“Can anything which is man made can be up high like the celestial bodies?", "Can we take photos of the earth being in earth itself?" .Yes, this is possible with the Satellites systems which are the heart of Satellite Communications. Satellite is the natural or artificial body which revolves around the Planets. The Artificial satellites offer number of features regarding space which cannot be offered by other means of communications. Satellites are used for Remote Sensing and some of the services provided by them are Fixed Satellite services for linking telephone networks, Meteorological Satellite service for weather forecasting, search and rescue purposes, and Direct Broadcasting Satellite services for Direct-to-home Services. Each Satellite is allocated with fixed frequency bands by ITU (International Telecommunication Union) for both Uplink and Downlink transmission of signals. The uplink and downlink frequency are usually kept different in order to avoid interferences between the two signals. Some of the most commonly used frequency bands are C band (4-8GHz), X band (8-12GHz) and Ku Band (12-18GHz). The Frequency Planning is done for the Satellites by splitting World into Three regions with Region-1 including Africa, Mongolia, Europe; Region-2 includes North and South America, Greenland; Region-3 which includes part of Asia, Australia and South West pacific. There are three ways by which the Satellites can be launched into space. They are LEO (Low Earth Orbit) which is below 2000km from Earth surface, MEO (Medium Earth Orbit) between 2000km to 36000km from Earth surface and HEO (High Earth Orbit) which is above geostationary orbit (36000km) from the Earth surface.