Embibe Experts Solutions for Chapter: Communication Systems, Exercise 1: KEAM 2020

The maximum line-of-sight distance undefined between the transmitting antenna of height undefined and receiving antenna of height undefined in undefined communication is undefined radius of the earth)

A TV transmitting antenna is $81 \mathrm{m}$ tall. It has half-power, beam-width of $10$ degrees, If the receiving antenna is at the ground level, the service area covered by the transmitter is determined by

In amplitude modulation of audio frequency $700\mathrm{Hz}$, the appropriate carrier frequency to be used is

For signal transmission, modulation is necessary

In the amplitude modulation mode of transmission, the normal speed signal is with a maximum frequency of $5 \mathrm{kHz}.$ If the carrier frequency is $200 \mathrm{kHz},$ the modulated signal will have the frequencies varying between