> Au contrair! See work by N6LF, which strongly suggests
> that there are resonance effects, especially with only
> a few radials.
The only resonance effects occur when the radial system is
insufficient to provide a proper return. No matter the
length of the radials, when there are enough radials that
the spacing between the ends is less than the 0.03 wave
rule of thumb. A four or eight radial system is never
going to behave a non-resonant (on/in ground system).
> -----Original Message-----
> From: Jim Brown [mailto:firstname.lastname@example.org]
> Sent: Sunday, December 28, 2008 4:20 PM
> To: email@example.com; firstname.lastname@example.org
> Cc: AD5VJ Bob; email@example.com
> Subject: RE: Topband: Matching Transformer
> On Sun, 28 Dec 2008 12:27:17 -0500, Joe Subich, W4TV wrote:
> >> Here it is:......a ROG or radial on ground (attached only to
> >> the tower ground) gains some length due to the VF laying on
> >> earth.....this allows for shorter radials that appear to be
> >> at RF longer.
> >Radials on the ground are not resonant. In that application
> >you don't care about resonance as they are simply a device
> >for collecting the return currents and increasing conductivity
> >in the ground. Quite simply, with on/in ground radials, it is
> >the area they cover that is important ... not whether they are
> Au contrair! See work by N6LF, which strongly suggests that there
> are resonance effects, especially with only a few radials.
> Jim K9YC
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