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IP: FCC Millimeter wave news part 3 of 3
From: Dave Farber <farber () central cis upenn edu>
Date: Wed, 27 Dec 1995 14:31:05 -0500
Federal Rules Which Overlap, Duplicate or Conflict With These Rules None.
Description, Potential Impact and Number of Small Entities Involved The
technology to permit operation in these high frequency bands is immature at
the present time. It may be some time before this technology reaches a
point under which products can be economically produced so as to achieve any
substantial consumer demand. Thus, no estimate is available on the
potential number of manufacturers that could be impacted from these rules.
We expect that most of the automotive industry will become involved in the
manufacture of transmitters in the 76-77 GHz band. We also expect that
several manufacturers eventually will become involved in the manufacture of
transmitters in the 59-64 GHz band for high speed computer-to-computer
transmission systems. Finally, we recognize that the temporary elimination
of the 76-77 GHz band for amateur use could cause some impact. However, at
the present time the amount of amateur usage in this band is extremely
light. In addition, we propose to offset any perceived harm to the amateur
operators that would occur from the removal of this spectrum by providing
amateur operators with a co- primary status in the band 77.5-78 GHz.
Any Significant Alternatives Minimizing the Impact on Small Entities
Consistent with Stated Objectives None.
----------------
APPENDIX C: RESPONDENTS
Comments in ET Docket No. 94-124
Alcatel Network Systems, Inc. (ANS) American Automobile Manufacturers
Association (AAMA) American Council on Education, American Association of
Community Colleges, California State University, Sacramento, Education
Network of Maine, State of Wisconsin Educational Communications Board, and
University of Wisconsin System (Educational Parties) American Radio Relay
League, Inc. (ARRL) Apple Computer, Inc. (Apple) Association for Promotion
of Millimeter-Wave Development and Utilization (APMDU) AT&T Corp. (AT&T)
Avant-Garde Telecommunications, Inc. CellularVision Clarendon Foundation
(Clarendon) ComTech Associates, Inc. (ComTech) Endgate Technology
Corporation Epsilon Lambda Electronics Corp. (Epsilon Lambda) Fujitsu
Limited Fujitsu Ten Limited GE American Communications, Inc. General Motors
Corporation and GM Hughes Electronics (GM) General Motors Corporation, North
American Operations GHz Equipment Co., Inc. (GEC) Harris Corporation-Farinon
Division (Harris) Hewlett-Packard Co. (HP) Honda R&D Ltd. and Honda R&D
North America, Inc. (Honda) Hughes Aircraft Company, Communications Products
Business Unit (HCP) Hughes Communications Galaxy, Inc. Lockheed Sanders,
Inc. Martin Marietta Corporation (Martin Marietta) Metricom, Inc. (Metricom)
Millimeter Wave Advisory Group (mmWAG) Mitsubishi Electric Corporation
National Aeronautics and Space Administration (NASA) National Academy of
Sciences, Committee on Radio Frequencies of the National Research Council
(CORF) National Telecommunications and Information Administration (NTIA)
Pacific Bell Mobile Service and Telesis Technologies Laboratory (Pacific)
Rand McNally & Company (RMC) Research & Development Center for Radio Systems
(RCR) Rockwell International Corporation (Rockwell) Southwest Microwave,
Inc. Telecommunications Industry Association, Fixed Point-to-Point
Communications Section, Network Equipment Division (TIA) Teledesic
Corporation (Teledesic) Texas Instruments, Inc. Troy State University in
Montgomery TRW Inc. (TRW) UTC VORAD Safety Systems, Inc. (VORAD)
Reply Comments in ET Docket No. 94-124
AEL Industries, Inc. Alcatel Network Systems, Inc. (ANS) American Automobile
Manufacturers Association (AAMA) American Radio Relay League, Inc. (ARRL)
Ameritech Apple Computer, Inc. (Apple) Association for Promotion of
Millimeter-Wave Development and Utilization (APMDU) Association of American
Railroads (AAR) Association of America's Public Television Stations (APTS)
AT&T Corp. (AT&T) Bell Atlantic CellularVision Comtech Associates, Inc.
(ComTech) Digital Microwave Corporation (DMC) Dudley Lab Ford Motor Company
(Ford) GE American Communications, Inc. General Motors Corporation and GM
Hughes Electronics (GM) Harris Corporation-Farinon Division (Harris)
Hewlett-Packard Co. (HP) Hughes Aircraft Company, Communications Products
Business Unit (HCP) Hughes Communications Galaxy, Inc. Hughes Electron
Dynamics Division Intelligent Transportation Society of America (ITS
America) M/A-COM, Inc. mm-Tech, Inc. Millimeter Wave Advisory Group (mmWAG)
Minority Media and Telecommunications Council (MMTC) Motorola Satellite
Communications, Inc. (Motorola) National Aeronautics and Space
Administration (NASA) National Rural Telecommunications Cooperative (NRTC)
Pacific Telesis Enhanced Services, Pacific Bell Mobile Service, and Telesis
Technology Laboratory (Pacific) Telecommunications Industry Association,
Fixed Point-to-Point Communications Section, Network Equipment Division
(TIA) Teledesic Corporation (Teledesic) Texas Instruments, Inc. Titan
Information Systems Corporation Toyota Motor Corporation (Toyota) Troy State
University in Montgomery TRW Inc. (TRW) UK Radiocommunications Agency U.S.
Department of Transportation, Federal Highway Administration (FHA)
Video/Phone Systems, Inc. (Video/Phone) VORAD Safety Systems, Inc. (VORAD)
Western Cooperative for Educational Telecommunications
-------------------
APPENDIX D: FINAL RULES
A. Title 47 of the Code of Federal Regulations, Part 2, is amended as follows:
PART 2 - FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS; GENERAL RULES AND
REGULATIONS
1. The authority citation for Part 2 continues to read as follows:
AUTHORITY: Sec. 4, 302, 303, and 307 of the Communications Act of 1934, as
amended, 47 U.S.C. Sections 154, 302, 303, and 307, unless otherwise noted.
2. Section 2.106, the Table of Frequency Allocations, is amended by
revising columns 1, 4, 5, and 6 for the frequency bands 43.5-47.0 GHz, 59-64
GHz, 76-81 GHz, to read as follows:
Section 2.106 Table of Frequency Allocations.
* * * *
(Text deleted from ASCII version - not usable without formatting)
3. Section 2.997 is amended to read as follows:
Section 2.997 Frequency spectrum to be investigated.
(a) In all of the measurements set forth in Sections 2.991 and 2.993 of
this Part, the spectrum shall be investigated from the lowest radio
frequency signal generated in the equipment, without going below 9 kHz, up
to at least the frequency shown below:
(1) If the equipment operates below 10 GHz: to the tenth harmonic of the
highest fundamental frequency or to 40 GHz, whichever is lower.
(2) If the equipment operates at or above 10 GHz and below 30 GHz: to the
fifth harmonic of the highest fundamental frequency or to 100 GHz, whichever
is lower.
(3) If the equipment operates at or above 30 GHz: to the fifth harmonic
of the highest fundamental frequency or to 200 GHz, whichever is lower.
(b) Particular attention should be paid to harmonics and subharmonics of
the carrier frequency as well as to those frequencies removed from the
carrier by multiples of the oscillator frequency. Radiation at the
frequencies of multiplier stages should also be checked.
(c) The amplitude of spurious emissions which are attenuated more than 20
dB below the permissible value need not be reported.
(d) Unless otherwise specified, measurements above 40 GHz shall be
performed using a minimum resolution bandwidth of 1 MHz.
B. Title 47 of the Code of Federal Regulation, Part 15, is amended as
follows:
PART 15 - RADIO FREQUENCY DEVICES
1. The authority citation for Part 15 continues to read as follows:
AUTHORITY: Secs. 4, 302, 303, 304, 307, and 624A of the Communications Act
of 1934, as amended, 47 U.S.C. Sections 154, 302, 303, 304, 307, and 544A.
2. Section 15.31 is amended by revising paragraph (f)(1) to read as follows:
Section 15.31 Measurement standards.
* * * *
*
(f) * * *
(1) At frequencies equal to or above 30 MHz, measurements may be performed
at a distance other than what is specified provided: measurements are not
made in the near field; and, it can be demonstrated that the signal levels
needed to be measured at the distance employed can be detected by the
measurement equipment. Measurements shall not be performed at a distance
greater than 30 meters unless it can be further demonstrated that
measurements at a distance of 30 meters or less are impractical. When
performing measurements at a distance other than what is specified, the
results shall be extrapolated to the specified distance using one of the
following formulas: for measurements above 30 MHz but below 40 GHz, an
inverse linear-distance extrapolation factor (20 dB/decade); for
measurements above 40 GHz, an inverse linear-distance-squared extrapolation
factor (40 dB/decade).
* * * *
*
3. Section 15.33 is amended by revising paragraph (a) to read as follows:
Section 15.33 Frequency range of radiated measurements.
(a) For an intentional radiator, the spectrum shall be investigated from
the lowest radio frequency signal generated in the device, without going
below 9 kHz, up to at least the frequency shown below:
(1) If the intentional radiator operates below 10 GHz: to the tenth
harmonic of the highest fundamental frequency or to 40 GHz, whichever is lower.
(2) If the intentional radiator operates at or above 10 GHz and below 30
GHz: to the fifth harmonic of the highest fundamental frequency or to 100
GHz, whichever is lower.
(3) If the intentional radiator operates at or above 30 GHz: to the fifth
harmonic of the highest fundamental frequency or to 200 GHz, whichever is lower.
(4) If the intentional radiator contains a digital device, regardless of
whether this digital device controls the functions of the intentional
radiator or the digital device is used for additional control or function
purposes other than to enable the operation of the intentional radiator, the
frequency range shall be investigated up to the range specified in
paragraphs (a)(1)-(a)(3) of this section or the range applicable to the
digital device, as shown in paragraph (b)(1) of this Section, whichever is
the higher frequency range of investigation.
* * * *
*
4. Section 15.35 is amended by revising paragraph (b) to read as follows:
Section 15.35 Measurement detector functions and bandwidth.
* * * *
*
(b) On any frequency or frequencies above 1000 MHz, unless otherwise
stated, the radiated limits shown are based on the use of measurement
instrumentation employing an average detector function. When average
radiated emission measurements are specified in the regulations, including
emission measurements below 1000 MHz, there is also a limit on the radio
frequency emissions, as measured using instrumentation with a peak detector
function, corresponding to 20 dB above the maximum permitted average limit
for the frequency being investigated. Unless otherwise specified,
measurements above 1000 MHz shall be performed using a minimum resolution
bandwidth of 1 MHz. Measurements of AC power line conducted emissions are
performed using a CISPR quasi-peak detector, even for devices for which
average radiated emission measurements are specified.
* * * *
*
5. Section 15.205 is amended by adding a new paragraph (d)(4) to read as
follows:
Section 15.205 Restricted bands of operation.
* * * *
*
(d)(4) Any equipment operated under the provisions of Section 15.253 or
Section 15.255 of this Part.
* * * *
*
6. A new Section 15.253 is added to read as follows:
Section 15.253 Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz.
(a) Operation within the bands 46.7-46.9 GHz and 76.0-77.0 GHz is
restricted to vehicle- mounted field disturbance sensors used as vehicle
radar systems. The transmission of additional information, such as data, is
permitted provided the primary mode of operation is as a vehicle-mounted
field disturbance sensor. Operation under the provisions of this section is
not permitted on aircraft or satellites.
(b) The radiated emission limits within the bands 46.7-46.9 GHz and
76.0-77.0 GHz are as follows:
(1) If the vehicle is not in motion, the power density of any emission
within the bands specified in this section shall not exceed 200 nW/cm2 at a
distance of 3 meters from the exterior surface of the radiating structure.
(2) For forward-looking vehicle-mounted field disturbance sensors, if the
vehicle is in motion the power density of any emission within the bands
specified in this section shall not exceed 60
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