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• Power drill and associated bits
• Wire cutters
• Wire strippers and terminal lug crimper
• RJ-45 Crimp tool
• Electrical tape
• Strap wire/electrical clips for temporary grounding the ODU/IDU cable (alligator clips)
• Ground connection points for ODU and IDU
6.1 Choosing a Location for the ODU
Proper location is critical to ensure proper communications between the Iridium Broadband Subscriber Unit
(IBSU) and the Iridium satellite network.
The Outdoor Unit (ODU) transmits radio frequency (RF) that may cause thermal injuries
including tissue damage from increased heating and body temperature. When the system power
is ON keep all personnel a minimum of 1.0 m (3.3 ft.) from the antenna (see Radiation Hazard).
Failure to do so could result in serious injury or death.
ODU Installation Considerations
As previously stated, Iridium is a constellation of LEO satellites covering every location on the surface of the
Earth, at any moment in time. This means the satellite communicating with the Iridium Pilot Land Station unit
can be located anywhere within the local hemisphere, making a horizon-to-horizon unobstructed view of
the sky important for uninterrupted communications. The solid state antenna array takes care of tracking the
satellite to maintain acceptable link margin. No moving parts are used in the ODU for antenna tracking
Finding an unobstructed view of the sky may be challenging in your location. Pole mounting the ODU may
provide better results.
Figure 7.
Minimize
obstructions
10
Iridium Pilot Land Station Installation Guide
WARNING
Unobstructed view of sky all direction
8.0 m (26.2 ft.)
Unrestricted area for obstructions
2.0 m (6.6 ft.)
8.0 m (26.2 ft.)
No metallic or concrete
obstructions in
grey shaded area
Minimize
obstructions
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