When using a ground mounted vertical HF antenna, what can you do to reduce ground losses?

A ground-mounted vertical antenna acts as a quarter-wave monopole, needing the earth to act as the other half of the antenna system. Natural soil often has poor conductivity, leading to high electrical resistance and significant ground losses where RF energy turns into heat instead of a radiated signal. By installing a wire ground system, known as radials, at the base of the antenna, you create an artificial, highly conductive ground plane. This drastically reduces the resistance of the return currents, ensuring that more of your transmitter's power is actually radiated into the air. Options like changing insulators or just improving the impedance match do not address the physical resistance of the earth itself. Elevating the antenna without radials merely creates an inefficient radiator unless an elevated radial system is used.