Satellite Uplink Frequency

Here are the band designators the first letter stands for the uplink the second letter for the downlink.

Satellite uplink frequency. The most popular frequency bands available on satellite are l band s band c band x band ku band k band and ka bands. Mode b would be called mode uv. The uplink dish is pointed toward a particular satellite and the uplinked signals are transmitted within a specific frequency range so as to be received by one of the transponders tuned to that. 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.

Io 86 lapan a2 uplink fm 88 5 hz ctcss downlink fm. Satellite vsat communication is split up in to four radio frequency rf bands that commercial communication and military satellites operate within. Satellite is in a low inclination low earth orbit and not visible north of about 30 degrees north or south of 30. Mode v u fm transponder vhf uplink.

This satellite carries an v u fm transponder and aprs packet. With the variety of satellite frequency bands that can be used designations have been developed so that they can be referred to easily. The following table shows the main frequency bands used for satellite links. 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.

A company can specialize in providing uplinks downlinks or both. System activation was first observed at 01 02 utc on september 2. The higher frequency bands typically give access to wider bandwidths but are also more susceptible to signal degradation due to rain fade the absorption of radio signals by atmospheric rain snow or ice. Transponder is turned on monday wednesday friday at 2200 utc for 24 hours.

For real time updates about which mode the satellite is in see the amsat live oscar satellite status page. Io 86 lapan a2 145 880 mhz. 144 350 mhz fm uhf 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.

The first uplink jamming interferes with the signal going from a ground station or user terminal to the satellite. This satellite has been reported to be more active lately. 3 the second type.