Approximate Distance to 0.5MV/M (54 DBU) Contour
Courtesy of Electronic Research, Inc.
7777 Gardner Road
Chandler, IN 47610
(812) 925-6000
| Antenna | O.OlkW | O.lkW | 0.5kW | lkW | 1.5kW | 3kW | 6kW | lOkW | 25kW | 5OkW | lOOkW |
| H.A.A.T. | -2OdBK | -lOdBK | -3dBK | OdBK | 1.8dBK | 4.8dBK | 7.8dBK | lOdBK | 14dBK | 17dBK | 2OdBK |
| (in feet) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) | (in miles) |
| 100 | 2.9 | 5.1 | 7.6 | 9.0 | 9.9 | 11.7 | 13.8 | 15.6 | 19.3 | 22.6 | 26.3 |
| 150 | 3.5 | 6.3 | 9.4 | 11.2 | 12.3 | 14.5 | 17.0 | 19.0 | 23.2 | 26.8 | 30.7 |
| 200 | 4.0 | 7.3 | 10.9 | 12.9 | 14.1 | 16.6 | 19.3 | 21.6 | 26.0 | 29.8 | 33.9 |
| 250 | 4.5 | 8.1 | 12.1 | 14.3 | 15.7 | 18.3 | 21.2 | 23.6 | 28.3 | 32.2 | 36.3 |
| 300 | 4.9 | 8.9 | 13.2 | 15.5 | 17.0 | 19.8 | 22.9 | 25.3 | 30.2 | 34.2 | 38.4 |
| 350 | 5.3 | 9.6 | 14.2 | 16.6 | 18.2 | 21.1 | 24.3 | 26.9 | 31.9 | 35.9 | 40.3 |
| 400 | 5.7 | 10.3 | 15.1 | 17.7 | 19.3 | 22.3 | 25.6 | 28.3 | 33.4 | 37.5 | 41.9 |
| 450 | 6.1 | 10.9 | 15.9 | 18.6 | 20.3 | 23.4 | 26.8 | 29.5 | 34.7 | 39.0 | 43.4 |
| 500 | 6.4 | 11.5 | 16.7 | 19.5 | 21.2 | 24.5 | 28.0 | 30.7 | 36.0 | 40.3 | 44.8 |
| 550 | 6.7 | 12.0 | 17.5 | 20.3 | 22.1 | 25.4 | 29.0 | 31.8 | 37.2 | 41.5 | 46.1 |
| 600 | 7.0 | 12.6 | 18.2 | 21.1 | 23.0 | 26.3 | 30.0 | 32.9 | 38.3 | 42.7 | 47.3 |
| 650 | 7.3 | 13.1 | 18.9 | 21.9 | 23.8 | 27.2 | 30.9 | 33.8 | 39.4 | 43.8 | 48.4 |
| 700 | 7.6 | 13.6 | 19.5 | 22.6 | 24.5 | 28.1 | 31.8 | 34.8 | 40.4 | 44.8 | 49.5 |
| 750 | 7.8 | 14.0 | 20.2 | 23.3 | 25.3 | 28.9 | 32.7 | 35.7 | 41.3 | 45.8 | 50.5 |
| 800 | 8.1 | 14.5 | 20.8 | 24.0 | 26.0 | 29.6 | 33.5 | 36.5 | 42.2 | 46.8 | 51.5 |
| 850 | 8.4 | 14.9 | 21.4 | 24.6 | 26.7 | 30.4 | 34.3 | 37.3 | 43.1 | 47.7 | 52.4 |
| 900 | 8.6 | 15.3 | 21.9 | 25.3 | 27.3 | 31.1 | 35.1 | 38.1 | 43.9 | 48.6 | 53.3 |
| 950 | 8.8 | 15.8 | 22.5 | 25.9 | 28.0 | 31.7 | 35.8 | 38.9 | 44.8 | 49.4 | 54.2 |
| 1000 | 9.1 | 16.2 | 23.0 | 26.4 | 28.6 | 32.4 | 36.5 | 39.6 | 45.5 | 50.2 | 55.0 |
| 1050 | 9.3 | 16.6 | 23.5 | 27.0 | 29.2 | 33.1 | 37.2 | 40.3 | 46.3 | 51.0 | 55.8 |
| 1100 | 9.5 | 16.9 | 24.0 | 27.6 | 29.7 | 33.7 | 37.8 | 41.0 | 47.0 | 51.7 | 56.6 |
| 1150 | 9.7 | 17.3 | 24.5 | 28.1 | 30.3 | 34.3 | 38.5 | 41.7 | 47.7 | 52.4 | 57.3 |
| 1200 | 9.9 | 17.7 | 25.0 | 28.6 | 30.9 | 34.9 | 39.1 | 42.3 | 48.4 | 53.1 | 58.1 |
| 1250 | 10.1 | 18.0 | 25.5 | 29.1 | 31.4 | 35.4 | 39.7 | 43.0 | 49.0 | 53.8 | 58.7 |
| 1300 | 10.3 | 18.4 | 25.9 | 29.6 | 31.9 | 36.0 | 40.3 | 43.6 | 49.7 | 54.5 | 59.4 |
| 1350 | 10.5 | 18.7 | 26.4 | 30.1 | 32.4 | 36.5 | 40.8 | 44.1 | 50.3 | 55.1 | 60.1 |
| 1400 | 10.7 | 19.0 | 26.8 | 30.6 | 32.9 | 37.0 | 41.4 | 44.7 | 50.9 | 55.7 | 60.7 |
| 1450 | 10.9 | 19.4 | 27.2 | 31.0 | 33.4 | 37.6 | 41.9 | 45.3 | 51.5 | 56.3 | 61.3 |
| 1500 | 11.0 | 19.7 | 27.6 | 31.5 | 33.8 | 38.1 | 42.5 | 45.8 | 52.0 | 56.9 | 61.9 |
| 1550 | 11.2 | 20.0 | 28.0 | 31.9 | 34.3 | 38.5 | 43.0 | 46.3 | 52.6 | 57.5 | 62.5 |
| 1600 | 11.4 | 20.3 | 28.4 | 32.3 | 34.7 | 39.0 | 43.5 | 46.9 | 53.1 | 58.0 | 63.1 |
| 1650 | 11.6 | 20.6 | 28.8 | 32.8 | 35.2 | 39.5 | 44.0 | 47.4 | 53.6 | 58.6 | 63.6 |
| 1700 | 11.7 | 20.9 | 29.2 | 33.2 | 35.6 | 39.9 | 44.4 | 47.8 | 54.2 | 59.1 | 64.2 |
| 1750 | 11.9 | 21.2 | 29.6 | 33.6 | 36.0 | 40.4 | 44.9 | 48.3 | 54.7 | 59.6 | 64.7 |
| 1800 | 12.0 | 21.5 | 29.9 | 34.0 | 36.4 | 40.8 | 45.3 | 48.8 | 55.1 | 60.1 | 65.2 |
| 1850 | 12.2 | 21.7 | 30.3 | 34.4 | 36.8 | 41.2 | 45.8 | 49.2 | 55.6 | 60.6 | 65.7 |
| 1900 | 12.3 | 22.0 | 30.6 | 34.7 | 37.2 | 41.6 | 46.2 | 49.7 | 56.1 | 61.0 | 66.2 |
| 1950 | 12.5 | 22.3 | 31.0 | 35.1 | 37.6 | 42.0 | 46.6 | 50.1 | 56.5 | 61.5 | 66.6 |
| 2000 | 12.6 | 22.6 | 31.3 | 35.5 | 38.0 | 42.4 | 47.0 | 50.5 | 56.9 | 61.9 | 67.1 |
| 2050 | 12.8 | 22.8 | 31.6 | 35.8 | 38.3 | 42.8 | 47.4 | 50.9 | 57.4 | 62.4 | 67.5 |
| 2100 | 12.9 | 23.1 | 32.0 | 36.2 | 38.7 | 43.2 | 47.8 | 51.3 | 57.8 | 62.8 | 68.0 |
| 2150 | 13.1 | 23.3 | 32.3 | 36.5 | 39.1 | 43.6 | 48.2 | 51.7 | 58.2 | 63.2 | 68.4 |
| 2200 | 13.2 | 23.6 | 32.6 | 36.8 | 39.4 | 43.9 | 48.6 | 52.1 | 58.6 | 63.6 | 68.8 |
| 2250 | 13.3 | 23.8 | 32.9 | 37.2 | 39.7 | 44.3 | 48.9 | 52.5 | 59.0 | 64.0 | 69.2 |
| 2300 | 13.5 | 24.0 | 33.2 | 37.5 | 40.1 | 44.6 | 49.3 | 52.8 | 59.3 | 64.4 | 69.6 |
| 2350 | 13.6 | 24.3 | 33.5 | 37.8 | 40.4 | 45.0 | 49.7 | 53.2 | 59.7 | 64.8 | 70.0 |
| 2400 | 13.7 | 24.5 | 33.8 | 38.1 | 40.7 | 45.3 | 50.0 | 53.5 | 60.1 | 65.1 | 70.4 |
| 2450 | 13.8 | 24.7 | 34.1 | 38.4 | 41.0 | 45.6 | 50.3 | 53.9 | 60.4 | 65.5 | 70.7 |
| 2500 | 14.0 | 25.0 | 34.4 | 38.7 | 41.3 | 45.9 | 50.7 | 54.2 | 60.7 | 65.8 | 71.1 |
| 2550 | 14.1 | 25.2 | 34.6 | 39.0 | 41.6 | 46.2 | 51.0 | 54.5 | 61.1 | 66.2 | 71.4 |
| 2600 | 14.2 | 25.4 | 34.9 | 39.3 | 41.9 | 46.6 | 51.3 | 54.9 | 61.4 | 66.5 | 71.8 |
| 2650 | 14.3 | 25.6 | 35.2 | 39.6 | 42.2 | 46.9 | 51.6 | 55.2 | 61.7 | 66.8 | 72.1 |
| 2700 | 14.4 | 25.8 | 35.4 | 39.9 | 42.5 | 47.1 | 51.9 | 55.5 | 62.0 | 67.2 | 72.4 |
| 2750 | 14.5 | 26.0 | 35.7 | 40.1 | 42.8 | 47.4 | 52.2 | 55.8 | 62.3 | 67.5 | 72.8 |
| 2800 | 14.6 | 26.2 | 35.9 | 40.4 | 43.1 | 47.7 | 52.5 | 56.1 | 62.6 | 67.8 | 73.1 |
| 2850 | 14.8 | 26.4 | 36.2 | 40.7 | 43.3 | 48.0 | 52.8 | 56.3 | 62.9 | 68.1 | 73.4 |
| 2900 | 14.9 | 26.6 | 36.4 | 40.9 | 43.6 | 48.3 | 53.0 | 56.6 | 63.2 | 68.4 | 73.7 |
| 2950 | 15.0 | 26.8 | 36.7 | 41.2 | 43.9 | 48.5 | 53.3 | 56.9 | 63.5 | 68.6 | 74.0 |
| 3000 | 15.1 | 27.0 | 36.9 | 41.4 | 44.1 | 48.8 | 53.6 | 57.2 | 63.8 | 68.9 | 74.3 |
H.A.A.T. is height above average terrain at the center of radiation of the antenna array.
These values represent an estimate based upon theoretical wave propagation theory. The estimates do not recognize site specific considerations including topography, refraction, reflection, interference, diffraction, absorption, scattering, fresnel zone clearance, grazing or Brewster angle problems.
