Minelab’s patented Dual Voltage technology (DVT) is implemented in the GPX series of metal detectors. DVT transmits two different voltage levels from the search coil. This has the advantage of increased sensitivity to small targets and large deep targets.
Multi period sensing is Minelab’s patented pulse induction technology first released in Minelab’s SD2000 detector in 1995. Standard pulse induction metal detectors are limited due to their single pulse width. MPS uses varying pulse widths that extract more information from targets, achieve better ground balance, remove ground noise and detect to greater depths.
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SETA is an acronym for Smart Electronic Timing Alignment. SETA technology enables a detector with multiple timings to individually and automatically align each channel in a way that is not possible with manual adjustments. This results in reduced noise and interference, improving sensitivity, ground balancing and detection depth across all timings.
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Monoloop coils are a special style of coil for MPS technology detectors (SD & GPX Series). These coils have one winding of wire around the circumference of the coil, which is used to both transmit and receive. The signal pattern of the Monoloop coil is cone shaped, requiring more overlapping. In extremely heavily mineralised grounds they can be more difficult to ground balance, however they tend to provide slightly better depth than the Double-D coils. With the use of the "Specialised Timings" in the GPX series of detectors they can give real performance gains in difficult ground types.
A Double-D coil has two overlapping wire windings in the shape of two D’s (one reversed). The characteristics of a Double-D coil are stability (especially in heavily mineralsied ground), good depth and sensitivity, and a very thorough search pattern. In Double-D setting the left side winding transmits and the right side winding is the receive. The target signal is generated for the overlap area of the windings so the coil "sees" less of the ground and therefore runs more quietly. In mono setting the left side winding transmits and the receive signal is gathered from both windings giving slightly more ground feedback.
A Concentric coil has an inner circle and an outer circle wire winding. Its search pattern is cone shaped and can be useful for accurately pinpointing the target. Concentric coils tend to be noisier in highly mineralised ground and require more overlap of sweep for thorough ground coverage. These coils are normally used on Minelabs coin and relic detectors.
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FBS is Minelab’s patented multiple frequency metal detection technology. FBS transmits a broad range of 28 frequencies from 1.5 kHz to 100 kHz. This has the benefit of superior depth, sensitivityto small targets and accurate discrimination. FBS technology can be found in Minelab’s E-TRAC, Explorer SE Pro and Safari metal detectors.
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VFLEX is Minelab’s metal detecting technology used in the X-TERRA range of detectors. VFLEX uses state of the art digital electronics to enhance standard singl frequency detection technology. This has the advantage of providing dependable performance and improved immunity to outside interference. VFLEX technology also has an added advantage that changing the detector’s coil also automatically changes the detector’s operating frequency. This means that an X-TERRA detector can operate at different frequencies allowing the detector to be easily modified to suit different detecting conditions.
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