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An earth station employs a power amplifier providing an output power of 100W and an antenna 5m diameter for both transmission and reception.
written 6.7 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 6.7 years ago

The transmission frequency is 6.25GHz and receiving frequency is 4.5 GHz. System noise temperature is 140 K. Find EIRP and G/T ratio.

Subject : Satellite Communication and Network

Topic: Satellite Links
satellite communication and network
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written 6.7 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 6.7 years ago

Data:

Output power Pt =100 W

Diameter of transmitter antenna =5m

Diameter of receiver antenna =5m

Transmission frequency = 6.25GHz

System noise temeperature =140 K

To find: EIRP (Equivalent/Effective Isotropic Radiated Power), G/T Ratio

Solution:

Gain of transmitter antenna = $Gt = \eta (10.472 f D)^2$

Where $\eta$ = antenna …

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