On 10/1/2013 12:44 PM, Richards wrote:
I am NOT being critical or picky, but just for my edification, are the
numbers you quote dBi or dBd or something else?
The dB reference was for a dipole mounted at exactly the same point as
the beam. The result is particularly useful, because "ground gain"
(that is, the addition of the ground reflection to the direct signal) is
cancelled out.
I see this as a particularly useful way to present the data -- that is,
it answers the question, "if I replace my dipole with X beam, how much
louder will I be?" And they also answer the question, "how does X beam
compare with Y beam under the same conditions?"
73, Jim K9YC
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