In satellite communication,the 6,text{GHz} fr | vedclass

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(A) In satellite communication systems,the signal transmitted from the Earth station to the satellite is called the $up\,	ext{link}$. This typically

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$up\,	ext{link}, down\,	ext{link}$

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(A) In satellite communication systems,the signal transmitted from the Earth station to the satellite is called the $up\,	ext{link}$. This typically uses a higher frequency,$6\,	ext{GHz}$,to overcome atmospheric attenuation.The signal transmitted from the satellite back to the Earth station is called the $down\,	ext{link}$. This typically uses a lower frequency,$4\,	ext{GHz}$,to reduce power requirements on the satellite.Therefore,the $6\,	ext{GHz}$ frequency is used for the $up\,	ext{link}$ and the $4\,	ext{GHz}$ frequency is used for the $down\,	ext{link}$.

In satellite communication,the $6\,\text{GHz}$ frequency is used for........... and the $4\,\text{GHz}$ frequency is used for...........

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