Goto Section: 25.225 | 25.227 | Table of Contents
FCC 25.226
Revised as of October 2, 2015
Goto Year:2014 |
2016
§ 25.226 Blanket Licensing provisions for domestic, U.S. Vehicle-Mounted Earth
Stations (VMESs) receiving in the 10.95-11.2 GHz (space-to-Earth), 11.45-11.7
GHz (space-to-Earth), and 11.7-12.2 GHz (space-to-Earth) bands and transmitting
in the 14.0-14.5 GHz (Earth-to-space) band, operating with Geostationary
Satellites in the Fixed-Satellite Service.
(a) The following ongoing requirements govern all VMES licensees and
operations in the 10.95-11.2 GHz (space-to-Earth), 11.45-11.7 GHz
(space-to-Earth), 11.7-12.2 GHz (space-to-Earth) and 14.0-14.5 GHz
(Earth-to-space) bands receiving from and transmitting to geostationary
orbit satellites in the Fixed-Satellite Service. VMES licensees shall comply
with the requirements in either paragraph (a)(1), (a)(2) or (a)(3) of this
section and all of the requirements set forth in paragraphs (a)(4) through
(a)(9) and paragraphs (c), (d), and (e) of this section. Paragraph (b) of
this section identifies items that shall be included in the application for
VMES operations to demonstrate that these ongoing requirements will be met.
(1) The following requirements shall apply to a VMES that uses transmitters
with off-axis EIRP spectral-densities lower than or equal to the levels in
paragraph (a)(1)(i) of this section. A VMES, or VMES system, operating under
this section shall provide a detailed demonstration as described in
paragraph (b)(1) of this section. The VMES transmitter also shall comply
with the antenna pointing and cessation of emission requirements in
paragraphs (a)(1)(ii) and (a)(1)(iii) of this section.
(i) A VMES system shall not exceed the off-axis EIRP spectral-density limits
and conditions defined in paragraphs (a)(1)(i)(A) through (D) of this
section.
(A) The off-axis EIRP spectral-density emitted from the VMES, in the plane
of the geostationary satellite orbit (GSO) as it appears at the particular
earth station location, shall not exceed the following values:
15-10log(N)-25logθ dBW/4kHz for 1.5° ≤θ ≤7°
−6 −10log(N) dBW/4kHz for 7° <θ ≤9.2°
18 −10log(N)-25logθ dBW/4kHz for 9.2° <θ ≤48°
−24 −10log(N) dBW/4kHz for 48° <θ ≤85°
−14 −10log(N) dBW/4kHz for 85° <θ ≤180°
where theta (θ) is the angle in degrees from the line connecting the focal
point of the antenna to the orbital location of the target satellite, the
plane of the GSO is determined by the focal point of the antenna and the
line tangent to the arc of the GSO at the orbital location of the target
satellite. For VMES networks using frequency division multiple access (FDMA)
or time division multiple access (TDMA) techniques, N is equal to one. For
VMES networks using multiple co-frequency transmitters that have the same
EIRP, N is the maximum expected number of co-frequency simultaneously
transmitting VMES earth stations in the same satellite receiving beam. For
the purpose of this section, the peak EIRP of an individual sidelobe shall
not exceed the envelope defined above for θ between 1.5° and 7.0°. For θ
greater than 7.0°, the envelope shall be exceeded by no more than 10% of the
sidelobes, provided no individual sidelobe exceeds the envelope given above
by more than 3 dB.
(B) In all directions other than along the GSO, the off-axis EIRP
spectral-density for co-polarized signals emitted from the VMES shall not
exceed the following values:
18−10log(N)−25logθ dBW/4kHz for 3.0° ≤θ ≤48°
−24−10log(N) dBW/4kHz for 48° <θ ≤85°
−14−10log(N) dBW/4kHz for 85° <θ ≤180°
where θ and N are defined in paragraph (a)(1)(i)(A) of this section. This
off-axis EIRP spectral-density applies in any plane that includes the line
connecting the focal point of the antenna to the orbital location of the
target satellite with the exception of the plane of the GSO as defined in
paragraph (a)(1)(i)(A) of this section. For the purpose of this subsection,
the envelope shall be exceeded by no more than 10% of the sidelobes provided
no individual sidelobe exceeds the gain envelope given above by more than 6
dB. The region of the main reflector spillover energy is to be interpreted
as a single lobe and shall not exceed the envelope by more than 6 dB.
(C) In all directions, the off-axis EIRP spectral-density for
cross-polarized signals emitted from the VMES shall not exceed the following
values:
5−10log(N)−25logθ dBW/4kHz for 1.8° ≤θ ≤7.0°
−16−10log(N) dBW/4kHz for 7.0° <θ ≤9.2°
where θ and N are defined as set forth in paragraph (a)(1)(i)(A) of this
section. This EIRP spectral-density applies in any plane that includes the
line connecting the focal point of the antenna to the target satellite.
(D) For non-circular VMES antennas, the major axis of the antenna shall be
aligned with the tangent to the arc of the GSO at the orbital location of
the target satellite, to the extent required to meet the specified off-axis
EIRP spectral-density criteria.
(ii) Except for VMES systems operating under paragraph (a)(3), each VMES
transmitter must meet one of the following antenna pointing error
requirements:
(A) Each VMES transmitter shall maintain a pointing error of less than or
equal to 0.2° between the orbital location of the target satellite and the
axis of the main lobe of the VMES antenna, or
(B) Each VMES transmitter shall declare a maximum antenna pointing error
that may be greater than 0.2° provided that the VMES does not exceed the
off-axis EIRP spectral-density limits in paragraph (a)(1)(i) of this
section, taking into account the antenna pointing error.
(iii) Except for VMES systems operating under paragraph (a)(3), each VMES
transmitter must meet of one the following cessation of emission
requirements:
(A) For VMESs operating under paragraph (a)(1)(ii)(A) of this section, all
emissions from the VMES shall automatically cease within 100 milliseconds if
the angle between the orbital location of the target satellite and the axis
of the main lobe of the VMES antenna exceeds 0.5°, and transmission shall
not resume until such angle is less than or equal to 0.2°, or
(B) For VMES transmitters operating under paragraph (a)(1)(ii)(B) of this
section, all emissions from the VMES shall automatically cease within 100
milliseconds if the angle between the orbital location of the target
satellite and the axis of the main lobe of the VMES antenna exceeds the
declared maximum antenna pointing error and shall not resume transmissions
until such angle is less than or equal to the declared maximum antenna
pointing error.
(2) The following requirements shall apply to a VMES that uses off-axis EIRP
spectral-densities in excess of the levels in paragraph (a)(1)(i) of this
section. A VMES, or VMES system, operating under this subsection shall file
certifications and provide a detailed demonstration as described in
paragraph (b)(2) of this section.
(i) The VMES shall transmit only to the target satellite system(s) referred
to in the certifications required by paragraph (b)(2) of this section.
(ii) If a good faith agreement cannot be reached between the target
satellite operator and the operator of a future satellite that is located
within 6 degrees longitude of the target satellite, the VMES operator shall
accept the power-density levels that would accommodate that adjacent
satellite.
(iii) The VMES shall operate in accordance with the off-axis EIRP
spectral-densities that the VMES supplied to the target satellite operator
in order to obtain the certifications listed in paragraph (b)(2) of this
section. The VMES shall automatically cease emissions within 100
milliseconds if the VMES transmitter exceeds the off-axis EIRP
spectral-densities supplied to the target satellite operator.
(3) The following requirements shall apply to a VMES system that uses
variable power-density control of individual simultaneously transmitting
co-frequency VMES earth stations in the same satellite receiving beam. A
VMES system operating under this subsection shall file certifications and
provide a detailed demonstration as described in paragraph (b)(3) of this
section.
(i) The effective aggregate EIRP-density from all terminals shall be at
least 1 dB below the off-axis EIRP-density limits defined in paragraph
(a)(1)(i) of this section, with the value of N = 1. In this context the term
“effective” means that the resultant co-polarized and cross-polarized
EIRP-density experienced by any GSO or non-GSO satellite shall not exceed
that produced by a single transmitter operating 1 dB below the limits
defined in paragraph (a)(1)(i) of this section. The individual VMES
transmitter shall automatically cease emissions within 100 milliseconds if
the VMES transmitter exceeds the off-axis EIRP-density limits minus 1 dB
specified above. If one or more VMES transmitters causes the aggregate
off-axis EIRP-densities to exceed the off-axis EIRP-density limits minus 1
dB specified above, then the transmitter or transmitters shall cease or
reduce emissions within 100 milliseconds of receiving a command from the
system's network control and monitoring center. A VMES system operating
under this subsection shall provide a detailed demonstration as described in
paragraph (b)(3)(i) of this section.
(ii) The following requirements shall apply to a VMES that uses off-axis
EIRP spectral-densities in excess of the levels in paragraph (a)(3)(i) of
this section. A VMES system operating under this section shall file
certifications and provide a detailed demonstration as described in
paragraphs (b)(3)(ii) and (b)(3)(iii) of this section.
(A) If a good faith agreement cannot be reached between the target satellite
operator and the operator of a future satellite that is located within 6
degrees longitude of the target satellite, the VMES shall operate at an
EIRP-density defined in paragraph (a)(3)(i) of this section.
(B) The VMES shall operate in accordance with the off-axis EIRP
spectral-densities that the VMES supplied to the target satellite operator
in order to obtain the certifications listed in paragraph (b)(3)(ii) of this
section. The individual VMES terminals shall automatically cease emissions
within 100 milliseconds if the VMES transmitter exceeds the off-axis EIRP
spectral-densities supplied to the target satellite operator. The overall
system shall be capable of shutting off an individual transmitter or the
entire system if the aggregate off-axis EIRP spectral-densities exceed those
supplied to the target satellite operator.
(C) The VMES shall transmit only to the target satellite system(s) referred
to in the certifications required by paragraph (b)(3) of this section.
(4) An applicant filing to operate a VMES terminal or system and planning to
use a contention protocol shall certify that its contention protocol use
will be reasonable.
(5) There shall be a point of contact in the United States, with phone
number and address, available 24 hours a day, seven days a week, with
authority and ability to cease all emissions from the VMESs.
(6) For each VMES transmitter, a record of the vehicle location (i.e.,
latitude/longitude), transmit frequency, channel bandwidth and satellite
used shall be time annotated and maintained for a period of not less than
one (1) year. Records shall be recorded at time intervals no greater than
every five (5) minutes while the VMES is transmitting. The VMES operator
shall make this data available upon request to a coordinator, fixed system
operator, Fixed-Satellite Service system operator, NTIA, or the Commission
within 24 hours of the request.
(7) In the 10.95-11.2 GHz (space-to-Earth) and 11.45-11.7 GHz
(space-to-Earth) frequency bands VMESs shall not claim protection from
interference from any authorized terrestrial stations to which frequencies
are either already assigned, or may be assigned in the future.
(8) A VMES terminal receiving in the 10.95-11.2 GHz (space-to-Earth),
11.45-11.7 GHz (space-to-Earth) and 11.7-12.2 GHz (space-to-Earth) bands
shall receive protection from interference caused by space stations other
than the target space station only to the degree to which harmful
interference would not be expected to be caused to an earth station
employing an antenna conforming to the referenced patterns defined in
§ 25.209(a) and (b) and stationary at the location at which any interference
occurred.
(9) Each VMES terminal shall automatically cease transmitting upon the loss
of synchronization or within 5 seconds upon loss of reception of the
satellite downlink signal, whichever is the shorter timeframe.
(b) Applications for VMES operation in the 14.0-14.5 GHz (Earth-to-space)
band to GSO satellites in the Fixed-Satellite Service shall include, in
addition to the particulars of operation identified on Form 312, and
associated Schedule B, the applicable technical demonstrations in paragraphs
(b)(1), (2) or (3) of this section and the documentation identified in
paragraphs (b)(4) through (8) of this section.
(1) A VMES applicant proposing to implement a transmitter under paragraph
(a)(1) of this section shall demonstrate that the transmitter meets the
off-axis EIRP spectral-density limits contained in paragraph (a)(1)(i) of
this section. To provide this demonstration, the application shall include
the tables described in paragraph (b)(1)(i) of this section or the
certification described in paragraph (b)(1)(ii) of this section. The VMES
applicant also shall provide the value N described in paragraph (a)(1)(i)(A)
of this section. A VMES applicant proposing to implement a transmitter under
paragraph (a)(1)(ii)(A) of this section shall provide the certifications
identified in paragraph (b)(1)(iii) of this section. A VMES applicant
proposing to implement a transmitter under paragraph (a)(1)(ii)(B) of this
section shall provide the demonstrations identified in paragraph (b)(1)(iv)
of this section.
(i) Any VMES applicant filing an application pursuant to paragraph (a)(1) of
this section shall file three tables showing the off-axis EIRP density level
of the proposed earth station antenna in the direction of the plane of the
GSO; the co-polarized EIRP density in the elevation plane, that is, the
plane perpendicular to the plane of the GSO; and cross polarized EIRP
density. Each table shall provide the EIRP density level at increments of
0.1° for angles between 0° and 10° off-axis, and at increments of 5° for
angles between 10° and 180° off-axis.
(A) For purposes of the off-axis EIRP density table in the plane of the GSO,
the off-axis angle is the angle in degrees from the line connecting the
focal point of the antenna to the orbital location of the target satellite,
and the plane of the GSO is determined by the focal point of the antenna and
the line tangent to the arc of the GSO at the orbital position of the target
satellite.
(B) For purposes of the off-axis co-polarized EIRP density table in the
elevation plane, the off-axis angle is the angle in degrees from the line
connecting the focal point of the antenna to the orbital location of the
target satellite, and the elevation plane is defined as the plane
perpendicular to the plane of the GSO defined in paragraph (b)(1)(i)(A) of
this section.
(C) For purposes of the cross-polarized EIRP density table, the off-axis
angle is the angle in degrees from the line connecting the focal point of
the antenna to the orbital location of the target satellite and the plane of
the GSO as defined in paragraph (b)(1)(i)(A) of this section will be used.
(ii) A VMES applicant shall include a certification, in Schedule B, that the
VMES antenna conforms to the gain pattern criteria of § 25.209(a) and (b),
that, combined with the maximum input power density calculated from the EIRP
density less the antenna gain, which is entered in Schedule B, demonstrates
that the off-axis EIRP spectral density envelope set forth in paragraphs
(a)(1)(i)(A) through (C) of this section will be met under the assumption
that the antenna is pointed at the target satellite. If an antenna proposed
for use by the applicant does not comply with the antenna performance
standards contained in § 25.209(a) and (b), the applicant must provide, as an
exhibit to its application, antenna gain test plots pursuant to
§ 25.132(b)(3).
(iii) A VMES applicant proposing to implement a transmitter under paragraph
(a)(1)(ii)(A) of this section shall provide a certification from the
equipment manufacturer stating that the antenna tracking system will
maintain a pointing error of less than or equal to 0.2° between the orbital
location of the target satellite and the axis of the main lobe of the VMES
antenna and that the antenna tracking system is capable of ceasing emissions
within 100 milliseconds if the angle between the orbital location of the
target satellite and the axis of the main lobe of the VMES antenna exceeds
0.5°.
(iv) A VMES applicant proposing to implement a transmitter under paragraph
(a)(1)(ii)(B) of this section shall:
(A) Declare, in its application, a maximum antenna pointing error and
demonstrate that the maximum antenna pointing error can be achieved without
exceeding the off-axis EIRP spectral-density limits in paragraph (a)(1)(i)
of this section; and
(B) Demonstrate that the VMES transmitter can detect if the transmitter
exceeds the declared maximum antenna pointing error and can cease
transmission within 100 milliseconds if the angle between the orbital
location of the target satellite and the axis of the main lobe of the VMES
antenna exceeds the declared maximum antenna pointing error, and will not
resume transmissions until the angle between the orbital location of the
target satellite and the axis of the main lobe of the VMES antenna is less
than or equal to the declared maximum antenna pointing error.
(2) A VMES applicant proposing to implement a transmitter under paragraph
(a)(2) of this section and using off-axis EIRP spectral-densities in excess
of the levels in paragraph (a)(1)(i) of this section shall provide the
following certifications and demonstration as exhibits to its earth station
application:
(i) A statement from the target satellite operator certifying that the
proposed operation of the VMES has the potential to create harmful
interference to satellite networks adjacent to the target satellite(s) that
may be unacceptable.
(ii) A statement from the target satellite operator certifying that the
power density levels that the VMES applicant provided to the target
satellite operator are consistent with the existing coordination agreements
between its satellite(s) and the adjacent satellite systems within 6° of
orbital separation from its satellite(s).
(iii) A statement from the target satellite operator certifying that it will
include the power-density levels of the VMES applicant in all future
coordination agreements.
(iv) A demonstration from the VMES operator that the VMES system is capable
of detecting and automatically ceasing emissions within 100 milliseconds
when the transmitter exceeds the off-axis EIRP spectral-densities supplied
to the target satellite operator.
(3) A VMES applicant proposing to implement VMES system under paragraph
(a)(3) of this section and using variable power-density control of
individual simultaneously transmitting co-frequency VMES earth stations in
the same satellite receiving beam shall provide the following certifications
and demonstration as exhibits to its earth station application:
(i) The applicant shall make a detailed showing of the measures it intends
to employ to maintain the effective aggregate EIRP-density from all
simultaneously transmitting co-frequency terminals operating with the same
satellite transponder at least 1 dB below the off-axis EIRP-density limits
defined in paragraphs (a)(1)(i)(A) through (C) of this section. In this
context the term “effective” means that the resultant co-polarized and
cross-polarized EIRP-density experienced by any GSO or non-GSO satellite
shall not exceed that produced by a single VMES transmitter operating at 1
dB below the limits defined in paragraphs (a)(1)(i)(A) through (C) of this
section. The applicant also must demonstrate that an individual transmitter
and the entire VMES system is capable of automatically ceasing emissions
within 100 milliseconds if the aggregate off-axis EIRP-densities exceed the
off-axis EIRP-density limits minus 1 dB, as set forth in paragraph (a)(3)(i)
of this section. The International Bureau will place this showing on public
notice along with the application.
(ii) An applicant proposing to implement a VMES under paragraph (a)(3)(ii)
of this section that uses off-axis EIRP spectral-densities in excess of the
levels in paragraph (a)(3)(i) of this section shall provide the following
certifications, demonstration and list of satellites as exhibits to its
earth station application:
(A) A detailed showing of the measures the applicant intends to employ to
maintain the effective aggregate EIRP-density from all simultaneously
transmitting co-frequency terminals operating with the same satellite
transponder at the EIRP-density limits supplied to the target satellite
operator. The International Bureau will place this showing on public notice
along with the application.
(B) A statement from the target satellite operator certifying that the
proposed operation of the VMES has the potential to create harmful
interference to satellite networks adjacent to the target satellite(s) that
may be unacceptable.
(C) A statement from the target satellite operator certifying that the
aggregate power density levels that the VMES applicant provided to the
target satellite operator are consistent with the existing coordination
agreements between its satellite(s) and the adjacent satellite systems
within 6° of orbital separation from its satellite(s).
(D) A statement from the target satellite operator certifying that it will
include the aggregate power-density levels of the VMES applicant in all
future coordination agreements.
(E) A demonstration from the VMES operator that the VMES system is capable
of detecting and automatically ceasing emissions within 100 milliseconds
when an individual transmitter exceeds the off-axis EIRP spectral-densities
supplied to the target satellite operator and that the overall system is
capable of shutting off an individual transmitter or the entire system if
the aggregate off-axis EIRP spectral-densities exceed those supplied to the
target satellite operator.
(F) An identification of the specific satellite or satellites with which the
VMES system will operate.
(iii) The applicant shall acknowledge that it will maintain sufficient
statistical and technical information on the individual terminals and
overall system operation to file a detailed report, one year after license
issuance, describing the effective aggregate EIRP-density levels resulting
from the operation of the VMES system.
(4) There shall be an exhibit included with the application describing the
geographic area(s) in which the VMESs will operate.
(5) Any VMES applicant filing for a VMES terminal or system and planning to
use a contention protocol shall include in its application a certification
that will comply with the requirements of paragraph (a)(4) of this section.
(6) The point of contact referred to in paragraph (a)(5) of this section
shall be included in the application.
(7) Any VMES applicant filing for a VMES terminal or system shall include in
its application a certification that will comply with the requirements of
paragraph (a)(6) of this section.
(8) All VMES applicants shall submit a radio frequency hazard analysis
determining via calculation, simulation, or field measurement whether VMES
terminals, or classes of terminals, will produce power densities that will
exceed the Commission's radio frequency exposure criteria. VMES applicants
with VMES terminals that will exceed the guidelines in § 1.1310 of this
chapter for radio frequency radiation exposure shall provide, with their
environmental assessment, a plan for mitigation of radiation exposure to the
extent required to meet those guidelines. All VMES licensees shall ensure
installation of VMES terminals on vehicles by qualified installers who have
an understanding of the antenna's radiation environment and the measures
best suited to maximize protection of the general public and persons
operating the vehicle and equipment. A VMES terminal exhibiting radiation
exposure levels exceeding 1.0 mW/cm2 in accessible areas, such as at the
exterior surface of the radome, shall have a label attached to the surface
of the terminal warning about the radiation hazard and shall include thereon
a diagram showing the regions around the terminal where the radiation levels
could exceed 1.0 mW/cm2. All VMES applicants shall demonstrate that their
VMES terminals are capable of automatically ceasing transmissions upon the
loss of synchronization or within 5 seconds upon loss of reception of the
satellite downlink signal, whichever is the shorter timeframe.
(9) Except for VMES systems operating pursuant to paragraphs (a)(2) and
(a)(3)(ii) of this section, VMES systems authorized pursuant to this section
shall be eligible for a license that lists Permitted List as an authorized
point of communication.
(c)(1) Operations of VMESs in the 14.0-14.2 GHz (Earth-to-space) frequency
band within 125 km of the NASA TDRSS facilities on Guam (latitude
13°36′55″ N, longitude 144°51′22″ E) or White Sands, New Mexico (latitude
32°20′59″ N, longitude 106°36′31″ W and latitude 32°32′40″ N, longitude
106°36′48″ W) are subject to coordination with the National Aeronautics and
Space Administration (NASA) through the National Telecommunications and
Information Administration (NTIA) Interdepartment Radio Advisory Committee
(IRAC). Licensees shall notify the International Bureau once they have
completed coordination. Upon receipt of such notification from a licensee,
the International Bureau will issue a public notice stating that the
licensee may commence operations within the coordination zone in 30 days if
no party has opposed the operations.
(2) When NTIA seeks to provide similar protection to future TDRSS sites that
have been coordinated through the IRAC Frequency Assignment Subcommittee
process, NTIA will notify the Commission's International Bureau that the
site is nearing operational status. Upon public notice from the
International Bureau, all Ku-band VMES licensees shall cease operations in
the 14.0-14.2 GHz band within 125 km of the new TDRSS site until the
licensees complete coordination with NTIA/IRAC for the new TDRSS facility.
Licensees shall notify the International Bureau once they have completed
coordination for the new TDRSS site. Upon receipt of such notification from
a licensee, the International Bureau will issue a public notice stating that
the licensee may commence operations within the coordination zone in 30 days
if no party has opposed the operations. The VMES licensee then will be
permitted to commence operations in the 14.0-14.2 GHz band within 125 km of
the new TDRSS site, subject to any operational constraints developed in the
coordination process.
(d)(1) Operations of VMESs in the 14.47-14.5 GHz (Earth-to-space) frequency
band in the vicinity of radio astronomy service (RAS) observatories
observing in the 14.47-14.5 GHz band are subject to coordination with the
National Science Foundation (NSF). The appropriate NSF contact point to
initiate coordination is Electromagnetic Spectrum Manager, NSF, 4201 Wilson
Blvd., Suite 1045, Arlington VA 22203, fax 703-292-9034, e-mail esm@nsf.gov.
Licensees shall notify the International Bureau once they have completed
coordination. Upon receipt of the coordination agreement from a licensee,
the International Bureau will issue a public notice stating that the
licensee may commence operations within the coordination zone in 30 days if
no party has opposed the operations.
(2) Table 1 provides a list of each applicable RAS site, its location, and
the applicable coordination zone.
Table 1—Applicable Radio Astronomy Service (RAS) Facilities and Associated
Coordination Distances
Observatory Latitude (north) Longitude (west) Radius (km) of coordination
zone
Arecibo, Observatory, Arecibo, PR 18°20′37″ 66°45′11″ Island of Puerto Rico.
Green Bank, WV 38°25′59″ 79°50′23″ 160.
Very Large Array, near Socorro, NM 34°04′44″ 107°37′06″ 160.
Pisgah Astronomical Research Institute, Rosman, NC 35°11′59″ 82°52′19″ 160.
U of Michigan Radio Astronomy Observatory, Stinchfield Woods, MI 42°23′56″
83°56′11″ 160.
Very Long Baseline Array (VLBA) stations:
Owens Valley, CA 37°13′54″ 118°16′37″ 160*.
Mauna Kea, HI 19°48′05″ 155°27′20″ 50.
Brewster, WA 48°07′52″ 119°41′00″
Kitt Peak, AZ 31°57′23″ 111°36′45″
Pie Town, NM 34°18′04″ 108°07′09″
Los Alamos, NM 35°46′30″ 106°14′44″
Fort Davis, TX 30°38′06″ 103°56′41″
North Liberty, IA 41°46′17″ 91°34′27″
Hancock, NH 42°56′01″ 71°59′12″
St. Croix, VI 17°45′24″ 64°35′01″
*Owens Valley, CA operates both a VLBA station and single-dish telescopes.
(3) When NTIA seeks to provide similar protection to future RAS sites that
have been coordinated through the IRAC Frequency Assignment Subcommittee
process, NTIA will notify the Commission's International Bureau that the
site is nearing operational status. Upon public notice from the
International Bureau, all Ku-band VMES licensees shall cease operations in
the 14.47-14.5 GHz band within the relevant geographic zone (160 kms for
single-dish radio observatories and Very Large Array antenna systems and 50
kms for Very Long Baseline Array antenna systems) of the new RAS site until
the licensees complete coordination for the new RAS facility. Licensees
shall notify the International Bureau once they have completed coordination
for the new RAS site and shall submit the coordination agreement to the
Commission. Upon receipt of such notification from a licensee, the
International Bureau will issue a public notice stating that the licensee
may commence operations within the coordination zone in 30 days if no party
opposed the operations. The VMES licensee then will be permitted to commence
operations in the 14.47-14.5 GHz band within the relevant coordination
distance around the new RAS site, subject to any operational constraints
developed in the coordination process.
(e) VMES licensees shall use Global Positioning Satellite-related or other
similar position location technology to ensure compliance with paragraphs
(c) and (d) of this section.
[ 74 FR 57099 , Nov. 4, 2009, as amended at 78 FR 8429 , Feb. 6, 2013; 78 FR 9604 , Feb. 11, 2013; 79 FR 8324 , Feb. 12, 2014]
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Goto Year: 2014 |
2016
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