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Figure 17
Install a directional outdoor antenna on a parapet
Figure 18
Install a directional outdoor antenna on a building top surface or cement pier
If there are parapets around the building top and the parapets are 1200 mm (47.24 in)
high or higher, install the antenna pole on a parapet with expansion bolts and affix the
directional outdoor antenna onto the pole with pole-mounting brackets (see the diagram
on the left in Figure 17
Lightning rod
Directional outdoor antenna
Antenna support(antenna pole)
Parapet on building top
Pole-mounting brackets
500 mm
1200 mm
Φ75 mm
500 mm
1000 mm
Φ75 mm
Flat steel
To the grounding grid
Cement pier
Steel wire
Antenna support (antenna pole)
Directional outdoor antenna
Lightning rod
Φ75mm
Pole-mounting brackets
Flat steel
To the grounding grid