On 12/28/2011 12:26 PM, Roger Parsons wrote:
> Jim Lux wrote:
>
> "You're describing the difference between the near field (wooden element
> in Yagi) and far field (propagating through a box)."
>
> Not really. The box could be in the near field or the far field (I know
> it would then be quite a big box:-), and it would still attenuate the
> signal received from the antenna at a distant point.
Probably not if it were made of dry wood. If really close to the
antenna it would behave much like the plastic insulation/dielectric on a
wire requiring the wire/antenna to be shortened a bit, but I doubt you'd
be able to measure any attenuation
73
Roger (K8RI)
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