Q. The FM broadcast band is from

View solution

Q. If k is Boltzmann's constant, T₀ is standard ambient temperature, δf is bandwidth of receiver, F is noise figure, the minimum receivable signal in a radar receiver is given by

View solution

Q. The purpose of source coding is to

View solution

Q. If a source of information generates messages at the rate of r messages per second and H is entropy, the information rate is

View solution

Q. Consider the following statements about advantages of phase discriminator over slope detector

1. Fewer tuned circuits
2. Greater limiting
3. Better linearity
4. Easy alignment

Which of the above are true?

View solution

Q. In a superheterodyne radio receiver

View solution

Q. The assigned carrier frequency of an FM broadcast station is 96.3 MHz. Its FM signal has a centre frequency of

View solution

Q. Digital television is also called

View solution

Q. The number of spectral component of a cosine wave is

View solution

Q. At FM demodulator output noise power density

View solution

Q. According to CCIR standards, the Vestigial Sideband (VSB)

View solution

Q. Line of sight transmission is used in

View solution

Q. A typical value of insertion loss of SAW filter is

View solution

Q. In phase modulation, the phase deviation is

View solution

Q. The noise generated by a resistor depends upon

View solution

Q. A source has two symbols x1 and x2 with probabilities pi and pr. If a new source with four symbols is generated from the above source, the new symbol probabilities will be (∈ is a number such that 0 < ∈ < 1)

View solution

Q. Coupling and bypass filters can be a source of

View solution

Q. Assertion (A): SSB transmitter is generally smaller than AM transmitter

Reason (R): SSB systems mostly use combined transmitter receiver.

View solution

Q. The VLF, LF and MF antennas are

View solution

Q. The HV and other voltage supplies for a TV receiver are obtained from IHVT. The full name for this device is

View solution