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प्रश्न
Which basic mode of communication is used in satellite communication?
उत्तर
There are two basic modes of communication: point-to-point and broadcast.
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संबंधित प्रश्न
Draw a neat, labelled block diagram for a generalised communication system.
Name the essential components of a communication system.
Write two basic modes of communication
Any device that converts one form of energy into another is termed as ______.
(A) amplifier
(B) transducer
(C) receiver
(D) demodulator
Explain the terms : Receiver in communication system
Write the functions of each of the following in communication system : Channel
What is the line of sight communication?
Explain the basic concept of mobile telephoning.
Name the type of waves which are used for line of sight (LOS) communication. What is the range of their frequencies?
A transmitting antenna at the tope of a tower has a height of 20 m and the height of the receiving antenna is 45 m. Calculate the maximum distance between them for satisfactory communication in LOS mode. (Radius of the Earth = 6.4 × 106 m)
A transmitting antenna of height h and the receiving antenna of height 45 m are separated by a distance of 40 km for satisfactory communication in line of sight mode. Then the value of h is (given radius of the earth is 6400 km):
