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  Home : ITU-R : Study-Groups : Circular of Basic Indices for Ionospheric Propagation
Radiocommunication Sector (ITU-R)  
Circular of Basic Indices for Ionospheric Propagation

The ITU Radiocommunication Bureau has prepared the following table of values of basic indices, based on data kindly supplied by the Solar Influences Data analysis Centre (SIDC, Brussels), the National Geophysical Data Center, Boulder, Colorado and the National Research Council, near Penticton, British Columbia, Canada.

Date of circular: 05/2014

Word version of this Circular


 

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Updated : 2014-07-15