All about VSAT C-band technology
C-band was originally defined by the ITU (International Telecommunication Union) as the first satellite band. Its frequencies range from 4 to 8 GHz. A range widely used today by terrestrial microwave backhaul links. This is mainly due to the fact that the sub-6 GHz band is license-free in many countries.
The signals of the VSAT C-band technology are less focused compared to higher satellite frequencies, as with KU-band technology. This is due to the longer wavelength in C-band. What this means? Signals that are less focused are less affected by rain. This is also known in the industry as ‘rain fade of satellite signals’. Because of this, C-band is more reliable than KU-band in rainy environments such as the jungle or DRC. With VSAT C-band technology, the lower focus of the band signals is only ranging from 0.4 to 1 dB. Another advantage of these lower focused signals: they offer a larger coverage area.
Compared to KU-band, C-band does require a larger dish to receive the signals from the satellite. The size varies from a diameter of 2.4, 3 to 3.7 meters. Therefore, when you make the choice for VSAT C-band you need more expensive equipment than when you choose KU-band.
Are you interested in knowing more about KU-band? You can read more here or contact us for more information.