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Old August 18th 04, 09:00 PM
Richard Clark
 
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On Wed, 18 Aug 2004 14:37:34 -0500, "Ken Luther"
wrote:

what purpose does the REFLECTOR server during RECEIVE???


Hi Ken,

Antennas work the same in both directions, so to speak. The reflector
and directors offer the same benefits to both receive and transmit.
In a sense they distort the medium around them to present variations
in phase such that they add/subtract in a convergence with the
"driven" element. They are the optical equivalent of lens elements in
a complex lens which aid in correcting aberrations and
enhancing/increasing magnification.

In isolation, the reflector for a receiver acts as a shield blocking
signals arriving from behind the reflector. The success of that
blocking action is not complete, but through spacing with the driven
element can produce a range of responses which are offset by other
considerations (like matching impedance) varying along with those
changes.

73's
Richard Clark, KB7QHC