Table of Contents

1 Front Matter; 2 Summary; 3 1 Radio Frequency Regulation for the Scientific Services; 4 2 Scientific Background: Radio Astronomy Service; 5 3 Scientific Background: Earth Exploration Satellite Service; 6 4 Technical Aspects of Protection for the Scientific Use of the Radio Spectrum; 7 5 Science Service Allocations; 8 Appendixes; 9 Appendix A: Definitions of Terms; 10 Appendix B: IEEE Standard Letter Designations for Radar Bands; 11 Appendix C: International Astronomical Union Spectral Lines of Most Importance Below 300 GHz; 12 Appendix D: International Astronomical Union Spectral Lines of Most Importance Between 300 and 1000 GHz; 13 Appendix E: International Astronomical Union Spectral Lines of Most Importance Above 1 THz; 14 Appendix F: Use of 0 dBi for Sidelobe Gain in Calculations of Interference in Radio Astronomy Bands; 15 Appendix G: Selected Rules and Regulations of the Federal Communications Commission; 16 Appendix H: Selected Acronyms and Abbreviations