CONTENTS

Annex� 1����
�1���� Introduction������
�2���� Propagation loss��
������� 2.1���� Attenuation due to atmospheric gases���������
������� 2.2���� Diffraction fading���
������� 2.3���� Fading and enhancement due to multipath and related mechanisms��
������� 2.4� ���Attenuation due to hydrometeors����
�3���� Variation in angle-of-arrival/launch�����������
�4���� Reduction of cross-polar discrimination (XPD)�����
������� 4.1���� Prediction of XPD outage due to clear-air effects���
������� 4.2���� Prediction of XPD outage due to precipitation effects���������
�5���� Distortion due to propagation effects��������
������� 5.1���� Prediction of outage in unprotected digital systems��
�6���� Techniques for alleviating the effects of multipath propagation��������
������� 6.1�� ��Techniques without diversity�����������
������� 6.2���� Diversity techniques�����������
�7���� Prediction of total outage�
�8���� Propagation aspects of bringing-into-service���������
Appendix� 1 to� Annex� 1 - Method for determining the geoclimatic factor, K, from measured overland fading data����