User's Manual

www.malags.com
43
Only a straight line appears on screen when taking a
reading:
Cause Action
The transmitter is not
turned on
Turn the transmitter on
Signal search has not
not been performed
Perform signal search
The transmitter is not
triggered by the CUII
Check the LED located on
the transmitter unit. If it
blinks the electronics
receives a correct trig
signal from the CUII
If the LED does not blink:
Check for dirt in the optical
connector in the
Transmitter
The ground is too
conductive for a GPR
survey
Check the system by
collecting a trace with the
antenna above the ground.
No traces are collected when survey starts:
Action
Check Trig setup and calibration with measuring wheel file.
Move the antenna in the correct direction.
Traces disappear during survey and only a straight line
appears intermittently:
Action
Check Tx fibre connection at the antenna.