Famous Trails MD7010, MD3005 owner manual False Signals, Pinpointing A Target, Detection Hints

6.Try finding other metal in the area. When you find a metal item, wait a few seconds after the tone stops before continuing, to allow the detector time to reset (or, press the red button on the handle to return the pointer to the center of the view meter).

FINE-TUNING THE DETECTOR

After you become familiar with how your detector works, you can fine-tune it to make it

Note: Each time you use the detector in a different area, you must adjust DISCRIMINATION. Each search location presents new challenges.

FALSE SIGNALS

Because your detector is extremely sensitive, trash-induced signals and other sources of interference might cause signals that seem confusing. The key to handling these types of signals is to dig for only those targets that generate

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PINPOINTING A TARGET	3.	Repeat Steps 1-2 at a right angle to the
	original search line, making an “X” pattern.
Accurately pinpointing a target makes digging	The target should be directly below the “X”
it up easier.	at the point of the loudest response.

Accurate pinpointing takes practice, and we suggest you practice finding and digging up small metal objects on your own property before you search other locations.

more selective in what it finds.

Discrimination is the detectors’ ability to differentiate between types of metal. The

detector’s DISCRIMINATION setting determines whether the detector will distinguish between different types of ferrous and non-ferrous metals.

You can set DISCRIMINATION to minimum (fully counterclockwise), to maximum (fully clockwise), or anywhere in between. As you set DISCRIMINATION to higher levels, the detector first does not detect small pieces of silver paper, then thick foil, and finally metal objects like pull tabs from aluminum cans.

a strong, repeatable signal. As you sweep the search coil back and forth over the ground, learn to recognize the difference between signals that occur at random and signals that are stable and repeatable.

To reduce false signals when searching very trashy ground, scan only a small area at a time using slow, short overlapping sweeps.

DETECTION HINTS

No detector is 100 percent accurate. Various conditions influence metal detection. The detector’s reaction depends on a number of things:

zThe angle at which the object rests in the ground

zThe depth of the object

zThe amount of iron in the object

zThe size of the object

Sometimes, targets are difficult to accurately locate due to the sweep direction. Try changing your sweep direction to pinpoint a target.

Follow these steps to pinpoint a target.

1.When the detector detects a buried target, continue sweeping the search coil over the target in narrowing side-to-side motion.

Make a visual note of the exact spot on the ground where the detector beeps.

2.Stop the search coil directly over this spot on the ground. Then move the search coil straight forward away from you and straight back toward you a couple of times. Make a visual not of the exact spot on the ground there the detector beeps.

Note:

zIf trash in an area is so heavy that you get false signals, slow your sweep speed and use shorter sweeps.

zRecently buried coins might not respond the same as coins buried for a long period of time because of oxidation.

zSome nails, nuts, bolts, and other iron objects (such as old bottle caps) oxidize and create a “halo” effect. A halo effect is caused by a mixture of natural elements in the ground and the oxidation created by different metals. Because of the metal mixtures, target signals might not be in a “fixed” position. This effect makes these objects very hard to detect accurately. (See “Fine-Tuning the Detector” on Page 10.)