Goto Section: 101.1331 | 101.1401 | Table of Contents
FCC 101.1333
Revised as of October 1, 2010
Goto Year:2009 |
2011
§ 101.1333 Interference protection criteria.
(a) Frequency coordination. All EA licensees are required to coordinate
their frequency usage with co-channel adjacent area licensees and all
other affected parties.
(b) EA licensees are prohibited from exceeding a signal strength of 40
dBuV/m at their service area boundaries, unless a higher signal
strength is agreed to by all affected co-channel, adjacent area
licensees.
(c) EA licensees are prohibited from exceeding a signal strength of 40
dBuV/m at incumbent licensees' 40.2 kilometer (25-mile) radius
composite contour specified in § 101.1331(c).
(d) In general, licensees shall comply with the appropriate
coordination agreements between the United States and Canada and the
United States and Mexico concerning cross-border sharing and use of the
applicable MAS frequencies.
(1) Canada--932.0-932.25 MHz and 941.0-941.25 MHz. (i) Within Lines A,
B, C, and D, as defined in § 1.928(e) of this chapter, along the
U.S./Canada border, U.S. stations operating in the 932.0-932.25 MHz and
941.0-941.25 MHz bands are on a secondary basis and may operate
provided that they shall not transmit a power flux density (PFD) at the
border greater than -100 dBW/m^2 nor -94 dBW/m^2 , respectively. The
U.S. has full use of the frequencies in these regions up to the border
in the bands 932.25-932.50 MHz and 941.25-941.50 MHz, and Canadian
stations may operate on a secondary basis provided they do not exceed
the respective PFDs shown above. PFD can be determined using the
following formula: PFD (dBW/m^2 ) = 10 log [EIRP/4p(D^2 ], where EIRP
is in watts, D is in meters, and the power is relative to an isotropic
radiator. The technical parameters are also limited by tables 1 and 2:
Table 1--Maximum Radiated Power
Class of station Band MHz Maximum EIRP Maximum ERP^1
Watts dBW Watts dBW
Master 941.0-941.5 1000 30 600 27.8
Fixed Remote and Master 932.0-932.5 50 17 30 14.8
^1Where ERP = EIRP/1.64.>
(ii) Maximum antenna height above average terrain for master stations
operating at a maximum power shall not exceed 150 meters. Above 150
meters, the power of master stations shall be in accordance with
following table:
Table 2--Antenna Height--Power Reduction Table
Antenna height above average terrain (meters) EIRP ERP
Watts dBW Watts dBW
Above 305 200 23 120 20.8
Above 275 to 305 250 24 150 21.8
Above 245 to 275 315 25 190 22.8
Above 215 to 245 400 26 240 23.8
Above 180 to 215 500 27 300 24.8
Above 150 to 180 630 28 380 25.8
Note to Table 2: This information is from the Arrangement between the
Federal Communications Commission and the National Telecommunications
and Information Administration of the United States of America, and
Industry Canada concerning the use of the bands 932 to 935 MHz and 941
to 944 MHz along the United States-Canada border signed in 1994. This
agreement also lists grandfathered stations that must be protected.
(2) Canada--928-929 MHz and 952-960 MHz. Between Lines A and B and
between Lines C and D, as defined in § 1.928(e) of this chapter, along
the U.S./Canada border, U.S. stations operating in the 928.50-928.75
MHz and 952.50-952.75 MHz bands are on an unprotected basis and may
operate provided that they shall not transmit a power flux density
(PFD) at or beyond the border greater than -100 dBW/m^2 . The U.S. has
full use of the frequencies in these regions up to the border in the
bands 928.25-928.50 MHz and 952.25-952.50 MHz, and Canadian stations
may operate on an unprotected basis provided they do not exceed the PFD
above. Frequencies in the bands 928.00-928.25 MHz, 928.75-929.00 MHz,
952.00-952.25 MHz, and 952.75-952.85 MHz are available for use on a
coordinated, first-in-time, shared basis subject to protecting
grandfathered stations. New stations must provide a minimum of 145 km
(90 miles) separation or alternatively limit the actual PFD of the
proposed station to -100 dBW/m^2 , at the existing co-channel master
stations of the other country, or as mutually agreed upon on a
case-by-case basis. Coordination is not required if the PFD at the
border is lower than -100 dBW/m^2 . The technical criteria are also
limited by the following:
Maximum EIRP for master stations in the MHz band: 1000 watts (30 dBW)
952-953
Maximum EIRP for fixed remote stations or stations in the 928-929 MHz
band: 50 watts (17 dBW) master
Maximum EIRP for mobile master stations: 25 watts (14 dBW)
Maximum antenna height above average master or control stations: 152 m
at 1000 watts terrain for EIRP, power derated in accordance with the
following table:
Antenna height above
average terrain (m) EIRP
Watts dBm
Above 305 200 53
Above 275 to 305 250 54
Above 244 to 274 315 55
Above 214 to 243 400 56
Above 183 to 213 500 57
Above 153 to 182 630 58
Below 152 1000 60
Note to table in paragraph (d)(2): This information is from the
Arrangement between the Department of Communications of Canada and the
Federal Communications Commission of the United States of America
Concerning the Use of the Bands 928 to 929 MHz and 952 to 953 MHz along
the United States-Canada Border signed in 1991. This agreement also
lists grandfathered stations that must be protected.
(3) Mexico. Within 113 kilometers of the U.S./Mexico border, U.S.
stations operating in the 932.0-932.25 MHz and 941.0-941.25 MHz bands
are on a secondary basis (non-interference to Mexican primary
licensees) and may operate provided that they shall not transmit a
power flux density (PFD) at or beyond the border greater than -100
dBW/m^2 . Upon notification from the Commission, U.S. licensees must
take proper measures to eliminate any harmful interference caused to
Mexican primary assignments. The U.S. has full use of the frequencies
in these regions up to the border in the bands 932.25-932.50 MHz and
941.25-941.50 MHz, and Mexican stations may operate on a secondary
basis (non-interference to U.S. primary licensees) provided they do not
exceed the PFD shown above. Stations using the 932-932.5 MHz band shall
be limited to the maximum effective isotropic radiated power of 50
watts (17 dBW). Stations using the 941-941.5 MHz band shall meet the
limits in the following table:
Antenna height above
average mean sea level (meters) EIRP
Watts dBW
Above 305 200 23
Above 274 to 305 250 24
Above 243 to 274 315 25
Above 213 to 243 400 26
Above 182 to 213 500 27
Above 152 to 182 630 28
Up to 152 1000 30
Note to table in paragraph (d)(3): This information is from the
Agreement between the Government of the United States of America and
the Government of the United Mexican States Concerning the Allocation
and Use of Frequency Bands by Terrestrial Non-Broadcasting
Radiocommunication Services Along the Common Border, Protocol #6
Concerning the Allotment and Use of Channels in the 932-932.5 and
941-941.5 MHz Bands for Fixed Point-to-Multipoint Services Along the
Common Border signed in 1994.
[ 65 FR 17450 , Apr. 3, 2000, as amended at 68 FR 4961 , Jan. 31, 2003]
Subpart P--Multichannel Video Distribution and Data Service Rules for the
12.2-12.7 GHz Band
Source: 69 FR 31746 , June 7, 2004, unless otherwise noted.
Goto Section: 101.1331 | 101.1401
Goto Year: 2009 |
2011
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