Using The Earthmate Pn-40 In The Field - DeLorme Earthmate PN-40 User Manual

2. With the GIS utility layer loaded into the GIS tab, use the spatial query tool to isolate the line
objects within a particular quadrant.
3. From the ImageReg tab, open the digital image of the schematic map for the quadrant. Use
the GIS line layer as reference to place points on the digital image that correspond to points on
the DeLorme map. Then, process the image to geo-register it to the map.
4. Visit the state GIS website and download any digital aerial imagery in MrSID or GeoTIFF format
that corresponds to the quadrant (if available). Use the Map Data tab to load the imagery into
XMap.
5. From the Handheld Export tab, center the map on the quadrant and customize the handheld
grid size to best fit the area. Then, click the Select/Edit tool and select the grids on the map
that cover the quadrant.
6. Click the Options button and select the check box next to each dataset to transfer to the
Earthmate PN-40. For high-resolution aerial imagery, select User Raster Data Snapshot.
For GIS data, select GIS Layers. For DeLorme topographic and road data, select XMap USA
Topographic Data. For scanned historic maps registered to the map using ImageReg, select
ImageReg Data Series. Customize the display ranges of the datasets based on your
preferences.
7. Name and save the map package. Then, click the Exchange button on the Handheld Export
tab or in the toolbar. Send the mile marker waypoint layer and saved map package to the device
and then click Done.

Using the Earthmate PN-40 in the field

With all the data transferred to the Earthmate PN-40, the field crew for each quadrant is ready to
head into the field to update and verify the utility data. One field crew is responsible for updating
a quadrant with significant additions and changes to the existing infrastructure. They have a list of
mile marker ranges where these changes took place.
1. Use the Routes option on the Earthmate PN-40 to create a route from the field office (current
GPS location) to the utility waypoint mile marker next to the service road entrance.
2. Once the field crew arrives at the entrance, the worker with the Earthmate PN-40 directs the
driver to each mile marker on the list where utility additions and modifications were made.
Scenarios
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