[TowerTalk] Re: One more ground radial question
Jan Erik Holm
sm2ekm at telia.com
Thu Dec 18 18:16:13 EST 2003
Yes but 4 wl long you will start to "modify" the
far field and brewster angle would get smaller.
What you then did would not be relevant for anything
but your QTH, i e your type of far field...conductivity
etc etc.
If we consentrate only on the near field I still
wounder if you really can benefit much from haveing
more radials in one direction (i e 5 or 10 degree sector
forexample), I´m not convinced.
If so you could stretch the example further. Lets say
someone just likes to work one direction, he then
puts lets say 90% of the radials in that direction,
well well....no I´m not convinced.
73 Jim SM2EKM
-------------------------
Richard Karlquist wrote:
> I put up a 20 meter vertical with closely
> spaced radials 4 wavelengths long spread over about
> 60 degrees centered on Europe. I A/B'ed it
> with an ordinary vertical. The vertical with the
> long radials had an advantage of perhaps 3 dB
> vs the ordinary vertical toward Europe (a
> just discernable difference). In other directions,
> it had no advantage. Not what I would call
> gangbusters.
>
> Rick N6RK
>
> (A report on this and other vertical experiments
> is on my web site www.n6rk.com)
>
,
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