Principle of communication System Set 1

A cordless telephone using separate frequencies for transmission in base and portable units is known as

For attenuation of high frequencies we should use

A modem is classified as low speed if data rate handled is

VSB modulation is preferred in TV because

A woofer should be fed from the input through a

The colour subcarrier and sidebands produced by its modulation with the chrominance signals are accommodated in the standard channel width by the process of

In colour TV receiver, varactor diode is used for

The number of noise sources in a BJT are

Energy content of atmospheric noise