GSSI SIR 30, Manual

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Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 35
Figure 52: Surface Mode Manual, Surface 0%.
RADAR CONFIG > SYSTEM SETTINGS
After selecting the desired linear units from the SIR 30 start screen, the SIR 30 will display the System
Settings menu shown in Figure 53 below. It is here that the User will specify the geometry of the data
collection setup. This includes the position of the antenna(s) relative to one another, the location of the
GPS receiver, the offset distances of the GPR antennas from the GPS receiver, as well as the desired scan
density and mark spacing.
*See: Appendix C for a list of GSSI antenna pulse widths.
Figure 53: Initial system settings.
DISTANCE CONTROL:
This controls the horizontal scan density. The horizontal scan density, or Scans
per Unit distance will be recorded in the horizontal units selected by the User from the System Start
screen. In Figure 53 (above), the option shown is 12 scans\ft. The horizontal scan density should be set
high enough so that the smallest feature of interest is detectable yet not so high that large amounts of