CONTENTS

Annex 1� Calculation of the maximum permissible field strength� to protect radio monitoring stations
�1���� Introduction
�2���� General considerations
�3���� Determination of the maximum permissible field strength
������� 3.1���� Immunity of the receiver against strong signals
������� 3.2���� Receiver sensitivity
������� 3.3���� Receiver bandwidth
������� 3.4���� Antenna gain
������� 3.5 ����External noise
������� 3.6���� Calculation process
������� 3.7���� Interference effect of a larger number of stations
�4���� Typical parameter values
������� 4.1���� Receiver noise figure
������� 4.2���� IP3
������� 4.3���� Signal bandwidth
������� 4.4���� Antenna gain
������� 4.5���� RF cable attenuation
�5���� Example calculation using typical values