What about radials above the ground? Like what I'm planning to install --- base of the vertical at around 5' to 6' above ground and slope all of the radials from that 5' or 6' point down to the ground? Jim R. K9JWV
> From: [email protected] > To: [email protected] > Date: Fri, 4 May 2012 19:10:56 -0500 > CC: [email protected] > Subject: Re: Topband: Fwd: radals fer 160m vertcal > > Bud, W2RU wrote: > > > 3. Using radials that are longer than a vertical (of reasonable > > electrical length) is tall simply wastes a lot of money (and real estate). > > Those tending toward such beliefs should be interested in the clip at the > link below, as well as the BL&E study linked earlier in this thread. > > Note the logical conclusions therefrom that the radiation efficiency of > every vertical monopole system of every electrical height depends on the > loss of the r-f ground reference against which it is driven. > > These data show that for monopole heights no matter how short in electrical > wavelength, system radiation efficiency using buried radials is dependent on > the r-f loss in the circular surface area at/just below the surface of the > earth within ~1/2-wavelength radius of such monopoles. > > In fact, the shorter the electrical heights of such monopoles, the more > important such r-f loss becomes toward defining the radiation efficiency of > those electrically short monopole systems. > > http://i62.photobucket.com/albums/h85/rfry-100/GroundCurrentNearMonopole.gif > > _______________________________________________ > UR RST IS ... ... ..9 QSB QSB - hw? BK _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
