Write the factors that prevent a baseband signal of low frequency to be transmitted over long distances

CBSE Class 12 CBSE Class 12 Physics
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1

(i) Write the factors that prevent a baseband signal of low frequency to be transmitted over long distances.
(ii) What is to be done to overcome these factors ? Draw a block diagram to obtain the desired signal

2

(i) Size of the antenna
Effective power radiated by the antenna Mixing up of signals from different transmitters (ii) Modulation
Block diagram of amplitude modulation

Block diagram of amplitude modulation.png803×170 11.2 KB