SOLAR SYSTEM

Detailed explanation-1: -The earth segment of satellite communication system mainly consists of two earth stations. Those are transmitting earth station and receiving earth station. The transmitting earth station transmits the information signals to satellite.

Detailed explanation-2: -Earth stations consist of a reflector antenna (or parabolic dish), a feed system to send and receive the RF carrier, data handling equipment and mechanical tracking equipment to keep the satellite within the antenna’s data send/receive area.

Detailed explanation-3: -Earth segment is also called as ground segment. Earth segment performs mainly two functions. Those are transmission of a signal to the satellite and reception of signal from the satellite.

Detailed explanation-4: -The transmission of signal from first earth station to satellite through a channel is called as uplink. Similarly, the transmission of signal from satellite to second earth station through a channel is called as downlink.

Detailed explanation-5: -Transmission from an earth-based station to a satellite is an uplink. Transmission from a satellite to an earth-based station is a downlink.

Detailed explanation-6: -Satellite receivers on the ground include direct-to-home (DTH) satellite equipment, mobile reception equipment in aircraft, satellite telephones, and handheld devices.

Detailed explanation-7: -Earth stations are a vital element in any satellite communication network. The function of an earth station is to receive information from, or transmit information to, the satellite network in the most cost-effective and reliable manner while retaining the desired signal quality.