The ITU Radiocommunication Assembly considering:a) that for the design of communication systems, propagation prediction models with global validity are necessary;b) that propagation and radiometeorological data are of fundamental importance for the development and testing of such prediction models;c) that, to facilitate the comparison of data and results, it is desirable to acquire and present propagation and radiometeorological data in a uniform manner.
ITU-R P.311-14-2013 history
2013ITU-R P.311-14-2013 Acquisition presentation and analysis of data in studies of radiowave propagation