32 33About the Integrated GPS on Your Computerecom 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 recognizeand parse NMEA syntax�Use the GPSID Installed on the ComputerTo use the GPSID installed on your mobile computer, you need to configure the GPSIDsettings�1 Tap Start > Settings > System > External GPS� The GPS Settings screenappears with Programs selected�2 Select the COM port that you want your programs to use to get GPS datafrom your computer�3 Tap Access in the horizontal scroll bar and select the Manage GPSautomatically check box�4 Tap OK�Improve GPS Performance on the ComputerUse the iGPS application to improve the performance of the GPS on your i�roc® Ci70 -Excomputer� 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 satellitesignal, MS Assisted can improve position accuracy and reduce the time to determineinitial position (Time-To-First-Fix)� Check with your cell phone carrier for availabilityand pricing for MS Assisted service�Qualcomm’s gpsOneXTRA Assistance technology provides enhanced operation forStandalone GPS� This option enables the UMTS-enabled computer to automaticallydownload a small assistance data file from the XTRA servers through a brief internetaccess 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 defineshow often the GPS should provide new information� Larger intervals use less power, butmany 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 willnot 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�