Satellite Uplink And Downlink Frequency Range

Simplified summary of ka band satellite allocations annex 1 simplified summary of ka band satellite frequency allocations for communication satellite networks uplink downlink 27 0 ghz 17 3 ghz fss uplink in in regions 1 and 3 band 17 3 18 1 ghz.

Satellite uplink and downlink frequency range. Duplex spacing of 45 mhz is used. Take a look at the drawing below and note the path of devices on the left hand. The term uplink chain is used to refer to the series of pieces of equipment that are used to produce a radio frequency signal for sending out data. 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.

For real time updates about which mode the satellite is in see the amsat live oscar satellite status page. Because of its weaker power it requires a larger antenna usually above 1 8m 6ft. 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. The description provided here is imprecise as the exact configuration can vary widely.

5925 mhz to 6425 mhz is uplink band where as 3700 to 4200 mhz is downlink band. Satellite is in a low inclination low earth orbit and not visible north of about 30 degrees north or south of 30. In europe ku band downlink is used from 10 7 ghz to 12 75 ghz for direct broadcast satellite services such as astra. 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.

This extended gsm e gsm uses frequency range 880 915 mhz uplink and 925 960 mhz downlink adding 50 channels channel numbers 975 to 1023 and 0 to the original gsm 900 band. However due to the lower frequency range it performs better under adverse weather conditions on the ground. 6ghz band frequency is used for uplink and 4ghz frequency band is used for downlink in c band satellite communication operation. The downlink chain is built using nearly the same equipment in reverse order.

Io 86 lapan a2 145 880 mhz. The direction from vsats to sallite is known as uplink and the direction from satellite to vsats is known as downlink. 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. 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.

Io 86 lapan a2 uplink fm 88 5 hz ctcss downlink fm.