I'm looking for a clamp that can extend a 2" diameter pole with another pole.
Basically I'm trying to set up a Ubiquiti Litebeam but the pole I'm attaching it to isn't tall enough for line of sight to the other building.
What I want is something like this picture but the poles will be free standing in the air, not againt a wall. Imagine that the one on the left is attached to the building and is sticking out of the roof. I want to get another pole (the one on the right) to be clamped on (possible two clamps) to the pole sticking out of the roof.
What kind of clamp am I looking for?
EDIT: Here's an image of what I want, don't know what it's called.

