>
> The first (RF) is somewhat hopeless, as was pointed out, because a
> real (broadband) RF ground has to be very short, say not more than
> 1/10 wavelength, to avoid reactive and resonant effects. That means
> shorter than 1 meter for 10 meter operations, etc. That's not
> practical in most installations. You don't really need a "true" RF
> ground, if your antenna system is balanced properly - no common mode
> RF on the feed lines, etc.
>
Or....a half wave ground wire, to repeat the low impedance at earth right at
the radio.
And, since lightning is RF, I feel that a real RF ground is important, even
for lightning.
73 de Gary, AA2IZ
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