Garrett Metal Detectors Language:
Discover What's Hidden Below

DETECTOR DEFINITIONS

Metal detection industry terms explained

TERM   EXPLANATION

All-Metal Mode
 

A metal detector setting that detects all metal objects, no discrimination

     
Audio Threshold
 

The background audio level produced when no target is being detected — it is best to adjust the audio threshold to the lowest audible level, and recommended the operator use headphones when treasure hunting.

     
Audio Tone
 

The pitch or frequency of the sound made by a detector. The tone on the GTI 2500, 1500 and GTP 1350 detectors can be adjusted on a treble to bass scale.

     
Cache
 

Larger deposits of treasure that generally consist of money and valuable objects

 
Classifier
 

A filtering device, typically found at the head of a sluice, which helps prevent rocks and other large debris from falling into a gold pan.

 
Coin Shooting
 

Hunting for coins regardless of location or era of coins targeted

 
Composite Digger
 

Trowel made of durable plastic that helps prevent coin damage during recovery. Ideal for soft terrain

 
Control Box
 

Contains the detector’s main circuitry, controls, speaker, batteries and microprocessor chip

 
DD Searchcoil
 

A special configuration of the transmit and receive coils to minimize the effects of ground minerals

 
DSP
 

(Digital Signal A highly advanced computer chip used in Garrett detectors and other sophisticated Processor) electronic equipment

 
Discrimination
 

The ability of a metal detector to reject a target, such as a pull tab and foil or accept a target such as a coin or jewelry based on its metallic composition

 
FastTrack
 

See Garrett’s exclusive technology that analyzes ground mineralization and adjusts to "cancel" Ground Balance) its effects in a matter of seconds

 
Frequency
 

The number of times per second the energy transmitted from a detector’s coil changes direction (e.g. 7.0 kHz = 7000 times per second) — higher frequencies are typically used to find targets such as gold nuggets, while lower frequencies are best for general purpose hunting.

 
Gold Pan
 

A bowl-shaped, shallow container that traps gold flakes

 
Gravity Trap™
 

A patented gold pan made by Garrett which has 90 degree riffles to trap small gold

 
Ground Balance
 

An adjustment made to "cancel" or ignore ground mineralization; may be done manually (See GroundTracking) or automatically

 
Ground Tracking
 

The ability of a metal detector to continuously measure the ground’s mineralization and automatically adjust the detector’s ground balance setting for optimum performance

 
GTA
 

(Graphic Target Analyzer) Exclusive Garrett technology that visually identifies a target’s conductivity or ID and also shows the discrimination pattern

 
GTI
 

(Graphic Target Imaging) Exclusive Garrett technology that measures and displays a target’s true size and depth

 
LCD
 

(Liquid Crystal Display) A graphical display that indicates target information, detector settings, etc…

 
Multiple Frequency
 

See Pulse Induction and Multiple Frequency article

 
Microprocessor
 

Computer chip that performs digital functions that make many features such as Target ID and Discrimination possible on today’s Garrett detectors

 
Mono Searchcoil
 

Refers to searchcoils with one ring where both transmitter and receiver antennae are located

 
Motion Mode
 

Refers to the setting where coil motion is needed to detect targets

 
Notch

 

Discrimination Targets above and below these discrimination settings

 
Pinpoint
 

A mode of operation that allows the operator to determine the precise location of a target still in the ground

 
Pulse Induction
 

Used primarily for heavily mineralized environments such as the beach or the gold fields of Australia and is found in many of today’s specialty detectors (See also Multiple Frequency)

 
PowerMaster
 

Exclusive Garrett feature that increases the detector’s ability to detect deeper and wider — up to 20 percent

 
Probe
 

A long screwdriver-like device usually made of brass used to penetrate the ground and physically locate a detected target before digging it up

 
Prospecting
 

Hunting for valuable metals such as gold

     
Relic Hunting
 

Hunting for targets with historical value, such as old battlefield items or family heirlooms

 
Salt Elimination
 

A detector’s ability to eliminate the interference of salt mineralization, which adversely affects detection depth and target ID capabilities

 
ScanTrack
 

A unique Garrett feature that automatically adjusts to the operator’s scan speed to achieve optimum performance

 
Searchcoil
 

Also referred to as the "coil", the searchcoil is the flat, typically circular disk swept over the ground to sense the presence of metal

 
Sensitivity
 

Generally synonymous with Depth, the adjustment that determines how deep or small a target can be detected ” the higher the sensitivity, the greater the detection depth

 
Shaft
 

The adjustable stem that connects the control box and the searchcoil

 
Single Frequency
 

Offers greater potential depth capabilities, better discrimination and enhanced target ID under most common soil conditions where most treasure hunting occurs (See Multiple Frequency article for more information).

 
Super Sluice™
 

Large 15" gold pan with 1/2"deep riffles. Traps small gold nuggets up to one ounce and larger in size

 
Surface Elimination
 

A detectors ability to ignore all targets located on or near the ground’s surface, which is useful in heavy trash areas

 
Surface Mount PC Board Technology
 

The latest trend in constructing electronic circuit boards

 
Target
 

Any metallic item sensed by a detector

 
Target ID Cursor

 

A graphical indication of the target’s probable identity (e.g. coin, gold, pull tab) based on its electrical properties

 
Volume Control

 

The ability to adjust the loudness of the audible response produced by the detection of a target