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Note: When the GPS connection cannot be established with the last used parameters
(protocol, port and speed), Uniden Navigation keeps on trying to connect. To save
the battery power in cases when you use Uniden Navigation without a GPS, Uniden
Navigation rst tries to open the port in every few seconds, but later only twice every
minute. If you later switch on the GPS, the connection is still established without any
user action but the repeated attempts will not run the battery down.
4.3.3 GPS data quality indicator
In the top left corner there is a satellite dish to show the quality of the GPS position.
Different colours represent different signal quality:
• black with a red cross means there is no connection with the GPS device.
This should never be the case if your device has a built-in GPS.
• red means the GPS is connected but no GPS position is available,
• yellow means 2D reception. A GPS position has been acquired, Uniden
Navigation is ready for navigation, but the GPS is using enough satellites for
calculating the horizontal position only. Elevation data is not provided, and
the position error may be signicant.
• green means 3D reception. The GPS receiver has enough satellites to
calculate altitude. Position is generally correct (yet it can still be inaccurate
due to different environmental factors). Uniden Navigation is ready for
navigation.
4.3.4 Time synchronization
In the top right corner of the screen you have another button that leads to a new
screen where you can synchronize the clock of your GNS8430/8435 to the very
accurate time provided by the connected GPS.