User's Manual

Chapter 6 — Use GPS
54 CN50 Mobile Computer for Windows Embedded Handheld 6.5 User Manual
Improve GPS Performance on the Computer
The integrated CN50 GPS module has three operating modes:
• Standalone GPS
• Assisted GPS
•
Qualcomm XTRA™
Integrated GPS Operating Modes
Operating Mode Description
Standalone GPS In Standalone GPS mode, the GPS module relies solely on
GPS satellites to determine position.
Assisted GPS In Assisted GPS mode, the computer can determine
position without receiving GPS signals directly from
satellites; instead, the computer receives GPS signals and
information provided by the cellular network. Even when
the computer can receive a satellite signal, Assisted GPS
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
Assisted GPS service.
Qualcomm XTRA Qualcomm XTRA’s technology provides enhanced
operation for Standalone GPS. This option enables the
CDMA or UMTS-enabled computer to automatically
download a small assistance data file from the XTRA
servers through a brief internet access session.
Note: You must select Qualcomm XTRA operating mode to
download the assistance file.