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Chapter 3 OPERATING DETAILS
The Explorer Handheld GPS is a miniature computer, composed of a CPU, memory
IC and operation system (OS), called
HOLUX
OS. It is designed to receive the satellite
signals once every 100 milli-second, i.e. 10 times per second, and to calculate all the
retrieved data in the CPU. In that case, there will be some delay after you press a
button. Also its processing speed is not as quick as a desktop computer for the sake
of low power consumption.
I. ON/OFF & BACKLIGHT
A. On
Press and hold “ “ for 2 seconds to turn on the unit as Fig. 3-1-1. It will switch to acquiring
satellites page and search satellite signals automatically in 3 seconds as Fig. 3-1-2. Once a
satellite is acquired, the signal bar will appear. If the satellite signal fixed, the bar will turn
black. The stronger the signal is, the longer the bar is. After more than 3 satellites are acquired
and fixed, your position is identified and the display goes to the map page as Fig. 3-1-3 for
GM-305-DT and GM-305-HT or a “ ” only in the map for GM-305-WT.
B. Off
Press and hold ” “ for 2 seconds.
C. Backlight
press ”
“ to turn on/off backlight as Fig. 3-1-4 when the unit is on.
Note: The following message will show up when Explorer can not get position identified for
10 minutes continuously: This message may show in any page.
Software Version
Map Version
Home Page
Back light
Battery status
5 satellites locked
Satellite spread
status and its no.
2 satellites unlocked
Coordinate
Model Name
Fig. 3-1-1
Fig. 3-1-2
Fig. 3-1-3
Backlight “ON” Backlight “OFF”
Fig. 3-1-4
& Map provider