The KU Radiocommunication Assembly, considering that determination of the accuracy of HF field-strength prediction methods requires comparison of predicted field strengths against measured field-strength data of sufficient accuracy; that accurate HF field-strength measurements are therefore indispensable for the effective use of the HF spectrum.
ITU-R P.845-3 FRENCH-1997 Referenced Document
ITU-R P.533 Method for the prediction of the performance of HF circuits*, 2007-01-01 Update