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- 1). Decide what you want your GPS to do. The term "engineering grade GPS" encompasses many different models. For example, several state-based stations participating in the United States Geological Survey (USGS) use the Magellan ProMark3. This $9,999 device has tremendous capability but is also much more complicated to operate than a standard handheld GPS designed for camping.
- 2). Go to http://www.ashtech.com and search under "store finder" to locate the closest retailer near you.
- 3). Select one to purchase online at http://www.stakemill.com if the closest Ashtech retailer is too far from your location. This site is geared specifically toward professionals who use GPS and survey equipment. You can search through the available products to see the exact features and capabilities of each device, along with who the typical users are, such as an environmental conservationists or city planners.
- 4). Complete your order by entering your payment and shipping information.
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