FREE SPACE PATH LOSS


Enter the Distance, Frequency and System gains to "Calculate" the Free Space Path Loss. It is expressed in dB.

INPUT :

Distance b/w antenna (d):
Frequency (f):
Transmitting Antenna Gain (GTx): dB
Receiving Antenna Gain (GRx): dB


OUTPUT :

Free Space Path Loss (FSPL): dB

Free Space Path Loss (FSPL) calculations are often used to predict RF (Radio Frequency) signal strength in an Antenna system.
Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF communications systems.


Alternate Text

Formula:

FSPL = ( 20 * log10 (d) ) + ( 20 * log10 (f) ) + ( 20 * log ( 4 ℿ/c ) ) - ( GTx ) - ( GRx )


where,

d = Distance between the Antenna(metres),

f = Frequency(MHz),

GTx = The Gain of the Transmitting Antenna(dB),

GRx = The Gain of the Receiving Antenna(dB)

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