Q. At FM demodulator output noise power density

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

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Q. Line of sight transmission is used in

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

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Q. In phase modulation, the phase deviation is

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Q. The noise generated by a resistor depends upon

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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)

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Q. Coupling and bypass filters can be a source of

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

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

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Q. The VLF, LF and MF antennas are

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

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Q. The main systems used for generation of SSB are

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Q. An antenna operates effectively when its dimensions are

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Q. The mobile unit of a mobile telephone is generally in

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Q. Assertion (A): Water waves are longitudinal but EM waves are transverse

Reason (R): In an EM wave electric field, magnetic field and propagation are mutually perpendicular.

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Q. Some multiplexing arrangements for telephone system are

1. Space multiplexing
2. Time division multiplexing
3. Frequency division multiplexing

Which of the above allow transmission of many independent signals over a single channel?

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Q. Industrial noise has the frequency range of

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Q. Thermal noise Power is

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Q. The characteristic impedance of coaxial cable is about

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Q. The diameter and thickness of CD are

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