The following parameters apply to an uplink earth station’s power budget with an uplink frequency of 14 GHz and the distance satellite is 40000 km.

         

          Earth station                                         Satellite_______________________

          Transmit power, P_t            100W           Antenna efficiency, η           55%

          Antenna diameter, D         4m               Antenna gain, G_s                 38.2 dBi

          Antenna efficiency, η         60%             Antenna noise temperature, T_s  290K

         

          Boltzmann’s constant   -228.6 dBW/K.

          Find:

i)        Earth station’s effective isotropically radiated power (EIRP)

ii)        Free space loss FSL

iii)       Satellite’s G/T and

iv)       Uplink carrier to noise spectral density