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[mu]/m

[[Page 717]]

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[mu]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) Canada--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 -100 dBW/m2 nor -94 
dBW/m2, 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/
m2) = 10 log [EIRP/4[pi](D2], 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
-------------------------------------------------------------------------------
---------------------------------
                                                                          Maxim
um 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) Canada--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 -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

[[Page 718]]

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:

------------------------------------------------------------------------
                                                              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 -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 .

[65 1994 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.