Fresnel zones and Radio Line of Sight

Set display of Fresnel zones on LOS Parameters form

Computation of Fresnel zones for radio line of sight requires two parameters:

Interpretation of the Fresnel zones:

The Fresnel ellipsoid is defined as the loci of all points for which of the sum of the distances from the two antennas is greater by half a wavelength than the direct distance.

The first Fresnel zone is shown in maroon on the profile. The inner 20% of the first Fresnel zone is shown in purple, and must be free from all obstructions.

You can get a graph showing  intrusions into the first Fresnel zone.

Last revision 7/7/2015