Q. The first geostationary satellite was named

View solution

Q. Typical value of power consumption of TV transmitter is

View solution

Q. In a colour TV receiver, which of the following incorporates colour saturation control?

View solution

Q. Which of the following statement is correct?

View solution

Q. Which of the following is true as regards telephone systems?

View solution

Q. SSB can be generated by

View solution

Q. Which one of the following cannot be used to remove the unwanted sideband in SSB?

View solution

Q. For FM, which of the following statement is not true?

View solution

Q. The orbital period of a geostationary communication satellite is

View solution

Q. Which of the following is not true as regards communication receiver?

View solution

Q. Which of the following is the disadvantage of PDM and PPM?

View solution

Q. Frequency frogging is used in a carrier system to

View solution

Q. TDM

View solution

Q. In a pulsed RADAR, the transmitter is connected to the antenna

View solution

Q. In a CD, the depth and width of each pit is

View solution

Q. Which type of modulator amplifier is used in AM transmitter?

View solution

Q. A digital watch contains

View solution

Q. A monostable multivibrator is used to generate PWM because it can

View solution

Q. Consider the following statements in amplitude modulation

1. The harmonic and intermodulation distortion may occur in audio and RF amplifiers
2. The sum and difference frequencies are present in the output of mixer
3. The diode detector has audio frequencies in its output
4. A balanced modulator cannot produce an AM with suppressed carrier

Which of the above are true?

View solution

Q. A resistor R is in parallel with capacitance C. The rms noise voltage of resistor in the equivalent circuit can be written as

View solution