>"Another technique that is often used for matching is to make the wires much
>longer than resonant (that is, resonant around the top of the BC band), so
>that the feedpoint Z is 50 +jX ohms (that is, inductive) on 160M, and tune the
>capacitance out by adding a capacitor of equal value in series. NEC can
>easily model this."
When over-resonating with a long T-top, the maximum current point moves away
from the ground and up toward the center of the vertical radiator -- another
benefit. Unless there's a deliberate need to resonate on the operating
frequency (e.g., with some phased arrays), then over-resonating a single T-top
vertical radiator should be the objective, subject to the availability of long,
tall supports on either side of the vertical section.
Paul, W9AC
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