User's Manual

ECLIPSE INSTALLATION MANUAL
l The rotator is an integral part of the antenna mount. Vertical polarization is
the default setting.
l The V and H settings are indicated on the rotator head.
Remote-Mounted ODUs are used where standard antennas are used (antennas
are not fitted with the Eclipse mounting collar).
l Antenna installation for V or H polarization is normally determined by the
orientation of the waveguide port / slot.
l To remote mount an ODU, refer to Remote-Mounted ODUs on page 53.
l This figure shows antenna waveguide port (slot) orientation for vertical and
horizontal polarization settings.
Figure 2-5. Antenna Waveguide Slot Orientation for V and H Polarization
ODU Rotator Procedure
If the ODU rotator is not set for the required polarization, you must adjust its ori-
entation. This topic describes typical adjustment procedures for Andrew antennas.
Similar procedures apply to other antennas approved by Aviat Networks. Instruc-
tions are included with all antennas.
To change the polarization of the Andrew antenna:
1. Release (do not completely undo) the six metric Allen-head screws approximately
10mm (3/8”). Pull the collar forward and hold the rotator back, which will allow the
rotator to disengage from a notch in the collar, and turn freely.
2. Turn the rotator hub 90° until it locates back into a notched “timing recess” in the
collar.
3. Check that the timing mark on the rotator hub has aligned with either a V or an H
on the collar to confirm polarization as shown below.
4. Ensure the rotator hub is correctly seated within its collar, then push the collar
back against the antenna mount and re-tighten the six screws.
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