This recording documents the effectiveness of vertical antennas at inland locations. It is cited in Chapter 17.
Elevate Radial Systems
In this case, a pair of phased verticals are elevated 12 feet above ground and rigged with 25 elevated counterpoise wires 1/4-wavelength long. This distributes return currents equally amongst wires in each counterpoise system.
16 Counterpoise Wires
When phasing a pair of elevated verticals, it is important to not use two or four elevated wires; a minimum of sixteen (16) are required. This enhances mutual coupling between the two vertical radiators by distributing return currents symmetrically in their respective counterpoise systems. Very important.
Perturbations of Soil Conditions
In the case of the pair heard in the recording, both verticals would not tune properly when using two and four elevated wires—let alone exhibit textbook characteristics when phased. This may have been due to perturbations in the soil conditions under the counterpoises exasperate…
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