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Coils

Detector search coils come in a wide variety of sizes and shapes. Generally, the coil shape is either circular or elliptical. A circular coil has slightly more detection depth and sensitivity and non-mineralized soil. Elliptical coils are widely used because their elongated length provides greater coverage area and elliptical coils are generally more maneuverable in tight spaces. Search coils range in size from only a few inches in diameter the more than a foot in diameter.

The magnetic field generated from the coil as size and depth that correlates to the shape and size of the coil. The bigger the coil the larger the magnetic field. Larger coils therefore generally detect wider and deeper than smaller search coils. This means covering a large search field will take pure sweets with a large coil in a small coil. But because of this large scan area, large search coils can be challenging and trashy areas were multiple targets will be encountered at once. Because of their diffuse magnetic field, large coils will be less sensitive over tiny targets. Small search coils have concentrated magnetic fields making them ideal to use when searching for tiny targets such as gold nuggets. 


You will cover less ground with each sweep of a small coil but the smaller magnetic field makes small coils ideal for use in hunt areas where you'll encounter a lot of metallic debris. The small coil will help you locate good targets around trash they're lighter in weight and they are easier to maneuver in tight search spaces. In addition to search coil sizes and shapes, there are a variety of search coil configurations available.

The configuration refers to the arrangement of the transmitter TX and receiver or RX coil windings within the search coil shell. Five of the more common search quote configurations are Concentric, Double D, Mono, Imaging and 2 box. Concentric will consist of a TX coil and RX coil usually with a smaller RX coil located inside of a larger TX coil. With larger coil windings the concentric oil offers the largest possible detection field and greatest detection depth.

The concentric coil has a very symmetrical detection field allowing easy in pinpointing and consistency in target identification. This uniform field also provides a better ability to discriminate iron targets like bottle caps and nails. Double D configuration coils have both TX and RX coil windings in the shape of a d. With the positive detection field running beneath the overlapping center section from front to back.

The remaining portion of the coil actually produces negative or canceling detection fields making a DD coil more stable over the heavily mineralized ground. Many users find that a DD coil with his narrow detection field offers advantages and separating adjacent targets in a target-rich hot side. The concentric coil offers deeper detection depth and non-mineralized soil but notices that the DD coils performance becomes Superior as the level of ground mineralization increases.

Detech Ultimate 13″ Search Coil for Nokta Makro Simplex  with Coil Cover Included
New Hot
Brand: DETECH Model: D13Simplex
TECHNOLOGY AND SPECIFICATIONS: Configuration: Ultimate, Size: 13", Weight approx. The coil and the cover weigh 580 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round. Coil cover is included.COMPATIBLE WITH: This Detech Search Coil is compatible with the Nokta-Makro Simplex+ metal detectors...
£195.94 Ex Tax:£195.94
DETECH 10" DD Search Coil For EDS GOLD CATCHER 28 kHz
New
Brand: DETECH Model: D00157
TECHNOLOGY AND SPECIFICATIONS: Size: 10", Weight approx. 400 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round (Closed Design). Coil cover is included. COMPATIBLE WITH: This Detech Search Coil is compatible with EDS GOLD CATCHER 28 kHz metal..
£101.65 Ex Tax:£101.65
DETECH 13" Ultimate Search Coil For Minelab Explorer, E-Trac, Quattro and Safari Metal Detector
Hot
Brand: DETECH Model: D00001
DETECH 13" Ultimate DD Search Coil For Minelab Explorer, E-Trac, Quattro & Safari Metal Detectors With Coil Cover Protector IncludedTECHNOLOGY AND SPECIFICATIONS: Configuration: Ultimate, Size: 13", Weight approx. 480 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round. Coil co..
£147.86 Ex Tax:£147.86
DETECH 18" (45.72cm) Discriminating Coils For SSP5100 Metal Detector With Free S-shape Handle
New
Brand: DETECH Model: D00153 - 18 discriminating round
Configuration: Round Discriminating PI Coil 18" For SSP 5100 pulse Ribbed Housing, Specially Designed for Absorbing the Mechanical Shocks and Vibrations, Made of Special Polymer, Strengthened with Glass Fibers, Injection Molded with a Very..
£266.23 Ex Tax:£266.23
DETECH 18" Concentric Search Coil for Minelab GPX, GP, SD Series Gold Metal Detectors
New
Brand: DETECH Model: D00164
TECHNOLOGY AND SPECIFICATIONS: Size: 18", Weight approx. 950 g. Search Coil Type‎: Concentric Open Search Coil; Coil shape: Round. Coil cover is included. COMPATIBLE WITH: This Detech Search Coil is compatible with..
£272.59 Ex Tax:£272.59
DETECH 18" Non Discriminating Coils For SSP5100 Metal Detector
New
Brand: DETECH Model: D00153 - 18 non-discriminating
Configuration: Round Non-Discriminating PI Coil Size: 18” non-discriminating For SSP 5100 pulse Ribbed Housing, Specially Designed for Absorbing the Mechanical Shocks and Vibrations, Made of Spe..
£166.19 Ex Tax:£166.19
Brand: DETECH Model: D00070
 TECHNOLOGY AND SPECIFICATIONS: Configuration: S.E.F (Symmetrical Electromagnetic Field) – Butterfly, Size: 21x17", Weight approx. 907 g. Search Coil Type‎: DD /‎Double D; Coil shape: Ellipse. Coil cover is included.COMPATIBLE WITH: This Detech Search Coil is c..
£221.58 Ex Tax:£221.58
DETECH 6" DD Search Coil For EDS GOLD CATCHER 28 kHz
New
Brand: DETECH Model: D00156
TECHNOLOGY AND SPECIFICATIONS: Size: 6x6", Weight approx. 400 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round (Closed Design). Coil cover is included. COMPATIBLE WITH: This Detech Search Coil is compatible with EDS GOLD CATCHER 28 kHz meta..
£72.61 Ex Tax:£72.61
DETECH 7" Search Coil Chaser Metal Detector
New
Brand: DETECH Model: D00162
TECHNOLOGY AND SPECIFICATIONS: Configuration: Ultimate, Size: 7", Weight approx. 450 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round. Coil cover is included. COMPATIBLE WITH: This Detech Search Coil is compatible with the Detech Chaser met..
£104.88 Ex Tax:£104.88
DETECH 9" Search Coil Chaser Metal Detector
New
Brand: DETECH Model: D00163
TECHNOLOGY AND SPECIFICATIONS: Configuration: Ultimate, Size: 9", Weight approx. 450 g. Search Coil Type‎: DD /‎Double D; Coil shape: Round. Coil cover is included. COMPATIBLE WITH: This Detech Search Coil is compatible with the Detech Chaser met..
£109.72 Ex Tax:£109.72
DETECH Pulse Search Coil 1.5m x 1.5m Discriminating For SSP 5100 pulse induction metal detector
New
Brand: DETECH Model: D00153 - 1,5x1,5 discriminating
Configuration: Square Discriminating PI Coil Size: 1,5m x 1,5m discriminating coil For SSP 5100 pulse Ribbed Housing, Specially Designed for Absorbing the Mechanical Shocks and Vibrations, Made of Special Polymer, Strengthen..
£298.50 Ex Tax:£298.50
DETECH Pulse Search Coil 1.5m x 1.5m Non-Discriminating For SSP 5100 pulse induction metal detector
New
Brand: DETECH Model: D00153-1.5m x1.5m non-discriminating
Configuration: Square Non-Discriminating PI Coil Size: 1.5m x 1.5m For SSP 5100 Ribbed Housing, Specially Designed for Absorbing the Mechanical Shocks and Vibrations, Made of Special Polymer, Strengthened with Glass Fibers..
£258.16 Ex Tax:£258.16
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