UNIVERSE
SATELLITESICY BODIES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Uplink
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Downlink
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Terrestrial
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Earthbound
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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: -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.
Detailed explanation-3: -The satellite Transponder converts the signal and sends it down to the second earth station. This is called a Downlink.
Detailed explanation-4: -In satellite communication, the uplink frequency is higher than the downlink frequency because the attenuation level increase with an increase in frequency. The power at the ground station (Base Station) is more than compared to the power available at the satellite.
Detailed explanation-5: -The most used frequencies for geostationary satellites are 6 / 4 GHz, 14 / 12 GHz, 30 / 20 GHz.