On Thu,1/14/2016 9:45 AM, David Robbins wrote:
what is the intended purpose of said ground screen not being connected to the
tower. if you area going to shuntfeed the tower then you want the ground
screen as big as you can make it and attached securely to the tower.
Right. And they SHOULD be bonded to the mesh in the slab. The question
is, the usefulness of elevated radials on a grounded tower. To take
advantage of their elevation, they must be bonded to the tower. I would
bond them at the base, sloping them up from that point to their elevated
height as they extend from the tower. But they will, by virtue of their
height, reduce somewhat the effective height of the antenna. I'm going
from N6LF's excellent work on the subject, and by modeling. I'd pay
attention contrary advice from guys like K1TTT and W3LPL.
73, Jim K9YC
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