1 - AS 3516.1-1988 SITING OF RADIOCOMMUNICATIONS FACILITIES - LF, MF AND HF TRANSMITTING AND HF RECEIVING FACILITIES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE AND APPLICATION.
6 - 1.2 REFERENCED DOCUMENTS.
6 - 1.3 DEFINITIONS.
8 - SECTION 2. BASIC SYSTEM PROPAGATION NEEDS
8 - 2.1 GENERAL PROPAGATION CHARACTERISTICS.
8 - 2.2 ANTENNA CHARACTERISTICS.
8 - 2.2.1 General characteristics.
8 - 2.2.2 LF antennas.
8 - 2.2.3 MF antennas.
8 - 2.2.4 HF antennas.
8 - 2.3 TERRAIN REQUIREMENTS.
8 - 2.3.1 Selection.
8 - 2.3.2 Ground surface.
8 - 2.3.3 Reflecting surface (HF).
9 - 2.3.4 Soil constants.
10 - SECTION 3. ECONOMICS OF CHOICE
10 - 3.1 CHOICE OF SITE.
10 - 3.2 SITE CLEARANCE.
10 - 3.3 ACCESS ROAD.
10 - 3.4 POWER.
10 - 3.5 BEARERS.
10 - 3.6 LAND COST.
10 - 3.7 VULNERABILITY TO ENVIRONMENTAL PHENOMENA.
10 - 3.8 CONSTRUCTIONAL ASPECTS.
10 - 3.9 MAINTENANCE ASPECTS AND MEAN TIME TO REPAIR (MTTR) REQUIREMENTS.
10 - 3.10 ENVIRONMENTAL ACCEPTABILITY.
10 - 3.11 FUTURE PLANNING.
11 - SECTION 4. IMPACT OF EXTERNAL AND ON-SITE RADIO INTERFERENCE
11 - 4.1 GENERAL.
11 - 4.2 LF, MF AND HF TRANSMITTING FACILITIES.
11 - 4.2.1 General interference.
11 - 4.2.2 Other transmitting facilities.
11 - 4.2.3 Re-radiators.
11 - 4.3 HF RECEIVING FACILITIES.
11 - 4.3.1 General.
11 - 4.3.2 Atmospheric noise.
11 - 4.3.3 Galactic noise.
11 - 4.3.4 Man-made noise.
15 - 4.3.5 Distant Systems.
15 - 4.3.6 Site noise measurements.
18 - SECTION 5. IMPACT OF WANTED RADIATION
18 - 5.1 GENERAL.
18 - 5.2 HUMAN HEALTH.
18 - 5.3 FLAMMABLE MATERIAL, FUELS AND EXPLOSIVE STORES.
18 - 5.4 DOMESTIC, INDUSTRIAL AND SCIENTIFIC EQUIPMENT AND SYSTEMS.
18 - 5.4.1 Effects of interference.
18 - 5.4.2 Limits of tolerance.
18 - 5.4.3 Degradation.
18 - 5.4.4. Permitted spurious radiation.
18 - 5.4.5. Abatement of interference.
19 - 5.5 OTHER RADIOCOMMUNICATIONS SYSTEMS.
19 - 5.5.1 Mutual interference.
19 - 5.5.2. Spurious radiation.
19 - 5.5.3. Separation distances.
20 - APPENDIX A - PROPAGATION CHARACTERISTICS
20 - A1 INTRODUCTION.
20 - A2 THE TROPOSPHERE.
20 - A3 THE IONOSPHERE.
20 - A4 CHARACTERISTICS OF RADIO WAVE PROPAGATION AS A FUNCTION OF FREQUENCY.
20 - A4.1 LF.
20 - A4.2 MF.
20 - A4.3 HF.
22 - APPENDIX B - REFLECTION ZONE
24 - APPENDIX C - SEPARATION DISTANCES BETWEEN SOURCES OF MAN- MADE RADIO NOISE AND THE BOUNDARY OF HF RECEIVING AND DF FACILITIES
24 - C1 INTRODUCTION.
24 - C2 SEPARATION DISTANCE CRITERIA.
24 - C2.1 General.
24 - C2.2 Measuring frequency.
24 - C2.3 Measurement mode.
26 - C2.4 Propagation attenuation.
27 - C2.5 Degree of degradation to receiving facilities.
28 - C2.6 Site boundary.
28 - C3 CALCULATION OF SEPARATION DISTANCES BETWEEN POWER LINES AND HF RECEIVING STATIONS AND DF FACILITIES.
28 - C3.1 Method.
28 - C3.2 Generation of radio noise by power lines.
28 - C3.3 Correction and attenuation factors.
30 - C3.4 Other restrictions.
30 - C4 CALCULATION OF SEPARATION DISTANCES BETWEEN ROADS AND HF RECEIVING STATIONS.
31 - C5 CALCULATION OF SEPARATION DISTANCES BETWEEN HF RECEIVING SITES AND OTHER SOURCES OF MAN- MADE INTERFERENCE.
31 - C5.1 Sources.
31 - C5.2 Housing.
32 - C5.3 Users of industrial, scientific, medical and similar radio frequency equipment.
33 - C5.4 Electric fencing.
33 - C5.5 Electric railway lines.
33 - C6 DISCUSSION AND CONCLUSIONS.
33 - C6.1 Separation distances.
33 - C6.2 Zones of interest.
33 - C6.3 Separation distances for overhead conductors.
34 - C6.4 Alternative buffer zones.
44 - APPENDIX D - LIST OF ENVIRONMENTAL AUTHORITIES
44 - D1 INTRODUCTION.