Center Loaded Antennas
A loading coil or load coil is a coil (inductor) that does not provide coupling to any other circuit, but is inserted in a circuit to increase its inductance. The term originated in the 19th century for inductors used to prevent distortion in submarine telegraph cables. Loading coils are still used in long cables. The term is also used for inductors in antennas, or between the cb antenna and its feedline, to make an electrically short antenna resonant at its operating frequency...voice circuit's ,, a loading coil or load coil is a coil (inductor) that does not provide coupling to any other circuit, but is inserted in a circuit to increase its inductance. The term originated in the 19th century for inductors used to prevent distortion in submarine telegraph cables. Loading coils are still used in long cables. The term is also used for inductors in antennas, or between the antenna and its feedline, to make an electrically short antenna resonant at its operating frequency.