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Trimble R7/R8 GPS Receiver User Guide 39
General Operation 4
Trimble R7 Operation
Use d to start or stop logging. This button is only effective when the
receiver is switched on and has completed any power-up and
initialization tasks.
Table 4.1 describes the main functions of the two buttons.
Note – The term “press” indicates that you should press the button
and release it immediately. The term “hold” indicates that you should
press the button and hold it down until the time indicated has elapsed.
4.3 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 the receiver on Press
Turn the receiver off 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