Potential Interference
From Broadband Over Power Line (BPL) Systems To Federal
Government Radiocommunication Systems at 1.7 - 80 MHz
Phase
2 Study
VOLUME
I - TECHNICAL REPORT (complete)
(Acrobat PDF 1,593 Kb)
TABLE
OF CONTENTS
Acknowledgements
Preface
Executive Summary
Table of Contents
Glossary
SECTION 1 INTRODUCTION
1.1 Background
1.2 Objectives
1.3 Approach
SECTION
2 PART 15 MEASUREMENT GUIDELINES
2.1 Introduction
2.2 Power Line Models Used in the Analysis
2.3 Measurement Antenna Height
2.3.1 Height Corresponding to Peak Field Strength
2.3.2 Peak Electric Field Strength at the Compliance
Measurement
Heights
2.3.3 Antenna Measurement Height Correction Factor above
30 MHz
2.4 Measurement Distance Along the Power Line
2.5 Measurement Distance Extrapolation
2.5.1 New Approach for Distance Extrapolation
2.5.2 Calculated Electric Field Strength Decay for Distance
Extrapolation
2.6 Use of Loop Antenna Below 30 MHz
2.7 Measurement Antenna Polarization
2.8 Guidelines for Choosing Representative Systems
2.9 Summary
SECTION
3 SPECIAL PROVISIONS FOR PREVENTION OF INTERFERENCE
FROM BPL SYSTEMS
3.1 Introduction
3.1.1 Background
3.2 Potential Victim Receivers
3.2.1 Communications Receivers
3.2.2 Radar Receivers
3.2.3 Radioastronomy Receivers
3.3 Potential Sources of Interference
3.3.1 Overhead Power Line Model
3.3.2 Underground Power Line Model
3.3.3 Part 15 Scaling of Power Line Models
3.4 Analytical Approach
3.4.1 Communications Receivers
3.4.2 Radar Receivers
3.4.3 Radioastronomy Receivers
3.5 Simulation Results
3.5.1 Communications Receivers
3.5.2 Radar Receivers
3.5.3 Radioastronomy Receivers
3.6 Summary
SECTION
4 CASE STUDY OF POTENTIAL INTERFERENCE USING
ADOPTED BPL RULES
4.1 Introduction
4.2 Methodology
4.2.1 Structure Injection Points
4.2.2 Simulation Frequencies
4.2.3 Part 15 Scaling
4.2.4 Simulation of Potential Interference
4.3 Results
4.3.1 Receiver Noise Floor Increase Along the Power Line
4.3.2 Power Flux Density Away from the Power Line
4.4 Summary
SECTION 5 IONOSPHERIC
PROPAGATION AND AGGREGATION OF
BPL EMISSIONS
5.1 Introduction
5.2 Analytical Modeling of Sky Wave Propagation
5.2.1 Background
5.2.2 Approach
5.3 Simulation Characteristics
5.4 Simulation Results
5.4.1 Comparison of Overhead and Underground Analysis
Results
5.4.2 Maps of Ionospheric Aggregation
5.5 Summary
SECTION 6 SUMMARY
OF RESULTS
6.1 Introduction
6.2 Phase 2 Analyses
6.2.1 Part 15 Rules and Measurement Guidelines
6.2.2 Special Protection Provisions
6.2.3 Case Study Applying the Access BPL Measurement
Guidelines
6.2.4 Aggregation of Emissions via Ionospheric Propagation
6.3 Conclusion
VOLUME II
- TECHNICAL APPENDICES (complete)
(Acrobat PDF 1,201 Kb)
TABLE
OF CONTENTS (Acrobat
PDF 1,217 Kb)
GLOSSARY
APPENDIX A ANTENNA
MEASUREMENT HEIGHT
A.1 Introduction
A.2 Height of Peak Field Strength
A.3 Compliance Measurement Height for Operation Between
1.7 –
30 MHz
A.4 Compliance Measurement Height for Operation at 30
MHz and
Above
A.5 Height Correction Factor Above 30 MHz
APPENDIX B MEASUREMENT
DISTANCE ALONG THE POWER LINE
B.1 Introduction
B.2 Simulation Results
APPENDIX C MEASUREMENT
DISTANCE EXTRAPOLATION
C.1 Introduction
C.2 BPL Field Strength Simulation Results
C.2.1 Extrapolated Field Strength Levels Meeting the
Part 15 Limits
C.2.2 Simulation Results
APPENDIX D SPECIAL PROTECTION PROVISIONS
D.1 Excluded Frequency Bands
D.2 Exclusion Zones
D.2.1 Coast Stations
D.2.2 Radioastronomy Observatories
D.3 Consultation Areas
Numerical Electric Code (NEC) input parameters
1) Power
Line Models (Table 2-1) (Acrobat PDF 431 Kb)
2) Underground
Model (Acrobat
PDF 236 Kb)
3) Complex
Power Line Model (Acrobat
PDF 493 Kb)
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