Handbook of Frequency Allocations and Spectrum Protection for Scientific Uses (2007) / Chapter Skim
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1 Radio-Frequency Regulation
1 Radio-Frequency Regulation
Pages 3-9
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From page 3... ...
The spectrum is therefore a resource to be protected for future generations, which will develop the technology to detect and decode this information. The science services are protected both by frequency allocations and by some special geographic restrictions on other users, such as the geographic restriction in the National Radio Quiet Zone that includes the National Radio Astronomy Observatory's facility in Green Bank, West Virginia.
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From page 4... ...
Because the radio astronomy and remote sensing sensitivities to interference are so great and because terrain shielding (the use of geographical features to block radio signals of certain frequencies) cannot be employed, it is most difficult to avoid interference from the sidebands of some spaceborne transmitters, even though their central transmitting frequencies may lie outside the radio astronomy bands.
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From page 5... ...
Final discussion and acceptance of International Radio Regulations occurs at World Radiocommunication Conferences, meetings that now take place approximately every 3 to 5 years. The relationship among national and international radio regulatory and advisory bodies with respect to the Radio Astronomy Service and the Earth Exploration-Satellite Service is complicated.
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From page 6... ...
RADIO ASTRONOMY EARTH SCIENCE SCIENTIFIC COMMITTEE ON FREQUENCY ALLOCATIONS FOR MANAGEMENT STRUCTURE RADIO ASTRONOMY AND SPACE SCIENCE (IUCAF) INFORMATION FLOW DELEGATIONS FIGURE 1.1 The diagram depicts the complex relationship among the national and international radio regulatory bodies for the Radio Astronomy Service.
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From page 7... ...
EARTH SCIENCE FREQUENCY ALLOCATIONS FOR MANAGEMENT STRUCTURE RADIO ASTRONOMY AND SPACE SCIENCE (IUCAF) INFORMATION FLOW DELEGATIONS FIGURE 1.2 The diagram depicts the complex relationship among the national and international radio regulatory bodies for the Earth Exploration-Satellite Service.
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From page 8... ...
1.4 EARTH SCIENCE SERVICES The Earth Exploration-Satellite Service was established at WARC-71. Frequencies were allocated for the transmission of environmental data from space to Earth in order to accommodate the needs of satellite programs such as Landsat, which utilize passive sensors operating in the visible part of the electromagnetic spectrum.
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From page 9... ...
The most prominent network supporting near-Earth missions related to both Earth science and space science is the NASA Deep Space Network (DSN) , an international network of antennas operated by the Jet Propulsion Laboratory for NASA.
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