What Is C Ku Band Satellite

The ka band k band above is primarily used for two way consumer broadband and military networks.

What is c ku band satellite.

Frequencies between 3 700 4 200 ghz are on c band and require a satellite dish 7 5 2 25m or larger. The c band 4 to 8 ghz is used for many satellite communications transmissions some wi fi devices some cordless telephones as well as some surveillance and weather radar systems contents 1 use in satellite communication. Ku band frequencies or signals are mostly used for satellite communication like dth direct to home live feed. What is c band ku band.

C band is preferred in some locations where rainfalls are heavy as the situation in tropical regions of africa. C band and ku band fall under microwave frequencies and correspond to different regions within the electromagnetic spectrum as can be seen from the given below figure. Ka band dishes can be much smaller and typically range from 60cm 1 2m 2 to 4 in diameter. For instance due to dual polarization the 500 mhz raw spectrum allocated to fixed satellite services fss in either c band or ku band is reused to make it into 1 ghz spectrum.

The band in use refers to the radio frequencies used to and from the satellite. This is because the license fees for c band bandwidth are cheaper than ku band less operational expenditure opex. The ku band frequency range is 11 7 12 2 ghz or 11700 to 12220 mhz notice how these frequencies are higher than the c band frequency range. Circular polarization cp in turn is of two types right hand and left hand.

Ku band a portion of the electromagnetic spectrum is the lower part of 3 bands of the original nato k band an obsolete designation given to radio frequencies ranging from 20 40 gigahertz ghz. Ku band is under that in the frequency of 12 18 ghz. Shorter wavelengths mean that you need a smaller dish to receive these frequencies. K u band is primarily used for satellite communications most notably the downlink used by direct broadcast satellites to broadcast satellite television and for specific applications such as nasa s tracking data relay satellite used for international space station iss communications and spacex starlink satellites.

From a commercial point of view c band is better for satellite applications that need larger bandwidth. Frequencies between 10 700 12 750 ghz are on ku band. Because of the higher frequencies ku band waves have shorter wavelengths.