For a GEO satellite what is the free space loss (Ldb)...

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For a GEO satellite, what is the free space loss (L_db) at the equator in terms of carrier wavelength (λ)?

A. 20log(λ) + 21.98

B. -20log(λ) + 173.07

C. 20log(λ) - 173.07

D. -20log(λ) + 21.98

Answer: Option B

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