CONTENTS

Policy on Intellectual Property Right (IPR)
ANNEX� 1
Protection of the broadcasting service from the fixed and land mobile services
1.���� Minimum field strength to be protected
2.���� Protection ratios
������� 2.1���� General
������� 2.2���� Protection ratios for the vision channel
����������������� 2.2.1���� 525-line systems
����������������� 2.2.2���� 625-line systems
������� 2.3���� Protection ratios for the sound channel
����������������� 2.3.1���� Analogue sound systems (one or two-sound carrier systems)
����������������� 2.3.2���� Digital sound systems
������� 2.4���� Protection ratios for out-of-channel interference
����������������� 2.4.1���� Adjacent channels
����������������� 2.4.2���� Image channels
����������������� 2.4.3���� Other types of interference
3.���� Protection margin for television services
4.���� Additional factors to be considered
������� 4.1���� Adjustment factors (AF)
����������������� 4.1.1���� Interference from stations of the fixed service or base stations of the land mobile service which are orthogonally polarized with respect to a station of the television service
����������������� 4.1.2���� Interference from stations of the fixed service or base stations of the land mobile service which have the same polarization as a station of the television service
����������������� 4.1.3���� Interference from a land mobile station operating at more than 40 km outside the coverage area of a station of the television service
����������������� 4.1.4���� Interference from a land mobile station operating less than 40 km from a receiving site of a station of the television service
������� 4.2���� Multiple interference from co-sited sources
������� 4.3���� Multiple interference from non co-sited sources
������� 4.4���� Effective transmitting antenna heights
5.���� Interference assessments
PART� II
Sound broadcasting services
1.���� Minimum field strengths to be protected
2.���� Protection ratios
3.���� Protection margin for sound broadcasting services
4.���� Additional factors to be considered
������� 4.1���� Adjustment factors (AF)
����������������� 4.1.1���� Interference from a land mobile station operating at more than 40 km outside the coverage contour of a station of the sound broadcasting service
������ �����������4.1.2���� Interference from a land mobile station operating less than 40 km from a receiving site of a station of the sound broadcasting service
������� 4.2���� Multiple interference from co-sited sources
������� 4.3���� Multiple interference from non co-sited sources
������� 4.4���� Effective transmitting antenna heights
5.���� Interference assessments
APPENDIX 1
�Determination of the usable field strength by the simplified multiplication method
������� 4.1���� The concept of usable field strength
������� 4.2���� Calculation of the probability integral
����������������� 4.2.1���� Tabular evaluation
����������������� 4.2.2���� Evaluation using the Hastings approximation
������� 4.3���� Practical calculation procedures to determine the usable field strength
APPENDIX 2
����������������� �2.1.3���� Effective transmitting antenna height
ANNEX� 2
Protection of the land mobile service from the broadcasting service
1.���� Minimum field strength values to be protected
������� 1.1���� Protection of analogue speech systems
������� 1.2���� Protection of digital speech systems
2.���� Protection ratios
������� 2.1���� Sharing with the broadcasting service (television) when the mobile channel falls within the television channel
������� 2.2� ���Sharing with the broadcasting service (sound) when the mobile channel falls within 600 kHz of the broadcasting channel
������� 2.3���� Other interference mechanisms
����������������� 2.3.1���� Desensitization
����������������� 2.3.2���� Intermodulation products
����������������� 2.3.3���� Spurious responses
3.���� Protection margin
������� 3.1���� Assessment of the protection margin
4.���� Additional factors to consider
������� 4.1���� Receiving antenna discrimination
������� 4.2���� Antenna heights
5.� ���Interference assessments
ANNEX� 3
Protection of the fixed service from the broadcasting service
Introduction
1.���� Minimum field strength to be protected
2.���� Protection ratios
������� 2.1���� Sharing in the broadcasting channel (television)
������� 2.2���� Sharing outside the broadcasting channel (television)
������� 2.3���� Other interference mechanisms
����������������� 2.3.1���� Desensitization
����������������� 2.3.2���� Intermodulation products
����������������� 2.3.3���� Spurious responses
3.� ���Protection margin
������� 3.1���� Assessment of the protection margin
4.���� Additional factors to consider
������� 4.1���� Receiving antenna discrimination
������� 4.2���� Receiving antenna cross-polarization discrimination