Download AT Gold - Garrett

 Garrett's exclusive Target ID technology provides two
indicator scales which allow you to see the detector’s
discrimination setting (Lower Scale) as well as the analysis
of each target (Upper Scale). In addition, the Digital Target
ID provides a more specific target value. The AT Gold also
features High Resolution Iron Discrimination (40 points)
for separating desirable targets from iron junk, several
advanced audio features, and a standard 5"x8" (13x20cm)
DD searchcoil optimized for detecting small nuggets in
challenging mineralized soils.
Backed by more than 45 years of extensive research and
development, your Garrett AT Gold metal detector is the most
advanced of its kind in the industry. The AT Gold's advanced
audio features are designed for the serious prospector but will
also prove to be very appealing to coin and relic hunters.
In order to take full advantage of the special features and
functions of the AT Gold, you are urged to carefully read this
instruction manual in its entirety.
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Garrett Metal Detectors
TABLE OF CONTENTS
AT GOLD Control Panel........................................................................................4
Quick Start Guide...................................................................................................5
AT GOLD Components............................................................................................6
List of Parts............................................................................................................7
Assembly..................................................................................................................8
POWERING ON..........................................................................................................11
TARGET INFORMATION............................................................................................ 12
DIGITAL TARGET ID...................................................................................................13
SENSITIVITY..............................................................................................................15
GROUND BALANCE...................................................................................................16
Automatic Ground Balance...............................................................................17
Manual Ground Balance...................................................................................17
Adjustable Ground Balance Window���������������������������������������������������������������18
FREQUENCY ADJUSTMENT......................................................................................21
THRESHOLD ADJUSTMENT..................................................................................... 22
SEARCH MODES OVERVIEW................................................................................... 23
ALL METAL MODE.....................................................................................................24
ALL METAL Mode Overview...............................................................................24
Audio Characteristics of ALL METAL Mode���������������������������������������������������� 25
DISCRIMINATION MODES....................................................................................... 26
DISC Modes Overview...................................................................................... 26
Tone ID in DISC Modes.................................................................................... 26
Audio Characteristics of DISC Modes�������������������������������������������������������������27
DISC 1 Mode (Zero Discrimination Pattern)���������������������������������������������������27
DISC 2 Mode (U.S. Coins Discrimination Pattern)����������������������������������������� 28
IRON DISCRIMINATION........................................................................................... 29
Iron Audio............................................................................................................. 32
Iron Audio Use in DISC Modes......................................................................... 32
Tip for Using Iron Audio.................................................................................... 34
Iron Audio Use in ALL METAL Mode��������������������������������������������������������������� 35
AUDIO CHARACTERISTICS....................................................................................... 36
Proportional Audio Target Examples���������������������������������������������������������������37
BENCH TESTS.......................................................................................................... 38
SWEEPING THE SEARCHCOIL..................................................................................41
PINPOINTING........................................................................................................... 43
Tip for Narrowing the Detection Area������������������������������������������������������������� 45
Alternative Pinpointing Techniques���������������������������������������������������������������� 46
ADVANCED TIPS AND TECHNIQUES....................................................................... 48
PROSPECTING TIPS................................................................................................. 52
underwater operation..................................................................................... 54
Care and maintenance...................................................................................... 56
Battery Replacement....................................................................................... 56
Troubleshooting Guide.................................................................................... 58
Metal Detecting Code of Ethics������������������������������������������������������������������� 59
Cautions................................................................................................................ 60
Warranty / Service.............................................................................................61
Accessories.......................................................................................................... 62
Suggested Reading............................................................................................ 64
AT Gold™
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