Tips for locating sondes
Locating sondes with a vScan Receiver
The sonde signal pattern consists of three distinct peaks. A small peak, a large peak, followed by
another small peak with two “Nulls” between the peaks. The sonde is located under the center of
the large peak, also known as the Main Peak.
Locating Sondes with the vScan Receiver:
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Work as a team with one person on the locator and the other working the camera or
duct rodder.
When working with sondes always use a fresh battery.
Use a radio system or mobile phone for communication.
Work in increments of 10 to 20 feet (3 to 6m). Locate, mark, move and repeat.
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TIP
MAIN PEAK
GHOST PEAK
GHOST PEAK
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Turn on the vScan Receiver.
Use the mode paddle to enter the Sonde mode. The Sonde icon will now be visible on
the screen.
Position the vScan above the Sonde as indicated below: (The rotational orientation of the receiv-
er is 90 degrees to that used when line locating)
When locating sondes, we will locate the sondes forward/backward position and then locate the
left/right position.
