(a) Derive general link equation. Find the expression for the C/N and…
Previous year question for Satellite Communication.
Question
(a) Derive general link equation. Find the expression for the C/N and G/T ratio. (10)
(b) A receiving system consist of an antenna having a noise temp of $60\text{K}$, feeding directly in to low noise Amplifier (LNA). The amplifier has noise temp of $120\text{K}$ and a gain of $45\text{dB}$. The coaxial feeder Between main receiver and LNA has a loss of $2\text{dB}$ and a noise figure of $9\text{dB}$. Calculate the system noise temp referred to input. (10)
- Year: 2018
- Subject: Satellite Communication