[BC] Base Insulator Elevation

[PeterH]

On Nov 13, 2010, at 6:27 AM, Mike McCarthy wrote:

> Our designer, Ron Rackley recommended tower base elevation  
> differential
> be limited to 5 deg. maximum for the above reasons.  It goes to stand
> the Z plane or vertical plane (as looked at from a plan view) is  
> just as
> important as the X and Y planes in the geometric spacing of the
> radiating elements. Those tolerances are obviously fairly tight and  
> the
> Z plane is also not to be ignored for that reason.

The classical methods of solution all assume equal Z on all radiators.

Elevated piers is the obvious solution.