It’s because lower frequencies get reflected by atmospheric bands and cannot penetrate to get through to the satellite . … Therefore, mobile-to-base station (uplink) frequencies are lower than base station-to-mobile(downlink) frequencies.
Read moreCan the same frequency be used for uplink and downlink communication?
The uplink and downlink transmitters use separate frequency bands for transmissions ; therefore, both downlink and uplink transmitters can transmit at all times and at the same time [3].
Read moreWhy is it that the uplink is always higher in frequency than the downlink?
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.
Read moreWhy must a satellite have distinct uplink and downlink frequencies?
In order to avoid interference , the satellite must have distinct uplink and downlink frequencies. The satellite receives the signal on one frequency and it transmits on another frequency, the reason is to avoid the interference of signals. … To obtain clear transmission, the frequency must be distinct between them.
Read moreWhat are uplink and downlink of satellite circuits?
The communication going from a satellite to ground is called downlink, and when it is going from ground to a satellite it is called uplink . When an uplink is being received by the spacecraft at the same time a downlink is being received by Earth, the communication is called two-way.
Read moreWhat is the difference between uplink and downlink frequencies?
The uplink frequency is the frequency which is used for transmission of signals from earth station transmitter to the satellite. The downlink frequency is the frequency which is used for transmission of signals from the satellite to the earth station receiver.
Read moreWhat is uplink and downlink design?
We know the basics of satellite communication that signals from the ground station present on the surface of the earth is transmitted towards the satellite. … So, uplink denotes the transmission of radio waves from an earth station to satellite and downlink corresponds to the transmission from satellite to earth station.
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