Whites-electronics Spectrum XLT User Manual download pdf (Page 34)

12. Coarse G.E.B.

(Manual Ground Balance) Allows viewing the

current automatic Ground Balance setting (Air/

Ground Balance) and/or manual overriding of the

automatic Ground Balance.

COARSE & FINE G.E.B. (Ground Exclusion

Balance, or ground rejection) allows manual

override of the automatic balancing features to

select a specific Ground Balance setting.

COARSE allows major adjustments. FINE allows

minor adjustments near the COARSE setting.

Before attempting manual Ground Balance adjust-

ments, turn off AUTO TRAC™ since it will alter any

manual changes you make. Manual Ground Balance

will begin at the setting selected by the automatic

(Air/Ground Balance) sequence. An Automatic Air/

Ground Balance performed after manual adjustment

will cancel the manual setting. To maintain a manual

setting, the Automatic Air/ Ground sequence must be

avoided by squeezing and releasing the TRIGGER

when, and if, the Air Balance instruction appears. Air

Balance instructions may appear during Basic Adjust-

ment or Pro Options selections following the manual

adjustment.

When manually adjusting the Ground Balance, it is

necessary to make an adjustment in COARSE and/

or FINE, then squeeze and release the TRIGGER.

The TRIGGER can be held in, and the loop low-

ered and lifted over the ground to check for a

change in sound which would indicate imperfect

Ground Balance. To return to the Ground Balance

display for further adjustment, press either of the

ARROW controls. When perfectly Ground Bal-

anced in a search mode, the TRIGGER can be

squeezed and held, and the loop lowered and lifted

with very little change in the threshold hum.

COARSE G.E.B.

MIN MAX

Tips - Use for controlled

reactions to specific

minerals or hot rocks.

(G.E.B./Trac section)

Chapter 5 XLT

Pro Options

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 55 56

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Whites-electronics Spectrum XLT User Manual Page 34

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