The process of superimposing a signal frequency (i.e.,audio wave) on a carrier wave is known as:

Consider telecommunication using optical fibers. Which of the following statements is $NOT$ true?

The maximum amplitude of an amplitude modulated wave is $16 \,V$, while the minimum amplitude is $4 \,V$. The modulation index is

In radio broadcasting,the transmission of sound waves is of the type.............

For a television network,$5 \times 10^5$ channels are granted. If the central frequency of the microwave link is $25 \text{ GHz}$ and the allotted bandwidth for each channel is $2 \text{ kHz}$,then what percentage of the link is used for the network (in $\%$)?

Radio waves of constant amplitude are produced by a/an . . . . . . .