Arrangement U

Sharing Arrangement between the Department of Industry of Canada and the Federal Communications Commission of the United States of America concerning the use of the frequency bands 896 to 901 MHz and 935 to 940 MHz along the Canada-United States Border

The Department of Industry of Canada (Industry Canada), and the Federal Communications Commission of the United States of America (FCC), hereinafter referred to as the "Agencies",

Have agreed to the following:

1. Scope

1.1 This arrangement is made pursuant to the Exchange of Notes (October 24, 1962) between the Government of Canada and the Government of the United States of America concerning the coordination and use of radio frequencies above thirty megacycles per second, with annex, completed at Ottawa October 24, 1962, as amended, and covers the sharing and coordination of frequency spectrum for the establishment and operation of land mobile radio services operating in the bands 896-901 MHz and 935-940 MHz along the Canada-United States border.

1.2 Aeronautical and maritime mobile services in this band are not covered by this arrangement but may be subject to special coordination procedures on a case-by-case basis at the request of either Agency prior to their introduction.

1.3 The Agencies may initiate and implement special coordination allowing proposed stations to operate in a manner exceeding the technical conditions stated in this Arrangement within the sharing zones where the affected licensees agree to such conditions. Special coordination may be initiated by either Agency through an exchange of correspondence and must be approved by both Agencies.

1.4 This Arrangement is subject to review at any time at the request of either Agency, the U.S. Department of State or the Department of Foreign Affairs, Trade and Development of Canada.

2. Sharing and Protection Zones

The Agencies shall use the following definitions of Sharing Zones, Protection Zones and Sectors when interpreting this Arrangement.

2.1 Sharing Zone I

This Sharing Zone is the area adjacent to the United States-Canada border East of longitude 121° 30' W and extending a distance of 100 km within either country. However, within Sharing Zone I, the following special geographic areas are recognized:

  1. In the Great Lakes area there are significant land areas that are within 100 km of the international borders between the United States and Canada, but further than 100 km from any land mass of the other country. These areas contain several significant population centres that would benefit from additional spectrum if the lake shores were considered for purposes of sharing. With this in mind, the following cities shall be considered as falling outside of Sharing Zone I, but inside the Protection Zone: in the United States, the cities of Akron, Ohio; Youngstown, Ohio; Syracuse, New York; and in Canada, the cities of Kitchener-Waterloo, Ontario; London, Ontario; Peterborough, Ontario. These cities are defined in Annex A, Table A4 as an area with the given centre coordinates and encompassing a circle of 30 km radius.
  2. Sector 1 and Sector 2 as defined in section 4 below are recognized as special geographic areas within Sharing Zone I.

2.2 Sharing Zone II

This Sharing Zone is the area adjacent to the United States-Canada border between 121° 30' and 127° W longitude and extending a distance of 140 km within either country.

2.3 Sharing Zone III

This Sharing Zone is the area adjacent to the Alaska-British Columbia/Yukon Territory border and extending a distance of 100 km within either country.

2.4 Protection Zone

The Protection Zones are the areas adjacent to Sharing Zones I and III and extending from 100 to 140 km away from the United States-Canada border within both countries as well as the areas defined in Annex A, Table A4.

3. General Sharing Arrangements

3.1 Paired Channelling Arrangements

Within the Sharing and Protection Zones, the Agencies shall use the spectrum on the basis of a paired frequency channelling plan with mobile station transmitters in the band 896-901 MHz and base station transmitters in the band 935-940 MHz. A mobile station may also transmit on any frequency assigned to its associated base station. Base station to base station transmissions may occur in either of these frequency bands.

3.2 Distribution/Allotment of Frequencies

The frequency bands covered by this Arrangement shall be shared along the border, as indicated below. Each Agency may use their allotted portions of spectrum subject to not causing harmful interference to assignments beyond the allotted frequency band edges and subject to the technical limits specified in section 5.

3.2.1 Canada

In the Sharing Zones, except as specified in section 4, Canada has primary use of the frequency bands:

  • 898.50625 to 901.000 MHz, and
  • 937.50625 to 940.000 MHz.
3.2.2 United States

In the Sharing Zones, except as specified in section 4, the United States has primary use of the frequency bands:

  • 896.000 to 898.50625 MHz, and
  • 935.000 to 937.50625 MHz.
3.2.3 Shared Channels
  1. The following 12.5 kHz bandwidth paired channels with the centre frequencies as indicated shall be available for implementation of an Advanced Train Control System (ATCS). These channels are available for each Agency’s use in all areas:
    • 896.8875 MHz paired with 935.8875 MHz
    • 896.9375 MHz paired with 935.9375 MHz
    • 896.9875 MHz paired with 935.9875 MHz
    • 897.8875 MHz paired with 936.8875 MHz
    • 897.9375 MHz paired with 936.9375 MHz
    • 897.9875 MHz paired with 936.9875 MHz

      The Agencies agree to allow the Association of American Railways (AAR) in the United States and the Railway Association of Canada (RAC) in Canada to coordinate their use of frequencies designated for ATCS in border areas. Within the sharing zones, any non-ATCS usage would require coordination between the Agencies.
  2. Because of the unequal distribution of the ATCS reserved frequencies, the following 12.5 kHz bandwidth paired channels with the centre frequencies as indicated shall be available to the United States within the sharing zones except where otherwise mentioned:
    • 900.9750 MHz paired with 939.9750 MHz
    • 900.9875 MHz paired with 939.9875 MHz
3.2.4 Protection Zones

In the protection Zones, each Agency has primary use of the frequency bands 896-901 MHz and 935-940 MHz within its respective country.

3.3 Use of the 896-901 MHz and 935-940 MHz Bands Outside of the Sharing and Protection Zones

Beyond 140 km from the border, each Agency has primary use of these bands within its respective country.

3.4 In the event that a station in one country causes harmful interference to a station in the other country, both Agencies shall take appropriate action to eliminate such interference.

4. Special Sharing Arrangements

In recognition of particular demographic circumstances, the Agencies agree on the unequal division of spectrum between Canada and the United States in the following two sectors of Sharing Zone I:

4.1 Sector 1

Sector 1 is defined to be the portion of Sharing Zone I in the United States and Canada, bounded on the West by 85° W longitude and on the East in Canada by 81° W longitude and in the United States by 80° 30' W longitude.

In this Sector, except as specified in section 3.2.3, the United States has primary use of the frequency bands 896.000 to 900.25625 MHz and 935.000 to 939.25625 MHz.

In this Sector, except as specified in section 3.2.3 (b), Canada has primary use of the frequency bands 900.25625 to 901.000 MHz and 939.25625 to 940.000 MHz.

4.2 Sector 2

Sector 2 is defined to be the portion of Sharing Zone I in the United States and Canada bounded on the East by 71° W longitude and on the West in Canada by 81° W and in the United States by 80° 30' W longitude.

In this Sector except as specified in section 3.2.3, the United States has primary use of the frequency bands 896.000 to 897.50625 MHz and 935.000 to 936.50625 MHz.

In this sector, except as specified in section 3.2.3 (b), Canada has primary use of the frequency bands 897.50625 to 901.000 MHz and 936.50625 to 940.000 MHz.

5. Technical limits

5.1 Within Sharing Zones I (including Sectors 1 and 2) and III, the Agencies may use their allotted portions of spectrum subject to the Effective Radiated Power (ERP) and Effective Antenna Height (EAH) limits of Annex A, Table A1.

5.2 Within Sharing Zones II, the Agencies may use their allotted portions of spectrum subject to the Effective Radiated Power (ERP) and Effective Antenna Height (EAH) limits of Annex A, Table A2.

5.3 Each Agency shall have primary use of the frequency bands 896-901 MHz and 935-940 MHz within the Protection Zone in its respective country subject to the condition that base stations not exceed the maximum ERP and EAH limits of Annex A, Table A1.

5.4 Within the Sharing and Protection Zones, calculation of the limits on ERP should be based on the power radiated toward the horizon in the direction of the common border.

6. Coordination Necessitated by the Special Sharing Arrangements

6.1 As a result of the division of spectrum described in sections 4.1 and 4.2, portions of the bands allotted to both countries under this Arrangement overlap. Therefore, the Agencies shall coordinate proposed frequency assignments in the overlapping portions of those bands, as described in sections 6.2 and 6.3 below, in accordance with the procedures specified in Arrangement A annexed to the Agreement Concerning the Coordination and Use of Radio Frequencies Above Thirty Megacycles per Second, as amended 24 June 1965.

6.2 Coordination is required for assignments in the frequency bands 897.50625 to 898.50625 MHz and 936.50625 to 937.50625 MHz in the following area (see Annex B, Figure 1):

  1. the geographical area in Canada enclosed by the United States-Canada border, the meridian 71° W; and the line beginning at the intersection of 72° W and the United States-Canada border, thence running North along meridian 72° W to the intersection of 45° 45' N, thence running East along 45° 45' N to the meridian 71° W, and
  2. the geographical area in the United States enclosed by the United States-Canada border, the meridian 71° W; and the line beginning at the intersection of 44° 25' N, 71° W, thence running by great circle arc to the intersection of 45° N, 70° W, thence North along meridian 70° W to the intersection of 45° 45' N, thence running West along 45° 45' N to the intersection of the United States-Canada border.

In this area, the Agencies shall assign channels in the overlapping bands on centre frequencies spaced 12.5 kHz apart. The FCC shall assign frequencies from 897.5125 to 898.0000 MHz and 936.5125 to 937.0000 MHz inclusive. Industry Canada shall assign frequencies from 898.0125 to 898.5000 MHz and 937.0125 to 937.5000 MHz inclusive. The Agencies may agree to mutually beneficial changes to the above noted channelling plan in an effort to promote spectral efficiency.

6.3 Coordination is required for assignments in the frequency bands 897.50625 to 900.25625 MHz and 936.50625 to 939.25625 MHz in the following overlap areas (see Annex B, Figure 2):

  1. the geographical area in Canada enclosed by the meridian of 81° W longitude, the arc of a circle of 100 km radius centred at 41° 58' N latitude and 80° 30' W longitude at the southern shore of Lake Erie and drawn clockwise from the northerly intersection with 81° W longitude to intersect the United States-Canada border East of 80° 30' W, and the United States-Canada border, and
  2. the geographical area in the United States enclosed by the meridian of 81° W longitude, the arc of a circle of 100 km radius centred at 42° 39' 30" N latitude and 81° W longitude at the northern shore of Lake Erie and drawn clockwise from the southerly intersection with 80° 30' W longitude to intersect the United States-Canada border West of 81° W, and the United States-Canada border.

In these areas, the Agencies shall assign channels in the overlapping bands on centre frequencies spaced 12.5 kHz apart. The FCC shall assign frequencies from 897.5125 to 898.8750 MHz and 936.5125 to 937.8750 MHz inclusive. Industry Canada shall assign frequencies from 898.8875 to 900.2500 and 937.8875 to 939.2500 MHz inclusive. The Agencies may agree to mutually beneficial changes to the above noted channelling plan in an effort to promote spectral efficiency.

Within an area of 30 km radius from the centre city coordinates of London, Ontario, 42° 59' N 81° 14' W, Canada has primary access as defined in section 2.1 (protection zone).

7. Use of Frequencies Allotted to One Agency by the Other Agency

7.1 Frequencies allotted for primary use of one Agency may be assigned by the other Agency for use within the sharing zones in its country under the following conditions:

  1. The maximum power flux density (pfd) of the signal at and beyond the border of the primary user’s country does not exceed −124 dB(W/m2)/25 kHz.
    1. The Agencies shall require applicants or licensees under this provision to calculate the pfd specified in section 7.1 (a) using good engineering practice and generally accepted terrain-sensitive propagation models (with location and time variables of 10% and standard 3 arc-second digitized terrain data). Upon request by either Agency, the other Agency shall provide all data and calculations for determining compliance with this Arrangement.
    2. In the event that the measured pfd at or beyond the border exceeds the value specified in section 7.1 (a), it is the responsibility of the licensee to bring the station’s pfd into compliance with the pfd specified in section 7.1(a).
  2. Stations authorized under this provision shall be considered as secondary and shall neither be granted protection against harmful interference from stations that have primary use of their authorized frequency nor shall they cause harmful interference to stations having primary use of their authorized frequency, regardless of whether they meet the pfd value specified in section 7.1 (a).
  3. Mobile stations exceeding 5 watt transmitter power output (TPO) shall not be operated in frequencies allotted for primary use of the other Agency within 30 km of the common border.
  4. Beyond 30 km of the common border, mobile stations operating in frequencies allotted for primary use of the other Agency must not exceed the pfd specified in section 7.1 (a).
  5. The documentation issued by each Agency authorizing such stations to use these frequencies shall include a clause stating that such authorization is subject to the following conditions:
    1. In the event that the measured pfd of the signal at or beyond the border is found to exceed −124 dBW/m2)/25 kHz, the signal level shall be reduced accordingly;
    2. In the event that harmful interference occurs to any station that has primary use of the authorized frequency, regardless of the signal strength, the licensee shall take immediate action to eliminate such interference. The Agency granting the authorization for secondary use shall ensure that remedial action is taken to resolve the harmful interference, up to and including revocation of the authorization.

7.2 The Agencies may permit stations that were operating prior to August 20, 2013 and that comply with the pfd limits as specified in Annex C to continue operations with their current parameters under the following conditions; Stations authorized under this provision shall neither be granted protection against harmful interference from stations that have primary use of their authorized frequency, nor shall they cause harmful interference to stations having primary use of their authorized frequency.

8. Information Exchange

8.1 To facilitate the coordination requirements of this Arrangement the Agencies shall exchange information including, but not limited to: (1) licensee name(s); (2) licensed service areas; and (3) licensee point(s) of contact; or means to obtain the above information.

8.2 When necessary, the Agencies shall provide information to their respective licensees to facilitate the coordination requirements of this Arrangement.

8.3 To facilitate cross-border coordination between licensees, the Agencies shall encourage licensees to exchange data as listed in Annex D to this Arrangement.


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 the Sharing Zones I (including 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 (AATE) 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 Metres
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.

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 Metres
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 Metres Feet Metres
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 54 ≤ " 0 0 0 0
" 56 ≤ 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 centre 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

Annex B

Figure 1: Band Overlap Areas where Coordination is Required

Figure 1: Band Overlap Areas where Coordination is Required (the long description is located below the image)
Description of Figure 1

This figure presents a map of a small region of the Canada-United States border, which depicts a shaded area in either country where coordination is required of proposed frequency assignments. The Canadian area is that area enclosed by the United States-Canada border, the meridian 71° W; and the line beginning at the intersection of 72° W and the United States-Canada border, thence running North along meridian 72° W to the intersection of 45° 45' N, thence running east along 45° 45' N to the meridian 71° W. The United States area is that area enclosed by the United States-Canada border, the meridian 71° W; and the line beginning at the intersection of 44° 25' N, 71° W, thence running by great circle arc to the intersection of 45° N, 70° W, thence north along meridian 70° W to the intersection of 45° 45' N, thence running west along 45° 45' N to the intersection of the United States-Canada border.


Frequency Assignments to be Coordinated (MHz)
(12.5 kHz Channel Spacing)
Canada United States Overlap Bands
898.0125-898.5000 897.5125-898.0000 897.50625-898.50625
937.0125-937.5000 936.5125-937.0000 936.50625-937.50625

Figure 2: Band Overlap Area 2 where Coordination is Required

Figure 2: Band Overlap Area 2 where Coordination is Required (the long description is located below the image)
Description of Figure 2

This figure presents a map of a small region of the Canada-United States border, which depicts a shaded area in either country where coordination is required of proposed frequency assignments. The Canadian area is that area enclosed by the meridian of 81 degrees west longitude, the arc of a circle of 100 kilometres radius centered at 41 degrees 58 minutes north latitude and 80 degrees 30 minutes west longitude at the southern shore of Lake Erie and drawn clockwise from the northerly intersection with 81 degrees west longitude to intersect the United States-Canada border east of 80 degrees 30 minutes west, and the United States-Canada border. The United States area is that area enclosed by the meridian of 81 degrees west longitude, the arc of a circle of 100 kilometres radius centered at 42 degrees 39 minutes 30 seconds north latitude and 81 degrees west longitude at the northern shore of Lake Erie and drawn clockwise from the southerly intersection with 80 degrees 30 minutes west longitude to intersect the United States-Canada border west of 81 degrees west, and the United States-Canada border.


Frequency Assignments to be Coordinated (MHz) (12.5 kHz Channel Spacing)
Canada United States Overlap Bands
898.8875-900.2500 897.5125-898.8750 897.50625-900.25625
937.8875-939.2500 936.5125-937.8750 936.50625-939.25625

Annex C — PFD limits for stations operating prior to August 20, 2013

Notwithstanding Section 7.1, stations that were operating prior to August 20, 2013 and that comply with the pfd limits as specified below, shall be permitted to continue operations with their current parameters.

  1. The maximum power flux density (PFD) of the signal at and beyond the border, calculated using free-space propagation (taking into account any antenna discrimination in the direction of the border) does not exceed the limits specified in Tables C1 and C2.
  2. In sharing Zone II, in recognition of special topographical conditions, the use of a modified Longley Rice point-to-point propagation model with time and location variables of 10%Footnote 1 and standard 3 arc-second digitized terrain data is permitted.Footnote 2 The limit for the predicted PFD shall not exceed −107 dBW/m2 at and beyond the border.
Table C1 — Limits of Power Flux Density (PFD) Corresponding to Effective Antenna Heights of Base Stations in Sharing Zones I and III
Effective Antenna Height (EAH) PFD
dBW/m2
(Maximum)
Metres Feet
0-152 0-500 -84
153-305 501-1000 -90
306-457 1001-1500 -95
458-609 1501-2000 -98
610-762 2001-2500 -101
763-914 2501-3000 -101
915-1066 3001-3500 -103
1067-1219 3501-4000 -104
Above 1219 Above 4000 -104
Table C2 — Limits of Power Flux Density (PFD) Corresponding to Antenna Heights Above Mean Sea Level of Base Stations in Sharing Zones I and II
Antenna Height
Above Mean Sea Level
PFD
dBW/m2
(Maximum)
Metres Feet
0-503 0-1650 -87
504-609 1651-2000 -88.5
610-762 2001-2500 -91
763-914 2501-3000 -92.5
915-1066 3001-3500 -94
1067-1219 3501-4000 -95
1220-1371 4001-4500 -95.5
1372-1523 4501-5000 -96
Above 1523 Above 5000 -107

Annex D — Parameters for Coordination

Licensee information (Corporate name/Mailing address/Phone/Fax/Email address)
Location of transmitter (Community/State/Province)
Geographical coordinates of transmitting antenna (NAD83)
Equivalent Radiated Power (ERP) (dBW)
Ground elevation and antenna height above ground (m)
Centre frequency (MHz)
Polarization
Antenna pattern/tabulation of the pattern
Azimuth of the maximum antenna gain
Bandwidth and emission designation

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