Features in a metal detector you should look for to maximize gold detection:
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Frequency: Gold detectors typically operate at higher frequencies (e.g., 18 kHz to 71 kHz) because gold has a relatively low conductivity and is often found in mineralized soils. Higher frequencies help in detecting smaller gold nuggets and flakes.
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Adjustable Ground Balance: Gold is often found in mineralized ground, which can create interference and make detection difficult. Look for a metal detector with adjustable ground balance settings to help filter out mineralization noise and improve target detection.
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Iron Discrimination: Since gold detectors are used in areas with a lot of iron debris, having the ability to discriminate against iron targets while still detecting small gold targets is crucial. Look for detectors with advanced iron discrimination capabilities.
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Search Coil Size and Type: Smaller search coils are more sensitive to smaller gold nuggets, making them a better choice for gold prospecting. However, larger coils can cover more ground quickly. Some detectors offer interchangeable coils, allowing you to switch between different sizes for different scenarios.
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Sensitivity and Depth: A higher sensitivity setting allows the detector to pick up weaker signals from deeper targets. However, higher sensitivity can also lead to more false signals. Finding the right balance between sensitivity and stable operation is important.
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Audio Feedback: Clear and adjustable audio feedback, such as different tones for different types of metals, can help you identify targets without constantly checking the display.
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