Specifications

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Additional GPS receivers are used to locate linear objects
such as roads or collect data in a linear fashion for developing
topographic elevation data.
The recording interval should be set to collect the amount of
data needed relative to the speed of travel.
A recording interval too long will result in insufficient data.
After data collection is complete, data is downloaded from the
GPS receivers to an office computer for post-processing using
the GNSS Solutions software. The post-processing activity
computes positions of all observed points relative to one or
more fixed point positions. The Kinematic data collection
method is best used for delineating linear type features such
as roads, fences, lakes, etc.
Mobile Mapping with ProMark3
The ProMark3 system is also designed to log GIS features in
a job file.
GIS features can be of the following types: points, lines, areas
and grids. Grid features are Magellan’s specific features de
-
tailed in Logging GIS Data on a Preset Grid Feature on
page 102.
ProMark3 provides in real-time the length of the line you are
logging or the surface area of the area you are logging.
You don’t need an external antenna or any other accessories
to collect GIS jobs. You just need to hold the unit at 45° from
horizontal, not too close to you, and make sure you constantly
have an open view of the sky.