>"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 _________________ Topband Reflector Archives - http://www.contesting.com/_topband
