Satellite Ka Band Frequencies

The direct tv ka lnb has been chopped in half to produce two lna units.

Satellite ka band frequencies. The most popular frequency bands available on satellite are l band s band c band x band ku band k band and ka bands. The lna has retained the existing ka band feed and now provides lhc and rhc outputs on sma connectors. Ka band than at the ku band and other lower frequencies. The front end is the usual direct tv ka band lna.

The band in use refers to the radio frequencies used to and from the satellite. Transmission power is much greater compared to the c x or ku band beams. L band uses frequencies in the 1 to 2ghz range. 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.

Wrc 07 which inter alia called. In comparison the ka band satcom has a bandwidth of 3 5ghz for both uplink and downlink. The pictures below show the modified lnb. Wrc 12 decisions affecting the ka band new bss ka band allocations warc 92 allocated the 21 4 22 ghz band to the broadcasting satellite service in regions 1 and 3 with an effective date of 1 april 2007 allocation was subject to the interim procedures of resolution 525 rev.

Ku band utilises approximately 12 18ghz and. What s the difference between ka and ku band frequencies. The band is called k a short for k above because it is the upper part of the original nato k band which was split into. Ka band dishes can be much smaller and typically range from 60cm 1 2m 2 to 4 in diameter.

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. Ka band services uses the 26 5 40ghz segment of the electromagnetic spectrum. For example ku band allocation is around 2ghz for uplink and 1 3ghz for downlink with actual contiguous bandwidth allocation of less than 0 5ghz per satellite. We use cookies to improve website performance facilitate information sharing on social media and offer advertising tailored to your interests.

Primarily used for satellite communications for full time satellite tv networks or raw satellite feeds. Due to the higher frequencies of this band it can be more vulnerable to signal quality problems caused by rain fade again acm is used to help rain fade. The k a band pronounced as either kay ay band or ka band is a portion of the microwave part of the electromagnetic spectrum defined as frequencies in the range 26 5 40 gigahertz ghz i e. Commonly used in areas that are subject to tropical rainfall since it is less susceptible to rainfade than ku band the original telstar satellite had a transponder operating in this band used to relay the first live transatlantic tv.

Wavelengths from slightly over one centimeter down to 7 5 millimeters.