16
Control Elements
4.1 Control Unit
The control unit is the processing center of the Gepard GPR. It collects data from the underground and sends
it to an Android Tablet PC, where a graphical representation of underground anomalies is shown.
4.1.1 General overview
Figure 4.1 shows all important parts of the control unit.
Trigger button with LED: This button is the main control for turning on the unit, starting and stopping
measurements as well as turning off the unit. To turn on the Gepard GPR, simply press the trigger button one
time.
The unit will turn on and as a test it will illuminate blue for approximately 3 seconds, then it will turn
green. Do not press the trigger button during this startup period. The device is ready for operation as
soon as the green LED is illuminated.
To turn off the Gepard GPR, press and hold the trigger button for at least 3 seconds. When the green LED
turns off, you can release the trigger button. The meanings of the LED colors are as follows:
OKM GmbH
Connector for
transmitting antenna
Figure 4.1: Control unit of Gepard GPR
Trigger button
with LED
Mounting socket for
telescopic shaft
Connectors for antennas
Tablet holder
with magnets
Handle
Mounting socket for
telescopic shaft
