Chapter 1 — Using the CN3
36 CN3 Mobile Computer User’s Manual for Windows Mobile 6.1
Setting Up GPS on the CN3
If your CN3 comes equipped with an integrated Global Positioning
System (GPS) receiver, it can deliver standards-based National Marine
Electronics Association (NMEA) data strings to GPS applications.
Intermec recommends that you use the GPS Intermediate Driver
(GPSID) instead of directly accessing the GPS hardware. The GPSID
is a Microsoft software component that interacts between
applications and the GPS hardware.
Using the GPSID allows Intermec support for Extended Ephemeris,
which enhances GPS performance by:
• reducing the amount of time it takes your GPS receiver to acquire
a fix.
• eliminating the need to obtain precise satellite data information
from the GPS satellites.
And, as a Microsoft software component, the GPSID also provides
these benefits:
• It allows multiple applications to simultaneously access the GPS
data stream.
• It provides access to GPS data without requiring applications to
recognize and parse NMEA syntax.
Using the GPSID Installed on the CN3
To use the GPSID installed on your CN3, you need to configure the
GPSID settings.
To configure your GPSID settings
1 Tap Start > Settings > the System tab.
2 Tap External GPS. The GPS Settings screen appears.
