Honda Accord 2008 Manual page 2592

07/11/02 09:54:02 61TA0000_230_0148
Global Positioning System (GPS)
The global positioning system (GPS) enables the navigation system to determine the current position of the vehicle by
using the signals transmitted from the satellites in orbit around the earth. The satellites transmit the satellite
identification signal, orbit information, transmission time signal, and other information. When the GPS receiver
receives a signal from four or more satellites simultaneously, it calculates the current position of the vehicle based on
the distance to each satellite and the satellite's position in its respective orbit.
Position detection Image with GPS satellite
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NOTE: Four satellites on each of 6 orbits.
Precision of GPS
The precision of the GPS varies according to the number of satellites from which signals are received and the view of
the sky. The precision is indicated by the color of the GPS icon shown on the display.
GPS ICON
COLOR
White GPS icon
Green GPS icon
GPS Antenna
The GPS antenna amplifies and transmits the signals received from the satellites to the GPS receiver.
GPS Receiver and Clock
The GPS receiver is built into the navigation unit. It calculates the vehicle position by receiving the signal from the GPS
antenna. The current time, vehicle position and signal reception condition is transmitted from the GPS receiver to the
navigation control unit to adjust vehicle position.
NUMBER OF CONDITION
SATELLITES
None Faulty
2 or less Impossible to detect vehicle
position
3 Vehicle position detectable in
2 dimensions
4 or more Vehicle position detectable in
3 dimensions (elevation
displayed)
DESCRIPTION
The GPS can't be utilized due to a faulty
GPS receiver, open in the wire, or other
fault or interference.
GPS function is normal. The satellite
signals received by the GPS are too few to
detect the vehicle position.
The longitude and latitude of the vehicle
position can be detected. (Less precise
than detection in three dimensions)
The longitude, latitude and the altitude of
the vehicle position can be detected. (More
precise than detection in two dimensions)
(cont'd)
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