Uplink And Downlink Frequency In Satellite Communication

To prevent interferance caused by multiple sites transmitting on the same frequencies government agencies and standards organizations around the globe try to keep the usage organized and often such controls take the form of government regulations which carry the weight. Trying to receive and transmit an amplified version of the same uplink waveform at same satellite will cause unwanted feedback or ring around from the downlink antenna back into the receiver. Communication systems uplink and downlink frequency please watch.

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High frequency means higher attenuation.

Uplink and downlink frequency in satellite communication.

6ghz band frequency is used for uplink and 4ghz frequency band is used for downlink in c band satellite communication operation. 5925 mhz to 6425 mhz is uplink band where as 3700 to 4200 mhz is downlink band. 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. In the context of satellite communications a downlink dl is the link from a satellite to a ground station.

So lets suppose that bts as in case of gsm transmits using low frequency on the downlink. The direction from vsats to sallite is known as uplink and the direction from satellite to vsats is known as downlink. The satellite transmitter generates a signal that would jam its own receiver. In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra.

Primarily used for satellite communications for full time satellite tv networks or raw satellite feeds. If both uplink and downlink shared the same frequency. Ka band 26 40 ghz communications satellites uplink in either the 27 5 ghz and. 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.

I was able to gather some answers as to why is so. But my seniors in my company seem not to be satisfied with the below answers. There are a number of radio frequency ranges in use in satellite communications such as c x ku ka and even ehg and v band. Used for satellite communications.

Now as would have thought separate frequency bands are always allocated for uplink and downlink signals often separated by a gap maybe for future allocation since the span of guard bands. What are uplink and downlink. Pertaining to radiocommunication service a downlink dl or d l is the portion of a feeder link used for the transmission of signals from a space radio station space radio system or high altitude platform station to an earth station.

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