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I'm not real sure about the patterns that Eznec makes, but I think their patterns over real Earth are taken from the perspective while standing on the ground at any point beside the antenna and out to the horizon or maybe even out to infinity.

So, with elevation set at any height above the Earth you will see RF below the antenna down to the Earth. I think the 90* degree line represents the Earth's surface.

[QUOTE="Marconi, post: 282752, member: 903"] I'm not real sure about the patterns that Eznec makes, but I think their patterns over real Earth are taken from the perspective while standing on the ground at any point beside the antenna and out to the horizon or maybe even out to infinity. So, with elevation set at any height above the Earth you will see RF below the antenna down to the Earth. I think the 90* degree line represents the Earth's surface. [/QUOTE]

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