In a message dated 07-12-97 IVY IVERSON wrote to JEFF EDMONSON:
 II> Remember, the majority of the radiation fro a transmitting antenna is
 II> at the highest-voltage point, in other words, the unfed end(s).
  Ivy-
     I wish Wayne was here to tackle this one.  As I recall from my Antennas
class almost 30 years ago, current is what causes radiation.  Signal strength
at a distance from a wire antenna, is related to the integral (summation) of
the differential current flowing in the wire, taking distance and angle
(relative phase) into consideration.
     Approximately two thirds of the radiation comes from the central third
of a dipole.  An end-loaded dipole shortened as much as two thirds, may be
within a couple dBs of a half-wave dipole.  The "Inverted Vee" dipole is
based on the idea that it is best to have the high current portion of the
antenna (center) higher than the low current portion (ends), if you can't
have the whole antenna high.
     73, Fred, K4DII
 -> Alice4Mac 2.4.4 E QWK Eval:30Sep95 
Origin: Alice strikes back @
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