My tower is 54 ft and shunt fed using an omega match. I had 11 elements
between 3 antennas. One of the antennas, a 3 element, was replaced with
a 7 element for a new total of 15. Some of the replaced elements were
plumbers delight. All of the newer ones were not.
With the additional elements, the omega match setting for 160m didn't
change at all.
Rather than agonize and analyze the effects of top loading, the easiest
thing to do is just try the existing setup and see how it works. You
can always do tower work later.
73, Steve WB6RSE
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