Agreement Between the Government of Canada and the Government of the United States of America Relating to the TV Broadcasting Service and the Associated Working Arrangement

Annex I — Channel Designation

VHF
Channel No. Frequency Band
(MHz)
2 54 - 60
3 60 - 66
4 66 - 72
5 76 - 82
6 82 - 88
7 174 - 180
8 180 - 186
9 186 - 192
10 192 - 198
11 198 - 204
12 204 - 210
13 210 - 216

 

UHF
Channel No. Frequency Band
(MHz)
14 470 - 476
15 476 - 482
16 482 - 488
17 488 - 494
18 494 - 500
19 500 - 506
20 506 - 512
21 512 - 518
22 518 - 524
23 524 - 530
24 530 - 536
25 536 - 542
26 542 - 548
27 548 - 554
28 554 - 560
29 560 - 566
30 566 - 572
31 572 - 578
32 578 - 584
33 584 - 590
34 590 - 596
35 596 - 602
36 602 - 608
37 608 - 614Table note *
38 614 - 620
39 620 - 626
40 626 - 632
41 632 - 638
42 638 - 644
43 644 - 650
44 650 - 656
45 656 - 662
46 662 - 668
47 668 - 674
48 674 - 680
49 680 - 686
50 686 - 692
51 692 - 698
52 698 - 704
53 704 - 710
54 710 - 716
55 716 - 722
56 722 - 728
57 728 - 734
58 734 - 740
59 740 - 746
60 746 - 752
61 752 - 758
62 758 - 764
63 764 - 770
64 770 - 776
65 776 - 782
66 782 - 788
67 788 - 794
68 794 - 800
69 800 - 806

Annex II

Zones I & II

CANADA

Zone I: consists of that area between Windsor and Quebec which is located within the confines of the USA-Canada border and the following lines: beginning from the west at the intersection of the common border and the North Latitude 44°10'; thence in a straight line northeast to the point of intersection of 77° West Longitude and 46° North Latitude; thence following the 46° North Latitude until the 75° West Longitude; thence in a straight line northeast to the point of intersection of 72° West Longitude, and 47° North Latitude; thence following the 47° North Latitude to the point of intersection with 71° West Longitude; thence following the 71° West Longitude southwards to the common border.

Zone II: consists of that portion of Canada within 400 km of the USA-Canada border which is not in Zone I.

THE UNITED STATES

Zone I: consists of that portion of the United States located within the confines of the following lines drawn on the United States Albers Equal Area Projection Map (based on standard parallels 29.5° and 45.5°; North American Datum); beginning at the most easterly point of the State boundary line between North Carolina and Virginia; thence in a straight line to a point on the Virginia, West Virginia boundary line located at North Latitude 37° 49' and West Longitude 80° 12' 30"; thence westerly along the southern boundary lines of the States of West Virginia, Ohio, Indiana and Illinois to a point at the junction of the Illinois, Kentucky and Missouri State boundary lines; thence northerly along the western boundary line of the State of Illinois to a point at the junction of the Illinois, Iowa and Wisconsin State boundary lines; thence easterly along the northern State boundary line of Illinois to the 90th meridian; thence north along this meridian to the 43.5° parallel; thence east along this parallel to the USA-Canada border; thence southerly and following the international border until it again intersects the 43.5° parallel; thence east along this parallel to the 71st meridian; thence in a straight line to the intersection of the 69th meridian and the 45th parallel; thence east along the 45th parallel to the Atlantic Ocean. When any of the above lines pass through a city, the city shall be considered to be located in Zone 1.

Zone II: consists of that portion of the United States within 400 km of the USA-Canada border which is not in Zone I.


Annex III — Computation of Distance and Azimuth

1. Computation of Distance

The distance between reference points is considered to be the length of the hypotenuse of a right angle triangle, one side of which is the difference in latitude of the reference points and the other side the difference in longitude of the two reference points, and shall be computed as follows:

1.1 Convert latitude and longitude into degrees and decimal parts of a degree. Determine the middle latitude of the two reference points (average the latitudes of the two points).

LATM = (LAT1 + LAT2)/2

1.2 Determine the number of kilometres per degree of latitude difference for the determined middle latitude.

LATK = 111.108 - .566 cos (2 LATM)

1.3 Determine the number of kilometres per degree of longitude difference for the determined middle latitude.

LONGK = 111.391 cos (LATM) - .095 cos (3 LATM)

1.4 Determine the North-South distance in kilometres.

LAT = LATK (LAT1 - LAT2)

1.5 Determine the East-West distance in kilometres.

LONG = LONGK (LONG1 - LONG2)

1.6 Determine the distance between the reference points by the square root of the sum of the squares of the distance obtained.

DIST = (LAT2 + LONG2)½

where:

LAT1 and LONG1 = coordinates of one location in decimal degrees

LAT2 and LONG2 = coordinates of second location in decimal degrees

LATM = middle latitude between points

LATK = kilometres per degree of latitude difference

LONGK = kilometres per degree of longitude difference

LAT = north-south distance in kilometres

LONG = east-west distance in kilometres, and

DIST = distance between two reference points in kilometres

In computing the above, sufficient decimal figures shall be used to determine the distance to the nearest kilometre.

2. Calculation of Azimuth

In some instances, it is necessary to calculate the angle or azimuth between true north and the connecting radial from one reference point to another.

2.1 Convert latitude and longitude into degrees and decimal parts of a degree.

2.2 Determine the arc length in degrees between the two reference locations.

d = cos-1 [sin(LAT2) sin(LAT1) + cos(LAT2) cos(LAT1) cos(LONG1-LONG2)]

2.3 Calculate the azimuth. (If the second location is west of the initial location, subtract the result from 360°; i.e., 360 - AZM).

\[AZM = cos^{-1} \Bigg[ \frac {sin(LAT2) - sin(LAT1)cos(d)}{cos(LAT1)sin(d)} \Bigg] \]

where:

LAT1 and LONG1 = coordinates of initial location in decimal degrees;

LAT2 and LONG2 = coordinates of second location in decimal degrees;

d = arc length between locations in decimal degrees;

AZM = angle between true north (0 degrees) and the connecting radial in decimal degrees in a clockwise direction.

In computing the above, sufficient decimal figures shall be used to determine the azimuth to the nearest degree.


Annex IV

Table I — VHF and UHF Co-channel Protection
ZONE I ZONE II
Channel Minimum
Co-channel
Separation
Maximum F(50,10)
Field Strength at Protected Maximum Contour
Minimum
Co-channel
Separation
Maximum F(50,10)
Field Strength at Protected Maximum Contour
2-6 offset carriers 275 km 38 dBu 305 km 32 dBu
2-6 non-offset carriers 371 km 21 dBu 411 kmTable note * 15 dBu
7-13 offset carriers 275 km 41 dBu 305 km 36 dBu
7-13 non-offset carriers 376 km 24 dBu 411 km* 19 dBu
14-69 offset carriers 250 km 46 dBu 280 km 41 dBu
14-69 non-offset carriers 353 km 29 dBu 387 km 24 dBu
Table II — UHF Protection Criteria For Assignments With Operating Parameters Greater Than 1000 kW ERP and/or 300 Metres EHAAT
Channel Relationship Maximum Separation
Requiring StudyTable note 1
Reference DistanceTable note 2 Maximum Field Strength
at Reference Distance
co-channel (one or both) stations in Zone I, with offset) 320 km 70 km 46 dBu
co-channel (neither station in Zone I, with offset) 350 km 70 km 41 dBu
±1 108 km 70 km 98 dBu
±2,3,5,8 45 km 15 km 103 dBu
±4 52 km 0 km 90 dBu
±7 121 km 48 km 78 dBu
±14 114 km 70 km 94 dBu
±15 145 km 70 km 77 dBu

Annex V — Figures 1 - 6

Figure 1 — Propagation Curves F(50,50) for Channels 2-6

Propagation Curves F(50,50) for Channels 2-6 (the long 

description is located below the image)
Description of Figure 1

The Figure 1 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 50% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the lower VHF band (channels 2-6). Each curve corresponds to a distance (between 1.5 km and 300 km). Each of these curves gives, for various Heights Above Average Terrain (HAATs), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -20 to +110 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 1 — Propagation Curves F(50,50) for Channels 2-6
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
1.5 93 95.5 97.65 99 99.8 100.4 100.8 101.1 102 102.4 102.8 102.9 103 103 103 103 103 103 103
2 87.8 90.3 92.35 93.9 95.1 95.9 96.55 97 98.4 99.1 99.8 100.1 100.25 100.35 100.4 100.45 100.5 100.6 100.7
3 80.8 83.2 85.25 86.9 88.15 89.2 90 90.7 93.15 94.6 95.8 96.35 96.6 96.7 96.75 96.8 96.9 96.95 97.15
4 75.7 78.25 80.3 81.95 83.3 84.4 85.35 86.15 89.1 90.9 92.6 93.4 93.85 94 94.1 94.2 94.3 94.3 94.3
5 72 74.3 76.3 78 79.5 80.6 81.6 82.5 85.8 87.8 90 91 91.5 91.7 91.8 91.9 91.95 92 92.15
6 69 71 73 74.7 76.2 77.4 78.5 79.4 82.85 85 87.5 88.8 89.5 89.9 90.1 90.3 90.4 90.5 90.7
7 66.35 68.4 70.4 72.1 73.55 74.75 75.8 76.8 80.25 82.6 85.4 86.9 87.65 88.15 88.5 88.7 88.85 89 89.4
8 64 66.2 68.2 69.85 71.25 72.45 73.5 74.45 78 80.3 83.6 85.25 86.1 86.7 87.1 87.4 87.6 87.8 88.15
9 62 64.2 66.2 67.8 69.2 70.35 71.45 72.45 75.85 78.3 81.6 83.4 84.5 85.2 85.7 86.1 86.4 86.6 87.15
10 60 62.4 64.35 66 67.35 68.5 69.6 70.5 74 76.45 79.85 81.8 83 83.8 84.35 84.8 85.15 85.4 86.25
15 53 55.3 57.25 58.95 60.3 61.5 62.5 63.4 67 69.55 73 75.35 77.2 78.6 79.6 80.35 80.9 81.25 82.5
20 48 50.1 52.1 53.75 55.2 56.3 57.3 58.3 61.8 64.4 67.9 70.35 72.35 73.9 75.2 76.15 76.85 77.4 79.65
30 40.5 42.75 44.75 46.5 47.9 49 50.05 51 54.5 57 60.6 63.25 65.35 67.1 68.6 69.7 70.6 71.5 75.3
40 35 37.2 39.1 40.6 42 43.1 44.2 45.15 48.7 51.2 54.9 57.5 59.75 61.8 63.5 64.7 65.75 66.65 70.5
50 30.1 32.3 34.2 35.8 37.25 38.4 39.4 40.3 43.8 46.35 49.95 52.7 55.2 57.3 59 60.35 61.5 62.45 66
60 26.6 28.3 29.75 31.1 32.4 33.5 34.5 35.4 39 41.65 45.2 48.1 50.9 53 54.6 55.95 57.05 57.95 61.6
70 23.3 24.6 25.9 27.1 28.2 29.2 30.2 31.1 34.6 37.1 40.9 44 46.9 48.9 50.4 51.7 52.8 53.7 57.5
80 20.35 21.4 22.5 23.5 24.5 25.45 26.35 27.25 30.5 32.9 36.65 39.75 42.8 44.85 46.45 47.75 48.8 49.75 53.5
90 17.75 18.5 19.3 20 20.8 21.55 22.3 23.05 26.2 28.6 32.3 35.3 38.35 40.55 42.25 43.6 44.7 45.65 49.35
100 15.5 16 16.6 17.2 17.85 18.45 19 19.6 22.4 24.7 28.3 31.2 34.3 36.65 38.5 39.9 41 41.9 45.3
110 13.35 13.9 14.45 14.95 15.45 15.95 16.45 16.95 19.25 21.3 24.65 27.35 30.5 33 34.95 36.45 37.5 38.4 42
120 11.4 11.9 12.3 12.75 13.2 13.65 14.1 14.55 16.5 18.2 21.25 24.05 27.05 29.55 31.4 32.8 33.85 34.75 38.35
130 9.5 9.9 10.3 10.7 11.1 11.5 11.95 12.35 14 15.4 18.3 21.15 23.95 26.3 28.05 29.4 30.4 31.2 35
140 7.7 8.15 8.55 8.95 9.3 9.7 10.1 10.45 11.95 13.3 15.75 18.5 21 23.1 24.85 26.1 27.1 27.95 31.8
150 5.9 6.4 6.8 7.2 7.55 7.9 8.25 8.6 10 11.25 13.5 16 18.3 20.2 21.8 23 24 24.9 29
160 4.1 4.6 5.1 5.5 5.9 6.25 6.6 6.9 8.2 9.5 11.6 13.6 15.6 17.4 18.9 20 21 22 26.2
170 2.5 3 3.5 3.9 4.3 4.65 5 5.3 6.6 7.7 9.7 11.7 13.4 15 16.3 17.5 18.6 19.6 23.9
180 1 1.5 2 2.4 2.75 3.1 3.4 3.7 4.9 5.95 7.9 9.65 11.25 12.75 14 15.15 16.2 17.2 21.5
190 -0.5 -0.1 0.35 0.75 1.15 1.5 1.8 2.1 3.2 4.3 6.2 7.8 9.2 10.6 11.8 13 14 15 19.5
200 -2.1 -1.6 -1.2 -0.75 -0.4 -0.05 0.3 0.6 1.8 2.8 4.5 6 7.35 8.6 9.75 10.8 11.85 12.8 17.35
220 -4.95 -4.6 -4.3 -3.95 -3.65 -3.3 -3 -2.65 -1.4 -0.35 1.4 2.8 4.2 5.35 6.4 7.45 8.45 9.45 13.65
240 -7.8 -7.55 -7.2 -6.85 -6.5 -6.15 -5.8 -5.5 -4.2 -3.25 -1.6 -0.2 1 2.15 3.2 4.25 5.2 6.15 10.75
260 -10.95 -10.55 -10.15 -9.75 -9.4 -9.1 -8.75 -8.45 -7.3 -6.3 -4.65 -3.3 -2.1 -0.9 0.2 1.25 2.25 3.25 7.75
280 -13.7 -13.3 -13 -12.65 -12.3 -11.95 -11.65 -11.35 -10.25 -9.3 -7.7 -6.25 -5 -3.8 -2.7 -1.65 -0.7 0.25 4.9
300 -16.3 -16 -15.65 -15.3 -15 -14.7 -14.4 -14.1 -13 -12 -10.45 -9.15 -7.95 -6.8 -5.7 -4.7 -3.75 -2.85 1.7
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1 kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Values
ERP Power in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB

Figure 2 — Propagation Curves F(50,10) for Channels 2-6

Propagation Curves F(50,10) for Channels 2-6 (the long 

description is located below the image)
Description of Figure 2

Figure 2 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 10% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the lower VHF band (channels 2-6). Each curve corresponds to a distance (between 15 km and 500 km). Each of these curves gives, for various Heights Above Average Terrain (HAAT), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -40 to +90 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 500.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 2 — Propagation Curves F(50,10) for Channels 2-6
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
15 53.15 55.6 57.65 59.35 60.65 61.8 62.85 63.75 67.4 69.9 73.5 75.8 77.7 79.15 80.25 81.1 81.65 81.95 83
20 48.65 50.8 52.75 54.4 55.8 57.05 58.1 59.15 62.65 65.2 68.6 71.15 73 74.65 76 76.95 77.7 78.2 80.25
30 42.35 44.55 46.35 47.85 49.25 50.35 51.35 52.35 55.95 58.45 62 64.6 66.65 68.5 69.95 71.05 72.05 72.9 76.5
40 38.6 40.5 42 43.4 44.6 45.6 46.6 47.5 50.8 53.25 56.9 59.7 62 63.7 65.15 66.35 67.4 68.4 72.4
50 35.9 37.55 39 40.2 41.15 42 42.85 43.65 46.8 49.15 52.75 55.7 58.3 60.05 61.45 62.6 63.65 64.6 68.8
60 33.7 35 36 37 37.85 38.6 39.3 40 43 45.3 49.2 52 54.5 56.4 57.9 59.1 60.1 61 65
70 31.75 32.7 33.55 34.25 34.95 35.6 36.2 36.85 39.55 41.7 45.3 48.4 51.05 53 54.5 55.8 56.85 57.8 62
80 30 30.7 31.3 31.85 32.4 32.9 33.4 33.95 36.4 38.5 41.9 45.1 47.8 49.8 51.4 52.7 53.8 54.8 59
90 27.85 28.5 29 29.45 29.85 30.3 30.75 31.25 33.4 35.3 38.6 41.8 44.75 46.8 48.25 49.5 50.6 51.6 56
100 26 26.5 26.9 27.3 27.7 28 28.4 28.8 30.8 32.6 35.5 38.8 41.8 43.8 45.3 46.55 47.7 48.7 53
110 24 24.5 24.95 25.3 25.7 26.1 26.45 26.8 28.5 29.9 32.5 36 39 41 42.55 43.8 44.9 45.8 50
120 22 22.5 23 23.4 23.8 24.2 24.55 24.9 26.4 27.75 30.05 33.5 36.3 38.3 39.7 40.95 42 42.9 47.1
1302020.621.1521.62222.422.723.0524.525.7528313435.837.0538.1539.1540.0544.1
14018.218.819.319.7520.220.5520.8521.222.623.82628.831.23334.2535.3536.2537.1541.4
15016.51717.4517.918.318.719.0519.420.821.9523.926.3528.7530.4531.7532.833.7534.6538.8
16014.6515.1515.616.116.5516.9517.317.651920.222.124.526.52829.230.2531.2532.1536.3
17012.8513.313.814.314.715.115.515.8517.318.520.322.32425.526.8527.952929.9534.1
1801111.51212.512.913.313.651415.5516.718.520.42223.424.6525.826.827.832
1909.19.710.210.711.111.511.8512.2513.714.8516.6518.520.0521.4522.723.824.925.930.1
2007.488.5599.459.810.1510.511.91314.916.718.219.620.821.95232428.1
22044.75.25.76.16.56.87.158.59.611.5513.314.816.117.2518.4519.520.524.8
2400.81.41.852.32.73.13.43.755.16.28.29.811.312.613.81516.117.121.5
260-2.3-1.75-1.35-0.9- 0.5-0.150.20.51.82.854.86.57.959.3510.5511.7512.8513.8518.4
280-5.1-4.7-4.25-3.85- 3.5-3.15-2.8-2.5-1.4-0.351.434.45.87.18.39.410.4515.1
300-7.9-7.45-7-6.6- 6.3-6-5.7-5.4-4.25-3.4-1.7-0.21.22.63.84.956711.6
320-10.2-9.8-9.5-9.15- 8.85-8.55-8.3-8.05-7.05-6.15-4.7-3.3-1.9-0.550.651.82.853.858.3
340-12.7-12.4-12-11.7- 11.4-11.15-10.9- 10.7-9.75-8.9-7.3-6-4.7-3.5-2.3-1.15-0.150.85.2
360-15.2-14.85-14.5-14.2- 13.9-13.65-13.4- 13.15-12.2-11.45- 9.9-8.7-7.4-6.2-5-4-3.1-2.12.1
380-17.75-17.3-16.9-16.6- 16.3-16.1-15.85- 15.65-14.8-14-12.4-11.2-10.1-9-8-7-6.1-5.15-1
400-20.1-19.7-19.3-19- 18.7-18.45-18.2-18-17.2-16.4-14.9-13.7-12.6-11.6-10.65-9.8-8.9-8.05-3.9
420-22.5-22-21.65-21.35- 21.1-20.85-20.65- 20.45-19.6-18.8- 17.2-16.2-15.2- 14.25-13.3-12.35- 11.55-10.7-6.6
440-24.95-24.5-24.1-23.8- 23.55-23.35-23.1- 22.9-21.9-21.05- 19.6-18.5-17.5- 16.6-15.7-14.8- 13.9-13.1-9.15
460-27.1-26.8-26.5-26.2- 25.9-25.65-25.4- 25.2-24.2-23.4-22-20.9-19.85-18.9-18-17.1-16.3-15.5-11.7
480-29.7-29.2-28.9-28.55- 28.25-28-27.75- 27.5-26.4-25.6- 24.15-23-22-21.1-20.25-19.5-18.7-17.95-14.1
500-31.9-31.5-31.2-30.9- 30.6-30.3-30-29.75-28.7-27.85-26.5-25.3-24.3-23.4-22.6-21.8-21.05-20.25-16.6
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1 kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Values
ERPPower in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB

Figure 3 — Propagation Curves F(50,50) for Channels 7-13

Propagation Curves F(50,50) for Channels 7-13 (the long 

description is located below the image)
Description of Figure 3

Figure 3 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 50% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the upper VHF band (channels 7-13). Each curve corresponds to a distance (between 1.5 km and 300 km). Each of these curves gives, for various Heights Above Average Terrain (HAATs), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -20 to +110 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 3 — Propagation Curves F(50,50) for Channels 7-13
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
1.5 95.8 98.35 100.5 101.65 102.1 102.3 102.4 102.5 102.6 102.75 102.8 103 103 103.05 103.05 103.1 103.1 103.1 103.15
290.893.3595.496.997.798.298.4598.699.199.499.85100.15100.25100.3100.4100.45100.5100.5100.75
383.9586.2588.49090.9591.792.292.6594.194.995.8596.396.696.7596.8596.95979797.15
478.881.2583.2584.858686.987.6588.2590.391.592.893.493.89494.194.294.2594.3594.55
574.9577.379.48182.383.2584.184.887.388.7590.1591.191.6591.9592.1592.2592.3592.492.45
671.974.176.2577.979.1580.2581.1581.984.6586.2587.958989.7590.290.4590.690.790.7590.8
769.271.473.775.376.6577.7578.679.4582.484.186.0587.3588.288.78989.1589.289.2589.35
866.969.1571.2572.974.375.476.477.380.482.284.585.9586.987.487.887.958888.0588.1
964.86769.170.8572.2573.3574.475.378.3580.382.984.5585.586.1586.5586.886.98787
1063.165.3567.256970.471.672.6573.576.8578.981.5583.284.284.9585.485.785.98686.15
1556.1558.3560.36263.464.665.766.6570.2572.775.8578.179.680.581.281.681.982.182.75
205153.3555.356.958.359.5560.6561.665.2567.6571.0573.775.57777.978.5578.979.1579.9
3043.7545.847.949.6551.152.2553.3554.2557.7560.2563.6566.8569.7571.8573.17474.674.9575.9
4037.940.14243.7545.2546.3547.348.351.954.4557.961.264.2566.3567.969.1569.8570.2571.45
503335.537.2538.840.241.342.343.34749.45356.2559.161.6563.464.665.3565.8567.35
6028.130.332.133.835.236.2537.3538.354244.447.851.2554.256.858.4559.760.4561.163
7024.2525.9527.52930.2531.3532.2533.253739.4542.946.449.552.153.855.1556.156.7558.9
8020.852223.224.2525.3526.3527.428.4532.2534.753841.7545.1547.9549.8551.1552.0552.7555
9018.151919.820.721.5522.3523.22427.53033.353740.543.4545.446.8547.748.450.9
10015.6516.251717.62518.2518.7519.3752023.2525.752932.7536.25394142.47543.544.2547
11013.51414.51515.51616.451719.521.72528.53234.7536.7538.139.1254043.3
12011.712.12512.512.87513.1513.513.914.416.518.2521.52528.53132.753435.13639.75
1309.7510.12510.510.87511.2511.6251212.3751415.518.521.524.527.2529.130.47531.632.536.1
14088.48.7759.159.59.87510.2510.612.0513.4516.118.7521.523.87525.626.9282932.6
1506.256.62577.47.7758.158.5258.910.2511.51416.2518.7520.7522.22523.4524.525.529.4
1604.654.955.45.756.156.456.757.18.69.7511.7513.81617.619.120.3521.3522.2526.35
1702.93.253.654.054.454.85.155.456.757.99.811.813.7515.316.517.718.719.723.95
1801.21.652.052.452.853.23.53.85.16.1589.8511.4512.9514.2515.416.417.421.8
190-0.350.10.50.91.31.6522.33.64.656.357.959.551112.2513.4514.4515.419.7
200-1.9-1.4-1-0.6- 0.250.10.40.71.934.86.357.759.1510.3511.412.413.3517.5
220-4.8-4.4-4-3.6- 3.25-2.9-2.6-2.25-1.1-0.051.83.254.555.756.87.858.89.713.75
240-7.6-7.35-6.95-6.6- 6.25-5.9-5.6-5.25-4.05-3-1.350.151.42.53.64.75.76.610.8
260-10.65-10.25-9.85-9.5- 9.15-8.8-8.5-8.2-7-5.95-4.25-2.95-1.7-0.60.51.552.53.457.6
280-13.5-13.15-12.75-12.4- 12.05-11.7-11.4- 11.1-9.9-8.9-7.2-5.8-4.7-3.6-2.5-1.45-0.450.454.75
300-16.2-15.75-15.4-15.1- 14.75-14.45-14.2- 13.95-12.8-11.85- 10.15-8.75-7.55- 6.45-5.4-4.35-3.4-2.51.85
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1  kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Values
ERP Power in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB

Figure 4 — Propagation Curves F(50,10) for Channels 7-13

Propagation Curves F(50,10) for Channels 7-13 (the long 

description is located below the image)
Description of Figure 4

Figure 4 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 10% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the upper VHF band (channels 7-13). Each curve corresponds to a distance (between 15 km and 500 km). Each of these curves gives, for various Heights Above Average Terrain (HAAT), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -40 to +90 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 500.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 4 — Propagation Curves F(50,10) for Channels 7-13
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
15 56.35 58.85 60.9 62.6 64 65.2 66.2 67.2 70.55 72.9 76.4 78.5 80 81.15 81.9 82.45 82.8 83 83.15
2051.854.15657.65960.2561.2562.2565.756871.574.2576.2577.678.679.2579.779.980.4
3045.447.5549.3550.952.253.354.455.458.7561.164.7568.270.872.75747575.5575.976.9
4041.543.2544.946.2547.548.549.4550.3553.7556.159.7636668.169.5570.6571.4571.973
5038.540.0541.542.6543.744.645.4546.3549.655255.658.7561.864.165.756767.868.369.6
6035.136.753839.1540.154141.842.645.647.951.454.757.76061.7563.0563.8564.466.25
7032.533.7534.7535.736.537.3538.0538.7541.7543.847.2550.553.656.2558.259.460.2560.963.1
8030.130.931.7532.533.233.834.43537.639.654346.549.752.854.856.155757.760.1
9027.828.5529.229.8530.3530.8531.3531.853435.9539.2542.846.449.2551.352.853.7554.5556.9
10025.826.426.9527.4527.9528.428.829.2531.132.936.0539.454345.954849.650.6551.553.9
11023.8524.452525.4525.8526.2526.652728.630.13336.339.6542.644.7546.347.3548.1551.05
12021.922.5523.0523.5523.9524.324.72526.527.7530.2533.436.439.241.3543.144.24547.9
1302020.5521.121.622.0522.4522.823.1524.625.727.930.7533.6536.13839.640.841.7544.95
14018.1518.7519.319.7520.1520.520.8521.2522.6523.6525.7528.353133.1534.836.237.338.2541.9
15016.2516.8517.417.918.318.71919.420.821.923.8526.228.2530.2531.8333434.938.9
16014.515.0515.616.0516.4516.8517.217.61920.122.05242627.72930.131.053236.15
17012.513.113.6514.1514.5514.915.315.717.118.2520.32223.925.426.727.828.829.7534
18010.7511.311.8512.312.7513.1513.513.8515.316.518.520.2521.923.324.5525.726.727.732
1909.19.610.1510.61111.3511.712.0513.514.7516.7518.520.0521.322.4523.624.5525.5530
2007.37.98.48.99.39.651010.311.7512.914.8516.6518.119.420.621.722.723.728.2
2203.94.555.455.856.256.66.958.259.311.3513.0514.61617.218.3519.3520.3524.7
2400.51.051.5522.42.753.13.454.85.9589.6511.1512.513.7514.9161721.35
260-2.45-2-1.55-1.15- 0.75-0.45-0.150.21.52.64.66.37.89.210.4511.6512.713.718.2
280-5.35-4.9-4.5-4.1- 3.75-3.45-3.15- 2.85-1.65-0.51.252.954.455.7578.259.3510.3514.9
300-8.15-7.7-7.25-6.9- 6.55-6.3-6-5.7-4.5-3.55-1.9-0.31.12.43.654.85.856.911.4
320-10.55-10.2-9.8-9.5- 9.25-9-8.7-8.4-7.3-6.4-4.75-3.35-2-0.750.451.552.63.68.2
340-13- 12.75-12.4-12.05- 11.75-11.5-11.25- 11-10-9.05-7.55-6.25-5-3.75-2.65-1.5-0.450.55.1
360-15.55-15.2-14.8-14.5- 14.25-13.95-13.7- 13.45-12.45-11.55- 10.05-8.75-7.55- 6.4-5.35-4.35-3.35-2.451.9
380-18.05-17.7-17.3-16.9- 16.65-16.35-16.05- 15.8-14.8-13.95- 12.5-11.25-10.1-9-8-7-6.1-5.2-1
400-20.35-20-19.65-19.35- 19.05-18.75-18.5- 18.25-17.25-16.5- 15.1-13.8-12.8- 11.75-10.75-9.8- 8.85-8-3.9
420-22.8-22.35-22-21.75- 21.45-21.2-20.95- 20.7-19.75-18.8- 17.35-16.15-15.2- 14.25-13.25-12.25- 11.4-10.55-6.6
440-25.1-24.7-24.35-24.05-23.8-23.5-23.25-23-22.05-21.25-19.8-18.65-17.6-16.65-15.7-14.75-13.85-13.05-9.2
460-27.35-27-26.7-26.45- 26.2-25.9-25.65- 25.4-24.5-23.7- 22.2-21-19.95-19-18-17.15-16.35-15.55-11.6
480-29.7-29.3-29-28.7- 28.45-28.2-27.95- 27.7-26.8-25.9- 24.5-23.25-22.25- 21.25-20.4-19.6- 18.75-18-14.15
500-32- 31.65-31.35-31- 30.75-30.5-30.25- 30-28.95-28-26.5-25.3-24.35-23.4-22.6-21.8-21-20.25-16.8
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1 kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Values
ERP Power in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB

Figure 5 — Propagation Curves F(50,50) for Channels 14-69

Propagation Curves F(50,50) for Channels 14-69 (the long 

description is located below the image)
Description of Figure 5

The Figure 5 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 50% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the UHF band (channels 14-69). Each curve corresponds to a distance (between 1.5 km and 300 km). Each of these curves gives, for various Heights Above Average Terrain (HAATs), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -20 to +110 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 1.5, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 5 — Propagation Curves F(50,50) for Channels 14-69
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
1.5 93.2 95.65 97.5 99 100 100.6 101.1 101.5 102.5 102.8 102.9 103 103.05 103.15 103.15 103.2 103.2 103.25 103.25
288.1590.5592.594.0595.195.996.59798.499.1599.8100.15100.35100.45100.5100.6100.65100.7100.7
381.2583.5585.587.1588.489.4590.2590.993.0594.3595.6596.2596.5596.896.99797.0597.197.25
476.2578.580.4582.183.4584.5585.4586.258990.592.393.293.659494.1594.2594.3594.494.75
572.2574.5576.5578.279.680.7581.7582.685.6587.4589.590.6591.391.759292.192.292.392.75
66971.4573.475.0576.577.6578.779.682.9584.9587.2588.4589.2589.79090.2590.490.5591.1
766.468.770.772.473.8757676.9580.3582.58586.487.487.9588.3588.6588.8589.0589.7
863.966.2568.269.8571.372.573.674.57880.258384.6585.786.3586.887.287.4587.6588.3
961.964.2566.2567.969.370.571.672.5576.0578.481.1582.98484.7585.3585.886.186.3587.2
106062.3564.466.167.5568.769.7570.7574.2576.679.4581.2582.583.484.0584.5584.985.286.05
1553.255.3557.459.160.4561.662.5563.567.169.67375.257778.1579.179.880.3580.7582
2047.85052.1553.8555.356.4557.4558.356264.46870.372.173.574.575.375.9576.4578.25
3040.2542.644.6546.3547.7548.955050.9554.3556.860.3562.864.7566.2567.4568.4569.369.9572.5
4032.935.13738.7540.1541.3542.443.346.7549.255355.85859.6560.96262.963.767
5026.3528.530.532.133.534.5535.636.554042.546.5549.952.253.955.1556.2557.2558.1562
60202223.725.226.427.4528.4529.3532.7535.2539.843.4546.0547.949.3550.551.552.4556.6
701617.518.920.121.121.9522.7523.526.62933.7537.7540.5542.54445.346.447.3551.8
8013.214.2515.316.116.917.618.218.821.223.3528.332.735.637.7539.440.741.8542.9547.5
9011.251212.6513.351414.5515.0515.617.7519.724.0528.1531.233.435.136.5537.7538.943.8
1009.49.9510.511.0511.511.9512.3512.8514.716.420.524.227.229.631.2532.73435.2540.5
1107.658.18.5599.459.8510.2510.712.313.817.120.5523.425.827.629.230.531.7537.25
1205.86.256.77.157.557.958.358.7510.211.514.4517.520.122.4524.225.7527.1528.434.1
1304.154.655.45.756.156.56.858.259.512.1514.71719.321.122.652425.3531.25
1402.52.93.33.654.054.44.756.37.49.9512.214.316.2518.0519.62122.328.2
1500.81.251.6522.352.733.34.55.67.759.911.7513.4515.116.651819.3525.3
160-0.8-0.350.050.40.711.31.62.83.95.857.759.51112.413.8515.216.522.75
170-2.15-1.75-1.35-1- 0.7-0.4-0.150.151.252.254.15.97.458.9510.311.6512.914.220
180-3.4-3-2.7-2.4-2.1-1.85-1.55-1.25-0.20.752.64.255.757.158.359.5510.711.8517.45
190-4.55-4.25-3.95-3.65- 3.4-3.15-2.9-2.65-1.65-0.651.12.654.055.46.67.78.759.8515.2
200-5.85-5.55-5.25-4.95- 4.7-4.45-4.25-4-3-2.1-0.50.952.253.54.75.756.757.7512.7
220-8.4-8.05-7.8-7.55- 7.35-7.15-6.9-6.7-5.75-4.9-3.4-2.2-1.05-0.050.951.92.853.758.35
240-10.8-10.5-10.25-10- 9.75-9.55-9.35- 9.15-8.25-7.4-5.95-4.75-3.7-2.7-1.8-0.95-0.10.74.55
260-13.35-13.05-12.8-12.55- 12.3-12.05-11.8- 11.6-10.6-9.75-8.3-7.1-6.05-5.1-4.25-3.4-2.6-1.851.9
280-15.9-15.55-15.25-15- 14.75-14.5-14.25- 14-13.05-12.2- 10.75-9.55-8.55- 7.65-6.8-6-5.25-4.4-0.6
300-18.45-18.05-17.75-17.45- 17.2-16.95-16.75- 16.5-15.6-14.75- 13.25-12-11-10.1-9.25-8.45-7.7-6.9-3.1
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1 kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Values
ERP Power in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB

Figure 6 — Propagation Curves F(50,10) for Channels 14-69

Propagation Curves F(50,10) for Channels 14-69 (the long 

description is located below the image)
Description of Figure 6

The Figure 6 is a graphic showing a set of curves which give in dBµV/m the estimated field strength exceeded at 50% of the potential receiver locations for at least 10% of the time for a receiving antenna height of 9.1 meters and a transmitter ERP of 1 kilowatt in the UHF band (channels 14-69). Each curve corresponds to a distance (between 15 km and 500 km). Each of these curves gives, for various Heights Above Average Terrain (HAATs), the corresponding estimated field strength at the given distance of the curve. The vertical axis is the estimated field strength and runs from -40 to +90 dBµV/m. The horizontal axis is the HAAT; its scale is logarithmic and runs from 30 to 1600 meters. There are 35 curves corresponding to the following distances (in km): 15, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 220, 240, 260, 280, 300, 320, 340, 360, 380, 400, 420, 440, 460, 480, 500.

The table below gives the field strength values corresponding to various HAAT values for each of these curves:

Annex V — Figure 6 — Propagation Curves F(50,10) for Channels 14-69
HAAT in meters →
Distance in km ↓ 30 40 50 60 70 80 90 100 150 200 300 400 500 600 700 800 900 1000 1600
15 53 55.5 57.5 59.25 60.75 62 63.1 64.05 67.6 70 73.35 75.7 77.25 78.5 79.25 79.85 80.3 80.7 82.25
2048.655152.854.455.7557585962.664.968.470.772.3573.6574.7575.6576.376.8578.8
3042.544.546.2547.754950515255.55861.3563.8565.867.268.2569.257070.7573.75
403839.3540.6541.9434444.8545.7549.0551.55557.859.8561.4562.763.7564.6565.468.5
5034.3535.336.237.0537.9538.8539.740.543.74649.752.554.7556.557.855959.960.7564.25
6031.3532.0532.7533.434.0534.735.353638.440.444.2547.4549.851.65354.255.2556.260
702929.5530.130.631.131.553232.534.5536.34043.1545.547.3548.950.251.2552.256.3
8026.927.4527.8528.328.729.1529.5529.9531.7533.2536.6539.641.943.745.246.447.548.553.1
902525.4525.926.3526.7527.227.5527.9529.630.933.736.638.940.742.243.544.645.6550.15
10023.123.552424.424.8525.2525.652627.5528.7313436.237.9539.4540.7541.94347.65
11021.2521.722.122.522.923.323.724.0525.626.728.7531.533.7535.5537.138.539.740.7545.4
12019.319.7520.220.6521.121.521.922.2523.724.8526.7529.2531.533.334.8536.2537.438.543.2
13017.51818.4518.919.3519.7520.120.4521.92324.927.229.23132.63435.236.2541
14015.7516.216.6517.117.5517.9518.3518.720.121.1523.125.152728.730.2531.6532.853438.75
15013.914.3514.815.2515.716.116.516.8518.2519.3521.323.2524.9526.5528.0529.430.631.736.7
16012.212.6513.113.513.914.314.715.0516.517.619.5521.3522.9524.525.927.228.3529.4534.45
17010.410.911.3511.7512.1512.5512.913.314.715.7517.719.521.122.523.8525.126.2527.332.3
1808.759.29.6510.110.510.8511.211.5512.8513.915.917.719.2520.621.852324.1525.230.35
1907.17.5588.458.89.29.559.911.1512.214.215.9517.4518.819.9521.0522.0523.1528.25
2005.55.96.356.757.17.57.858.29.510.5512.5514.315.817.118.219.2520.2521.326.25
2202.12.52.93.33.6544.354.76.057.29.1510.912.3513.614.715.7516.6517.622.1
240-1.15-0.75-0.400.40.71.051.352.753.95.97.58.9510.1511.2512.2513.214.0518.2
260-4.15-3.75-3.35-2.95- 2.6-2.3-1.95-1.6-0.40.72.64.25.656.988.959.910.7514.7
280-7- 6.6-6.2-5.8-5.5-5.2-4.9-4.6-3.4-2.3-0.51.052.353.64.655.656.557.4511.35
300-9.65-9.3-8.9-8.55- 8.25-7.95-7.7-7.45-6.25-5.2-3.5-2-0.750.351.42.33.154.057.95
320-12.25-11.85-11.45-11.15- 10.85-10.6-10.35- 10.1-8.95-7.95-6.3-4.95-3.75-2.7-1.65-0.750.10.954.7
340-14.8-14.35-14-13.7- 13.45-13.2-12.95- 12.7-11.6-10.6-9-7.65-6.45-5.35-4.4-3.5-2.65-1.852
360-17.25-16.85-16.5-16.2- 15.9-15.6-15.35- 15.1-14.1-13.2- 11.7-10.35-9.15- 8.05-7.1-6.2-5.4-4.6-0.8
380-19.7-19.25-18.9-18.6- 18.3-18-17.75-17.5-16.45-15.6-14.25-12.9-11.75-10.7-9.8-8.95-8.15-7.4-3.8
400-22.1-21.7-21.35-21- 20.7-20.45-20.2- 19.95-18.85-18- 16.7-15.45-14.3- 13.25-12.3-11.45- 10.7-9.95-6.25
420-24.35-24-23.65-23.3- 23-22.75-22.5- 22.25-21.15-20.3- 19-17.8-16.7-15.75-14.85-14-13.25-12.5-8.75
440-26.6-26.3-25.95-25.6- 25.3-25-24.8-24.55-23.55-22.65-21.4-20.2-19.2-18.25-17.35-16.55-15.75-15-11.25
460-28.7-28.45-28.15-27.8- 27.5-27.25-27- 26.75-25.85-25- 23.75-22.6-21.6- 20.7-19.85-19.05- 18.25-17.45-13.6
480-30.6-30.4-30.1-29.85- 29.6-29.35-29.1- 28.85-28-27.3-26.1-25-24-23.1-22.25-21.45-20.65-19.85-15.85
500-32.5-32.25-32-31.8- 31.6-31.4-31.2-31-30.2-29.55-28.35-27.3-26.4-25.5-24.65-23.85-23.05-22.2-18
Field Strength in dB above 1 µV/m for 1 kW ERP

At the right of the graphic, there is a scale for the conversion of the ERP from Watts to dBs above 1 kW. The ERP in dBs above 1 kW is equal to ten times the logarithm of the ERP in kW. The table below shows the reference values from the scale:

Reference Valules
ERPPower in dB over 1 kW
1 Watt-30 dB
10 Watts-20 dB
100 Watts-10 dB
1 kilowatts0 dB
10 kilowatts10 dB
100 kilowatts20 dB
1 Megawatts30 dB
10 Megawatts40 dB
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