Arrangement F - Annex A

Limits of Effective Radiated Power and Antenna Height for General Sharing Arrangements


Effective Radiated Power (ERP) is defined as the product of the power supplied to the antenna and its gain relative to a half-wave dipole in a given direction.

For base stations in Sharing Zones I (include Sectors 1 and 2) and III, and the Protection Zones, Table A1 lists the limits of Effective Radiated Power (ERP) corresponding to the Effective Antenna Height (EAH) ranges shown. In this case, Effective Antenna Height is calculated by subtracting the Assumed Average Terrain Elevation given in Table A3 from the antenna height above mean sea level.

Table A1 — Limits of Effective Radiated Power (ERP) Corresponding to Effective Antenna Heights of Base Stations in Sharing Zones I (including Sectors 1 and 2) and III, and the Protection Zones
Effective Antenna Height(EAH)
in Meters
ERP Watts
(Maximum)
Up to 153 500
Above 153 to 306 125
Above 306 to 458 40
Above 458 to 610 20
Above 610 to 915 10
Above 915 to 1067 6
Above 1067 5

For base stations in Sharing Zone II, Table A2 lists the limits of Effective Radiated Power (ERP) corresponding to the antenna height above mean sea level (AMSL) ranges shown.

Table A2 — Limits of Effective Radiated Power (ERP) Corresponding to Antenna Heights Above Mean Sea Level of Base Stations in Sharing Zone II
Antenna Height Above Mean Sea Level
(AMSL) in Meters
ERP Watts
(Maximum)
Up to 504 500
Above 504 to 610 350
Above 610 to 763 200
Above 763 to 915 140
Above 915 to 1067 100
Above 1067 to 1220 75
Above 1220 to 1372 70
Above 1372 to 1523 65
Above 1523 5

Table A3 lists the values of Assumed Average Terrain Elevations (AATE) within the Sharing and Protection Zones on both sides of the United States-Canada border.

EAH = Antenna Height Above Mean Sea Level - AATE

Table A3 — Values of Assumed Average Terrain Elevation within the Sharing and Protection Zones on Both Sides of the United States-Canada Border
Longitude (φ)
(°West)
Latitude (Ω)
(°North)
Assumed Average Terrain Elevation
United States Canada
Feet Meters Feet Meters
65 ≤ Φ < 69        Ω < 45 0 0 0 0
" 45 ≤ Ω < 46 300 91 300 91
"        Ω ≥ 46 1000 305 1000 305
69 ≤ Φ < 73 All 2000 609 1000 305
73 ≤ Φ < 74 " 500 152 500 152
74 ≤ Φ < 78 " 250 76 250 76
78 ≤ Φ < 80        Ω < 43 250 76 250 76
"        Ω ≥ 43 500 152 500 152
80 ≤ Φ < 90 All 600 183 600 183
90 ≤ Φ < 98 " 1000 305 1000 305
 98 ≤ Φ < 102 " 1500 457 1500 457
102 ≤ Φ < 108 " 2500 762 2500 762
108 ≤ Φ < 111 " 3500 1066 3500 1066
111 ≤ Φ < 113 " 4000 1219 3500 1066
113 ≤ Φ < 114 " 5000 1524 4000 1219
114 ≤ Φ < 121.5 " 3000 914 3000 914
121.5 ≤ Φ 127 " 0 0 0 0
             Φ ≥ 127 54 ≤ Ω < 56 0 0 0 0
" 56 ≤ Ω < 58 500 152 1500 457
" 58 ≤ Ω < 60 0 0 2000 609
" 60 ≤ Ω < 62 4000 1219 2500 762
" 62 ≤ Ω < 64 1600 488 1600 488
" 64 ≤ Ω < 66 1000 305 2000 609
" 66 ≤ Ω < 68 750 228 750 228
"    68 ≤ Ω < 69.5 1500 457 500 152
"           Ω ≥ 69.5 0 0 0 0

Table A4 lists cities in the United States and Canada that for the purposes of this agreement shall be considered as falling outside of Sharing Zone I but within the Protection Zone. These cities are defined as circles with a 30 km radius around the center coordinates listed.

Table A4 — Cities in the United States and Canada Considered as Falling Outside of Sharing Zone I But Within the Protection Zone
Location Coordinates (NAD83)
Latitude Longitude
Akron, Ohio 41° 05' 00.2" N 81° 30' 39.4" W
Youngstown, Ohio 41° 05' 57.2" N 80° 39' 01.3" W
Syracuse, New York 43° 03' 04.2" N 76° 09' 12.7" W
Kitchener-Waterloo, Ontario 43° 27' 30.2" N 80° 29' 59.4" W
Peterborough, Ontario 44° 18' 00.2" N 78° 18' 59.2" W
London, Ontario 42° 59' 00.0" N 81° 14' 00.0" W
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