SOLAR SYSTEM

Detailed explanation-1: -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-2: -Answer: 1. The transmission of a signal from the satellite to the second earth station through a channel is called a downlink.

Detailed explanation-3: -Satellites communicate by using radio waves to send signals to the antennas on the Earth. The antennas then capture those signals and process the information coming from those signals.

Detailed explanation-4: -The satellite Transponder converts the signal and sends it down to the second earth station. This is called a Downlink.

Detailed explanation-5: -The most used frequencies for geostationary satellites are 6 / 4 GHz, 14 / 12 GHz, 30 / 20 GHz.

Detailed explanation-6: -The satellite transponder converts this signal into another frequency and sends it down to the second earth station. This frequency is called as Downlink frequency. In similar way, second earth station can also communicate with the first one. The process of satellite communication begins at an earth station.

Detailed explanation-7: -In satellite telecommunication, a downlink is the link from a satellite down to one or more ground stations or receivers, and an uplink is the link from a ground station up to a satellite.