On Thu, Jul 12, 2012 at 01:11:48PM -0700, Ron Spencer wrote: > I thought the ball changed it to circular polarization..... No; a ring, planar, or spiral radiator changes it to circular polarization. A ball changes it to 4-dimensional spherical polarization. ;=) -- Mike Andrews, W5EGO mikea at mikea.ath.cx Tired old sysadmin