5925 mhz to 6425 mhz is uplink band where as 3700 to 4200 mhz is downlink band.
Uplink and downlink frequency range in satellite communication.
I was able to gather some answers as to why is so.
This frequency is called as downlink frequency.
Carrier processor performs the frequency down conversion of received signal uplink.
High frequency means higher attenuation.
But my seniors in my company seem not to be satisfied with the below answers.
However due to the lower frequency range it performs better under adverse weather conditions on the ground.
The uplink is from your user equipment ue cell phone hotspot or other device to the base station.
In satellite communication the signals have to cross the atmosphere which presents a great deal of attenuation.
It receives uplink signal from the satellite antenna and transmits downlink signal to the satellite antenna.
So lets suppose that bts as in case of gsm transmits using low frequency on the downlink.
In similar way second earth station can also communicate with the first one.
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.
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.
The downlink is in the other direction.
The direction from vsats to sallite is known as uplink and the direction from satellite to vsats is known as downlink.
Low noise amplifier lna amplifies the weak received signal.
With the variety of satellite frequency bands that can be used designations have been developed so that they can be referred to easily.
Uplink frequencies are higher than the corresponding downlink frequencies in the case of satellite communication.
This block determines the type of transponder.
Finally at the lowest end of the satellite transmission range the c band operates between 3 7 and 4 2 ghz downlink and is ideal for voice and data transmission because its lower.
There are two main ways to duplex these two signals plus a third under development.
Because of its weaker power it requires a larger antenna usually above 1 8m 6ft.
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 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.
The process of satellite communication begins at an earth station.
In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra.
