Uplink And Downlink Frequency Range In Satellite Communication

6ghz band frequency is used for uplink and 4ghz frequency band is used for downlink in c band satellite communication operation.

Uplink and downlink frequency range in satellite communication.

The uplink is from your user equipment ue cell phone hotspot or other device to the base station. However due to the lower frequency range it performs better under adverse weather conditions on the ground. Ka band 26 40 ghz communications satellites. Carrier processor performs the frequency down conversion of received signal uplink.

Low noise amplifier lna amplifies the weak received signal. In satellite communication the signals have to cross the atmosphere which presents a great deal of attenuation. The higher the frequency the more is the signal loss and more power is needed for reliable transmission. There are two main ways to duplex these two signals plus a third under development.

C band satellite will usually will have 5 925 to 6 425 ghz frequency range in the uplink and 3 7 to 4 2 ghz frequency range in the downlink. High frequency means higher attenuation. It receives uplink signal from the satellite antenna and transmits downlink signal to the satellite antenna. In similar way second earth station can also communicate with the first one.

The c band is primarily used for voice and data communications as well as backhauling. The satellite transponder converts this signal into another frequency and sends it down to the second earth station. This block determines the type of transponder. In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra.

Ku band satellite will have 14 to 14 5 ghz range in the uplink and 11 7 to 12 2 ghz frequency range in the downlink. The lower frequency x band between 7 25 and 7 75 ghz downlink is a low frequency signal used predominantly by military forces for long range communications. Used for satellite communications. I was able to gather some answers as to why is so.

The process of satellite communication begins at an earth station. But my seniors in my company seem not to be satisfied with the below answers. This frequency is called as downlink frequency. Uplink frequencies are higher than the corresponding downlink frequencies in the case of satellite communication.

The downlink is in the other direction. 5925 mhz to 6425 mhz is uplink band where as 3700 to 4200 mhz is downlink band. So lets suppose that bts as in case of gsm transmits using low frequency on the downlink. Because of its weaker power it requires a larger antenna usually above 1 8m 6ft.