KERALA UNIVERSITY Class 4 analog communication Question Paper 2019

Practice authentic previous year questions for better exam preparation.

Sample Questions

Discuss the working of public telephone network with block diagram. $$ \text { ( } 6 \times 10=60 \text { Marks) } $$
A message signal $m(t)$ with spectrum shown in Fig 1 is applied to a product modulator with a carrier wave $A_{c} \cos \left(2 \pi f_{c} t\right)$ producing the DSBSC modulated wave $\mathrm{s}(\mathrm{t})$. This modulated wave is next applied to a c...
A message signal $m(t)$ with spectrum shown in Fig 1 is applied to a product modulator with a carrier wave $A_{c} \cos \left(2 \pi f_{c} t\right)$ producing the DSBSC modulated wave $\mathrm{s}(\mathrm{t})$. This modulated wave is next applied to a c...
A message signal $m(t)$ with spectrum shown in Fig 1 is applied to a product modulator with a carrier wave $A_{c} \cos \left(2 \pi f_{c} t\right)$ producing the DSBSC modulated wave $\mathrm{s}(\mathrm{t})$. This modulated wave is next applied to a c...
The total antenna current of an $A M$ transmitter is $5 A$. If the modulation index is 0.6 , calculate the antenna current when only the carrier is sent.