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I believe the GM shows improved gain at 0degrees in free space, 0degrees over ground won't happen, any radition at 0degrees is cancelled by ground reflection in the fresnel zone! That said you're in business at any angle greater than this.

As for the horizontal beam over water, it is bound by the same rules that apply over real ground, height, for a beam to have a low take off angle it has to be high relative to its wavelength, this is why the vertical is such a good performer by the sea and the default choice for island DXpeditions

[QUOTE="northern35s, post: 399303, member: 17216"] I believe the GM shows improved gain at 0degrees in free space, 0degrees over ground won't happen, any radition at 0degrees is cancelled by ground reflection in the fresnel zone! That said you're in business at any angle greater than this. As for the horizontal beam over water, it is bound by the same rules that apply over real ground, height, for a beam to have a low take off angle it has to be high relative to its wavelength, this is why the vertical is such a good performer by the sea and the default choice for island DXpeditions ;) [/QUOTE]

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