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NIELIT 2021 Dec Scientist B - Section B: 86

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The bit rate of digital communication system is $\text{R kbit/s}.$ The modulation used is $32 – \text{QAM}.$ The minimum bandwidth required for $\text{ISI}$ free transmission is $:$

  1. $\text{R}/10 \; \text{Hz}$
  2. $\text{R}/10 \; \text{kHz}$
  3. $\text{R}/5 \; \text{Hz}$
  4. $\text{R}/5 \; \text{kHz}$
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