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2 vLoc3-9800 Receiver
4. Adjust the sensitivity control so that the bar graph reads approximately 75%. Now move the vLoc3-9800 forward and back
to detect the largest signal. You will also notice that there will be a “ghost signal” in front and behind the Sonde. This is
normal and characteristic of locating Sondes.
Ghost Peak
Ghost Peak
Main Peak
5. Now sweep left and right over the Sonde to obtain a second peak. Note that there are no ghost signals when sweeping left
to right over the Sonde.
Finally, check that the vLoc3-9800 is in line with the Sonde by rotating its axis to obtain a peak signal. The vLoc3-9800 is
now over the Sonde and in line with it.
