ul><p> </p><p>The spectrum of a vestigial sideband is as shown:</p><p><amp-img alt="JULY 2018 PART 4.docx 26" src="/" height="141" width="241"></amp-img></p> - www.guacandrollcantina.com
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