Committee on Radio Astronomy Frequencies

Transmission loss for diffraction scenario

This routine calculates transmission loss due to diffraction for specified distance between transmitter and receiver using Recommendations ITU-R P.452 and P.526.

Last modified: September 23, 2004

distance of transmitter to receiver:		(in km)
frequency:		(in GHz)
height of receiver:		(in meters)
height of transmitter:		(in meters)
percentage of time lost due to variable propagation:		(this value should be 10% or less)
air pressure:		(in hPa)
temperature:		(in ^oC)
water vapour density:		(in g/cm³)