Calculation of Azimuth Clause Samples

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)] AZM = cos [ ] 2.3 Calculate the azimuth. (If the second location is west of the initial location, subtract the result from 360E; i.e., 360 - AZM). -1 sin(LAT2) - sin(LAT1) cos(d) cos(LAT1) sin(d) LAT1 & LONG1 = coordinates of initial location in decimal degrees; LAT2 & 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. VHF and UHF Co-channel Protection ZONE I ZONE II Maximum Maximum Minimum F(50,10) Field Minimum F(50,10) Field Channel Co-channel Strength at Co-channel Strength at Separation Protected Separation Protected Contour Contour 2-6 offset carriers 275 km 38 dBu 305 km 32 dBu 2-6 non-offset carriers 371 km 21 dBu 411 km1 15 dBu 7-13 offset carriers 275 km 41 dBu 305 km 36 dBu 7-13 non-offset carriers 376 ▇▇ ▇▇ ▇▇▇ ▇▇▇ ▇▇▇ 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 1 Since the maximum coordination distance under this Arrangement is 400 km from the border, stations beyond that distance need not be coordinated. 300 Metres EHAAT Channel Relationship Maximum Separation Requiring Study1 Reference Distance2 Maximum Field Strength at Reference Distance co-channel (one or both) stations in Zone I, with offset) 320 ▇▇ ▇▇ ▇▇ ▇▇ ▇▇▇ ▇▇-▇▇▇▇▇▇▇ (▇▇▇▇▇▇▇ station in Zone I, with offset) 350 ▇▇ ▇▇ ▇▇ ▇▇ ▇▇▇ ±▇ ▇▇▇ ▇▇ ▇▇ ▇▇ 98 dBu ±2,3,5,8 ▇▇ ▇▇ ▇▇ ▇▇ ▇▇▇ dBu ±4 52 ▇▇ ▇ ▇▇ ▇▇ ▇▇▇ ±▇ ▇▇▇ ▇▇ ▇▇ ▇▇ 78 dBu ±14 114 ▇▇ ▇▇ ▇▇ ▇▇ ▇▇▇ ±▇▇ ▇▇▇ ▇▇ ▇▇ ▇▇ 77 dBu 1 The separations in this column were calculated based on maximum parameters of 5,000 kW ERP and 600 metres EHAAT for the proposal. 2 The reference distances are based on standard parameters of 1,000 kW ERP and 300 metres EHAAT. + Plus ▇▇ ▇▇▇ - ▇▇▇▇▇ ▇▇ ▇▇▇ + 10 kHz au-dessus de la porteuse - 10 kHz au-dessous de la porteuse Table A ! Tableau A ALBERTA City/Ville Canal/VHF/Channel Canal/UHF/Channel ...