User's Manual Part 2

obr3650_ml_01_sdApproved: C.W.
B-2
• The simple arm supplied with the integrated antenna assembly can be mounted to the side of the house if you can
locate the structural studding.
The simple arm can also be attached to brick or cinder blocks. If mounting to brick, be sure to put the anchors in the
brick only, as anchors will not hold in joint mortar. If mounting to cinder blocks, use toggle bolts that go into the hollow
space in the block.
• The rooftop will often be another spot to fasten to. This usually is the best location for obstruction clearance. Locating
underlying truss structure can be done with stud finders, looking for nail fasteners through the fascia board, standard
sounding techniques, or from the underside of the roof. To prevent the roof from leaking, you should caulk the holes
with silicone sealant around the holes and at the bottom of the antenna foot where it contacts the surface. Apply the
sealant before you bolt the foot down tight. Be sure to caulk all holes to prevent leaks.
• An independent radio tower can also be used, but the Installation of these towers is beyond the scope of this
document, usually involving professional structural engineering. Metal towers can provide some of the best lightning
protection since the large metallic structural elements will best carry lightning energy straight to ground.
• Wooden poles are NOT recommended, because the insulating properties of the wooden pole mean that a large
percentage of a lightning stroke will follow the coax towards the terminal end, even when substantial grounding
conductors are used. Also, wooden poles will sway in the wind putting the antenna beam in and out of alignment in
high wind conditions. By the time the pole is re-guyed to minimize the sway; a properly engineered metal tower could
have been installed.
• Wind considerations. The integrated antenna has been engineered to operate in 160 Km (100MPH) winds, and
survive in 220 Km (135 MPH) winds, but these forces will generate several hundred Kg. of load to the supporting
mast. At this point, the mounting structure needs to be very secure.
• The Installation should be accessible year round. Ice might build up in the winter or early spring time.
TIP
When the primary coaxial cable is placed, leave approximately 24” of coaxial cable with a 4” to 6” diameter loop
where the antenna will be installed. This will allow for the required flexibility for adjustment and future servicing.