On 14 Oct 2006 06:32:21 -0700, "CW" wrote:

I've been wondering for some time now why amateur operators don't build
their Yagi antenna's
so they can be raised and lowered about 10ft in addition to being
rotated.
It seems to me that raising and lowering the height of a Yagi affects
the take-off angle by at least several degrees, meaning that the signal
delivery (target area) would be moved by at least many hundreds of
miles.

Or hows about raising and lowering the angle of the Yagi? Tilting it
somewhat? Maybe a winch and cable to the end of the Yagi and some
kind of rotatable joint at the tower end. That would also be complex
and cost some.

Tony