ITU-R P.313
Exchange of information for short-term forecasts and transmission of ionospheric disturbance warnings
现行
发布日期 :
2008-03-01
实施日期 :
ITU-R P.453
The radio refractive index: its formula and refractivity data
现行
发布日期 :
2015-04-01
实施日期 :
ITU-R P.530
Propagation data and prediction methods required for the design of terrestrial line-of-sight systems
现行
发布日期 :
2020-10-01
实施日期 :
ITU-R P.617
Propagation prediction techniques and data required for the design of trans-horizon radio-relay systems
现行
发布日期 :
2008-03-01
实施日期 :