Comparison of propagation models ITU.R-P.1546 and ITU.R-P.1812

Prediction of radio propagation is a complex process, which includes a large amount of information such as: terrain, prediction of attenuation due to obstacles that may be faced during the propagation of radio signal and type of the location. Analysis could be simplified by using the average statistic results calculated during longer period of time (over the land and/or over the sea). The radio signal may come across the obstacles that might cause reflection, diffraction and discontinuity along the propagation path. The usage of appropriate software propagation models can simulate all of the mentioned aspects. The main purpose of this paper is to compare the accuracy of the software prediction models ITU-R P.1546 and ITU-R P.1812 with terrain measurements.