CONTENTS

Annex 1� Sensitivity of radio astronomy systems
�1���� General considerations and assumptions used in the calculation of interference levels
������� 1.1���� Detrimental-level interference criterion
������� 1.2���� Integration time
������� 1.3���� Antenna response pattern
������� 1.4���� Bandwidth
������� 1.5���� Receiver noise temperature and antenna temperature
�2���� Special cases
������� 2.1���� Interference from GSO satellites
������� 2.2���� Interference from non-GSO satellites
������� 2.3���� The response of interferometers and arrays to radio interference