Whites MXT User Manual download pdf (Page 29)

Chapter 6 MXT Searching

Coin & Jewelry MODE

The Coin & Jewelry MODE provides good general

purpose searching for a wide variety of targets and

environments.

From residential yards, parks and school grounds,

farm fields, to beaches (for beaches use TRAC

Salt), the Coin & Jewelry MODE should be used if

there is any doubt at all regarding which of the three

available MODEs is most practical for your current

search.

As the name implies, Coins & Jewelry are the

primary goals of this mode, however, these settings

and features will also respond to any better alloy

including common relics and any other item made

of a valued metal alloy.

The 1st choice a user should consider is the selec-

tion of an appropriate TRAC toggle setting for the

area. The Ground setting and Salt settings should

be almost self explanatory. If you are searching in

typical ground, use the TRAC Ground setting. If

you are in a salt water or desert alkali ground

condition, use the TRAC Salt setting. When to use

the Lock setting can be less obvious. If it seems

like something is wrong with the detector, wildly

fluctuating Threshold hum (only while sweeping

the search coil), try the Lock setting. If the detector

smooths out and starts operating more predictably,

you made the correct choice. If there isn't any

change, you may need to either reduce the Gain

control counterclockwise and/or increase the Dual

control (Disc) clockwise and try again. An area

littered with man made iron would dictate the Lock

setting. On the other hand an area littered with

small aluminum foil would not, such an area would

dictate the Reduced Gain and/or higher discrimina-

tion settings.

The 2nd choice is Gain. Some areas require, and

some operators just prefer the more predictable

operation reduced Gain settings provide, where as

others prefer to push Gain to the limits of their

patience to find the deepest targets. There is a point

of diminishing returns either indicated by the

display telling you to lift the loop due to a Gain

setting too high for the ground, or a user missing

targets because they can not sort them from spo-

radic noise experienced at high Gain.

The 3rd choice is the alternate MODE "Pull Tab

Notch" accessed by pushing the Trigger (on the

hand grip) forward. Many prefer, after locating a

target in the primary Trigger center position, to

check targets with the Pull Tab Notch, others use

the Pull Tab Notch as their primary search mode. It

depends a lot on the area and degree of aluminum

Pull Tabs present. Remember, the display will

indicate if a metal target is in the Pull Tab range in

either Trigger position. Also remember a metal

target that indicates in the Pull Tab range however,

provides a deep depth indication, is more likely to

be jewelry than a Pull Tab. There are three types of

targets that typically indicate in the Pull Tab range,

Aluminum, Lead, Brass, and Gold. Without consis-

tency in size/shape, all a metal detector can tell you

is that it indicates within that range of targets. It is

up to the operator to identify the common trash

items of each area and then gamble with the odds

weighing the likelihood of good targets compared to

wasted time digging trash.

The 4th choice is the level of audio Discrimination

(DUAL CONTROL). The "P" setting provides a

popular setting rejecting most iron and small foil

and accepting nickels and most jewelry. Remember

you have the display to further sort out accepted

metals. However, if the common trash of the area

consistently produces an audio to the point of

distracting from finding anything at all, an operator

can increase discrimination (clockwise) and cherry

pick the area for silver and copper. If a hot spot of

multiple coins is located an operator may then want

to search isolated spots within that area at lower

discrimination settings. Even with modern discrimi-

nating metal detectors, it takes a good deal of

patience to search high trash areas.

The 5th choice is Threshold level. It is best to

search with a continuous hum or threshold (edge of

sound). You can hear rejected targets (threshold

fades) and be made aware when and where concen-

trations of trash items lay, indicating traffic areas

more likely to produce good targets. It, however,

requires more patience and concentration. Finding

the Threshold, and then setting the Threshold just

counterclockwise of it (Silent Search), provides

good performance for those who can not tolerate the

continuous Threshold hum all the time.

Chapter 6 MXT Searching

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Whites MXT User Manual Page 29

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