Saturna said:If such a machine was $5000 or even $10,000, MDers would find a way to acquire one.
spartacus53 said:Saturna said:If such a machine was $5000 or even $10,000, MDers would find a way to acquire one.
By acquire, we are talking five finger discount, right![]()
Sonoma County Mike said:Ground penetrating radar/ultra sound imaging in tandem with VLF with 100% target I.D. LCD display that shows a picture of what's in the ground before you dig. Imagine a radar generated picture of a gold ring projected on a LCD screen, you'd never have to dig a pulltab again! Deep silver coins would be obvious coin shaped images, deep iron nails with strong halos would be obvious visually.
Frankn said:Eagle Down, I think you hit the nail on the head. I mentioned it in a prior post. I was trying to explain to a new member how the detector knew what metal was down there. This is just a theory of mine, the manufacturers don't tell. The transmitted frequency is reflected back with the resonate frequency modulated on it. Kind of like a radio transmission. The detector reads the resonate frequency to identify the metal. Needless to say, the process is far from prefect ed.