Garrett Metal Detectors   United States
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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 detemine 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

Treasure found with a Garrett Metal Detector Treasure found with a Garrett Metal Detector Treasure found with a Garrett Metal Detector