Difference Between Uplink And Downlink Frequency In Satellite Communication

The direction from vsats to sallite is known as uplink and the direction from satellite to vsats is known as downlink.

Difference between uplink and downlink frequency in satellite communication.

What are 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. 5925 mhz to 6425 mhz is uplink band where as 3700 to 4200 mhz is downlink band. These terms should not be confused with downstream and upstream.

Some companies sell uplink and downlink services to television stations corporations and to other telecommunication carriers. It should be apparent then. 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. If both uplink and downlink shared the same frequency.

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. 6ghz band frequency is used for uplink and 4ghz frequency band is used for downlink in c band satellite communication operation. This transmission is frequency shifted at the satellite down converted usually and retransmitted back to earth as a downlink. The satellite transmitter generates a signal that would jam its own receiver.