Delorme pn-30 ユーザーガイド

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automatically set from the GPS satellites and is highly 
accurate.
To change the time settings, go to MENU > Device Setup 
> Time
.
GPS Accuracy
The calculated GPS accuracy displays in the units of mea-
sure you are using on your PN-Series GPS. On the Map 
Page, GPS accuracy is represented by a circle with a radius 
equal to the GPS accuracy; your actual location on the map 
is within the circle.
Any buildings, natural structures, or heavy foliage that 
obstruct the GPS antenna’s view of the sky may prevent 
satellite signals from reaching the receiver and decrease 
the accuracy of your position. Placing the PN-Series GPS 
in a jacket or backpack pocket should not affect positional 
accuracy.
Elevation
PN-40 only
The elevation is based on the current barometric altim-
eter reading. When the Auto Calibrate Altimeter option is 
enabled, you may see the word “Calibrating” in the bottom 
right corner of the screen while the altimeter adjusts—typ-
ically 2-3 minutes. If you are using the Elevation: Altimeter 
info field on any page, you may see a red exclamation point 
in the field while the altimeter adjusts. 
For more information about calibrating the altimeter, see 
Altimeter Calibration on page 76.
Battery Indicator
The battery indicator depicts the available battery power: 
Four green bars
 
–Indicates a full charge.
Three green bars
 
–One quarter of the battery power  
  has been used.
Two yellow bars
 
–One half of the battery power has  
  been used.
One red bar
 
–Three quarters of the battery power has  
  been used. Once the battery has reached 5% of its  
  total battery power, a low battery warning displays.
When a DeLorme Li-ion battery is charging, the battery 
indicator graphic is animated and the word “Battery” is re-
placed with “Charging.” Once the battery is fully charged, 
the battery indicator graphic displays four static green 
bars and “External” displays until you disconnect the USB 
cable.
If you are not using the DeLorme Li-ion battery, "External" 
displays whenever you plug your device into your computer.
 
The Satellites Page