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Why is a ground-mounted vertical quarter-wave antenna in reasonably open surroundings better for long distance contacts than a half-wave dipole at a quarter wavelength above ground?
The vertical radiation angle is lower
A quarter-wave vertical over good ground typically has a lower angle of radiation compared to a horizontal dipole placed only a quarter-wavelength high. Lower takeoff angles are generally better for long-distance (DX) ionospheric propagation.
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