Nikon ASTRO XTS-5000 - Manual (Page 106)

ASTRO XTS 5000 Model II 93
Special Radio Features
GPS Enabled
Your RSM’s GPS Enabled feature uses information from the Global
Positioning System (GPS) satellites orbiting the Earth to determine
the approximate geographical location of your RSM, expressed as
latitude and longitude. The availability and accuracy of this location
information (and the amount of time that it takes to calculate it) will
vary depending on the environment in which you are using the GPS
feature.
For example, GPS location fixes are very difficult to obtain indoors, in
covered locations, between high buildings, or in situations where you
have not established a clear broad view of the sky.
IMPORTANT: Things to Keep in Mind
The GPS technology uses radio signals from earth orbiting satellites,
to establish the location co-ordinates, maximizing your view of clear
unobstructed sky is essential for optimum performance. Where
adequate signals from multiple satellites are not available (usually
because you cannot establish a view of a wide area of the sky), the
GPS feature of your RSM will not work. Such situations include but
are not limited to:
• In underground locations
• Inside of buildings, trains, or other covered vehicles
• Under any other metal or concrete roof or structure
• Between tall buildings or under dense tree-cover
• In temperature extremes outside the operating limits of your RSM
Even where location information can be calculated in such situations,
it may take longer to do so, and your location estimate may not be as
accurate. Therefore, in any emergency situation, always report your
location to your dispatcher.
Furthermore, please note that even where adequate signals from
multiple satellites are available, your GPS feature will only provide an
approximate location, often within 20-100 meters from your actual
location, but sometimes much further from the actual location.
94C26-K_XTS5000Mdl2.book Page 93 Friday, April 25, 2008 9:48 PM