Question about the depth of scanning !

		Quote:			Posted by aspardeshi
	Hello Room, Suppose a MD scans for upto a depth of 4 Ft maximum. Let us assume there is a gold ring at a distance of 2 Ft below ground level. If I hold the detector 1 Ft above ground level, will it scan the same ring successfully ? Experts please opine. Thank you in advance.

There has never been a metal detector that will find a gold ring at a depth of 3 feet. That's not possible with today's technology. Sorry.

Even at 2 feet, you might find a soda can or an axe head but it is doubtful that you could detect a gold ring. Not enough mass.

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		Quote:			Posted by aspardeshi
	How about DBP2010 or XR71 ? it scans upto a depth of 4-5 ft I guess. Do you mean to say that all the gold coins and gold rings are at a maximum 2 Ft distance or less below ground level max can be detected, for any detector, even the one which scans at a max of 4 Ft like DBP2010 or XR71 ?  : This is what I have understood. It all depends on mass, smaller mass at short distance below ground level can be detected, if I receive signal for 420 CM scanning depth detector and if i do not find anything at around 6-12 inches then there may be a big treasure/ metal  below it   , is it so ?

Depth is arbitrary. When someone discusses depth, it doesn't always mean that every item can be detected at the maximum depth. Some items are just too small for depth detection beyond a few inches. A paint bucket full of coins might have enough mass to be detected at 2 feet while a ring certainly would not be detectable under those circumstances. Distances in air are different than distances through soil or sand. Lots of factors affect depth.

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Some people like to do what is called "scrubbing" and hold the detector against the ground. Others leave it a couple of inches above the ground. When I have a hard to find target, I raise the coil until the signal goes very faint and pinpoint it that way.

The answer is yes, it is POSSIBLE to find and detect an object with the coil held above the ground but you must remember that you will miss the deeper, smaller targets that way.

Do you even own a metal detector? Have you never used one?

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There are two basic types of metal detector. A motion detector and a non motion detector. They come in all flavors. VLF/TR, BFO, PI, IB and other exotic combinations.

With a motion detector, a target is sensed as the coil moves over it and then drops to silent if you stop moving. With a non motion detector, the target remains loud as long as you are over it.

A target can be sensed in the air just as well and sometimes better than in the ground. Those who hunt in playgrounds often forget that when they go under a swing, they can detect the metal in the swing itself as a target. That target is above the coil. Sometimes people even forget that the edge of the coil can detect metal and when they wear shoes with metal eyelets, they find them with the edge of the coil. Steel toes in shoes are also a problem and some women's shoes have steel in the sole from the toe to the heel.

There's a lot for you to learn. I understand better now why you are asking questions like you are. In the future, you should let others here know that you don't yet have a machine. When you have one, you will have a lot revealed to you about how they work.

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		Quote:			Posted by aspardeshi
	GD, What type of detector DBP2010 or Sniffer XR71 ? Please let me know, I am very eager to hear. Thanks in advance.

Just detectors in general, mate. I don't have either of the two machines you are interested in.


Aspardeshi, perhaps you should consider buying an inexpensive machine or renting one just to try it out. Look in the second hand shops to see what is out there. Perhaps there is a place you can buy one where you live. You really need to get your hands on something just so you can truly decide on your own what you really want.

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