The general equation for calculating the clearance zone radius at any point P in the middle of the link is the following:
Fn = The nth Clearance Zone radius in metres
d1 = The distance of P from one end in metres
d2 = The distance of P from the other end in metres
λ = The wavelength of the transmitted signal in metres
The cross section radius of the first Clearance zone is the highest in the center of the RF LoS which can be calculated as:
- r = radius in feet
- D = total distance in miles
- f = frequency transmitted in Gigahertz.
- r = radius in metres
- D = total distance in kilometres
- f = frequency transmitted in gigahertz.