Features Of Satellite Communication System

Satellite is powerful long distance and point to multipoint communication system.

Features of satellite communication system.

Satellite communications can provide communication capabilities spanning long distances and can operate under circumstances or. Satellite communications is the use of satellite technology in the field of communications. Even the internet would help them to keep in touch. The services provided by satellite communications are voice and video calling internet fax television and radio channels.

Learn more about satellite communication in this article. How would an individual putting up at a remote place where the mobile technologies fail to operate communicate with his friend or relative. The focus has been on desaster recovery redundancy of terrestrial networks econonical large scale tv distribution and connectivity with rural area s where the deployme. There are about 2 000 communications satellites.

A satellite is basically a self contained communications system with the ability to receive signals from earth and to retransmit those signals back with the use of a transponder an integrated receiver and transmitter of radio signals. A communications satellite is in a geostationary equatorial orbit with a period of 24 h. In meo systems the slow moving satellites orbit at a height of about 5 000 to 12 000 km above the earth and have a latency of about 70to 80 ms. Satellite communications play a vital role in the global telecommunications system.

It creates a communication channel between a source transmitter and a receiver at different locations on earth communications satellites are used for television telephone radio internet and military applications. The spin rate ω s about its axis of symmetry is 1 rpm and the moment of inertia about the spin axis is 550 kg m 2 the moment of inertia about transverse axes through the mass center g is 225 kg m 2 if the spin axis is initially pointed toward the earth calculate the magnitude and direction of. Several satellites are needed to ensure global coverage. Satellite communication the use of artificial satellites to provide communication links between various points on earth.

To overcome disadvantage of line of sight communication which is only 45 55 km the transmitting antenna is placed on the satellite and the satellite is placed in the orbit high above the earth. For real time communications the shorter the transmission delay the better will be the communication system. A satellite has to withstand the shock of being accelerated during launch up to the. A communication satellite is an r f radio frequency repeater.

As an example if a geo satellite requires 0 25 seconds for a round trip then meo satellite requires less than 0 1 seconds to complete the same trip. Voice tv distribution datacomms navigation and observation. One can interact with a friend settled at a far off place with the help of a mobile or a fixed line. A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder.