GSSI SIR 30, Manual

Page: 77 / 150

Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 71
Figure 106: Surface % = 0. Range displayed = 20 ns.
In Figure 106 (above) there is approximately 2 ns of ‘dead time (area between light blue arrows) above the
direct coupling (dark blue arrow).
7
Select RADAR CONFIG > MAINTENANCE.
a)
Calibrate the Survey Wheel: Select CALIBRATE SW.
o
Mark a measured distance on your survey surface. The longer the distance of the calibration
line, the more accurate the SW calibration will be. Enter the value in the Distance box.
o
Position the antenna(s) or vehicle on the zero or start point of the measured distance and click
the Start button.
o
Move the antenna/vehicle to the end of the calibration line and then click the Stop button. You
will see the updated calibration value beneath New.
o
Repeat the process at least once to make sure you get consistent numbers.
b)
Configure the GPS: The User should ensure power is supplied to the GPS, that the GPS is On and
that the GPS serial cable is connected to the GPS COM port on the SIR 30. The User should go to
the Systems Settings menu and set the GPS type to Custom.
Figure 107: GPS System Settings.