User manual TRIMBLE GPS CORRECT EXTENSION 3.15 RELEASE NOTES REV A

[. . . ] Release Notice This is the November 2010 release (Revision A) of the Trimble GPScorrect Extension Release Notes. It applies to version 3. 15 of the Trimble GPScorrect extension for Esri ArcPad software. 2 Trimble GPScorrect Extension Release Notes Introduction Welcome to the release notes for the Trimble® GPScorrectTM extension for the Esri ArcPad software. Please read these release notes carefully. When you install version 3. 15 of the GPScorrect extension, you must choose the language that the Installation Wizard and the Activation Wizard use to install and activate the software. [. . . ] While this message is displayed, do not cancel the installation or reset the device. If the GPScorrect extension does not install correctly on the device, delete the ArcPadPrefs. apx file from \My Documents\My ArcPad. Removing the file deletes any custom ArcPad software settings. To install the Trimble GPScorrect extension you must first install the Esri ArcPad software. To install or uninstall the GPScorrect extension from a desktop computer, the ArcPad software must already be installed on the computer. To uninstall both products, you must first uninstall the GPScorrect extension and then uninstall the ArcPad software. Before installing a new version of the GPScorrect extension on a Windows Mobile powered device, make sure you completely uninstall any previous version. If an older version is not removed, you may need to reset the device to be factory settings, which will remove all installed applications and data. · · · GNSS After you reset the GNSS receiver, you may need to disconnect and reconnect the receiver to collect an almanac. 4 Trimble GPScorrect Extension Release Notes Communications · For receivers that support RTCM, the GPScorrect extension can forward RTCM corrections from a serial port on the field computer to the GNSS receiver. However, it cannot forward CMR messages from a serial port to the receiver. If you accidentally select an infrared port on the field computer for connection to a GNSS receiver, the Trimble GPScorrect extension may stop responding. If you are using a GPS Pathfinder ProXRT receiver with a cabled external realtime source such as a GeoBeaconTM receiver, and you change the real-time setting in the GPScorrect extension to Use Uncorrected GPS, the ProXRT receiver continues to use the real-time corrections to generate positions. To stop using corrections from a cabled external real-time source, in the GPScorrect extension select Use Uncorrected GPS, and then disconnect the cable from the ProXRT receiver. · · Data collection · Not all data can be postprocessed if more than one type of GNSS receiver was used to collect the data. If you want to change the receiver you are using, close the current data file. After connecting the new receiver, start a new data file and continue collecting data. · When the units displayed in ArcPad are changed, under Options, to Statute Feet, the GPScorrect extension continues to display estimated accuracy values in meters. To force the GPScorrect extension to display the estimated accuracy in the correct unit, disconnect and reconnect the GNSS receiver. Suspending a Windows Mobile powered device Before you suspend a Windows Mobile powered device running the Trimble GPScorrect extension, you must: · · close all data files disconnect from the GNSS receiver C CAUTION ­ Failure to close all data files or to disconnect from the GNSS receiver may result in corrupted data. Trimble GPScorrect Extension Release Notes 5 VRS networks · Positions collected using a receiver without H-StarTM technology that have been corrected in real time using a VRSTM network may be less accurate after postprocessing using the Trimble GPS Analyst extension for the Esri ArcGIS Desktop software or the GPS Pathfinder Office software. This is because the Differential Correction wizard uses a single base station, which is usually farther from the rover than the VRS system. Data that has been corrected in real time using corrections from a VRS system may not require postprocessing: care must be taken, as the GNSS positions recorded in the SSF file are recorded in the reference datum of the correction source. The AT command set is a standard language for communicating with modems. To establish a dial-up connection with a network or system provider using some cellphones (such as some Nokia models), you may need to send AT commands from the field computer to put the cellphone into ISDN mode. The Windows Mobile operating system cannot send these commands. [. . . ] This may cause the GPScorrect extension to miss GNSS position reports from the receiver. Trimble recommends that you use smaller extents or a smaller background map size. · · White lines on background maps ArcPad 10 may draw white, horizontal lines on the background map. · Logging multiple linear traverses If you log more than one linear traverse, ArcPad does not notify the Trimble GPScorrect extension of the location of the second and subsequent traverses, so they are not logged in the GPScorrect SSF file. You will be unable to differentially correct the features that contain the second and subsequent traverses. To avoid this issue, exit and restart ArcPad each time you have logged a linear traverse. · Appending GNSS vertices If you append a GNSS vertex to a polyline feature, ArcPad does not notify the Trimble GPScorrect extension of the appended geometry. [. . . ]