NaBloPoMo – Communications: The Marconi Antenna

Well perhaps the most widespread antenna in use is the Marconi Antenna.  What is that one asks.  The Marconi antenna is one which “works” against ground as opposed to the Hertz antenna which is ground independent.

Guglielmo Marconi is credited with inventing radio or at least showing it was practical.  I go with the practical.  One thing he did realize early on which others did not is the importance of the antenna in radio work.  His antenna was a 1/4 wave ground plane antenna.  Hertz who showed radio waves existed and thus Maxwell was right used a dipole (1/2 wavelength).

With the long wavelengths in use in the late 1800s,  the Marconi Antenna was the most practical.  And they are everywhere.  It is a metallic object 1/4 wavelength in length positioned vertically over a ground plane as the ground!

The most common one is no further than the aerial on your automobile.

Mine for shortwave is considerably taller and I improved the “ground plane” by adding about 300 feet of copper wire to the yard:

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2 Responses to NaBloPoMo – Communications: The Marconi Antenna

  1. Lauri says:

    The stuff you know is astounding! 🙂

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