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Assuring
Quality of
Iridium Service
28
Iridium is committed to providing subscribers around the world
consistent, reliable, quality voice and data access all day every day.
The Iridium satellite system is monitored for call performance from
numerous locations 24 hours a day, 7 days a week in order to achieve
this.
There are conditions that can compromise the quality of the service
you may receive. These include:
•
Obstructions
•
Cabling
•
RF Interference
1. Obstructions
The antenna must be able to "see" the entire sky from approximately 8
degrees above the horizon. Nearby tall buildings or similar structures,
heavily leafed trees and mountains can all degrade performance as
they block the signal between the antenna and the satellites. Having
a completely open view of the sky plays a very important role in
maximizing performance, as the Iridium satellites cross the sky from
North horizon to South horizon during a connected call.
All surrounding obstructions must be lower than the top of a fist
extended at arms length and the bottom of the fist placed on the
horizon. Iridium performance is immune from natural environments
such as clouds, fog, rain, snow, wind and smoke.
2. Cabling
Using an externally mounted antenna provides an ideal solution for
many applications. If you have or plan to install an external antenna,
it is very important that the cables used meet the Iridium guidelines
established for proper performance.
For optimal performance, we recommend using the shortest length
of cable and the fewest number of connectors possible.
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