Product Manual

eliminate unwanted signals from interfering objects.

Lower the tip of the Mag Horn near the surface of the

ground and begin a slow sweep from left to right. Based

on the depth and position of the object, more sensitivity

may be required. It is up to the locator to make this

determination and properly set the sensitivity.

As you near a ferrous object the tone of the Mag Horn

will respond by increasing its pitch, becoming more

shrill. This is an indication that you are near a ferrous

object.

When you are above the target, sweep in an “X” pattern

as shown above. As you sweep, note where the signal

peaks or is most shrill. Adjust your “X” pattern sweep

until the peak from each sweep direction occurs in the

same spot. This will help you to find the center of the

target object.

On vertical objects, such as property pins, the peak

signal will occur directly over the center of the pin. On

horizontal objects, like manhole covers, the peak signal

will occur at each edge. See the section for Locating

Property Markers (Section 4.2) and Man Hole Covers

(Section 4.5) for more detail.