CONTENTS

Policy on Intellectual Property Right (IPR)
Annex 1� Prediction of basic and operational MUFs
�1���� Introduction
�2���� Mode consideration
�3���� Prediction of F2-layer basic MUF
������� 3.1���� Ground distance D up to dmax
������� 3.2���� Ground distance D greater than dmax
�4���� Prediction of F1-layer basic MUF
�5���� Prediction of E-layer basic MUF
������� 5.1���� Ground distance up to 2 000 km
������� 5.2���� Ground distance between 2 000 and 4 000 km
�6���� Prediction of the operational MUF
�7���� Prediction of the optimum working frequency (OWF)
�8���� Prediction of the highest probable frequency (HPF)
�9���� Computer program
Annex 2� Prediction of ray path