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Radiodetection RD1500 User Manual

Radiodetection RD1500
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Grid Scan
RD1500 Operation Manual 52 © Radiodetection 2016
Grid Size
Press the + and - buttons under Grid Size at the bottom of the screen to change the dimensions
of the grid. Alternatively, you can press the + and - buttons on the screen beside Grid Size on
the upper part of the screen.
In metric units, the available grid sizes are 5m x 5m, 10m x 10m and 15m x 15m.
In US standard units, the available grid sizes are 10ft x 10ft, 20ft x 20ft and 50ft x 50ft
Grid Resolution
Grid resolution determines the spacing between grid lines. This can be varied by pressing the +
and - buttons under Grid Resolution at the bottom of the screen. Alternatively, you can press
the + and - buttons on the screen beside Grid Resolution on the upper part of the screen.
Available options are 0.25m, 0.5m and 1.0m in metric units and 1, 2 & 5 ft in US standard units.
The best images will result when the smallest resolution value is used.
Calculating Resolution
The size of target will determine line spacing. The RD1500 must pass over a target to detect it,
so line spacing needs to be of the order of the size of the target or smaller when practical. This
can be adjusted to a larger spacing for larger targets or targets that are linear. Tighter line
spacing does take longer to collect and the highest resolution may not be economically feasible
in all circumstances.
NOTE: The system will not allow you to select a 10ft x10ft grid with a low resolution of 5ft, as
this resulting image will be very poor due to inadequate data collected.
Starting data collection
Press Start when all the parameters are set up and data collection is ready to begin
9.2 Laying out the grid
Positional accuracy of each line is vital to locating targets of interest once data has been
processed.
For linear targets such as pipes and utilities, the best GPR responses occur when the GPR
survey line crosses the target at right angles. Keep this in mind when laying out the grid and the
orientation
An example grid layout is shown in Figure 9-2.

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Radiodetection RD1500 Specifications

General IconGeneral
BrandRadiodetection
ModelRD1500
CategoryRadar
LanguageEnglish

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