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Soil condition analysis is important in the process of metal search, because perfectly clean soils do not exist and any element or characteristic has an impact on the quality of signals from the search coil. The content of mineral salts increase the electrical conductivity of the soil, magnetically saturated soils create interference with scanning, the presence of stones and iron in the soil create false signals. In addition, signals in wet and dry soil differ from each other, changing the sensitivity of the metal detector even on the same site. All this reduces the effectiveness of the search in case no measures are taken to combat soil mineralization.

4 options for setting up the ground depending on the level of the metal detector



Even low-cost entry-level metal detector models, such as the Garrett Ace 250, have a built-in Ground Balance ground setting feature that is activated when turned on. In such detectors, the user does not have the ability to regulate this parameter, he can only trust his device and accept the average value of mineralization. This is very convenient for beginners in metal search, as you do not need to delve into the settings and just turn on the device and start scanning. However, this is not enough over time and additional adjustments are needed to increase search efficiency, including the need to adjust the balance of the ground.
Options for balancing the ground of metal detectors
Semi-professional metal detectors are equipped mainly with automatic adjustment of the automatic ground balance, which must be adjusted before conducting search operations. First, you need to find a clean area and make sure that there are no iron objects, which is necessary to eliminate the errors of the setting. Once the detector is turned on, you need to press the ground balance button and start the customization process, and then smoothly bring the search coil to the ground at a distance of 5 centimeters and take it back about 30 cm. Thus, the metal detector begins to understand the difference between zero and real value of mineralization, at the end of the process the device should give a beep about the success of the setting.
Options for balancing the ground of metal detectors
Manual adjustment of the manual balance of the manual Ground Balance is possessed by professional metal detectors, which have the ability to fine-tune soil mineralization indicators. Most often, this method adjusts the values obtained by automatic ground adjustment. This option is designed to set the most accurate value of the ground balance and achieve the maximum depth of detection. Manual tuning is used to establish maximum sensitivity when searching on small areas. This method is also suitable for soils with a high content of small metal debris. In practice, the setting is done by lifting and lowering the search coil and simultaneously rotating the ground balance regulator until the beep disappears.
Options for balancing the ground of metal detectors
Some metal detector models have an advanced version of the ground balance setting , Automatic Tracking Ground Balance, which tracks the soil's condition in real time right during scanning. This function is supplied with expensive professional devices that independently determine the condition of the soil and the user does not even notice these changes. One of these devices is the Minelab X-Terra 705, which is equipped with three ground-setting modes, including tracking mode. The tracking automatic ground balance setting provides maximum sensitivity to the detector throughout the detection depth, excluding target omissions and false positives.
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