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LONG RANGE LOCATOR TFR-4 ELECTRONIC ROD-Long Distance Test Demonstration Part 1
LONG RANGE LOCATOR TFR-4 ELECTRONIC ROD-Long Distance Test Demonstration Part 1
Published: 2015/10/26
Channel: Treasure Finder
Homemade Long Range Locator
Homemade Long Range Locator
Published: 2016/09/22
Channel: Imex Trade Co.
POSEIDON LONG RANGE LOCATOR FOR GOLD - SILVER AND MORE
POSEIDON LONG RANGE LOCATOR FOR GOLD - SILVER AND MORE
Published: 2016/06/20
Channel: KONSTANTINOS POSEIDON LRL
long range locator 2015
long range locator 2015
Published: 2015/07/14
Channel: daves3020
POSEIDON LONG RANGE LOCATOR TEST
POSEIDON LONG RANGE LOCATOR TEST
Published: 2017/01/14
Channel: KONSTANTINOS POSEIDON LRL
LONG RANGE LOCATORS KIT
LONG RANGE LOCATORS KIT
Published: 2015/01/23
Channel: Gold Detectors
The Best Between Long Range Gold Locator ( Spark ) New 2017
The Best Between Long Range Gold Locator ( Spark ) New 2017
Published: 2017/01/07
Channel: MWF DETECTORS
Long Range Locator - Metālu lokātors
Long Range Locator - Metālu lokātors
Published: 2016/10/12
Channel: Maris Slanars
Long range gold finder - Gold Hunter Device
Long range gold finder - Gold Hunter Device
Published: 2016/07/30
Channel: UNITED INTERNATIONAL GROUP
FRESH RESULT (1 SYSTEM)   LONG RANGE WATER LOCATOR
FRESH RESULT (1 SYSTEM) LONG RANGE WATER LOCATOR
Published: 2015/12/24
Channel: Ger Detect
long range water locator - fresh result device
long range water locator - fresh result device
Published: 2015/12/26
Channel: UiG Detectors Company
Long Range Gold Locator DLR 1
Long Range Gold Locator DLR 1
Published: 2014/10/14
Channel: Louis Consatantinou
Long Range Locator TFR-1 Rod : Understanding the "Target Discriminator" Accessory
Long Range Locator TFR-1 Rod : Understanding the "Target Discriminator" Accessory
Published: 2016/03/11
Channel: Treasure Finder
LONG RANGE TFR-2 AMAZING METAL DETECTOR - Intro and Demo Test PART 2
LONG RANGE TFR-2 AMAZING METAL DETECTOR - Intro and Demo Test PART 2
Published: 2016/05/15
Channel: Treasure Finder
Long Range Locator TFR-1 Amplification Booster Demo Part -1
Long Range Locator TFR-1 Amplification Booster Demo Part -1
Published: 2016/11/28
Channel: Treasure Finder
Long range gold locator
Long range gold locator
Published: 2015/05/19
Channel: Carmel Halloun
Metal Detecting &  Found Silver with my TFR-4 long-range Locator!!
Metal Detecting & Found Silver with my TFR-4 long-range Locator!!
Published: 2017/05/21
Channel: Temple Raider
Long-range Locator Review video Episode 1
Long-range Locator Review video Episode 1
Published: 2017/06/03
Channel: Temple Raider
DRS X1 PRO: 3d underground scanner and long range locator
DRS X1 PRO: 3d underground scanner and long range locator
Published: 2016/03/14
Channel: DRS ELECTRONICS
AKS Long Range Detector Testing
AKS Long Range Detector Testing
Published: 2016/08/01
Channel: HN WorldWide Traders
Long Range Locator II Crypton OBMD-2 Meddle East Distributor
Long Range Locator II Crypton OBMD-2 Meddle East Distributor
Published: 2014/05/13
Channel: Louis Constantinou
AKS Long Range God/Diamond 3D Detector
AKS Long Range God/Diamond 3D Detector
Published: 2015/09/16
Channel: Sampath Guruge
Mega Scan Pro - Usage Instructions + Long Range Locator Operating Practices - Part 3
Mega Scan Pro - Usage Instructions + Long Range Locator Operating Practices - Part 3
Published: 2016/08/03
Channel: Mega Locators
Long Range Locator TFR 4 promotional trailer
Long Range Locator TFR 4 promotional trailer
Published: 2016/03/08
Channel: Treasure Finder
AKS Long Range Only Gold Diamond Metal Detector LRL
AKS Long Range Only Gold Diamond Metal Detector LRL
Published: 2017/03/05
Channel: robbie italia
LONG RANGE LOCATOR TFR-2 Intro and Long Distance Demo Test
LONG RANGE LOCATOR TFR-2 Intro and Long Distance Demo Test
Published: 2016/04/11
Channel: Treasure Finder
LDD world best Long distance Gold Detector x400
LDD world best Long distance Gold Detector x400
Published: 2016/10/10
Channel: Molo Zakos
long range locator luna
long range locator luna
Published: 2017/01/21
Channel: Louis Consatantinou
Long Range Locator Crypton 3
Long Range Locator Crypton 3
Published: 2015/07/24
Channel: Louis Consatantinou
Long range gold and treasure Locator Gold Hunter Plus Device  2017
Long range gold and treasure Locator Gold Hunter Plus Device 2017
Published: 2017/06/21
Channel: German Ger Detect
long range loactor gold and silver 2015
long range loactor gold and silver 2015
Published: 2015/10/22
Channel: daves3020
Mega Scan pro 2017 | Best Gold detector | User Video
Mega Scan pro 2017 | Best Gold detector | User Video
Published: 2017/03/13
Channel: Orient Tec - Gold And Metals Detectors
Metal Detecting Useing The Model 20 Electroscope ( Buffalo / Indian Head Nickel Found )
Metal Detecting Useing The Model 20 Electroscope ( Buffalo / Indian Head Nickel Found )
Published: 2014/01/18
Channel: mopedking77
Metaldetector Golden cion pulse induktion 2 in 1 Longrange locator
Metaldetector Golden cion pulse induktion 2 in 1 Longrange locator
Published: 2013/11/19
Channel: ROKI5694
Long range gold locator
Long range gold locator
Published: 2017/03/06
Channel: Masterrolim Master
Long Range Locator TK-1
Long Range Locator TK-1
Published: 2016/09/19
Channel: Τάκης Απόγονος
Long-range Locator Review video Episode 2
Long-range Locator Review video Episode 2
Published: 2017/06/03
Channel: Temple Raider
LONG RANGE DETECTOR TFR-4 "Learning the walk by method" Part 2
LONG RANGE DETECTOR TFR-4 "Learning the walk by method" Part 2
Published: 2016/03/16
Channel: Treasure Finder
COMPASS LONG RANGE GOLD 24
COMPASS LONG RANGE GOLD 24
Published: 2016/07/09
Channel: SofiaDetectors
Long range water locator - FRESH RESULT Device (1 SYSTEM )
Long range water locator - FRESH RESULT Device (1 SYSTEM )
Published: 2016/04/11
Channel: UNITED INTERNATIONAL GROUP
OMNISKOP-4000 Дистанционен металдетектор за злато Long range locator
OMNISKOP-4000 Дистанционен металдетектор за злато Long range locator
Published: 2014/01/21
Channel: ROKI5694
Compass Long Range Locator 192a - ΤΙΜΗ 750 € Ελαφρός μεταχειρισμένος
Compass Long Range Locator 192a - ΤΙΜΗ 750 € Ελαφρός μεταχειρισμένος
Published: 2013/10/09
Channel: ΑΝΤΩΝΗΣ ΒΛΑΧΟΣ
MEGA GOLD 2017 | Gold, Gold Nuggets, Silver and Diamond Detector
MEGA GOLD 2017 | Gold, Gold Nuggets, Silver and Diamond Detector
Published: 2017/03/22
Channel: Orient Tec - Gold And Metals Detectors
Mega Gold | Usage Instructions + Long Range Locator Operating Practices - Part 4
Mega Gold | Usage Instructions + Long Range Locator Operating Practices - Part 4
Published: 2016/11/21
Channel: Orient Detectors
Locator Gold - Get Paid to Bring Houses
Locator Gold - Get Paid to Bring Houses
Published: 2015/05/13
Channel: Tamera Aragon
LRL500 long range locator
LRL500 long range locator
Published: 2013/08/19
Channel: lrlman1
Operation of long range metal detector 2
Operation of long range metal detector 2
Published: 2016/08/16
Channel: Chards shi
Mega Gold - Long Range Locator - part 6
Mega Gold - Long Range Locator - part 6
Published: 2016/10/20
Channel: جهاز كشف الذهب والمعادن
Long Range Locator II Crypton OBMD-2 Meddle East Distributor
Long Range Locator II Crypton OBMD-2 Meddle East Distributor
Published: 2014/05/17
Channel: Louis Constantinou
Long Range Gold Detector
Long Range Gold Detector
Published: 2016/10/14
Channel: BR DETECTORS METAL DETECTORS
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WIKIPEDIA ARTICLE

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A long-range locator is a class of fraudulent devices purported to be a type of metal detector, supposedly able to detect a variety of substances, including gold, drugs and explosives; most are said to operate on a principle of resonance with the material being detected.

Theory of operation[edit]

Skeptics have examined the internals of many such devices and found those that have been examined to be incapable of operating as advertised, and have dismissed them as overpriced dowsing rods or similarly useless devices. Virtually all such devices claim to operate on a resonant frequency principle where the device is said to emit an electromagnetic signal, either through an antenna or a probe, that will respond to a specific substance such as gold, silver, or sometimes even paper money, and that the device will indicate the presence of such material by indicating a change in direction relative to the operator.

This theory of operation is not supported by scientific theory; the devices have not been shown to work in blind testing, and the resonance principle invoked has not been shown to work in laboratories (and is not consistently employed by LRL manufacturers). In addition, the Inverse-Square Law limits the effective possible signal strength of any putative LRL; moreover, not only does this attenuation apply to the supposed emissions from the LRL devices, but the return signals from the sought-after targets are further attenuated by the same constraints. Since most of these LRL devices are powered by low voltage, low current AA, AAA or 9v cells, the resultant power available for emissions is quite minuscule at best, and the return signal would suffer even greater attenuation. Examples exist of LRL devices having no internal power source at all, and these are advertised as being self-powered or powered by ambient static electricity; these are indistinguishable from dowsing rods.

Scientific evaluation[edit]

Many such devices contain non-functional circuitry or naively constructed approximations of radio transmitters. A few do have functional circuitry, putting out a weak signal with a function generator or a simple timer circuit, but are still largely useless in comparison with a coil-based metal detector; others have been found to contain intentionally obfuscated or completely superfluous components (from individual components such as inductors or ribbon cables up to, in some cases, pocket calculators), often indicative of intentional fraud, incompetence, or both, by the designer. Such functioning circuitry as exists in such devices usually has no obvious way (motor, solenoid, etc.) to connect to any rotating joint in the device either, meaning the devices are often entirely dependent on the ideomotor effect to function.

Media exposure and controversy[edit]

Author Tom Clancy came under fire for including the DKL Lifeguard,[1] a long-range locator purported to be useful for detecting people, in critical passages of his novel Rainbow Six. A study by Sandia National Laboratories proved the Lifeguard to be completely useless,[2] and other designs by the Lifeguard's creator Thomas Afilani have been shown to contain numerous dummy components with no clear function.

Accusing the manufacturers of fraud, the UK banned export of the GT 200, used by the government of Thailand, and the ADE 651, used by the government of Iraq, in January 2010.

See also[edit]

References[edit]

  1. ^ skepdic.com: DKL Lifeguard
  2. ^ Murray, Dale W.; Spencer, Floyd W.; Spencer, Debra D. (April 29, 1998), Double-Blind Evaluation of the DKL LifeGuard Model 2 (PDF), Sandia National Laboratories 

External links[edit]

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