FCC 27.1134 Revised as of October 1, 2005
Goto Year:2004 |
2006
Sec. 27.1134 Protection of Federal Government operations.
(a) Protection of Department of Defense operations in the 1710–1755 MHz
band. The Department of Defense (DoD) operates communications systems in the
1710–1755 MHz band at 16 protected facilities, nationwide. AWS licensees
must accept any interference received from these facilities and must protect
the facilities from interference. AWS licensees shall protect the facilities
from interference by restricting the operation of their base and fixed
stations from any locations that could potentially permit AWS mobile, fixed,
and portable stations transmitting in the 1710–1755 MHz band to cause
interference to government operations within the radii of operation of the
16 facilities (the radii of operation of each facility is indicated in the
third column of Table 1 immediately following paragraph (a)(3) of this
section). In addition, AWS licensees shall be required to coordinate any
operations that could permit mobile, fixed, and portable stations to operate
in the specified areas of the 16 facilities, as defined in paragraph (a)(3)
of this section. Protection of these facilities in this manner shall take
place under the following conditions:
(1) At the Yuma, Arizona and Cherry Point, North Carolina facilities, all
operations shall be protected indefinitely.
(2) At the remaining 14 facilities, airborne and military test range
operations shall be protected until such time as these systems are relocated
to other spectrum, and precision guided munitions (PGM) operations shall be
protected until such time as these systems are relocated to other spectrum
or until PGM inventory at each facility is exhausted, whichever occurs
first.
(3) AWS licensees whose transmit operations in the 1710–1755 MHz band
consist of fixed or mobile operations with nominal transmit EIRP values of
100 mW or less and antenna heights of 1.6 meters above ground or less shall
coordinate their services around the 16 sites at the distance specified in
row a. of Table 2. AWS licensees whose transmit operations in the 1710–1755
MHz band consist of fixed or mobile operations with nominal transmit EIRP
values of 1 W or less and antenna heights of 10 meters above ground or less
shall coordinate their services around the 16 sites at the distance
specified in row b. of Table 2. These coordination distances shall be
measured from the edge of the operational distances indicated in the third
column of Table 1, and coordination with each affected DoD facility shall be
accomplished through the Commander of the facility.
Table 1._Protected Department of Defense Facilities
------------------------------------------------------------------------
Radius of
Location Coordinates operation
------------------------------------------------------------------------
Cherry Point, NC............. 34 °58[min] N 100
076 °56[min] W
Yuma, AZ..................... 32 °32[min] N 120
113 °58[min] W
China Lake, CA............... 35 °41[min] N 120
117 °41[min] W
Eglin AFB, FL................ 30 °29[min] N 120
086 °31[min] W
Pacific Missile Test Range/ 34 °07[min] N 80
Point Mugu, CA. 119 °30[min] W
Nellis AFB, NV............... 36 °14[min] N 160
115 °02[min] W
Hill AFB, UT................. 41 °07[min] N 160
111 °58[min] W
Patuxent River, MD........... 38 °17[min] N 80
076 °25[min] W
White Sands Missile Range, NM 33 °00[min] N 80
106 °30[min] W
Fort Irwin, CA............... 35 °16[min] N 50
116 °41[min] W
Fort Rucker, AL.............. 31 °13[min] N 50
085 °49[min] W
Fort Bragg, NC............... 35 °09[min] N 50
079 °01[min] W
Fort Campbell, KY............ 36 °41[min] N 50
087 °28[min] W
Fort Lewis, WA............... 47 °05[min] N 50
122 °36[min] W
Fort Benning, GA............. 32 °22[min] N 50
084 °56[min] W
Fort Stewart, GA............. 31 °52[min] N 50
081 °37[min] W
------------------------------------------------------------------------
Table 2._Coordination Distances for the Protected Department Of Defense
Facilities
------------------------------------------------------------------------
Coordination
1710-1755 MHz transmit operations distance (km)
------------------------------------------------------------------------
a. EIRP <=100 mW, antenna height <=1.6 m AG...... 35
b. EIRP <=1 W, antenna height <=10 m AG.......... 55
------------------------------------------------------------------------
(b) Protection of non-DoD operations in the 1710–1755 MHz and 1755–1761 MHz
bands. Until such time as non-DoD systems operating in the 1710–1755 MHz and
1755–1761 MHz bands are relocated to other spectrum, AWS licensees shall
protect such systems by satisfying the appropriate provisions of TIA
Telecommunications Systems Bulletin 10–F, “Interference Criteria for
Microwave Systems,” May, 1994 (TSB 10–F).
(c) Protection of Federal Government operations below 1710 MHz. AWS
licensees operating fixed stations in the 1710–1755 MHz band, if notified
that such stations are causing interference to radiosonde receivers
operating in the Meteorological Aids Service in the 1675–1700 MHz band or a
meteorological-satellite earth receiver operating in the
Meteorological-Satellite Service in the 1675–1710 MHz band, shall be
required to modify the stations' location and/or technical parameters as
necessary to eliminate the interference.
(d) Recognition of NASA Goldstone facility operations in the 2110–2120 MHz
band. The National Aeronautics and Space Administration (NASA) operates the
Deep Space Network (DSN) in the 2110–2120 MHz band at Goldstone, California
(see Table 3). NASA will continue its operations of high power transmitters
(nominal EIRP of 105.5 dBW with EIRP up to 119.5 dBW used under emergency
conditions) in this band at this location. AWS licensees must accept any
interference received from the Goldstone DSN facility in this band.
Table 3._Location of the NASA Goldstone Deep Space F
acility
-------------------------------------------------------------------------------
---------------------------------
Maximum transmitter output
Location Coordinates
power
-------------------------------------------------------------------------------
---------------------------------
Goldstone, California................... 35 °18[min] N 116 °54[min] W 500
kW
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