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30m Projects - Antennas

Click to enlargeDipolo Rotativo per 30/40 Mt da IK4DCS
Dopo aver fatto la verticale per 30/40 mt,e considerandone l'ottimo funzionamento, ho voluto riprendere il discorso del dipolo direttivo, gią visto all'inizio di questa autocostruzione.

Click to enlargeMagnetic Loop Antenna by 7N3WVM
Although a magnetic loop antenna is very compact, its efficiency is close to a half-wavelength dipole if carefully built. The key point is to make the loop element with material of low ohmic resistance.

Creation date : 12/08/2007 @ 19:30
Last update : 18/09/2015 @ 14:10
Category : 30m Projects
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