11. The following cannot be used to remove the unwanted sideband in the SSB:
12. Heterodyne principle is used in
13. What is the modulation index of an FM signal having a carrier swing of 100 kHz and modulating frequency of 8 kHz?
14. An AM signal has a total power of 48 Watts with 45% modulation. The power in the carrier and the sidebands are
15. The RF amplifier A is having 3 dB NF & 5 dB of gain, amplifier B is having 3.5 dB NF & 15 dB. For overall noise figure of the cascaded system, the correct statement is:
16. For a symmetrical distribution the coefficient of skewness is
17. A carrier of 10 kW is amplitude modulated to a depth of 100% by a sinusoid. Then the power of the transmitted AM wave is
18. Select correct answer-
A 400 W carrier is modulated to a depth of 75%. Calculate the total power in the modulated wave.
A 400 W carrier is modulated to a depth of 75%. Calculate the total power in the modulated wave.
19. The figure shows the block diagram of a frequency discriminator. What does the second block represent?
20. Percentage modulation of an AM wave having a power content of 8 kW at carrier frequency and 2 kW in each of its side bands is
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