The following parameters apply to 14/12 GHz satellite system.

Uplink	Units
Earth Station transmitter output power	200 W
Earth station back off loss	10 dB
Earth station antenna efficiency	0.7
Earth station antenna diameter	4 m
Additional atmospheric losses	0.6 dB
Satellite receiver G/T ratio	5.3 dBK-1
Bandwidth	36 MHz
Distance between satellite and earth station	35000 km

Downlink	Units
Satellite transmitter output power	10 W
Satellite branching and feeder losses	0.6 dB
Satellite transmit antenna gain	31.5 dB
Earth station receive antenna gain	52.5 dB
Earth station equivalent noise temperature	270 K
Distance between satellite and earth station	35000 km
Atmospheric losses	0.4 dB
Free space loss	205 dB
Boltzmann’s constant	-228.6 dBW/K

          Calculate:

          i)    Earth station transmit antenna gain

          ii)   Uplink free space loss

          iii)  Uplink carrier to noise power spectral density ratio

          iv)  Uplink carrier to noise power ratio

          v)   Earth station G/T ratio and

          vi)  Downlink carrier to noise power spectral density ratio