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About the Integrated GPS on Your Computer
ecom instruments recommends that you use the GPS Intermediate Driver (GPSID) in-
stead of directly accessing the GPS hardware� The GPSID is a Microsoft software com-
ponent that interacts between applications and the GPS hardware�
As a Microsoft software component, the GPSID:
• allows multiple applications to simultaneously access the GPS data stream.
• provides access to GPS data without requiring applications to recognize
and parse NMEA syntax�
Use the GPSID Installed on the Computer
To use the GPSID installed on your mobile computer, you need to configure the GPSID
settings�
1 Tap Start > Settings > System > External GPS� The GPS Settings screen
appears with Programs selected�
2 Select the COM port that you want your programs to use to get GPS data
from your computer�
3 Tap Access in the horizontal scroll bar and select the Manage GPS
automatically check box�
4 Tap OK�
Improve GPS Performance on the Computer
Use the iGPS application to improve the performance of the GPS on your i�roc® Ci70 -Ex
computer� The integrated GPS module has three operating modes:
• Standalone
• MS Assisted (Mobile Station Assisted)
• gpsOneXTRA™ (WWAN computers only)
In Standalone mode, the GPS module relies solely on GPS satellites to determine posi-
tion�
In MS Assisted mode, the computer can determine position without receiving GPS sig-
nals directly from satellites; instead, the computer receives GPS signals and informa-
tion provided by the cellular network� Even when the computer can receive a satellite
signal, MS Assisted can improve position accuracy and reduce the time to determine
initial position (Time-To-First-Fix)� Check with your cell phone carrier for availability
and pricing for MS Assisted service�
Qualcomm’s gpsOneXTRA Assistance technology provides enhanced operation for
Standalone GPS� This option enables the UMTS-enabled computer to automatically
download a small assistance data file from the XTRA servers through a brief internet
access session� To use this option, you must have a valid and activated WAN data con-
nection�
Note:
Internet connection fees may apply�
Another option you can configure with iGPS is the fix interval. The fix interval defines
how often the GPS should provide new information� Larger intervals use less power, but
many applications require small intervals to work correctly. The default for fix interval,
in seconds, is 4� The Flexible Network Radio has a maximum interval of 4�
Note:
Anytime you change the GPS settings, the phone module automatically resets� It will
not affect the functionality of the computer�
To improve GPS performance:
1 Go to Start > Settings > System > iGPS�
2 In the Fix Interval tab, enter a value for the fix interval.
The default setting is 4 and should be optimized for most applications�
3 Tap the Fix Type tab and select one of these options: Standalone (1),
MS assisted (2), or Enable gpsOneXTRA (check box)�
4 Tap OK�
