What is difference between uplink and downlink?

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. Some companies sell uplink and downlink services to television stations, corporations, and to other telecommunication carriers.

Why are uplink and downlink frequencies not the same in satellite Mcq?

The downlink frequency is lower than the uplink frequency. Explanation: The original signal being transmitted from the earth station to the satellite is called the uplink, and the re-transmitted signal from the satellite to the receiving stations is called the downlink.

Can 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].

How does uplink and downlink interference prevent?

Larger guard period normally required if distances are increased to accommodate larger propagation delays. Note that a guard band in frequency domain is required to suppress interference to adjacent bands. Frequency separation is required to provide sufficient isolation between uplink and downlink.

Why are different frequencies used for uplink and downlink in satellite communication?

Normally uplink is higher frequency than downlink. It is easier, provides better amplification performance and better isolation. This is why satellites transmit and receive at different frequencies. Originally Answered: Why are different frequencies used for uplink and downlink in satellite communication?

What is the difference between uplink and downlink?

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….downlink and uplink. Why frequency band for uplink and downlink is different in transmission of microwaves through space?

What is an uplink dish?

The uplink dish is pointed toward a particular satellite and the uplinked signals are transmitted within a specific frequency range, so as to be received by one of the transponders tuned to that frequency range aboard that satellite.

What is downlink direction in wireless communication?

The frequency used for all the transmissions from Base Station to the Mobile Subscriber Unit (MS) is known as The direction from BS to MSs is called downlink direction. FDMA (Frequency Division Multiple Access) and TDMA (Time Division Multiple Access) in order to use the bandwidth effectively in wireless systems.

https://www.youtube.com/watch?v=4zKaiHwDz1k