Satellite Communication Uplink Frequency

Satellite communication col john keesee satellite communications architecture identify requirements specify architectures determine link data rates design size each link document your rationale definition.

Satellite communication uplink frequency. Satellite vsat communication is split up in to four radio frequency rf bands that commercial communication and military satellites operate within. In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra. Used for satellite communications. An rf signal of the same frequency as the targeted uplink signal is transmitted to the satellite aiming to limit the satellite transponder from differentiating between the jamming signal and the actual signal.

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. These different frequency bands have separate uplink tx and downlink rx frequencies require different rf components lnb and buc and are suited to different applications. The most popular frequency bands available on satellite are l band s band c band x band ku band k band and ka bands. Iridium satellite frequency description between two iridium satellites 23 18 to 23 38 ghz between iridium phone terminal and iridium satellite l band in the range from 1621 35 to 1626 5 mhz used for both uplink and downlink.

3 the second type downlink jamming disrupts transmissions sent from the satellite to ground based or airborne receivers using rf signals that mimic the frequency of the downlink signal. Ka band 26 40 ghz communications satellites uplink in either the 27 5 ghz and 31 ghz bands and high resolution close range targeting radars on military aircraft.