115 dBu contour
The FCC provided formula for determining the radius of the 115 dBu contour is:
R = .245 times the square root of the ERP in KW. Therefore,
- 3 kw, (2,240 feet)
- 6 kw, (3,168 feet)
- 50kw, (1.73 miles)
- 100kw, (2.45 miles)
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