Whites-electronics Spectrum XLT User Manual download pdf (Page 22)

Chapter 4 XLT

Basic Adjustments

7. A.C. Sensitivity

Used to select the appropriate sensitivity (degree

that the instrument is responsive to signals) while

being used in the discriminate modes (those which

require movement of the loop).

Select A.C. SENSITIVITY with the ARROW

controls, and press ENTER. Use the ARROW

controls to set the level of sensitivity shown by the

number on the right. Press ENTER.

Sensitivity levels adjust detection depth and also

have a direct effect on detector stability. A.C.

SENSITIVITY levels should be selected carefully

to allow stable, predictable performance. Set a

lower level if the detector behaves erratically.

A.C. SENSITIVITY

MIN MAX

Tip - Preset levels work

well for most conditions.

Reduced levels will

improve stability in difficult

conditions. Increased

levels will improve

detection depth if stability

can be maintained.

Tip-Remember that once

the TRIGGER is

squeezed and released to

go to a search mode, you

can return to the last

adjustment screen used

by pressing either

ARROW control.

8. D.C. Sensitivity

Used to select the sensitivity (degree that the detector

is responsive to signals) while the detector is being

used in non-discriminate modes. These are modes that

do not require movement of the loop to respond. D.C.

SENSITIVITY fine tunes stability and pinpointing.

Select D.C. SENSITIVITY with the ARROW

controls, and press ENTER. Use ARROW controls to

select the desired D.C. SENSITIVITY level shown by

the number on the right. Press ENTER. D.C.

SENSITIVITY levels should be selected carefully to

allow smooth, stable and predictable operation while

allowing for reasonable pinpointing.

A.C. and D.C. Sensitivity Adjustments are

traditionally the way to alter detection depth and

stability. There are other methods available in the

PRO OPTIONS under SIGNAL (TRANSMIT,

RECEIVE), PREAMP GAIN.

D.C. SENSITIVITY

MIN MAX

Tip - Typically, lower

D.C. SENSITIVITY

settings pinpoint shallow

targets far better than

high settings. High

settings will however,

produce more pinpointing

(as well as non-

discriminate mode

depth). Pinpointing

(TRIGGER squeezed),

MIXED-MODE, and

V.C.O. AUDIO are

dramatically impacted by

the D.C. SENSITIVITY

setting.

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Whites-electronics Spectrum XLT User Manual Page 22

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