In What Metal Detector works best for Gold Copper, Silver and Relics, – we will be putting the vlf’s ability to ignore junk against the power of the Pulse Induction to see what works best in a variety of field conditions and go to some areas where I know there is a lot of junk to deal with, but under the surface lies a wealth of historical artifacts. We find Gold rings, old coins and many interesting relics and badges lost in the ground hundreds of years ago and are now quite desirable and highly collectible.
The TDI is a pulse induction Metal Detector which is purpose built to penetrate all treasure hunting ground types and uses sound tones to help people sort out what is junk and what is potentially precious metals. the Minelab explorer 2 is typical of a Very low Frequency,- Or VLF Metal Detector and is made for general treasure hunting applications and uses a combination of visual display and sound tones to help people distinguish between junk and precious metals before you dig up the target. Whites TDI will give you an analogue like, or variable response to all different ground types and targets, the Explorer will give you a solid digital or yes or no response to a target or ground conditions. so the TDI will give a clear variable tone in all conditions the explorer will give an visual display of the targets conductivity and ferrous metal content in all but heavily mineralised ground conditions. But the VLF metal detector has one feature which makes them very popular with treasure hunters,- especially in the United states and that is the ability to completely ignore iron or ferrous targets while still detect non ferrous targets like silver copper and Gold at depth.