User's Manual

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Introduction: this screen displays the current GPS satellite signal strength C/N value
information, currently it displays the satellite ID numbers and values for 5 satellites with the
5 strongest C/N values. The numbers in the bottom row represent the satellite ID numbers
for satellites, the bars in the middle row represent the strength of satellite signals and the
higher the bar, the stronger the signal. A hollow bar represents unused satellite, a
half-hollow bar shows a satellite is used but the positioning isn't successfully fixed yet and a
solid bar means the satellite is being used and the current positioning is successfully fixed.
The numbers on the upper row represent the C/N value of the satellite signal strength.
Button actions:
Menu Key: Go back to the previous screen: [GPS compass direction].
Enter Key: Go to the next screen: [the latest positioning information].
Back Key: Go back to the main menu.
9.3.12. Message – Message Menu
Introduction: This screen displays messaging function, currently there are 2 primary
functions: reading message and sending message.
Button actions:
Menu Key: Scroll down and select items.
Enter Key: Go to selected screen.
Back Key: Go back to the main menu.
9.3.13. Message - Message Information
Introduction: this screen displays the message information including icons for read or not
read and the number and date for message sender.
The explanation for icons is below:
: The message has not been read.
: The message has been read.