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1 & 2 ft. Antenna Installation Manual
4.0 Installing the ODU
© 2011 Trango Systems, Inc. All rights reserved. LT-9035 Rev B
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ODU Polarization
The antennas are all capable of supporting Horizontal or Vertical
polarization by simply rotating the ODU 90 degrees on the back of the
antenna. Figure 9 shows the circular waveguide interface on the antenna
with the “V” and “H” markings.
Before attaching the ODU, ensure that the O-ring is installed as shown
below and is fee of dirt or other foreign debris. Smear the silicone grease
around the antenna cylinder and over the O-ring to prevent tearing of the
O-ring when the ODU is attached. Be careful not to not get any silicone
inside the waveguide opening.
Figure 9 – Polarization mark on antenna
“V” mark on the antenna. Alignment
mark/arrow on the ODU must line up
with the “V” for vertical polarization
“H” mark on the antenna. Alignment
mark/arrow on ODU must line up with the
“H” for horizontal polarization.