Hughes Network Systems 38HL-001 ユーザーズマニュアル
1027145 – 0001 Revision D
4–22 Installing ODUs
Hub installation
This subsection applies only to the 22.5
°
HT antenna. If you
are installing a 90
°
or 45
°
antenna, skip this subsection. You do
not need to fine–adjust the azimuth.
Now adjust the azimuth more precisely:
1.
Using a torque wrench with a deep socket, verify that
the torque of the four mast clamp nuts is 20 foot–pounds
(27.1 Newton–meters).
the torque of the four mast clamp nuts is 20 foot–pounds
(27.1 Newton–meters).
Figure 4-17
Tightening the mast clamp nuts
hb070
4 mast clamp nuts:
20 foot-pounds
20 foot-pounds
(27.1 Newton-meters)
2.
Loosen each nut by one full rotation.
(The mount stays in position, but will move when you turn
the azimuth adjuster with a wrench.)
the azimuth adjuster with a wrench.)
3.
To determine the actual HT alignment direction with respect
to your location on the roof, use the sector map you created
(section 4.3), and protractor. Landmarks may also help.
to your location on the roof, use the sector map you created
(section 4.3), and protractor. Landmarks may also help.
4.
When the azimuth is properly adjusted, tighten the
mast clamp nuts to 20 foot–pounds torque
(27.1 Newton–meters).
mast clamp nuts to 20 foot–pounds torque
(27.1 Newton–meters).
Fine azimuth
adjustment