User's Manual
Table Of Contents
1027145–0001 Revision D 4–20 Installing ODUs Hub installation
To adjust the antenna azimuth (horizontal pointing direction), you
move the antenna to the left or right, as illustrated in figure 4-15,
until it is pointed in the desired direction (HT alignment direction).
Mast
Sector
center
HT antenna
HT alignment direction
T0006005
Top view
Left
Right
adjusted
by 10 .°
+
_
Antenna
azimuth
can be
Figure 4-15 Antenna azimuth adjustment (to right or left)
Specific instructions for adjusting the antenna azimuth follow.
First obtain a coarse azimuth adjustment:
1. Rotate the antenna mount (and antenna) around the mast to
the approximate HT alignment direction.
Refer to the sector map you created as necessary.
Landmarks may also help.
2. Using a torque wrench with a deep socket, tighten the
four mast clamp nuts to 20 foot–pounds torque (27.1
Newton–meters). Tighten each bolt a little at a time,
moving from bolt to bolt in an X pattern.
3. Loosen the temporary installation collar and re–align the
collar with the mast interface, as shown in figure 4-11.
4. Tighten the correctly aligned temporary installation collar to
16 foot–pounds torque (21.7 Newton–meters).
4.8
Adjusting the
antenna azimuth
Coarse azimuth
adjustment