![]() Propagation data required for the design systems in the land mobile-satellite service Propagation data required for the design of Earth-space maritime mobile telecommunication systems Propagation data required for the design of broadcasting-satellite systems ![]() Propagation data required for the evaluation of coordination distances in the frequency range 100 MHz to 105 GHzĪttenuation by atmospheric gases and related effectsĬharacterization of the variability of propagation phenomena and estimation of the risk associated with propagation margin Propagation data required for the evaluation of interference between stations in space and those on the surface of the Earth Propagation data and prediction methods required for the design of Earth-space telecommunication systems Propagation prediction techniques and data required for the design of trans-horizon radio-relay systems Propagation data for terrestrial maritime mobile services operating at frequencies above 30 MHz Method for calculating sporadic-E field strength Method for the prediction of the performance of HF circuits Ionospheric effects and operational considerations associated with artificial modification of the ionosphere and the radio-wave channel Ionospheric propagation data and prediction methods required for the design of satellite networks and systems Propagation data and prediction methods required for the design of terrestrial line-of-sight systems Prediction methods for the terrestrial land mobile service in the VHF and UHF bands ITU-R P.369-6Įlectrical characteristics of the surface of the EarthĪ propagation prediction method for aeronautical mobile and radionavigation services using the VHF, UHF and SHF bands The radio refractive index: its formula and refractivity data Prediction procedure for the evaluation of interference between stations on the surface of the Earth at frequencies above about 0.1 GHz Sky-wave field-strength prediction method for the broadcasting service in the frequency range 150 to 1600 kHz ITU-R reference ionospheric characteristics and methods of basic MUF, operational MUF and ray-path prediction Broadcasting servicesĬhoice of indices for long-term ionospheric predictionsĭefinitions of maximum and minimum transmission frequencies VHF and UHF propagation curves for the frequency range from 30 MHz to 1 000 MHz. Note - Suppressed on 24/10/97 (RA-97) - This Recommendation has been replaced by Rec. Ground-wave propagation prediction method for frequencies between 10 kHz and 30 MHz The concept of transmission loss for radio links Definitions of terms relating to propagation in non-ionized mediaĪcquisition, presentation and analysis of data in studies of radiowave propagationĮxchange of information for short-term forecasts and transmission of ionospheric disturbance warnings
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