एक ज्यावक्रीय आवृत्ति वाले मॉडुलित वाहक द्वारा अधिकृत बैंडविड्थ ज्ञात कीजिए जिसके लिए मॉडुलन सूचकांक 2.4 है।

This question was previously asked in
ESE Electronics 2013 Paper 2: Official Paper
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  1. 4.8 fm
  2. 6.8 fm
  3. 2.4 fm
  4. 3.8 fm

Answer (Detailed Solution Below)

Option 2 : 6.8 fm
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Detailed Solution

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संकल्पना:

कार्सन नियम सिग्नल के अनुसार BW को निम्न रूप में ज्ञात किया गया है:

B.W = (β + 1) 2fm

\(\becauseβ=\frac{Δf}{f_m} \)

B.W. = 2[Δf + fm]          

यदि कई आवृत्ति मॉडुलित सिग्नल में उपलब्ध हैं, तो,

B.W. = 2(β + 1) fmax 

गणना:

दिया गया है: β = 2.4

B.W = (β + 1) 2fm

B.W. = 2fm (2.4 + 1)

BW = 6.8fm

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