Garrett GTP 1350 User manual

To the Owner _______________________________ 5
GTP 1350 Parts _____________________________ 7
GTP 1350Assembly__________________________ 8
GTP 1350 Touchpad Functions
POWER ___________________________12
MENU / SCROLL ____________________13
Mode ______________________13
Sensitivity___________________15
Audio Threshold______________16
Frequency___________________16
Volume_____________________17
Tone_______________________ 17
Salt Elminination _____________17
Tone ID ____________________ 17
Backlight ___________________18
Battery Type_________________ 18
OPERATE__________________________20
ACCEPT/REJECT____________________20
PINPOINT / PROFILING ______________ 22
LAST MODE _______________________23
+ and - ____________________________ 23
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NOTE:
In order to take full advantage of the special features
and functions of the GTP 1350, carefully read this
instruction manual in its entirety.
Thank you for choosing Garrett's Graphic Target Profiling
1350™ metal detector with PowerMaster™ circuitry.
This high performance metal detector harnesses the
power of advanced Digital Signal Processor (DSP)
technology to provide extremely accurate multiple
channel filtering, continuous adaptation to hunting
speedsandautomaticground trackingforsuperiordepth,
discrimination and pinpointing performance.
The GTP is easy to operate and those who demand it,
will find the GTP 1350 meticulously adapts to their own
style of treasure hunting.
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Table of ContentsIntroduction
Graphic Target Profiling 1350

Congratulations! As the proud owner of the Garrett GTP
1350 you have joined an international family of treasure
hunters. Men,womenand even children alike have used
their Garrett detectors to find coins, relics and gold
nuggets that are valued in the millions of dollars. So, to
get the most out your GTP 1350 and treasure hunting
experiences be sure to carefully read through this
Owner's Manual!
Your GTP 1350 is the first of its class to offer size
information that will enable you to know more about your
target before you dig. With its exciting profiling
technology, you can know the size (Small, Medium,
Large)ofa target before you dig. And when coupled with
Garrett's highly acclaimed PROformance searchcoils,
you search deeper and cover more ground per sweep
than with traditional searchcoils.
Your GTP 1350 is also engineered with DSP enhanced
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LCD Graphic Display
Target ID Guide (Legend) _____________24
Upper Scale________________________24
Lower Scale________________________24
Numerical Reference Guide ___________ 25
Profiling Display_____________________25
Battery____________________________ 26
Operating Instructions _______________________ 27
Overload__________________________________ 33
Coin Depth Measurement ____________________ 34
Junk Targets_______________________________ 35
Field Operating Recommendations _____________ 36
Test Plot Contruction ________________________ 37
Bench Testing______________________________ 38
Batteries_____ _____________________________ 41
Headphone Jack ___________________________ 45
Hip Mount ________________________________ 46
Searchcoils________________________________ 47
Maintenance_______________________________ 48
Service and Repair__________________________49
Mind Your Manners__________________________52
RAM Books________________________________57
Specifications______________________________ 59
Warnings__________________________________56
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To the Owner

BeforeassemblingyourGTP1350metaldetectorensure
you have the complete set of parts, which include:
• Control Housing with S-shaped Ramrod Stem
• Upper Stem
• Lower Stem
• One (1) Spring Clip
• Two (2) Knobs
• Two (2) Washers
• One (1) Threaded Bolt
• Searchcoil
If any part is missing, please contact your local dealer.
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technology and is backed by 40 years of metal detection
research and development by Garrett's leading team of
engineers. It is unparalleled in its ability to locate coins,
jewelry and other metallic objects at greater depths than
any other metal detector in its class. And with Garrett's
revolutionary Graphic TargetAnalyzer (GTA) display that
offers target acceptance / rejection, precise
discrimination and other key information, you can spend
more time digging treasure and less time digging trash!
As the one of the world's most intelligent detectors, the
GTP 1350 is factory preset to begin operation in the
COINS mode. Simply press the POWER touchpad on
your new GTP 1350 and immediately begin hunting
without the troublesome interference from typical trash
items or ground minerals. Of course, you can easily
adjust the detector to operate in other hunting modes.
Again, welcome to the Garrett treasure hunting family. In
becoming a part of this great tradition and hobby, you
have made the right start to successful treasure hunting.
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GTP 1350 Parts

3. Insert the Threaded Bolt through the holes of the
searchcoil and hand-tighten the two Knobs (Figure 3).
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No tools are required to assemble the GTP 1350. Hand
tighten all necessary parts.
1.Compressandinsert thebuttonendsofthe SpringClip
into the black Lower Stem (Figure 1). This allows the
overall stem length to adjust for operating comfort.
2. Attach the Lower Stem to the Searchcoil by inserting
two Washers into the Stem (adhere to stem) and slip the
Searchcoil onto the Stem (Figures 2 and 3).
8Figure 3
Figure 2
GTP 1350 Assembly
Figure 1

6. Insert the cable connector into the connector on the
housing and hand-tighten securely (Figure 6).
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4. Install the Upper Stem to the Lower Stem (Figure 4)
and then this assembly to the GTP Control Housing by
depressing the two buttons and coupling the Stem to the
Housing unit. Adjust for the most comfortable operating
length.
5. Wrap the Searchcoil cable snugly about the stem with
the first turn of the cable over the stem (Figure 5).
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Figure 6
Figure 5
Figure 4

Each time the 1350 is turned on, it returns to the most
recent settings it was programmed to use. However,
modifications made to the COINS, JEWELRY, RELIC
and ZERO Discrimination settings are not stored by the
1350 when turned OFF.
MENU / SCROLL Touchpad
Press the MENU / SCROLL touchpad to scroll through
the MENU options to make adjustments to the detector’s
settings.
PresstheMENUtouchpad toadvancetoeachitem inthe
MENU selection or press the OPERATE touchpad after
making an adjustment to resume hunting. The 1350 will
automatically return to the OPERATE mode if no
touchpads are pressed within 30 seconds.
MODE (Discrimination Mode)
Press the + or - touchpad to select the desired
Discrimination MODE: COINS, JEWELRY,
RELICS, ZERO, or CUSTOM. The selected
MODE does not flash.
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The GTP 1350 has eight (8) touchpads that control all
operating functions. The battery pack and headphone
jack are located beneath the arm rest.
POWER Touchpad
Press the POWER touchpad once to turn the detector
ON or OFF. The detector will beep twice when turned
ON and once when turned OFF.
If, after making adjustments to the 1350, you wish to
return to the factory recommended settings, press and
hold the POWER touchpad for approximately ten (10)
seconds, or until the detector beeps twice.
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Touchpad Functions

CUSTOM MODE -ADiscrimination Mode that
is programmed solely by the operator. The
GTP 1350 is factory preset with the CUSTOM
Mode set the same as the COINS Mode. By
using theACCEPT / REJECT touchpad, an
operator can modify the Discrimination settings
to individual specifications, which will be
retained in the CUSTOM Mode.
SENSITIVITY
Press the + or - touchpad to select the desired
SENSITIVITY level, indicated on the Lower
Scale of the LCD panel. The 1350's Sensitivity
setting can be adjusted from 3 (least sensitive)
to 12 (most sensitive).
The default SENSITIVITY setting is
programmed at approximately 75 percent. It
may be necessary to reduce the SENSITIVITY
setting in locations where abnormal amounts of
interference, trash or other metal detectors are
present. In these situations, reduce the
sensitivity until the audio becomes stable. 15
COINS MODE - Designed to eliminate
detection of lower conductivity trash targets
such as iron, bottlecaps, most pulltabs and
other objects normally encountered in coin
hunting. Somebent pulltabs and pieces oftabs
may not be eliminated from detection. Some
digging of junk targets is to be expected on
occasion.
JEWELRYMODE - Designed to eliminate trash
targets such as lower conductivity items and
bottlecaps, while still detecting jewelry.
RELICS MODE - Designed to eliminate trash
targets normally associated with relic hunting,
while retaining good targets in the lower
conductivity range.
ZERO MODE - Designed to hunt with no
discrimination and alert the operator of every
metal target.
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VOLUME
Press the + or - touchpad to adjust the
VOLUME, indicated on the Lower Scale of the
LCD panel. The VOLUME setting adjusts the
sound level made when a target is located.
TONE
Press the + or - touchpad to adjust the TONE,
indicated on the Lower Scale of the LCD panel.
The TONE refers to the pitch of the sound the
detector makes when a target is found.
SALT ELIMINATION
Press the + touchpad to activate SALT
ELIMINATION or the - touchpad to deactivate
(flashing) SALT ELIMINATION. The SALT
ELIMINATION MODE eliminates interference
caused by wetted salt; a feature that is
particularly helpful when hunting on saltwater
beaches.
Tone ID
Press the + touchpad to activate the TONE ID
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When searching for very small or very deep
targets it might be beneficial to increase the
sensitivity setting as much as possible, prior to
thepointwherethedetectorbecomesunstable.
AUDIO THRESHOLD LEVEL
Press the + or - touchpad to adjust the audio
THRESHOLD level, indicated on the Lower
Scale of the LCD panel. The audio
THRESHOLD refers to the volume of the
background "hum" made by the detector when
no metal is being detected.
FREQUENCY
Press the + or - touchpad to select between 4
(four) operating FREQUENCY settings,
indicated on the Lower Scale of the LCD panel.
The FREQUENCY setting may need to be
changed when nearby electronic equipment or
other metal detectors cause interference.
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battery option. Press the - touchpad to
deactivate (flashing) the RECHARGABLE
battery option when using standard batteries.
This setting affects only the battery meter
readings, not detector operation.
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or the - touchpad to deactivate (flashing) the
TONE ID. When activated, the TONE ID
feature produces tones of varying pitches to
indicate a target's conductivity: high
conductivity targets produce a high-pitched
belltone; medium conductivity targets produce
a standard-pitched tone; and low conductivity
targets produce a low-pitched audio signal. A
high-pitched tone replaces the standard
belltone when the PROFILING feature is
activated. (See Table 1 on Page 19 for
additional information)
BACKLIGHT
Press the + touchpad to activate the
BACKLIGHT or the - touchpad to deactivate
(flashing) the BACKLIGHT. The BACKLIGHT
illuminates the LCD screen for low light or night
hunting conditions.
BATTERY TYPE
When using rechargeable batteries press the +
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Setting Function
Tone ID OFF / Profiling OFF
All tones have the same standard pitch.
Tone duration changes with the strength
of the target signal. (e.g. the stronger
the target signal, the longer the duration)
Tone ID OFF / Profiling ON
The tone duration changes, but the pitch
remains the same. (e.g. a small target
produces a quick, standard tone; a
medium target produces a medium,
standard tone; a large target produces a
long standard tone)
Tone ID ON / Profiling OFF
The tone of the detector changes to
indicate the conductivity of the target
(e.g. low conductivity produces a low
tone; medium conductivity produces a
standard tone; high conductivity
produces a high belltone).
Tone ID ON / Profiling ON
The tone duration varies with size and
pitch varies with conductivity. (No
belltone signal produced when Profile is
being displayed).
Table 1