Whites DXF User Manual download pdf (Page 50)

Chapter 5 DFX

™

Pro Options

(Preamp Gain section)

29. Preamp Gain

Selects the intensity of the signal received from the

loop.

PREAMP GAIN (called

Signal Balance

on some

models) is used to promote stability and perfor-

mance. Like a sensitivity control, too much PRE-

AMP GAIN will result in unstable operation and

unreliable indications.

Unlike

a sensitivity control,

PREAMP GAIN will have a substantial effect on

OVERLOAD.

For maximum detection depth, ﬁ ne tune the PRE-

AMP GAIN to the highest number setting without

causing OVERLOAD, and/or unstable operation.

More adjustment levels (range) are available than

what may be usable. You may never encounter

an area where maximum PREAMP GAIN can be

used. Electrical interference may make it difﬁ cult

to receive an Air Balance at high PREAMP GAIN

settings.

Selections such as MIXED MODE or AUDIO

DISC OFF may not allow as high a PREAMP

GAIN level as other selections. This is normal as

some of these modes naturally see more targets and

ground, and they may still provide superior per-

formance and depth even with the lower PREAMP

GAIN selection.

Every time the PREAMP GAIN level is changed,

the detector should be re-ground balanced. Once

in an operating mode, simply press ENTER to re-

ground balance.

Tips -

Higher levels

increase detection depth.

However, the detector

must be stable to be able

to recognize a target.

OVERLOAD should not

appear on the display

when only ground miner-

als are present. Settings

from 1 - 4 are available.

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Whites DXF User Manual Page 50

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