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Step 3. Plan where to position the
components
Building
Key
Junction box
Grounding wire
RAU cable
Figure 2. Roof mounted RAU
Reception zone
Building
Telephones
Junction box
Key
Grounding wire
Ground wire
RAU cable
Figure 3. Pole mounted RAU
Reception zone
RAU
10
10
Grounding wire
Telephones
RAU cable
Grounding wire
8 foot ground rod
(No more than 3.5 m
from Junction box)
RAU
10
10
RAU
cable
RAU
cable
Ground
wire
8 foot ground rod
(No more than 3.5m
from Junction box)
054AB_99
Determine where to position the QGFSP components and decide
which mount is best suited to the current work site. Be certain that
the RAU antenna has a clear view of the sky, that you have provided
adequate grounding, and that you have the correct number and
lengths of cable.
•
Two recommended mounting configurations are shown in Figure
2 and Figure 3. A poor choice for mounting is shown in Figure 4.
Note that in the figure, reception is blocked both by building and
by tree.
•
Use the sighting tool to help determine whether there are
obstructions to satellite reception. (See page 13 for instructions.)
•
Plan how to ground the QGFSP. If there is an existing lightning
protection system, see Figure 27 on page 38 for how to install the
QGFSP.
•
Position the junction box on the outside of the building, near
where the inner telco wires meet the outside, and close to the
grounding rod.
257AA_99
•
Be certain that cable lengths will be adequate. Recommendations
are on page 14.
Building
Key
Grounding wire
RAU cable
Plan where to position the components
Reception zone
RAU
10
10
Telephones
RAU
cable
Ground
wire
Junction box
8 foot ground rod
Ground wire
(No more than 3.5m
from Junction box)
Figure 4. Incorrect placement of RAU
551AB_1999Q
12
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