Generate KERALA UNIVERSITY Class 4 analog communication Question Paper
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Sample Questions
- An audio frequency signal $10 \sin 2 \pi^{\star} 500 t$ is used to amplitude modulate a carrier of $50 \sin 2 \pi * 10^{5} t$. Assume modulation index $=0.2$. Find (a) Sideband frequencies. (b) Amplit...
- 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.
- Draw time domain and frequency domain representations of a DSBSC wave.
- Explain the significance of image frequency.
- Calculate the carrier frequency and modulation index for an FM signal which reaches a maximum frequency of 99.047 MHz and a minimum frequency of 99.023 MHz . The frequency of the modulating signal is ...