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The electromagnetic spectrum is a vital part of our environment. Information encoded in the spectrum of radiation arriving at earth from the universe is the means by which we learn about its workings and origin. Radiation collected from the Earth's land, oceans, biosphere, and atmosphere provide us with much of the data needed to better understand this environment. Wise use of the spectrum is necessary if we are to continue these advances in scientific understanding. To help guide this effort, the NSF and NASA asked the NRC to develop a set of principles for fostering effective allocation and protection of spectral bands for scientific research. This handbook contains practical information in this connection including a description of regulatory bodies and issues, a discussion of the relevant scientific background, a list of science spectrum allocations in the United States, and an analysis of spectrum protection issues.
Table of Contents
|1 Radio-Frequency Regulation||3-9|
|2 The Scientific Background||10-37|
|3 Science Service Allocations||38-78|
|4 Technical Aspects of Protection for the Scientific Use of the Radio Spectrum||79-90|
|Appendix A Definitions of Terms||91-95|
|Appendix B Information on Footnotes to Science Services Allocations||96-97|
|Appendix C International Astronomical Union Spectral Lines of Most Importance Below 300 GHz||98-101|
|Appendix D International Astronomical Union Spectral Lines of Most Importance Above 300 GHz||102-103|
|Appendix E Selected Rules and Regulations of the Federal Communications Commission||104-104|
|Appendix F Titles of ITU Recommendations for Radio Astronomy and for Space Applications and Meteorology||105-108|
|Appendix G Earth Science Passive Sensor Needs Above 71 GHz||109-113|
|Appendix H Use of 0 dBi for Sidelobe Gain in Calculations of Interference in Radio Astronomy Bands||114-115|
|Appendix I Selected Acronyms/Abbreviations and Footnote Designations||116-118|
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