ITU-R P.371-6-1990
Choice of Indices for Long-Term Ionospheric Predictions - Section 6E - Ionospheric Propagation Prediction at Frequencies between About 1.6 and 30 MHz

Standard No.

ITU-R P.371-6-1990

Release Date

1990

Published By

ITU-R - International Telecommunication Union/ITU Radiocommunication Sector