User Manual

Page 8-4 Expansion Pods
GPS Expansion Pod
The GPS expansion
pod integrates the
Trimble Lassen LP GPS
receiver with the
Allegro. A compact 3.3
V active micropatch
antenna is mounted to
the top of the Allegro.
The Lassen LP module
is a high-performance,
low power, micro GPS
receiver that supports
both TSIP and NMEA protocols with autonomous accuracy of 5 –10
meters, or 2 – 5 meters after differential correction. The GPS
expansion pod is used in conjunction with the following programs:
• GIS/GPS programs for Windows CE including ESRI ArcPad,
TerraSync

, Starpal HGIS, and others
• LandMark GPS mapping and navigation program
• DataPlus Professional or EASYDC generated applications for
data collection
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▲▲
▲ GPS Pod Setup Program
The GPS Pod Setup program is factory installed on your Allegro.
The program allows you to configure the parameters of the internal
GPS receiver to accommodate the various GPS/GIS programs that
run on the Allegro.
The Allegro communicates with the internal GPS receiver via COM
3. The GPS Pod Setup program allows you to change the serial port
settings being used (i.e. baud rate, parity, stop bits), and to select
between TSIP and NMEA data output formats.