[kwlug-disc] Line of sight / antennas

[John Johnson]

On 2014-04-16 16:01, Richard Weait wrote:
> It doesn't consider earth curvature ...
>    
A "back of the envelope" calculation shows the difference in elevation 
over 160 km caused by the earth's curvature at about 20 metres.
Tower / antenna heights are another thing.

Regards
JohnJ

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