[kwlug-disc] Line of sight / antennas

John Johnson jvj at golden.net
Wed Apr 16 16:56:14 EDT 2014

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.


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