FREE SPACE PATH LOSS
Free space path loss is the degradation of signal
strength of electromagnetic wave due to LOS (Line Of Sight) path in free space.
Free space path loss (FSPL) is strictly dependent only on
distance and frequency.
FSPL
= (4πd/λ)2
To clear the concept FSPL does not at all depend on the antenna gain ,
transmit power , receiver sensitivity or any other hardware imperfections.
Free space loss is calculated considering ideal atmospheric
conditions with no obstacles in between to cause reflection, refraction or diffraction.
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