Observations needed to provide basic indices for ionospheric propagation

Shopping cart

Opinion 23

Main
Number	Title	Status
Op.23-7(2016)	Observations needed to provide basic indices for ionospheric propagation	In force (Main)

Previous versions
Number	Title	Status
Op.23-6 (1999)	Observations needed to provide basic indices for ionospheric propagation	Superseded

Publications by Sector

General Secretariat and ITU Telecom

Radiocommunication (ITU-R)

Standardization (ITU-T)

Development (ITU-D)