Q. The diameter and thickness of CD are

View solution

Q. If e = 10 sin(10⁸ t + 3 sin 10⁴ t) then carrier frequency is

View solution

Q. Thermal noise is independent of

View solution

Q. The decorative lighting works on the principle of

View solution

Q. In an oscillator crystal, the parallel resonant frequency is

View solution

Q. The maximum range of a radar is proportional to

View solution

Q. Which of the following statement regarding the advantages of the phase discriminator over the slope detector is false?

View solution

Q. The highest modulating frequency typically used in AM systems is

View solution

Q. The line of sight communication requires the transmit and receive antennas to face each other. If the transmit antenna is vertically polarized, for best reception to the receive antenna should be

View solution

Q. The bandwidth of FM for Commercial Purpose is

View solution

Q. In home tape recorders the tape width is 2 inches.

View solution

Q. In MF range, increasing the transmitter power

View solution

Q. The most frequent users of long distance VLF transmission is

View solution

Q. BFO stands for

View solution

Q. SSB-SC stands for

View solution

Q. A lens has a hyperfocal distance of 7.5 m. It is focused at 7.5 m. Then

View solution

Q. In FM 'guard band' is provided

View solution

Q. Assertion (A): FM requires more bandwidth than AM

Reason (R): Wide band FM is used for broadcast transmissions.

View solution

Q. A frequency doubler has an FM signal input at 13 MHz with a deviation of 5 kHz. The output, frequency for the carrier will be

View solution

Q. In FSK no synchronous carrier is needed at the receiver

View solution