On Sat, 25 Aug 2012 08:20:22 -0700, Jeff Liebermann wrote:

http://www.wpsantennas.com/fm2-antenna-pole-mount.aspx

I noticed this has two sets of mounting holes, so that you can reverse
the short arm of the J.

I thought about drilling a second set of holes in the long end, but, I
worried about the cantilever being too far out in that case for the heavy
rocketdish (which is heavier than a dish tv antenna).

By adding about 10 inches of EMT tubing to the long end of the J, I'm
hoping not to change the geometry all that much. Of course, I have to
bolt (lag screws) it into something really solid!

In hind sight, it might have been easier to erect an ugly but straight
pipe in the ground!