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Pages 1-5

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From page 1...
... The radio spectrum is also being used by radiating, or "active," services, ranging from aircraft radar to rapidly expanding consumer services such as cellular telephony and wireless Internet. These valuable active services transmit radio waves and thereby potentially interfere with the receive-only, or "passive," scientific services, which do not radiate.
From page 2...
... But today, the current regulatory regime is straining to enable the capabilities and meet the needs of the various com munities of users. A new path is needed to preserve access to the radio spectrum, in which important scientific discoveries are made and civilian and government remote sensing operations are conducted, while allowing for growth that serves an increasingly mobile society.
From page 3...
... are indispensable for collecting information associated with specific astronomical and environmental phenomena. Often the same bands are equally indispensable for both passive Earth remote sensing and radio astronomy, and the passive nature of both services enables them to share the spectrum productively.
From page 4...
... To this end, NSF and NASA should support research and development for unilateral1 RFI mitigation technology in both EESS and RAS systems. NASA, NOAA, and the Department of Defense should require that appropriate RFI analyses and tests and practical RFI mitigation techniques be applied to all future satellite systems carrying passive microwave sensors.
From page 5...
... Recommendation: The Office of Science and Technology Policy should create a new, permanent, representative technology advisory body to identify technical and regulatory opportunities for improving spectrum sharing among all active and passive users, both government and nongovernment. In one sense, spectrum used for passive purposes, including Earth remote sensing and radio astronomy, can be likened to parkland preserved for public use.

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