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Fairview Microwave's Free Space Path Loss Calculator calculates the loss (in dB) between two antennas where the gain, distance and frequency are known.
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Result:
Free Space Path Loss (FSPL) calculations are often used to help predict RF 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.
**Note: All of our calculators allow SI prefix input. For example, if you wish to input "25000000", just type "25M" instead. See the quick-reference table below for all compatible SI prefixes.
Disclaimer: Fairview Microwave’s RF calculators are intended for educational use and for reference only. These RF calculators were designed by engineers and for engineers. Fairview Microwave does not make any claims that the results derived from these RF calculators are sufficient enough to fully design, build or test real products in real-world applications.
