Yes, the coil inductance would reduce the antenna length. Also it would change
the antenna impedance. To accommodate all related factors people usually use
ferrite bar with two windings - the primary to the monopole antenna, and the
secondary to an amplifier.
Barry Ma
Anrutsu Comany
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That will work, but the electrical length of the "tail" will change due to
the inductance of the coil you're winding... This method has been used
to produce shorter antenna elements in the HF (3-30MHz) region with some
success; however, shorter antenna elements generally also mean loss rather
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