Garrett Metal Detectors Graphic Target Profiling 1350 User Manual

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Owner’s

Manual

INTRODUCTION

Graphic Target Profiling (GTP) 1350

NOTE:

In order to take full advantage of the special features and functions of the GTP 1350, please read this instruction manual.

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 speeds and automatic ground tracking for superior depth, 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 CONTENTS

To The Owner . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . 5

GTP 1350 Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

GTP 1350 Assembly . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 8

GTP 1350 Touchpad Functions

POWER MENU / SCROLL

OPERATE ACCEPT / REJECT PINPOINT / PROFILING LAST MODE

+ and - ....

LCD Graphic Display Target ID Guide (Legend) Upper Scale Lower Scale Numerical Reference Guide Profiling Display

Battery ....

Operating Instructions . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 25

Overload Audio . . .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 31

Coin Depth Measurement . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 31

.. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

. . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Sensitivity . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Audio Threshold . . . .. . . . . . . . . . .. . . . . . . . . . . 15

Frequency . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . 15

Volume . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . . . . . 15

Tone . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Salt Elimination . . . . . . . . . . .. . . . . . . . . . .. . . . . 16

Tone ID .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . 16

Backlight . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 17

Battery Type . . .. . . . . . . . . . .. . . . . . . . . . . . . . . 17

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. . . . . . . . . . . . . . . . . . . . . .. . . . . . 21

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Junk Targets . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Field Operations . . . . . . . .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 33

Test Plot Construction . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Bench Testing . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . . . . . 35

Batteries ........ . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Headphone Jack . . .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 40

Battery Pack Hip Mount . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . 40

Searchcoils ... . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Maintenance . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Service and Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Mind Your Manners . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . 45

RAM Books... . . . . . .. . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 47

Warning! ........ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 49

RAM Books Order Form . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. 51

Features and Specifications . . .. . . . . . . . . . . . . . . . . . . . . . . . . 53

Garrett Metal Detectors

TO THE OWNER

Congratulations! As the proud owner of the Garrett

GTP 1350 you have joined an international family of treasure hunters. Men, women and children alike have used their Garrett detectors to find coins, relics and gold nuggets that are valued in the millions of dollars. 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) of a 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

technology and is backed by 40 years of metal detection research and development by Garrett’s

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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. With Garrett’s revolutionary

Graphic Target Analyzer (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

Before assembling your GTP 1350 metal detector ensure you have the complete set of parts, which include:

• Control Housing with S-shaped Ramrod Stem

• Upper Stem

• Lower Stem with Spring Clip

• Two (2) Mounting Washers

• One (1) Wing Nut

• One (1) Threaded Bolt

• Searchcoil with Cable

• Instruction Video

• Warranty Registration Card

If any part is missing, please contact your local dealer.

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GTP ASSEMBLY

No tools are required to assemble the GTP 1350. Hand tighten all necessary parts.

1. Press the two Mounting Washers into the Lower

Stem. See Figure 1.

Figure 1

2. Slide the searchcoil onto the Stem (Figure 2).

Figure 2

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3. Insert the Threaded Bolt through the holes of

the Lower Stem and Searchcoil. Hand-tighten the

searchcoil assembly with the remaining Wing Nut.

See Figure 3.

Figure 3

4. Depress the Spring Clip and insert the Control Housing into the Upper Stem.

5. Depress the Spring Clip in the Lower Stem to adjust to the most comfortable operating length.

See Figure 4.

Figure 4

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6. Wrap the Searchcoil cable snugly about the stem with the first turn of the cable over the stem. See

Figure 5.

Figure 5

7. Insert the Cable into the Connector of the Control

Housing and hand-tighten. See Figure 6.

Figure 6

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TOUCHPAD FUNCTIONS

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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Each time the GTP 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.

Press the MENU touchpad to advance to each

item in the 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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COINS MODE—Designed to eliminate detection of lower conductivity trash targets such as

iron, bottle caps, most pull tabs and other objects normally encountered in coin hunting. Some bent pull tabs and pieces of tabs may not be eliminated

from detection. Some digging of junk targets is to

be expected on occasion.

JEWELRY MODE—Designed to eliminate trash targets such as lower conductivity items and

bottle caps, 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.

CUSTOM MODE—A Discrimination Mode that is

programmed solely by the operator. The

GTP

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1350 is factory preset with the CUSTOM Mode set the same as the COINS Mode. By using the ACCEPT / 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 set to 9 (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. When searching for very small or very deep targets it might be beneficial to

increase the sensitivity setting as much as

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possible, prior to the point where the detector becomes unstable.

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.

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 detected.

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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 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-

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pitched audio signal. A high-pitched tone replaces the standard belltone when the PROFILING feature is activated. (See Table on Page 18 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 (+) touchpad to activate the RECHARGEABLE battery option. Press the (-) touchpad to deactivate (flashing) the RECHARGEABLE battery option when using standard batteries. This setting affects only the battery

meter readings, not detector operation.

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Setting

Tone ID OFF/Profiling OFF

Tone ID OFF/Profiling ON

Tone ID ON/Profiling OFF

Tone ID ON/Profiling ON

Function

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).

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).

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).

The tone duration varies with size and pitch varies with conductivity

(No belltone signal produced when Profile is being displayed).

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OPERATE Touchpad

Press the OPERATE touchpad at any time to

return to the hunting mode while making changes or adjustments during the MENU / SCROLL

sequence.

ACCEPT / REJECT Touchpad

Use the ACCEPT / REJECT touchpad to modify the

Notch Discrimination pattern, shown on the Lower Scale of the LCD screen.

Press the (+) or (-) touchpad to move the Target

ID cursor to the right or left. Press the ACCEPT/ REJECT touchpad to activate or delete the LCD cursor, located on the Lower Scale, directly below the Target ID cursor. Press the OPERATE touchpad

to resume hunting when Notch Discrimination modifications are completed.

The GTP 1350 does not produce an audible response when it locates a target found in notched

(blank) regions of the Lower Discrimination scale.

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Modifications made to the Lower Discrimination scale in

the CUSTOM Mode will be retained when the detector is turned OFF, until manually changed by the operator or

until the detector is returned to the factory default settings

by pressing and holding the POWER touchpad. Any

changes made to Discrimination settings while hunting in

all other MODES will be lost when the detector is turned OFF and will return to the factory default settings.

Discrimination settings can also be modified quickly

when an unwanted target is located while hunting. When

an unwanted target is discovered, press the ACCEPT / REJECT touchpad to create a Notch (delete the cursor)

for that specific target.

You may want to customize your Discrimination settings when you are looking for a specific item, a lost earring for example. You can use the matching earring to set notches on your GTP 1350 to accept only that target. Hunting in an area where a specific type of

trash is abundant may be another reason to customize

your Notch Discrimination settings. You can reject the specific type of trash and continue to hunt with no other discrimination, detecting all other metal.

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PINPOINT (Coin Depth) / PROFILING Touchpad

Press and hold the PINPOINT touchpad to enter the PINPOINT Mode and find the exact location and coin depth of a target.

When the PINPOINT touchpad is released the

PROFILING feature will automatically turn ON

to provide target size information. To exit the

PROFILING feature, briefly press and release the PINPOINT / PROFILING touchpad again.

When enabled, the PROFILING feature visually

indicates the size (Small, Medium, Large) of detected

targets on the LCD screen as well as with three (3)

distinct audio durations.

(See page 27—30 for more information).

LAST MODE Touchpad

Returns the detector to the previous Discriminate

Mode. This feature can be used to rapidly switch between two (2) selected modes, such as COINS

and RELICS.

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+ and - Touchpad

Press the (+) and (-) touchpads to move the Target ID cursor when modifying Discrimination settings and when adjusting all MENU settings.

LCD DISPLAY

Lower Scale

Proling

Display

Target ID

Guide

Upper Scale

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Target ID Guide (Legend)

An illustrated Target ID Guide is located directly above the LCD screen. When hunting, the Target ID cursor will appear below the illustration that most likely indicates the type of target found, based on its conductivity. Three (3) color-coded bands correspond with the Small (red), Medium (blue) and

Large (green) target size shown on the Profiling display.

Upper Scale

The Upper Scale located at the top of the LCD screen is used to display the Target ID cursor, which

indicates the probable identity of a detected target. When the Pinpoint button is held down, this scale is

used to display the strength of the Pinpoint target

signal, as a bar increasing from left to right.

Lower Scale

The Lower Scale, or Notch Discrimination Scale, indicates those regions where the GTP 1350 will or

will not produce an audible signal when a target is

located. Where a notch is present (those regions of

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the Lower Scale where no cursors are visible) no audible signal will be produced by those targets.

The Lower Scale also indicates settings for

SENSITIVITY, THRESHOLD, FREQUENCY,

VOLUME and TONE as well as the depth of a coin-sized target (measured in inches) when pinpointing.

Numerical Reference Guide

The Numerical Reference Guide is used to indicate

SENSITIVITY, THRESHOLD, FREQUENCY,

VOLUME and TONE settings as well as the depth (in inches) of a coin-sized target when pinpointing.

Profiling Display

Located at the bottom of the LCD screen, the

Profiling Display indicates the size of a target (Small, Medium and Large).

Battery

The Battery scale, shown on the bottom, right hand

corner of the LCD screen, indicates the amount of

power remaining in the batteries.

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OPERATING INSTRUCTIONS

1. Lower the searchcoil to a level approximately one (1) inch above the ground.

2. Press the POWER touchpad, two (2) beeps

will sound to indicate the GTP 1350 is ON. Each time the 1350 is turned on, it returns to the most recent settings it was programmed to use, with the exception of modifications made to the Notch Discrimination settings in the pre-programmed

Modes. (See ACCEPT / REJECT on page 19 for

additional information.)

The GTP 1350 is engineered with Automatic Ground Balance technology to continuously measure ground mineralization and automatically adjust itself for optimum performance.

3. Begin scanning by moving the searchcoil from

side to side in front of you, in either a straight line

or a slight arc pattern. Keep the coil level and at a constant height of about one (1) to two (2) inches

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above the ground. Do not allow the searchcoil to raise or tilt at the end of the swing, much like a “golf”

swing. This can significantly degrade detection

performance. Scan the searchcoil at a rate of about two (2) to five (5) feet per second.

4. The GTP 1350 will produce an audio signal and illuminate a Target ID cursor on the LCD screen when metal is detected. The Target ID cursor

will appear directly below the Target ID Guide to reference the probable identity of the target.

Highly mineralized soils can occasionally produce improper Target ID readings. Raising the searchcoil

an inch or two as you scan over such soils can be helpful. Remember to keep the searchcoil level and

at a constant height. Be aware that encrustation, or patina, may also affect conductivity of a target resulting in improper Target ID.

5. When a target is located, make two (2) or three (3) repeated scans over it to determine its

approximate location.

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6. Pinpoint the target to find its exact location. Place the searchcoil on the ground near, but not directly

over the target’s suspected location. Then press and hold the PINPOINT touchpad. While maintaining contact with the ground, first scan the searchcoil left

to right then scan front to back (i.e. make an X) until

the loudest sound is produced, indicating the target

is directly beneath the center of the searchcoil.

In addition to the audio, the Upper Scale will also

indicate when you are directly over the target by

displaying the greatest signal strength, increasing from left to right. Simultaneously, the Lower Scale will indicate the depth (in inches) of a coin-sized

target. A target larger than a coin will indicate a

depth reading that is shallower than it actually is, and visa versa for a target smaller than a coin. Note

that the Upper Scale will also blink the Target ID

cursor, only as a reminder, of the Target ID that was

last obtained prior to entering the Pinpoint Mode.

7. The PROFILING feature automatically activates upon releasing the PINPOINT / PROFILING

touchpad after pinpointing the target. When the

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PROFILING feature is activated a target’s size

is indicated as Small, Medium or Large on the Profiling display. Small targets include those which

are approximately 1.5 inches in diameter or less

(e.g. most U.S. coins). Medium targets range from

approximately 1.5 to 4 (four) inches in diameter (e.g.

silver dollar or flattened drink can.) Targets greater than 4 (four) inches are classified as Large.

To obtain accurate size information, repeatedly

sweep the searchcoil side to side, 7 (seven) inches past the center of the target in a smooth, continuous motion. The full sweep motion should cover a total

of 14 inches (7 inches from each side of the target) with the target being in the center. (See Figure 7).

14"

Figure 7

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IMPORTANT! To achieve optimum results when Profiling:

• Isolate and pinpoint the target (Press and hold the PINPOINT touchpad) to determine its exact location.

• Make sure you are only detecting one target at a time. Profiling multiple targets at the same time may produce inaccurate results; if necessary, scan the target from different angles.

• Release the PINPOINT button and repeatedly

swing the searchcoil from side to side (not front to back) using a smooth, steady and continuous motion to Profile the target. Be sure to make a consistent sweep width

of 14 inches. The speed at which you swing the coil can range from as slow as 1.2 seconds between consecutive beeps up to as fast as 0.4 seconds between beeps. If the

target’s Profile (size) consistently displays

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smaller that actuality, then your Profiling sweep width is too wide. Conversely, if the target Profile displays larger than it actually is, then your sweep width is too narrow. Maintain

a 14” sweep width to correct this error.

Some targets may fall on or near the boundary of two sizes. In such cases, the PROFILING display may change between sizes on successive sweeps

(i.e. a screw cap may read Small to Medium).

When Profiling a target, a distinctive “chirp” at the beginning of each audible signal means that you’re

achieving a valid target profile. The audio’s duration (short, medium or long) denotes the target’s size

(Small, Medium, Large). The target size will also be

shown on the Profiling display. Targets that are too

deep, or too small, to be profiled are indicated with a short “blip” and a blank Profiling Display.

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OVERLOAD AUDIO

Very large and / or close targets may cause the GTP 1350’s circuitry to overload, resulting in inaccurate

Target ID and Profiling information. If target overload

occurs, as indicated by a machine-gun sound, raise

the searchcoil a few inches until the overload audio ceases.

COIN DEPTH MEASUREMENT

Pinpoint the target as mentioned in the PINPOINTING section. While still pressing the PINPOINT touchpad, check the Lower Scale to determine the coin-depth in inches. You will notice that coin-depth always indicates the shallowest (most accurate) reading

and will not be overwritten by subsequent off-center

scans.

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JUNK TARGETS

The GTP 1350’s factory default COINS mode will

not audibly respond to most junk targets. It may,

however, respond with a signal that is not as clear or sharp as that of a coin signal. It is recommended

that before digging these “blips”, the region where

the Target ID cursor is illuminated on the Upper

Scale is verified. Often, a junk target has been found

when a Target ID cursor illuminates irregularly.

It is not unusual for a junk target, such as an aluminum soft drink can to give an audio signal

indicating that a good target has been discovered

due to its conductivity. However, the Profiling Display can aid in the identification of such targets

before you dig.

Rusty iron targets may cause jumpy or non-

repeatable ID readings.

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FIELD OPERATIONS

As you walk, scan the searchcoil from side to side in a straight line or slight arc pattern. Keep the coil

level and at a constant height of one or two inches

above the ground while you scan at the rate of two

to five feet per second.

When scanning, do not hurry. Be methodical.

Overlap each scan sweep at least 25 percent of

the searchcoil’s width. Wear headphones to avoid

ambient noises and to concentrate on scanning. When you are searching in the ZERO Discrimination Mode, every metallic target will produce an audible

sound.

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TEST PLOT CONSTRUCTION

Your own test plot section will enable you to increase

your treasure hunting proficiency. Create a test plot

by burying several items at varying depths of one (1) to six (6) inches about 18 inches apart. Include coins, rings, nails, foil, pull tabs and bottle caps. Bury larger items, such as a 12 ounce soda can, approximately ten (10) inches deep. Clearly mark where each article is buried and its depth. Scan over

them while carefully studying the detection signals.

Newly buried objects, especially coins, will be more difficult to detect than items buried over time.

Experiment with various detection modes and pay close attention to audio, Target ID and Profiling signals as you scan.

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BENCH TESTING

Bench testing enables you to test typical trash items and learn about the discrimination capabilities of the GTP 1350 before taking it into the field or attempting

to alter the Discrimination settings. The following

tests should be performed as shown below with the searchcoil perpendicular to a bench, floor or other non metallic object.

1. Select the ZERO Discrimination Mode.

2. Pass various metallic objects across the bottom of the searchcoil at a distance of about

two inches. Each target will cause the sound to increase, which represents true, non-discriminating operation.

3. Select the COINS Mode.

4. Press the OPERATE touchpad

5. Pass the same metallic targets (as used in 2) across the bottom of the searchcoil and listen

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for the sound to increase only when certain items are scanned. Notice the specific segments on the Upper Scale of the display that are highlighted when various targets are passed across the searchcoil.

6. Perform the same tests in the JEWELRY Mode and observe the sounds produced.

7. Experiment with the ACCEPT / REJECT touchpad. Notice which of the 24 segments

are illuminated as you identify various targets.

8. Keep written records of the results and use them when hunting in the field. Remember that

your detector is a sensitive electronic

instrument, but is engineered to withstand

rugged treatment in the outdoors. Use your

detector to the fullest extent, but always protect and handle it with reasonable care.

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BATTERIES

The GTP 1350 requires eight (8) AA batteries (included), which are contained in two battery compartments that hold 4 (four) batteries each. These holders slide into the Battery Pack beneath the Arm Rest assembly. When replacing batteries,

ensure they are installed correctly and the holders are inserted into the case with the rivet at the

bottom of the holder towards the center of the case. Failure to install the batteries correctly may result in

electronic damage to the detector.

The condition of the batteries is continuously

displayed on the LCD display while the detector is

turned on. Five (5) or four (4) bars on the battery

scale (located on the LCD screen) indicate the

batteries are very good; three (3) bars indicate the batteries are good; two (2) bars and the batteries are adequate; one (1) single bar indicates the batteries need to be replaced. Batteries should be replaced

or recharged when there is only one segment illuminated. Internal circuitry ensures the detector’s

operation and performance are not affected by battery condition, until batteries are drained.

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The GTP 1350 is engineered with a battery saving feature. If no touchpads are pressed within 30 minutes of being turned ON, the detector automatically turns OFF in order to minimize battery use due to accidental turn ON.

Simply press the POWER touchpad to resume hunting.

The GTP 1350 does not come with an on-board battery recharge function.

Completely remove all batteries from the detector when

stored for extended periods.

Replace or remove batteries by following these

instructions:

1. Turn the

GTP 1350 OFF by pressing the POWER

touchpad.

2. Slide the battery case back slightly from its normal position beneath the Arm Rest. Place both thumbs

on the lower sides of the cuff with your fingers on

the front of the case. Firm pressure will then disengage the case from below the Arm Rest and allow it to slide backward.

3. Slip the two covers on the battery panel up and

remove them completely.

Garrett Metal Detectors

4. Slide out the two battery holders (which are not connected by the wire) by tilting the pack. Each of the holders contains four AA batteries.

5. Remove the old batteries.

6. Install new batteries. Carefully observe the polarity of the batteries and place them in the

holders.

7. Replace the battery holders in the

GTP 1350.

Ensure the rivet on each side of the battery holder is visible in the center of the battery

case. If the holders are replaced incorrectly, it

will be difficult to install the battery covers.

8. Press down and firmly slide each battery

cover into place.

CAUTION!

Use high quality rechargeable (NiCad, NiMH), carbon, alkaline or heavy duty batteries.

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HEADPHONE JACK

The headphone jack is located at the rear of the

battery pack under the armrest. Headphones are a valuable accessory of any metal detector to mask

interference from outside noise. They permit you to

hear small and deep targets that might be missed

when using only audio from the detector speaker. Headphones are particularly essential when hunting where noise of people and/or traffic is excessive.

BATTERY PACK HIP MOUNT OPTION

Hip mount adaptability is built into the GTP 1350. The purchase of an optional conversion kit is

not necessary. Since no extension cable cord is required, you never have to worry about winding it

around the detector’s stem or carrying it with you.

When you slip the hip mount battery pack off and attach it to your belt with the built in clip, you reduce the weight of your detector by almost a pound. The cable cord is conveniently coiled to prevent tangling.

When you use this hip mount feature, the GTP 1350

weighs less than 2 3/4 pounds. All controls are still

Garrett Metal Detectors

easily accessible and your GTP 1350 display is visible on the control stem of the detector.

The removable hip mount pack and built-in coiled cable permit easy reassembly of carrying and storage. When reassembling, be sure the cable slides into its tube and is not pinched between the arm rest and the battery compartment.

SEARCHCOILS

Garrett takes pride in offering you a wide selection

of searchoils and accessories that enable you to

personalize your detector for the way you like to hunt treasure.

The GTP 1350 comes with the 7x10” Elliptical

searchcoil and is suitable for general hunting purposes. Additional coils include:

• 10x14” DD

• 9” x 12”

PROformance

• 4.5” Crossfire II

When changing searchcoils, be sure to hand-tighten the knobs only. Do not use tools of any kind.

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MAINTENANCE

Avoid extreme temperatures as much as possible, such as storing the detector in an automobile during

hot summer months or in freezing weather.

Clean your detector frequently. Wipe the housing

after use and wash the coil with warm, soap water when necessary. Protect your instrument from dust

and sand as much as possible.

Your searchcoil is submersible; however, the control housing is not! NEVER submerge the control housing in water and ALWAYS protect it from heavy mist, rain or blowing surf.

Disassemble the stem and clean it after use in

sandy areas.

When storing longer than one month, remove

batteries from the detector.

Garrett Metal Detectors

SERVICE AND REPAIR

In case of difficulty, read this Owner’s Manual thoroughly to make certain your detector is not

inoperable due to manual adjustments (Press and hold the POWER button for ten (10) seconds

to return to the factory recommended settings). Contact your dealer for additional assistance.

When your detector must be returned to the factory

for service, make certain:

• You have checked batteries, switches and connectors. (Weak batteries are the most common cause of detector “failure”.)

• You have contacted your dealer, particularly if you are not familiar with the GTP 1350.

• You have included a letter that fully describes the problem and conditions under which they

occur. Make certain to include your name,

address and a phone number where you can be contacted between 8:30 a.m. and 4 p.m.,

C.S.T.

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• You have carefully packed the detector in its

original shipping carton or other suitable box. Make certain that proper insulation or

packing material is used to secure all parts. Do not ship stems or headphones unless they are part of the problem. Be certain to return all coils.

Ship to: Garrett Metal Detectors

1881 West State Street Garland, Texas 75042

Call Garrett’s Customer Service Department (800-527-4011) if you have further questions. Please allow approximately one week for Garrett technicians to examine and repair your detector after they receive it, plus

another week for return shipping. All equipment will be returned UPS or parcel post unless written authorization is given by you to ship collect by air parcel post, UPS Blue (air) or air

freight.

Garrett Metal Detectors

MIND YOUR MANNERS

Fill holes and obey NO TRESPASSING signs. A sincere request that Charles Garrett makes to every user of one of his detectors is that each hunt site be left in better condition than it was found. Thousands

of individuals and organizations have adopted this formal Metal Detector Operators Code of Ethics:

• I will respect private and public property, all historical and archaeological sites and will not conduct metal detector searches on these lands without proper permission.

• I will keep informed about and obey all laws,

regulations and rules governing federal, state

and local public lands.

• I will aid law enforcement officials whenever

possible.

• I will not cause willful damage to property of any kind, including fences, signs and buildings and will always fill holes I dig.

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• I will not destroy property, buildings or the remains of ghost towns and other deserted structures.

• I will not leave litter or uncovered items lying around. I will carry all trash and dug targets with me when I leave each search area.

• I will observe the Golden Rule, using good

outdoor manners and conducting myself at all times in a manner which will add to the stature

and public image of all people engaged in the

field of metal detection.

Garrett Metal Detectors

RAM BOOKS

Since your Garrett GTP 1350 is a truly universal

detector, all of the RAM books will be pertinent to its use. Of particular interest, however, will be The New Successful Coin Hunting by Charles Garrett, filled with “how to” tips and success stories about coin hunting. This is the complete 21st century guide to

searching for coins with a modern metal detector such as the GTP 1350.

For beginners, however, the new edition of Treasure Hunting for Fun and Profit will prove especially

interesting and helpful.

Treasure hunters will also appreciate the revised version of Garrett’s popular Modern Metal Detectors,

a basic text that will help you understand all types of metal detection equipment and how to use them. A special section of the revised edition is devoted to

the use of One-Touch computerized detectors.

Where can you hunt? How about ghost towns and deserted structures? You will read about them in

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Garrett’s Ghost Town Treasures. Also, Bob Marx’s Buried Treasures You Can Find identifies thousands

of sites across the United States where treasure is

known to have existed. In this fine book Bob also gives helpful advice about One-Touch detectors offered by Garrett.

Since the GTP 1350 can be used for finding gold nuggets and ore veins, you will be interested in Find Gold with a Metal Detector. All hobbyists are urged

to familiarize themselves with this most interesting and exciting aspect of metal detecting.

Garrett Metal Detectors

WARNING!

Any metal detector may discover underground

power lines, explosives or other items which when struck could cause personal injury. When searching for treasure with your GTP 1350, observe these precautions:

• Do not hunt in an area where you believe there may be shallowly buried underground electric

lines or pipes.

• Avoid striking any line known to be, or suspected to be, carrying electrical power.

• Do not disturb any pipeline, particularly if it could be carrying flammable gas or liquid.

• Use reasonable caution in digging toward any

target, particularly in areas where you are uncertain of underground conditions.

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Garrett Metal Detectors

RAM BOOKS ORDER FORM

Please send me the following RAM books:

(Please indicate number of copies desired.)

___ New Successful Coin Hunting ....................$9.95

___ Treasure Hunting for Fun and Prot .........$9.95

___ Treasure Caches Can Be Found.................$9.95

___ Ghost Town Treasures ................................$9.95

___ You Can Find Gold with a Metal Detector ....$9.95

___ Buried Treasures You Can Find ...............$14.95

___ Gold of the Americas..................................$9.95

___ New Modern Metal Detectors ..................$12.95

___ Gold Panning is Easy .................................$9.95

___ How to Find Lost Treasure*.......................$3.95

___ How to Find Gold ......................................$3.95

___ How to Search Sand and Surf ....................$3.95

* Free with the purchase of any other RAM book or

Garrett product. If you do not wish to purchase anything but would like a free copy of How to Find Lost Treasure, mail $2.00 for postage/handling to our address. U.S. orders only. For international orders, contact international@garrett.com.

Please send payment to:

RAM Publishing Co. 1881 West State Street

Garland, Texas 75042

(Order form continued on back of this page)

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MAIL-IN ORDER FORM

Add $2.00 for rst book, and $1.00 for each additional book

ordered (maximum $3.00) for handling and shipping charges.

Total for books $______________

8.25% Tax (TX/CA residents) $______________

Handling Charge $______________

TOTAL $______________

Payment Options:

___ Enclosed check or money order ___ I prefer to order through: ___ American Express ___ MasterCard ___ Visa ___ Discover

Card Number: ______________________________

Expiration Date of Card: _____________________

Phone Number: ____________________________

Signature: _________________________________ Required on credit card purchases

Name: ____________________________________

Address: __________________________________

__________________________________

City/State/Zip: _____________________________

Garrett Metal Detectors

FEATURES AND SPECIFICATIONS

Audio Threshold, Adjustable Audio Tone ID Coin Alert Belltone Audio

Digital Signal Processor (DSP)

Discrimination, GTA Accept / Reject Notch Frequency, Adjustable Graphic Target Analyzer (GTA), Target ID cursor Ground Balance, Automatic Ground Tracking Headphone Jack

Hip Mount Battery Pack Last Mode Switching LCD, Backlit Shows Target ID and Settings Microprocessor Controlled Pinpointing, Coin Depth Measurement PowerMaster Circuitry Profiling (Target Size) Salt Elimination Mode ScanTrack

Sensitivity / Depth Adjustment

Speaker Surface Mount PC Board Technology

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Touchpad Controls with One-Touch Operation Volume Control

Length: 40” to 51” - Adjustable Weight: 4.0 lbs (1.9 kgs) Frequency: 7.2 kHz 8 AA Battery operation (batteries included) 5 year warranty Search Modes: Coins, Jewelry, Relics, Zero and

Custom Discrimination with Visual Target ID Settings: Sensitivity, Threshold, Detection

Frequency, Volume, Tone and Full-Range Multi-

Notch Discrimination

Proof of Garrett excellence is the recognition

given them by the following United States patents: 4,709,213; 4,488,115; 4,700,139; 4,398,104; 4,423,377; 4,303,879; 4,334,191; 3,662,255; 4,162,969; 4,334,192; 5,148,151; 5,138,262; 5,721,489; 5,786,696; 5,969,528; Design 274,704 and 297,221; Design 333,990; G.B. Design 2,011,852; Australia Design 111,674 and other

patents pending.

Garrett Metal Detectors

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1881 W. State Street

Garland, Texas 75042

Toll Free: 800.527.4011

Tel: 972.494.6151

Fax: 972.494.1881

Email: sales@garrett.com

PN 1526000.C.0608

Garrett Metal Detectors

Garrett Metal Detectors Graphic Target Profiling 1350 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual