Suggestions for Optimizing Your Detection Experience
A word about the height of the detector coil:
Detecting around oxidized iron objects (large rusty iron objects)
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A good distance to maintain on even ground is about 10 cm (4 in), trying not to vary too much up or down. On uneven or rough ground the coil can be operated over rocks and rubble at about 6 inches. The important thing to remember is to maintain the height from the ground that you used to tune the detector. Another fantastic technological breakthrough from our Deepers engineers, found on our current Deepers' Detectors is the AT (auto tune function) which allows the detectorist to vary the detector coil height depending on changing ground conditions without having to retune the detector. The detector automatically senses the change in coil height and ground conditions and auto tunes the detector to the original setting in an instant.
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Maintaining proper height of the coil from the ground is very important. Using a VLF detector with the coil too close to the ground will produce erratic and unstable operation signaled by excessive false signals and audio tones where there is no target. This worsens if the ground is exceptionally mineralized or humid. When using a Pulse Induction detector it is important to tune the coil while holding it approximately 10 cm (4 in) from the ground and maintain that height throughout the hunt. This is easily and quickly learned with a little practice and maximizes the depth and minimizes false signals.
Quite often during detecting or prospecting, we find an area that causes erratic and intense responses from the detector and indicates a very large metallic object under the coil. When using a VLF detector, it is almost impossible to discriminate this out and you are obligated to excavate in order to see the target that produced the response. In many of these cases we find the presence of oxidized iron, a rusty old container, a chain, a roll of wire, or a piece of oxidized scrap metal. Why does this phenomenon occur? The answer is simple; the oxidation spreads out from the target and creates a halo in the ground that makes the target seem far bigger than it really is to the detector. This confuses the detector and as a result, the detector does not discriminate the iron.
When using a Deepers metal detector, its advanced circuitry allows to fully analyze the signal of the metal and its oxidization. Therefore, it helps to either, easily pinpoint the target for recovery or, if desired, completely rejected using the adjustable REJET function, to ignore iron in the first 30 to 50 cm (12 to 20 in) of the surface. When passing the search coil over iron in the set REJET zone, the red REJET LED will illuminate signaling to you that the target can be safely passed. Remember that Deepers’ detectors can locate a target at a depth of up to 1.2 m (4 ft) with just the standard round search coil and more than 3.6 m (12 ft) depth with the Frame coil.
How to conveniently adjust the sensitivity of your detector (SENSI knob)
Sensitivity is the basic detector adjustment that must be understood and taken into account by the treasure hunter. Some detectors do not have this capability and the ones that do are very misunderstood and misused by the user. Most people confuse increased sensitivity with increased depth. They fail to understand that depending upon ground conditions a reduction in sensitivity will allow the signal to go deeper into the ground; a higher sensitivity causes the signal to reflect back much like using high-beam headlights in a fog, lower the intensity of the beam to low-beam and your light penetrates deeper into the fog. The same concept applies to metal detector sensitivity as it applies to highly mineralized ground.
Sensitivity is the basic detector adjustment that must be understood and taken into account by the treasure hunter. Some detectors do not have this capability and the ones that do are very misunderstood and misused by the user. Most people confuse increased sensitivity with increased depth. They fail to understand that depending upon ground conditions a reduction in sensitivity will allow the signal to go deeper into the ground; a higher sensitivity causes the signal to reflect back much like using high-beam headlights in a fog, lower the intensity of the beam to low-beam and your light penetrates deeper into the fog. The same concept applies to metal detector sensitivity as it applies to highly mineralized ground.
Deepers MF
On the Deepers’ detectors, we find the SENSI knob (for sensitivity). With the knob set on the RED DOT (at 11 o'clock position) the detector is at maximum sensitivity. Turning the knob counter clockwise reduces the sensitivity and the further we turn the less the sensitivity. When detecting over neutral or non-mineralized ground we can use the detector at maximum sensitivity (SENSI knob on RED DOT). If we notice erratic or unstable operation in the case of mineralized ground, then simply turn the SENSI knob to the left or counter clockwise until the operation stabilizes. Slight mineralization can be stabilized normally at the 9 o'clock position (SENSI knob at 9 o'clock). If the terrain is very reactive (highly mineralized) we should turn the SENSI knob closer to 6 or 7 o'clock position. (SENSI knob adjusted to 6 or 7 o'clock position) Adjusted this way your Deepers is able to transmit the signal at maximum depth and detect the deepest of targets. You can see how reducing the sensitivity based on ground conditions can actually improve detection depth.
On the Deepers’ detectors, we find the SENSI knob (for sensitivity). With the knob set on the RED DOT (at 11 o'clock position) the detector is at maximum sensitivity. Turning the knob counter clockwise reduces the sensitivity and the further we turn the less the sensitivity. When detecting over neutral or non-mineralized ground we can use the detector at maximum sensitivity (SENSI knob on RED DOT). If we notice erratic or unstable operation in the case of mineralized ground, then simply turn the SENSI knob to the left or counter clockwise until the operation stabilizes. Slight mineralization can be stabilized normally at the 9 o'clock position (SENSI knob at 9 o'clock). If the terrain is very reactive (highly mineralized) we should turn the SENSI knob closer to 6 or 7 o'clock position. (SENSI knob adjusted to 6 or 7 o'clock position) Adjusted this way your Deepers is able to transmit the signal at maximum depth and detect the deepest of targets. You can see how reducing the sensitivity based on ground conditions can actually improve detection depth.
Deepers X5
The level of sensitivity selected influences the detection at greater depths. According to the level of mineralization of the ground, adjust the SENSI knob in such a way that the detector is not disturbed by false signals. If the ground is not mineralized or polluted, the sensitivity can be set above the RED POINT (hypersensitive mode). Universally, it is preferable to position SENSI knob on the RED POINT. Lowering the sensitivity will increase stability in detection. At the RED POINT and higher, the detector works in hypersensitive mode, which increases the penetration power of the search coil, but might cause instability in case the prospected ground is mineralized or polluted.
Positioning the SENSI knob in the range outlined in the picture (between 3 and 7 o’clock), allows avoiding the detection of small trash such as nails, pull tabs, bottle caps and other scrap metals without losing the opportunity to locate important targets even if they are deep. It is important to note that lowering sensitivity decreases the soil penetration power of the detector.
The level of sensitivity selected influences the detection at greater depths. According to the level of mineralization of the ground, adjust the SENSI knob in such a way that the detector is not disturbed by false signals. If the ground is not mineralized or polluted, the sensitivity can be set above the RED POINT (hypersensitive mode). Universally, it is preferable to position SENSI knob on the RED POINT. Lowering the sensitivity will increase stability in detection. At the RED POINT and higher, the detector works in hypersensitive mode, which increases the penetration power of the search coil, but might cause instability in case the prospected ground is mineralized or polluted.
Positioning the SENSI knob in the range outlined in the picture (between 3 and 7 o’clock), allows avoiding the detection of small trash such as nails, pull tabs, bottle caps and other scrap metals without losing the opportunity to locate important targets even if they are deep. It is important to note that lowering sensitivity decreases the soil penetration power of the detector.
What to do in the presence of mineralized ground? We have the solution!
In order to meet the needs of our clients that prospect or treasure hunt in highly mineralized ground, we have incorporated into our Deepers’ detectors a system that permits the usage of the PLANAR DD Litz winding coils, the most advanced and capable in detecting technology. These coils act like a filter that cleans up interference from mineralized ground or ferrous (iron) objects. This allows smooth and stable operation of the detector and extreme depth capabilities on gold and silver.
We conducted a test using a small leather bag with a mixture of 15 gold, silver, and bronze coins buried in the highly mineralized soil of our test bed; our Planar DD Litz coil easily detected the bag at a depth of 70 cm (28 inches). Try that with your high-end expensive VLF detector!
In order to meet the needs of our clients that prospect or treasure hunt in highly mineralized ground, we have incorporated into our Deepers’ detectors a system that permits the usage of the PLANAR DD Litz winding coils, the most advanced and capable in detecting technology. These coils act like a filter that cleans up interference from mineralized ground or ferrous (iron) objects. This allows smooth and stable operation of the detector and extreme depth capabilities on gold and silver.
We conducted a test using a small leather bag with a mixture of 15 gold, silver, and bronze coins buried in the highly mineralized soil of our test bed; our Planar DD Litz coil easily detected the bag at a depth of 70 cm (28 inches). Try that with your high-end expensive VLF detector!
The standard target for testing a Pulse detector is 14 gram (0.5 oz) of non-ferrous metal. The Deepers detectors discover it with great ease at a depth of 70 cm (28 in) with the MONO PLANAR coil in normal ground conditions; in mineralized terrain it will detect the target from 45 to 50 cm (18 to 20 in). With the PLANAR DD Litz coil you can detect the same target at a depth of 55 to 60 cm (22 to 24 in) in the highly mineralized ground, an improvement of 20%. This performance is unparalleled by other PI detectors on the market and we will not even consider the VLF detectors that can only detect the same target at a depth of 18 cm (7 in) in a difficult environment.
Again, we want to remind you of the technological breakthrough of our discrimination - REJET capabilities that allow for elimination of iron objects up to the first 50 cm (20 in) of the detection depth and let us not forget our Auto Tune system that automatically maintains your settings over changing ground conditions, which in turn provides substantial stability during detection.
