A17.15.2 RECOMMENDATION ITU-R P.528-5

Recommendation ITU-R P.528-5 contains a method for predicting basic transmission loss in the frequency range 100 MHz to 30 GHz for air-to-air, ground-to-air, and air-to-ground paths. It provides a step-by-step method to compute the basic transmission loss for time percentages of 1 to 99%. The only data needed for this method are the distance between antennas, the heights of the antennas above mean sea level, the frequency, polarization and the time percentage.

Recommendation ITU-R P.528 does not include effects such as hydrometeors, scintillation, and diffraction due to irregular terrain. Recommendation ITU-R P.528 does however include the ability to model trans-horizon paths, which can be useful for interference analysis.