You should start unfolding the antenna from the side on which you will position the Ubidium System. 

Stand the antenna vertically with the Connector Cable on the ground, at the edge of your Timing Point next to your Ubidium System.

Depending on the length of your antenna you may find it easier to slightly separate the segments to allow them to stand freely. 

Pull the last antenna segment to unfold the antenna across the width of your Timing Point.