Gps Accuracy - DeLorme Earthmate PN-60 GPS User Manual

• 3-D–The GPS is receiving sufficient satellite data (horizontal position and elevation) to determine your location.
• WAAS–When "WAAS" appears below 2-D or 3-D, the PN-60 has a WA AS connection (available only in North
America) that provides up to five times greater positional accuracy than a regular 2-D or 3-D connection.
To set the current location
If it takes a long time for the PN-60 to obtain a 2-D or 3-D fix, verify it has a clear view of the sky. Be sure that trees,
buildings, and other obstacles are not blocking the device.
If the device still cannot obtain a 2-D or 3-D fix, go to MENU > Set Current Location. When the Map Page displays;
pan the map to your current location and press ENTER.
To turn off GPS
You can use many features on the PN-60 without a GPS fix. When the GPS receiver is turned off, "GPS OFF" displays
on the screen and all satellites are removed from the satellite constellation.
There are two ways to turn off the GPS receiver.
• From the Satellites Page go to MENU > Turn Off GPS. To turn the GPS on again, go to MENU > Turn On GPS.
• From the Home Page, go to Settings > System > GPS Setting > GPS Off. To turn the GPS on, select Normal or
Power Saving.
The GPS receiver is temporarily turned off when in simulation mode (during track playback and navigation simulation).
Time
You can change the time format, time zone, and manually set Daylight Saving Time. The time is automatically set from
GPS satellites and is highly accurate.
To change the time settings, from the Home Page, go to Settings > Time.

GPS Accuracy

In the lower left corner of the Satellites Page, the GPS accuracy displays. This is the calculated accuracy of the GPS,
expressed in distance. The actual location is within plus or minus the distance indicated of the location represented by
the 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 satel-
lite signals from reaching the receiver and decrease the accuracy of your position. Placing the PN-60 GPS in a jacket or
backpack pocket should not affect positional accuracy.
Elevation
The elevation is based on the current barometric altimeter reading. When the Auto Calibrate Altimeter option is select-
ed, you may see the word "Calibrating" in the bottom right corner of the screen while the barometer adjusts—typically
2-3 minutes. If you are using the Elevation: Barometer 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 59.
Compass and Altimeter
Calibrate the compass and altimeter from the Compass Page menu or the Satellites Page menu. The Compass &
Altimeter option on the Settings Page has additional sensor settings.
Earthmate PN-60 User Manual | Satellites Page 19