Topband: cone of silence COS

Bill Tippett btippett at alum.mit.edu
Wed May 11 10:45:14 EDT 2005


K1GUN:
 >correct length to be considered in the cone of silence length?

http://www.eham.net/articles/503

         If you want a *really* good cone of silence,
phase two of ANY length in end-fire mode.  I'm sure
there is some merit to the COS lengths for single
Beverages, but F/R is nowhere close to performance
of end-fire phased Beverages.  An end-fire system is
only ~130' longer and 20-30' wider than a single
Beverage of the same length.  You can use any
length you want since the rejection comes from
the phasing, not special COS lengths.

                                         73,  Bill  W4ZV



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