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- Free Space Path Loss based on geometrical (spherical) loss; this is standard FSPL
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- Enter distance and frequency (down to 4.9GHz only) and calculate obstruction clearance height
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- A simple but useful tool. Enter frequency (MHz) and distance (Meters) and get path loss with annotated formulae
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- Simple Fresnel Zone calculator but the result for the full size of the 1st Fresnel Zone equals the 60% value; oops.
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- A simple FSPL calculator with humorous commentary accompanying the results.
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- Includes: Power Budget, FSPL, Fresnel Zones, Performance and descriptions of the underlying formulae
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- Fresnel zones for radio transmission near wind turbines. A somewhat different output report format.
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- Calculates Fresnel Zone radius at a specified distance and the Earth Height for the tower separation (both miles and meters)
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- No automated calculator but the math is detailed with solved problems
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- No automated calculator but more in-depth math and a table of sample results
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- Meters in; kilometers out (plus a number of values oriented to planetary and space science)
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- The "Problem" page explains the derivation of the 4/3 factor. The solved problem shows the formula for RLOS
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- Describes optical and radio LOS and includes a graph for calculating LOS based on two antenna heights
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- Just the math here. This page gives the arithmetic basis for various constants of proportionality that are used.
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