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Diffstat (limited to '2300/CH21/EX21.13.3/Ex21_3.sce')
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diff --git a/2300/CH21/EX21.13.3/Ex21_3.sce b/2300/CH21/EX21.13.3/Ex21_3.sce new file mode 100755 index 000000000..86ad505d7 --- /dev/null +++ b/2300/CH21/EX21.13.3/Ex21_3.sce @@ -0,0 +1,13 @@ +//scilab 5.4.1
+//Windows 7 operating system
+//chapter 21 Communication Systems
+clc
+clear
+//fc=9*sqrt(Np)
+fc=3*10^6//fc=critical frequency in Hz
+Np=(fc^2)/81//Np=electron concentration at the reflecting point
+//h=height of the reflecting point from the bottom of the layer
+//Np=(5*10^10)+(10^9*h)....(given)
+h=(Np-(5*10^10))/10^9
+H=100//H=height above the surface of the earth in km
+disp("km",h+H,"The required height above the ground is =")
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