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Scavenge for gold, coins, and other buried treasure with these metal detectors, including models from Garrett, Fisher, and National Geographic.
The development of transistors, discriminators, modern search coil designs, and wireless technology significantly impacted the design of metal detectors as we know them today: lightweight, compact, easy-to-use, and deep-seeking systems. The invention of a tunable induction device was the most significant technological advancement in detectors.
Metal detectorist picks up signal in Romania — then unearths almost 5,000 ancient coins 2,000-year-old cemetery — full of Gothic treasures — unearthed in Poland. See photos
Radar is sensitive to changes in material composition; detecting changes requires movement. When looking through stationary items using surface-penetrating or ground-penetrating radar, the equipment needs to be moved in order for the radar to examine the specified area by looking for differences in material composition.
Metal detectors are invaluable for gold prospectors, as they are quite effective at detecting gold nuggets within the soil down to around 1 metre (3 feet), depending on the acuity of the operator's hearing and skill. [citation needed]
Best Radar Detectors. Best Overall: Escort MAX 360c. Most Affordable: Cobra RAD 480i. Most User Friendly: K40-Platinum 100 RC. Best Value: Uniden DFR7. Best Display: Escort Redline 360c.
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