I have the ARRL's Vertical Antenna Classics V3, and there's an article entitled "Phased Verticals with Continuous Phase Control" by KZ3K (Peter Anderson). The article details the use of a frequency-a
A friend of mine built a QRO version of this unit for a local DXer. I saw the unit when we toured this fellows shack a few months ago. It peaked my curiousity as I have always wanted to build a unit
I don't think the KZ3K method does anything to keep the currents on the two verticals equal. A better approach is to look at the W1MK method for achieving an arbitrary phase shift and current splitt
Phased antennas that are fed exactly in-phase or out-of-phase (zero or 180 degree) no longer have the impedance they have when used alone. The only exception is when very high losses swamp out mutua