THE ADVANTAGE AND DISADVANTAGE OF COMMUNICATION SATELLITE

For this session,I would like to share the advantage and disadvantage of communication satellite.Satellite plays a very important role in telephone communication, television and radio program distribution and other certain communications.This the major field of study and has intensive literature.These communication system are now become an integral part of major area telecommunication networks through the world.The purpose of this post is to discuss various advantage and disadvantage of Satellite Communication and Service provided by Satellite.

ADVANTAGES

1. Point to multipoint communication is possible where as terrestrial relay are point to point.This why satellite relay a wide area broadcast.
2. Circuits for the satellite can be installed rapidly.Once the satellite is in position,Earth Station can be installed and communication may be established within some day or even hours.
3. During critical condition each Earth Station may be removed relatively quickly from a location and re-installed somewhere else.
4. Mobile communication can be easily achieved by satellite communication because of its flexibility in interconnecting mobile vehicles.

DISADVANTAGE

1. The satellite in position the communication path between the terrestrial transmitter and receiver is approximately 75000 km long.
2. There is delay of 1/4 sec between the transmission and reception of a signal because the velocity of electromagnetic wave. 
3. The time delay reduces the efficiency of satellite in data transmission and long file transfer,which carried out over the satellite.
4. Over crowding of available bandwidth due to low antenna gains is occurred.