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System limitations 224, Gps system, Gps system p. 224 – HONDA 2015 Fit - Navigation Manual User Manual

Page 225: System limitations, Gps system address calculation database, Address calculation, Database

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224

Reference Inf

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rmation

System Limitations

GPS System

The signals received from the GPS satellites
are extremely weak (less than a millionth of
the strength of a local FM station) and
require an unobstructed view of the sky.
The GPS antenna is located in the
dashboard. The signal reception can easily
be interrupted or interfered with by the
following:
• Metallic window tint on the front or side

windows

• Cell phones, PDAs, or other electronic

devices docked in a cradle or lying loose
on the dashboard

• Remote starters or “hidden” vehicle

tracking systems mounted near the
navigation unit

• Audio electronic devices mounted near

the navigation unit

• Trees, tall buildings, freeway overpasses,

tunnels, or overhead electrical power
wires

The GPS is operated by the U.S. Department
of Defense. For security reasons, there are
certain inaccuracies built into the GPS for
which the navigation system must
constantly compensate. This can cause

occasional positioning errors of up to
several hundred feet.

Address Calculation

The destination icon shows only the
approximate location of a destination
address. This occurs if the number of
possible addresses is different from the
number of actual addresses on a block. For
example, the address 1425 on a 1400 block
with 100 possible addresses (because it is
followed by the 1500 block) will be shown a
quarter of the way down the block by the
system. If there are only 25 actual addresses
on the block, the actual location of address
1425 would be at the end of the block.

Database

The digitized map database reflects
conditions as they existed at various points
in time before production. Accordingly,
your database may contain inaccurate or
incomplete data or information due to the
passage of time, road construction,
changing conditions, or other causes.

For example, some places/landmarks may
be missing when you search the database
because the name was misspelled, the place
was improperly categorized, or a place/
landmark is not yet in the database. This is
also true for police stations, hospitals, and
other public institutions. Do not rely on the
navigation system if you need law
enforcement or hospital services. Always
check with local information sources.