Wolfram Computation Meets Knowledge

Wolfram Formula Repository (Under Development)

Radio Horizon Distance

The horizon or skyline is the apparent line that separates earth from sky, the line that divides all visible directions into two categories: those that intersect the Earth's surface, and those that do not. The radio horizon distance assumes a generally line-of-sight propagation, which means that the waves travel in a direct path from the source to the receiver.

The radio horizon distance increases with altitude.

Formula

QuantityVariable["d", "Distance"] == Quantity[1, "NominalEarthEquatorialRadius"]*(1 + Quantity[4/3, "NominalEarthEquatorialRadius"^(-1)]*QuantityVariable["h", "Height"])*Sqrt[1 - (1 + Quantity[4/3, "NominalEarthEquatorialRadius"^(-1)]*QuantityVariable["h", "Height"])^(-2)]

Forms

Examples

Get the resource:

In[1]:=
ResourceObject["Radio Horizon Distance"]
Out[1]=

Get the formula:

In[2]:=
FormulaData[ResourceObject["Radio Horizon Distance"]]
Out[2]=

Use some values:

In[3]:=
FormulaData[ ResourceObject[ "Radio Horizon Distance"], {QuantityVariable["d","Distance"] -> Quantity[5, "Kilometers"]}]
Out[3]=

Publisher Information