Sensors & Software pulseEKKO, Product Manual, Page: 167 / 251

Collecting Data
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Figure 7-27: Drawing arrows on the screen to highlight targets and features
Touch the screen where you want the head of the arrow to appear, and then drag away in the
direction of the shaft. In the example above, the user touched near the hyperbola, then swept
their finger towards the top left to create the arrow. The direction of the arrow can be changed
by dragging your finger at right angles to the arrow shaft before lifting your finger from the
screen. Just like Interps, any number of arrows can be drawn on this screen. Touch any arrow
a second time to remove it.
7.2 Grid Scan
Acquiring GPR data in an organized grid over a defined area allows the data to be presented as
plan maps or in 3D. This is useful for locating all subsurface objects, as well as their orientation,
in a graphical manner that is easy to interpret.
From the main menu, ensure you are in the desired project then press the Grid Scan button to
enter the Grid setup menu.
7.2.1 Grid Setup
The setup screen in Figure 7-28 allows you to set the parameters of the grid, before data
acquisition begins. Information about the grid (grid number, size, spacing, time window, etc.) is
displayed on the left side of the screen.
The right side of the screen shows an image of the grid setup and lines to be collected,
including direction. It also shows the diagonal measurement which is valuable when you are
measuring out your grid to ensure the corners are square.