Annex 1����
�1���� Definition of
availability����
�2���� General considerations�����
�3���� Unavailability due to
equipment����
�4���� Unavailability due to
propagation��
�5���� Unavailability due to
Sun transit����
������� 5.1����
Links
carrying public switched network (PSN) traffic����������
������� 5.2����
Links
carrying time division multiple access and demand assignment multiple access
traffic����
������� 5.3����
Links
carrying leased traffic
�6���� Effect of propagation on
unavailable time��
�7���� Fade duration and outage
intensity���� �����