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//Chapter 13 example 1
//------------------------------------------------------------------------------
clc;
clear;
// Given data
f = 6; // microwave terrestrial comm link oper. freq in Ghz
D = 50; // single hop path length in miles
// mid way of path length
D1 = 25;
D2 = 25;
N = 3; // N value for third fresnal zone
// calculations
F1 = 72.2*((D1*D2)/(D*f))^0.5; // first fresnel zone
F3 = F1*sqrt(N); // Third fresnal zone
// Output
mprintf('First Fresnel zone distance = %3.1f feet\n Third Fresnel zone distance = %3.1f feet\n',F1,F3);
//------------------------------------------------------------------------------
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