SOLAR SYSTEM

Detailed explanation-1: -This helps in avoiding interference between its powerful transmitted signal and the weak incoming signal. The satellite transponder converts this signal into another frequency and sends it down to the second earth station. This frequency is called Downlink frequency.

Detailed explanation-2: -Satellite links are used to provide communications over very large distances (global coverage). This is achieved by using the satellite as a repeater. A ground station relays a signal up to the satellite at a frequency known as the uplink frequency.

Detailed explanation-3: -The most used frequencies for geostationary satellites are 6 / 4 GHz, 14 / 12 GHz, 30 / 20 GHz.

Detailed explanation-4: -The subsystem, which provides the connecting link between transmitting and receiving antennas of a satellite is known as Transponder. It is one of the most important subsystem of space segment subsystems. Transponder performs the functions of both transmitter and receiver (Responder) in a satellite.

Detailed explanation-5: -Satellites communicate by using radio waves to send signals to the antennas on the Earth.

Detailed explanation-6: -Overview. Adjacent Satellite Interference (ASI) is a phenomenon that occurs when two or more satellite signals are received by a ground terminal (downlink ASI or dASI) or when two or more ground terminal signals are received by satellite (uplink ASI or uASI).