That much distance with omni antennas (at each end?) is likely to be
problematic.   You might have better success with the fixed end being
directional.

On Oct 10, 2017 4:56 PM, "Van Horn, David" <
david.vanhorn@backcountryaccess.com> wrote:

> Possibly useful for this or other similar applications
> http://www.ve2dbe.com/rmonline.html
>
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