Treaty Series 1962 No. 15 — Coordination and Use of Radio Frequencies — Exchange of Notes between Canada and the United States of America

Technical Annex to the Exchange of Notes Between the Government of Canada and the Government of the United States of America Constituting an Agreement for Radio Frequency Coordination and Use of Radio Frequencies Above Thirty Megacycles per Second

Index to the technical annex listing

Frequency Bands, Authorized Coordination Agencies or Channels, and Arrangements
Item Frequency Bands Mc/s Authorized Coordination Agencies or Channels Coordination Arrangements and Remarks
U.S. Canada

* Authorized coordination channel only.

1 30.56-32.0 FCC DOT Arrangement A
2 33.0-34.0 FCC DOT Arrangement A
3 35.0-36.0 FCC DOT Arrangement A
4 37.0-38.0 FCC DOT Arrangement A
5 39.0-40.0 FCC DOT Arrangement A
6 42.0-46.6 FCC DOT Arrangement A
7 46.6-47.0 IRAC DOT ITU RR 228
8 47.0-49.6 FCC DOT Arrangement A
9 49.6-50.0 IRAC DOT ITU RR 228
10 72.0-74.6 FCC DOT Arrangement A
11 74.6-75.4 FAA DOT Arrangement B
12 75.4-76.0 FCC DOT Arrangement A
13 108.0-117.975 FAA DOT Arrangement B
14 117.975-121.975 FAA DOT Arrangement B
15 121.975-123.075 FCC DOT Arrangement B
16 123.075-123.575 FCC DOT Arrangement B
17 123.575-128.825 FAA DOT Arrangement B
18 128.825-132.025 FCC DOT Arrangement B
19 132.025-136.0 FAA DOT Arrangement B
20 137.0-144.0 JCS CCS* Arrangement C
21 150.8-174.0 FCC DOT Arrangement A
22 162.0-174.0 IRAC DOT Arrangement D
23 216.0-225.0 JCS CCS* Arrangement C
24 328.6-335.4 FAA DOT Arrangement B
25 420.0-450.0 JCS CCS* Arrangement C
26 450.0-470.0 FCC DOT Arrangement A
27 890.0-942.0 JCS CCS* Arrangement C
28 942.0-960.0 FCC DOT Arrangement A
29 960.0-1215.0 FAA DOT Arrangement B
30 1215.0-1400.0 JCS CCS* Arrangement C
31 1300.0-1350.0 FAA DOT Arrangement C
32 1400.0-1427.0     Coordination not required
33 1535.0-1660.0     Coordination not required at this time
34 1850.0-2200.0 FCC DOT Arrangement A
35 2300.0-2450.0 JCS CCS* Arrangement C
36 2450.0-2700.0     Coordination not required at this time
37 2700.0-2900.0 FAA DOT Arrangement C
38 2700.0-3700.0 JCS CCS* Arrangement C
39 2900.0-3100.0 IRAC DOT Arrangement C
40 3700.0-4200.00 FCC DOT Arrangement A
41 4200.0-4400.0     Coordination not required at this time
42 5000.0-5250.0     Coordination not required at this time
43 5250.0-5925.0 JCS CCS* Arrangement C
44 5460.0-5650.0 IRAC DOT Arrangement C
45 5925.0-7125.0 FCC DOT Arrangement A
46 8400.0-8500.0     Coordination not required at this time
47 8500.0-10500.0 JCS CCS* Arrangement C
48 9000.0-9200.0 FAA DOT Arrangement C
49 9300.0-9500.0 IRAC DOT Arrangement C
  Gc/s      
50 10.55-13.25 FCC DOT Arrangement A
51 13.25-13.4     Coordination not required at this time
52 13.4-14.0 JCS CCS* Arrangement C
53 14.0-15.7     Coordination not required at this time
54 15.7-17.7 JCS CCS* Arrangement C
55 17.7-23.0     Coordination not required at this time
56 23.0-24.25 JCS CCS* Arrangement C
57 24.25-33.4     Coordination not required at this time
58 33.4-36.0 JCS CCS* Arrangement C
59 36.0 and above     Coordination not required at this time

Arrangement A

Arrangement Between the Department of Transport and the Federal Communications Commission for the Exchange of Frequency Assignment Information and Engineering Comments on Proposed Assignments Along the Canada-United States Borders in Certain Bands Above 30 Mc/s

(Adopted by correspondence, May 1950; Revised Ottawa, March 1962)

    1. This arrangement involves assignments in the following frequency bands, except as provided in sub-paragraphs (b) (c) and (d) below:
      Mc/s
      30.56–32.00
      33.00–34.00
      35.00–36.00
      37.00–38.00
      39.00–40.00
      42.00–46.60
      47.00–49.60
      72.00–74.60
      Mc/s
      75.40–76.00
      150.80–174.00
      450.00–464.725
      465.275–470.00
      942.00–960.00
      1850.0–2200.0
      3700.0–4200.0
      5925.0–7125.0
      Gc/s
      10.55–13.25
    2. The following frequencies are not involved in this arrangement because of the nature of the services:
      Mc/s
      156.3
      156.35
      156.4
      156.45
      156.5
      156.55
      156.6
      156.65
      Mc/s
      156.7
      156.8
      156.9
      156.95
      157.0 and 161.6
      157.05
      157.1
      157.15
    3. Assignments proposed in accordance with the railroad industry radio frequency allotment plan along the United States-Canada border utilized by the Federal Communications Commission and the Department of Transport, respectively, may be excepted from this arrangement at the discretion of the referring Agency.
    4. Assignments proposed in any radio service in frequency bands below 470 Mc/s appropriate to this arrangement, other than those for stations in the Domestic Public (land mobile or fixed) category, may be excepted from this arrangement at the discretion of the referring Agency if a base station assignment has been made previously under the terms of this arrangement or prior to its adoption in the same radio service and on the same frequency and in the local area, and provided the basic characteristics of the additional station are sufficiently similar technically to the original assignment to preclude harmful interference to existing stations across the border.
    1. For Bands below 470 Mc/s, the areas which are involved lie between Lines A and B and between Lines C and D, as follows:

      Line A — Begins at Aberdeen, Wash., running by great circle arc to the intersection of 48° N., 120° W., thence along parallel 48° N., to the intersection of 95° W., thence by great circle arc through the southernmost point of Duluth, Min., thence by great circle arc to 45° N., 85° W., thence southward along meridian 85° W., to its intersection with parallel 41° N., thence along parallel 41° N., to its intersection with meridian 82° W., thence by great circle arc through the southernmost point of Bangor, Me., thence by great circle arc through the southernmost point of Searsport, Me., at which point it terminates; and

      Line B — Begins at Tofino, B.C., running by great circle arc to the intersection of 50° N., 125° W., thence along parallel 50° N., to the intersection of 90° W., thence by great circle arc to the intersection of 45° N., 79° 30' W., thence by great circle arc through the northernmost point of Drummondville, Quebec (Lat: 45° 52' N., Long: 72° 30' W.), thence by great circle arc to 48° 30' N., 70° W., thence by great circle arc through the northernmost point of Campbellton, N.B., thence by great circle arc through the northernmost point of Liverpool, N.S., at which point it terminates.

      Line C — Begins at the intersection of 70° N., 144° W., thence by great circle arc to the intersection of 60° N., 143° W., thence by great circle arc so as to include all the Alaskan Panhandle; and

      Line D — Begins at the intersection of 70° N., 138° W., thence by great circle arc to the intersection of 61° 20' N., 139° W. (Burwash Landing), thence by great circle arc to the intersection of 60° 45' N., 135° W., thence by great circle arc to the intersection of 56° N., 128° W., thence south along 128° meridian to Lat. 55° N., thence by great circle arc to the intersection of 54° N., 130° W., thence by great circle arc to Port Clements, thence to the Pacific Ocean where it ends.

    2. For bands above 470 Mc/s, the areas which are involved are as follows:
      1. For a station the antenna of which looks within the 200° sector toward the Canada-United States borders, that area in each country within 35 miles of the borders; and
      2. For a station the antenna of which looks within the 160° sector away from the Canada-United States borders, that area in each country within 5 miles of the borders.
    1. Each Agency shall furnish the other by July 1962, with a complete frequency assignment record, including, among the basic characteristics reported, the date of first usage of each frequency by each of the stations down regardless of the class of service, which were in actual operation on October 1, 1960, and located in the areas indicated in 2(a) above for the frequency bands below 470 Mc/s, and located in the areas indicated in 2(b) above for the frequency bands above 470 Mc/s. For the purpose of the revised arrangement, such record shall constitute, together with the 6th Edition of the Radio Frequency Record (Volume III), the master frequency assignment records for the two Agencies upon acceptance by the other Agency. Accordingly, in implementing the Geneva (1959) Radio Regulations, each Agency shall use these frequency records, in lieu of subsequent I.T.U. records, in matters leading to the resolution of pertinent cases of harmful interference involving stations authorized by the two Agencies.
    2. Each Agency shall keep its frequency assignment data in the aforementioned records current through the submission to the other Agency of its recapitulative master frequency assignment records at intervals of three months.
    1. Before the Federal Communications Commission takes final action on any application for the use of any frequency in the bands herein, in the areas stipulated above involving an effective radiated power in excess of five watts, or if protection is desired for an operation involving a power of five watts, or less, it will refer the pertinent particulars of the proposed assignment (see Appendix 3 or 4 as appropriate), in the form shown in Appendix 1 hereof, to the Department of Transport for comment as to whether the granting of an authorization will be likely to result in the causing of harmful interference to any existing Canadian assignments authorized by the Department.
    2. Before the Department of Transport takes final action on any application for the use of any frequency in the bands herein, in the areas stipulated above involving an effective radiated power in excess of five watts, or if protection is desired for an operation involving power of five watts, or less, it will refer the pertinent particulars of the proposed assignment (see Appendix 3 or 4 as appropriate), in the form shown in Appendix 2 hereof, to the Federal Communications Commission for comment as to whether the granting of an authorization will be likely to result in the causing of harmful interference to any existing United States assignments authorized by the Commission.
    3. Neither the Federal Communications Commission nor the Department of Transport shall be bound to act in accordance with the views of the other. However, to keep such instances to a minimum, each Agency should cooperate to the fullest extent practicable with the other by furnishing such additional data as may be required.
  1. Whenever differences of opinion concerning the probability of harmful interference exist, which cannot be resolved otherwise, or in cases where the information available makes it difficult to determine whether harmful interference would be created by the granting of a particular authorization, arrangement should be made for actual on-the-air tests to be observed by representatives of both the Federal Communications Commission and the Department of Transport. Should harmful interference be caused to the existing station, the Agency having jurisdiction over the proposed station should be notified promptly so that the transmissions of the interfering station may be halted. In the absence of a complaint of harmful interference, the authorization may not be granted until a lapse of 30 calendar days following the test period to allow sufficient time for the exchange, if desired, of engineering or other comments indicating an objection to the assignment.
  2. In the interest of planned use of the spectrum, information concerning future expansions and adjustments of the several services allocated to use the above bands, in the areas stipulated above, shall be exchanged to the maximum extent practicable.

Appendix 1 to Arrangement A

Appendix 1 to Arrangement A
Appendix 1 to Arrangement A

[Description of Figure]


Appendix 2 to Arrangement A

Appendix 2 to Arrangement A
Appendix 2 to Arrangement A

[Description of Figure]


Appendix 3 to Arrangement A

Basic Data Required for Coordination in the Fixed Service and Land Mobile Service Bands Below 470 Mc/s (Excluding Ionospheric Scatter)

  1. Operating agency
  2. Class of station
  3. Number of stations — Base and Mobile
  4. Frequency
  5. Location and coordinates
  6. Locality or area of reception
  7. Class of emission and necessary bandwidth
  8. Power (mean) delivered to the antenna
  9. Antenna gain (dB) and azimuth, when available
  10. Antenna elevation above M.S.L.

Appendix 4 to Arrangement A

Basic Data Required for Coordination in the Fixed Service and Land Mobile Service Bands Below 470 Mc/s (Excluding Tropospheric Scatter)

  1. Operating agency
  2. Class of station
  3. Number of stations — Base and Mobile
  4. Frequency
  5. Location and coordinates
  6. Locality or area of reception, including coordinates of fixed service receiving station
  7. Class of emission and necessary bandwidth
  8. Power (mean) delivered to the antenna
  9. Antenna gain (dB) and azimuth, when available
  10. Antenna elevation above M.S.L.
  11. Polarization of transmitted wave

Description of Images

Appendix 1 to Arrangement A

Appendix 1 provides a representation of a formatted letter to the Canadian Department of Transport, which was to be used by the U.S. Federal Communications Commission to provide information regarding the technical particulars of a proposed U.S. radio station. This allows provision of information, such as Serial Number, Date, Name of Applicant, File Number, Service, Class of Station, Number of Stations, Location, Frequency, Mean Power to Antenna, Emission, Antenna Gain and Azimuth, Antenna Height and any additional information. This information is required to be submitted in accordance with Section 4a of Arrangement A.
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Appendix 2 to Arrangement A

Appendix 2 provides a representation of a formatted letter addressed to the U.S. Federal Communications Commission (FCC), which was to be used by the Canadian Department of Transport to provide information to the FCC concerning the technical particulars of a proposed Canadian radio station. This allows provision of information such as Serial Number, Date, Name of Applicant, File Number, Service, Class of Station, Number of Stations, Location, Frequency, Mean Power to Antenna, Emission, Antenna Gain and Azimuth, Antenna Height and any additional information. This information is required to be submitted in accordance with Section 4b of Arrangement A.
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