| ||||||||
Home > Satellite Communication > Link Budgeting Explained > Calculation of uplink to noise ratio | ||||||||
Link Power Budgetting 4.Calculation of uplink to noise ratio1.Up link rain attenuation (dB) Rain fall results in attenuation of radio waves by scattering , and by absorption , of energy from the wave. Rain attenuation increases with increasing frequency and in worse at Ku band compared to C band. Studies have shown that the rain attenuation for horizontal polarization is considerably greater than for vertical polarization. 2.Satellite G/T (dB/k) G/T ratio indicates figure of merit. G/T ratio is the ratio of gain of the satellite to the thermal noise temperature of the satellite. G/T ratio depends on the satellite components. 3.Uplink C/No(dB Hz) The up link of a satellite circuit is the link in which the earth station is transmitting the signal
and the satellite is receiving it .
| ||||||||
| ||||||||
Home Copyright © 2003-2018 TutorialsWeb.com Disclaimer Sitemap |