TracNet H90 Installation Guide
4
Plan the Antenna Installation
Plan the Antenna Installation
Before you begin, be sure the designated install location
meets the following guidelines.
Choose a Suitable Location
• Select a location that is as close as possible to the
intersection of the vessel’s centerline and midships.
• Temperature must be within the operating range (-30ºC
to 55ºC (-22ºF to 131ºF)).
• Be sure to mount the antenna near enough to the BDU
(Hub+) to allow you to connect the 100 ft (30 m)
antenna cable (supplied in kit) between them, while still
maintaining sufficient slack in the cable to account for
appropriate bend radius and service loops.
Note: If you need to use a longer cable, refer to “Prepare
the Antenna Cable” on page 10.
Mounting Structure Requirements
Make sure the mounting surface is flat, level (within ±1º),
and wide enough to accommodate the antenna’s base.
Also make sure that the structure is strong enough to
withstand the weight of the antenna (189 lbs, 86 kg), as
well as other cumulative forces related to expected
operating conditions, such as ice, snow, wash down, and
maximum expected values of pitch, roll, and wind pressure
(including gusts).
Recommendation: Vibration of the mounting surface
should measure less than 0.51 gRMS total, and also less
than 0.11 gRMS at the following resonant frequencies:
• Vertical 48-50 Hz, 55-56 Hz, 73-75 Hz
• Horizontal 70-78 Hz
Note: Ship’s crew should consult with the shipyard to
ensure that the antenna mounting surface vibration never
exceeds the above stated conditions at any time during its
life.
Figure 2: Antenna Dimensions
IMPORTANT!
Damage caused by an improper installation is not
covered under KVH warranty.
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