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5700/5800 GPS Receiver User Guide 37
General Operation 4
5700 GPS Receiver Operation
Table 4.1 describes the main functions of the two buttons.
Note – The term “press” means to press the button and release it
immediately. The term “hold” means to press the button and hold it down
for the given time.
4.2 LED Behavior
The five LEDs on the top panel of the receiver indicate various
operating conditions. Generally, a lit or slowly flashing LED indicates
normal operation, an LED that is flashing quickly indicates a condition
that may require attention, and an unlit LED indicates that no
operation is occurring. The following table defines each possible LED
state.
Table 4.1 Button functions
Action Power button Data button
Turn on the receiver Press
Turn off the receiver Hold for 2 seconds
Start logging data internally Press
Stop logging data internally Hold for 2 seconds
Delete the ephemeris file Hold for 15 seconds
Reset the receiver to factory defaults Hold for 15 seconds
Delete application files Hold for 30 seconds
Format the CompactFlash card Hold for 30 seconds
The term … means that the LED …
Flash is lit briefly every 3 seconds
Slow flash alternates slowly between being lit and unlit
Fast flash alternates rapidly between being lit and unlit
On is lit
Off is unlit