Sec.  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
   dB ΅V/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
   dB ΅V/m at incumbent licensees' 40.2 kilometer (25-mile) radius composite
   contour specified in  Sec. 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) Canadaβ€”932.0–932.25 MHz and 941.0–941.25 MHz:

   (i) Within Lines A, B, C, and D, as defined in  Sec. 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 βˆ’100 dBW/m^2 nor βˆ’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/4Ο€(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
------------------------------------------------------------------------
                                              Maximum EIRP   Maximum ERP
                                             --------------      \1\
       Class of station           Band MHz                 -------------
                                              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
------------------------------------------------------------------------
\1\ Where 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
------------------------------------------------------------------------
                                               EIRP             ERP
  Antenna height above average terrain   -------------------------------
                (meters)                   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) Canadaβ€”928–929 MHz and 952–960 MHz:

   Between Lines A and B and between Lines C and D, as defined in  Sec. 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 βˆ’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 βˆ’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 βˆ’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:


------------------------------------------------------------------------
                                                              EIRP
       Antenna height above  average terrain (m)       -----------------
                                                         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 βˆ’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:


------------------------------------------------------------------------
                                                              EIRP
 Antenna height above  average mean sea level (meters) -----------------
                                                         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 Pβ€”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.