Satellite vsat communication is split up in to four radio frequency rf bands that commercial communication and military satellites operate within.
Satellite communication system frequency.
For real time communications the shorter the transmission delay the better will be the communication system.
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.
Global positioning system gps carriers and also satellite mobile phones such as iridium.
Inmarsat providing communications at sea land and air.
A satellite has to withstand the shock of being accelerated during launch up to the.
These different frequency bands have separate uplink tx and downlink rx frequencies require different rf components lnb and buc and are suited to different applications.
Difficult to provide repairing activities if any problem occurs in a satellite system.
Applications of satellite communication.
There can be congestion of frequencies.
A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder.
There are about 2 000 communications satellites.
Propagation delay of satellite systems is more than that of conventional terrestrial systems.
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.
S band 2 4 ghz weather radar surface ship radar and some communications satellites especially those of nasa for communication with iss and space shuttle.
Free space loss is more.