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the Total link distance (in Miles or Kilometers). If you do not enter an
Obstacle distance (in Miles or Kilometers) this calculator will use the
mid-point for all calculations (Note: assumes antennas at same height).
Enter the system Frequency in MHz and then click the 'Calculate' button.
(1 GHz = 1000 MHz e.g. 2400 = 2.4 GHz) The calculator will generate the
radius of the 1st Fresnel zone only (at the obstacle point or the mid-point),
the 60% (no obstacle) radius and the height of the earth curvature at the
mid-point of the Total link distance.
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