Communication S...

Electronic communication refers to

FM Radio set used in cars is

For a signal to be reproduced without distortion

A woofer should be fed from the input through a

AM detection is

The three elements of a generalized communication system are

TV set used in a typical house is

Audio signals have a maximum bandwidth of about

Pulse is specified by pulse height or the peak voltage, the pulse duration and pulse to pulse spacing. In pulse amplitude modulation (PAM) what changes with base band signal is

A rectifier and an envelope detector for AM uses

Electronic communication is not possible if

For attenuation of high frequencies we should use

Coaxial cables have a bandwidth in the range of

To reduce the distortion in amplitude modulation, modulation index is kept

Frequencies in the UHF range normally propagate by means of:

Which of these is an example of point to point communication?

Amplification is the

Transmission bandwidth of fiber optic communication can be up to

One method of producing an amplitude modulation is to add the carrier and modulating signal and then

A carrier wave of peak voltage 12V is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of 75%?

Which of these is an example of broadcast communication?

Range of an electronic communication system

In ground wave propagation the earth

Before transmission the AM produced by a square law device

Multiplexing is a scheme for transmitting multiple signals at the same time e.g. speeches of ten persons in different rooms on the same channel. How many transmitters will be required in any multiplexing scheme?

Transducer is a device that

Bandwidth of an electronic communication system

Ground wave propagation is used for

The range of an AM broadcast depends

In Amplitude modulation if one of the two side bands is removed by a filter is it possible to recover the modulating signal?