RoyalTek RGM-3800 - Manual (Page 8)

2.4 Detailed Hardware Function
2.4.1. Power Switch
Power ON / Power OFF
2.4.2. USB Jack
Using the supplied USB cable to connect with the GPS receiver ‘s
USB connector for data transfer.
USB Cable is without the charging function.
2.4.3. Memory Clear button
While the power turn on, you can push the clear button for 3
seconds to erase the GPS log files from the recording memory if
the GPS Receiver battery is ok.
2.4.4. Memory Status LED (Amber)
Glowing Amber color indicates Memory is full.
The default flash operation setting is overwrite if the flash is
full then the flash will erase the oldest sector.
When the battery power is turn on and remains power is ok,
user can push the clean button for 3 seconds to clear the
memory data.
If the memory clear ON, the Green and Red LED will blink
alternately until the serial flash had been erased completely.
2.4.5. GPS Status LED (Green)
Glowing - Position is fixed.
Notes: Tracking may be difficult depending on the environmental
condition and please check the status of the GPS LED Status
before using.
2.4.6. Battery Status LED (Red)
If the battery power low, the Red LED blinking and Green LED
dim.
Blinking Red: 10% power remains.
When the power becomes 10% or lowers, the Battery LED
flashes red.
When the remaining power become even lower (Approx.