Steven C. Reising*
Associate Professor and Director
Microwave Systems Laboratory
Colorado State University
[email protected]
*With extensive contributions from other members of the U.S.
National Research Council’s Committee on Radio Frequencies
(CORF) and Spectrum Study Committee
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Committee on Radio Frequencies
(CORF)
The committee:
• Standing Committee of The U.S. National
Academies’ Board on Physics and Astronomy
• Deals with radio-frequency requirements and
interference protection primarily through filing
comments under the aegis of the National
Academy of Sciences in public proceedings of
the FCC and NTIA.
• Coordinates the views of U.S. scientists and acts
as a channel for representing the interests of
U.S. scientists.
• Is supported by NASA and NSF.
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Committee on Radio Frequencies
(CORF)
Membership (10 University, 2 Federal Government)
Jeffrey Piepmeier, Chair, NASA Goddard Space Flight Center
Ana P. Barros, Duke University
Steven W. Ellingson, Virginia Tech
Kenneth Kellermann, National Radio Astronomy Observatory
David G. Long, Brigham Young University
Darren McKague, University of Michigan
James M. Moran, Harvard-Smithsonian Center for Astrophysics
Melinda Piket-May, University of Colorado at Boulder
Alan E.E. Rogers, Massachusetts Institute of
Technology/Haystack Observatory
Steven C. Reising, Colorado State University
Liese van Zee, Indiana University
Lucy Ziurys, University of Arizona
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Submissions to U.S. FCC
• February 5, 2007
In response to FCC NPRM on
Recommendations approved by the Advisory
Committee for WRC-07, CORF discusses
the importance of the scientific observations
performed only in the Earth Exploration
Satellite Service (EESS) bands at 36.0-37.0
GHz and the need to protect such
observations. CORF also urges the
Commission to reinstate a mandatory power
limit in Document WAC/151 in order to
protect that EESS band.
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Submissions to U.S. FCC
• August 13, 2007
In response to FCC NPRM on an amendment
to Part 90 of the FCC’s Rules, CORF notes its
concern about the potential impact of
proposed permanent fixed microwave
operations in the 4940-4990 MHz band on
RAS. CORF recommends that if the FCC
decides to authorize such permanent fixed
operations, it should enact rules requiring
prior frequency coordination of such
operations, in order to protect RAS
observations.
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Submissions to U.S. FCC
• August 16, 2007
In response to FCC NPRM on an amendment to
Parts 2 and 35 of the FCC’s Rules to allocate
spectrum and adopt service rules and
procedures to govern the use of VehicleMounted Earth Stations in certain frequency
bands allocated to the Fixed Satellite Service,
CORF discusses the importance to RAS
observations at 14.47-14.50 GHz and supports
portions of the FCC’s proposal, as modified by
CORF, to protect RAS observations in this
band with coordination requirements.
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Submissions to U.S. FCC
• July 21, 2009
In response to FCC NOI on “A National
Broadband Plan for Our Future,” CORF
addresses issues regarding a proposed
“spectrum inventory” and discusses the need
to recognize and protect the passive scientific
use of the spectrum in connection with any
such inventory. CORF also addresses the
potential impact of cognitive radio
technologies on passive scientific use of the
spectrum.
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Submissions to U.S. FCC
• November 5, 2009
In response to FCC NOI on “Fostering
Innovation and Investment in the Wireless
Communications Market,” and “A National
Broadband Plan for Our Future,” CORF notes
that the initial comments in response to the
NOI did not address the passive scientific use
of the spectrum, and so CORF discusses the
unique value, innovation and vulnerability of
passive scientific use of the spectrum, and the
impact on issues of interference protection
and spectrum efficiency raised in the NOI.
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CORF Colloquium in Santiago,
Chile (1 of 2)
• CORF convened a colloquium in Santiago, Chile on
August 10-11, 2009 to bring together scientists,
engineers, spectrum managers, and civil servants who
are interested in the scientific use of the electromagnetic
spectrum.
• Purpose
– To generate awareness of spectrum protection issues
affecting the region
– To conduct outreach as well as to educate CORF itself on
spectrum management concerns in South and Central
America.
– Instigate interest in a Region 2 RAS & EESS scientific
advisory body
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CORF Colloquium in Santiago,
Chile (2 of 2)
• Presentations from Chile, Argentina, Mexico, and the
U.S.
• CORF members discussed future plans to increase
communication on RAS and EESS spectrum
management topics among scientists in CITEL countries,
particularly Latin American nations.
• Site visit to the ALMA Operations Support Facilities
(2900 m altitude) and Array Operations Site (5000 m
altitude)
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Chair’s Remarks at Fall 2009
Meeting (1 of 2)
This has been a busy year for CORF. This is our third in-person meeting,
counting the Chile symposium.
This is an exciting time for CORF. Looking back over the year, I find there are
three major areas in which we are currently active or need to be active in
the near future:
1. WRC-12 views document: With the delay of the WRC from '11 to '12, we
fortunately have the opportunity for our views document to have an impact.
Most of our meeting this weekend will be dedicated to preparing the
Request-for-Information and preparing the way for the Views Committee to
produce the document.
2. "CORF of the Americas:" The major outcome of the Chile meeting was the
clear interest in a pan-American science advisory committee. This interest
comes in large part from the RAS community, however, there is likely
opportunity for EESS as well. We will be working in the future towards this
goal.
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Chair’s Remarks at Fall 2009
Meeting (2 of 2)
3. Changing how scientific spectrum is used: We are seeing, both from the
soon-to-be-released spectrum study (which we will hear of the outcome
today) and in the review comments of our FCC filings, a need to change our
approach to science spectrum usage and policy. I'm convinced if we keep
the status-quo, some day we will not be able to access, for example, the
1400 MHz allocation. It might take 20, 50, or 100 years, but it is clear that
we need revolutionize our process. No doubt, this process will be lengthy,
but now is the time to act. Because we represent EESS and RAS within one
committee, CORF is in a unique position to take leadership on this within
the U.S.
Jeffrey Piepmeier, Chair
Committee on Radio Frequencies
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Spectrum Management for
Science in the 21st Century
• Published by The National Academies in February 2010.
• Covers EESS, RAS, and new technologies
that may motivate future new approaches to
spectrum management.
• Chapters:
1. Introduction
2. The Earth Exploration-Satellite Service
3. The Radio Astronomy Service
4. Technology and Opportunities for the Mitigation of Radio
Frequency Interference
5. Findings and Recommendations
• PDF is available for free download at
http://www.nap.edu/catalog.php?record_id=12800
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Spectrum Management for Science
in the 21st Century Briefings
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White House Office of Science & Technology Policy
Congressional Staff
FCC
NTIA
NASA
NSF
NOAA
NPOESS (now IPSS)
Most were very successful—FCC & NTIA had a more
tempered reception
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Future CORF Activities
• “Views on the WRC-12” to be released
July 1, 2010
• Visit to FCC staff and commissioners
• Continued fall and spring meetings
– Will likely continue to hold session for
international dialogue at spring meetings
• Next CORF pan-American colloquium
under discussion
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Please Visit the CORF Web Site at its new address:
http://sites.nationalacademies.org/BPA/BPA_048819
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