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Explain what is meant by noise factor? For what source temperature is noise factor defined? The EIRP from a satellite is 49.4dBw.
written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 9.5 years ago

Calculate the power density at a ground station for which the range is 40,000 km and the power delivered to matched load at a ground station receiver if the antenna gain is 50 dB the downlink frequency is 4 GHZ. - Marks: 10 M

Year: Dec 2014
satellite communication and network
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written 9.5 years ago by gravatar for teamques10 teamques10 ★ 70k •   modified 9.5 years ago

Noise factor (F)

Noise factor is alternative way to represent amplifier noise. In defining the noise factor of an amplifier the source is taken to be at room temperature denoted by $T_0$ usually taken at $290K$.

The input noise from such a source is kT_0 and the output noise from …

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