RADAR BASICS - UAH

If we denote the effective radiated power as and realize that the surface area of a sphere of radius is we can write the power density on the surface of the sphere as. (9) If we equate (8) and (9) we obtain (10) as the effective radiated power, or ERP. Many radar analysts think that the power at the output of a radar antenna is the ERP. IT IS NOT. ................
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