The photo is attached to my first post of this topic :-). Bear in mind that the pole must be 55mm in diameter (minimum) but should rather be 75mm (optimum for the clamp and high wind loads). The antenna must be attached on top of the pole. If you mount it in front of a longer pole you will be very limited in elevation.
I have not yet fine tuned my OP 125L antenna. Far too hot for antenna pointing experiments these days ...