AMXU GPS EXPANSION POD
AMXU GPS Expansion Pod Overview The Field PC AMXU GPS Expansion Pod integrates a SBAS-capable GPS receiver with the Field PC. The Field PC communicates with the receiver. The GPS receiver is a uBlox high-performance, low power, micro GPS receiver that supports NMEA protocols with an accuracy of 2 to 5 meters. Location of GPS Antenna Note: Avoid Obstructions This integrated system includes a GPS Expansion Pod and GPS Pod Setup utility installed on a Field PC.
Pre-Configured Settings The GPS Pod Setup utility is installed on the Field PC at the factory and receiver settings are pre-configured. The Windows Mobile GPS Manager is configured to allow multiple applications to share access to the GPS receiver from one port (COM2). The pre-configured settings work for most situations, but can be adjusted as needed.
Tips for Using the Field PC AMXU GPS Expansion Pod Keep the following tips in mind while using the Field PC with the AMXU GPS Expansion Pod: 4 For best performance seek locations with the clearest view of the sky as possible. Obstructions such as buildings, trees, power lines, mountains, and your body can keep signals from reaching the receiver. Do not cover the antenna with anything while you are using the system (see graphic on page 2).
Reference Information GPS Pod Setup Utility The internal GPS receiver settings are pre-configured with the GPS Pod Setup utility as follows: These settings work for most applications. To make changes to the default settings, exit all GPS programs on your Field PC (this is a requirement) and go to Start > Programs > AMXU Pod Setup.
NMEA Message String Details Protocol: NMEA 0183 Version 2.
immediately available when the Field PC resumes power, providing an instant position fix. This could be useful if you need a position fix in obstructed areas such as under heavy tree canopy. The GPS receiver requires a stronger signal from the satellites to obtain a position fix at startup than it does when it needs to maintain a fix. Note: The “GPS always on” setting uses more battery power.
When you are finished, click the “OK” button in the upper right hand of the screen to confirm the settings. Note: the External GPS control panel only support NMEA messages from the GPS receiver. For more information consult the Field PC Owner’s Manual or Windows Mobile help files. GPS Receiver Hardware Settings Below are the default settings used to communicate with the GPS receiver.
Reinstalling the AMXU GPS Pod Cab File If the GPS Pod Setup Utility gets removed from your Field PC (during clean reset, for example) or you want all settings to go back to the factory default, download the GPS Pod Setup Utility CAB file from the website at www. junipersys.com/support. There is also a link to the website on the Field PC distribution CD.
GPS Receiver Specifications Receiver Type Specification Receiver Type 50 channels GPS L1 frequency, C/A Code Time-To-FirstFix Cold Start (Autonomous): 32 s Warm Start (Automonous): 32 s Hot Start (Autonomous): <1 s Aided Starts: <3 s Sensitivity Tracking & Navigation: -160 dBm Reacquisition: -160 dBm Cold Start (Autonomous): -144 dBm Horizontal Position Accuracy Autonomous: <2.5 m SBAS: <2.0 m Navigation Update Rate 1 Hz (1 second) Velocity Accuracy 0.1 m/s Heading Accuracy 0.
Services Information about repairs, upgrades, and warranties as well as frequently asked questions and documentation is located on our website at: www.junipersys.com/Support. You can also refer to the Field PC Owner’s Manual for more information. ! CAUTION: Do not attempt to repair the AMXU GPS Expansion Pod or Field PC yourself. This action voids the warranties.
P/N 23020-01 © Copyright 02-2011 Juniper Systems, Inc. Information is subject to change without notice. Juniper Systems, AMXU GPS Expansion Pod, and LandMark Mobile GPS Utility are trademarks of Juniper Systems, Inc. in the U.S.
