Q. In EM waves, polarization

View solution

Q. The maximum power output of a standard A earth station over the total band allocated to satellite communication is about

View solution

Q. PAM stands for

View solution

Q. Which of the following is an indirect way of generating FM?

View solution

Q. When the length of antenna is a whole wavelength

View solution

Q. Circular polarization

View solution

Q. An FM radio receiver which is tuned to a 91.6 MHz broadcast station may receive an image frequency of __________ MHz.

View solution

Q. If S represents the carrier synchronization at the receiver and ρ represents the bandwidth efficiency, then the correct statement for the coherent binary PSK is

View solution

Q. For telegraphy the most commonly used modulation system is

View solution

Q. Commercial Frequency deviation of FM is

View solution

Q. The colour of an object is decided by

View solution

Q. In Pulse Code Modulation system

View solution

Q. Human ear can detect sound intensities of the order of

View solution

Q. If output power of a radio receiver is doubled, its volume is increased by __________ dB.

View solution

Q. Which of the following statements is correct?

View solution

Q. To eliminate ghosts in the picture

View solution

Q. The frequency range of 300 kHz to 3000 kHz is known as

View solution

Q. Which of the following does not cause losses in optical fibre cables?

View solution

Q. For a low level AM system, the amplifiers modulated stage must be

View solution

Q. Assertion (A): In FM the frequency of the carrier is varied by the modulating voltage

Reason (R): FM and PM are two forms of angle modulation.

View solution