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It's just like the old days with the CB Antenna's with ratings that no-one could believe (or attain).
Yep, like the 3 ft. long base-loaded whips advertising some silly gain figure such as 8dBd, although most of them (if they used a reference at all [Linked Image] ) used dBi -- That extra couple of dB using an isotropic as the reference makes it look so much better. [Linked Image]

P.S. For you non-RF guys, an isotropic is a theoretical point-source antenna which radiates equally well in all directions. A plot of points of equal field strength would yield a sphere. By contrast, the standard vertical dipole radiates equally well in all compass directions, but with reduced power upward and downward. The field-strength plot would resemble a very flat and wide donut with the antenna standing in the hole.



[This message has been edited by pauluk (edited 05-15-2005).]