ITU-R PI.684-1990
Prediction of Field Strength at Frequencies Below About 500 khz - Section 6D - Ionospheric Propagation Prediction at Frequencies Below About 1.6 MHz

Standard No.

ITU-R PI.684-1990

Release Date

1990

Published By

International Telecommunication Union (ITU)

Latest

ITU-R PI.684-1990

Scope

The CCIR, Considering (a) that there is a need to give guidance to engineers for the planning of radio services in the frequency band below about 500 kHz; (b) that methods developed for the estimation of field strength at frequencies below about 500 kHz are described in Reports 265 and 895, while, on the other hand, different methods which have been developed for the frequency band 150-1705 kHz are described in Report 575.

ITU-R PI.684-1990 history

• 1990 ITU-R PI.684-1990 Prediction of Field Strength at Frequencies Below About 500 khz - Section 6D - Ionospheric Propagation Prediction at Frequencies Below About 1.6 MHz