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Chapter 5: Installation
Installing external antennas to a connectorized
ODU
Page
41
Figure 108
Variables for calculating angle of elevation (and depression)
Where:
Is:
b
angle of elevation
B
vertical difference in elevation
A
horizontal distance between modules
To use metric units to find the angle of elevation, use the following formula:
Where:
Is:
B
expressed in meters
A
expressed in kilometers
To use English standard units to find the angle of elevation, use the following formula:
Where:
Is:
B
expressed in feet
A
expressed in miles
The angle of depression from the higher module is identical to the angle of elevation from the
lower module.
8
Connect the coax cables to the antenna and to the AP
9
Weatherproof the connector on the coax cables (see section
Attaching and weatherproofing an
on page
).
tan b =
B
1000A
tan b =
B
5280A
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