What is metal detecting?

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At it's simplest, the hobby of metal detecting consists of two parts.  The first is scanning with an electromagnetic machine to locate metal objects.  The second part is then retrieving the detected object.

Metal detector hobbyists can find all sorts of items, from valuable rings to rusty iron scrap.  Most commonly, detector users look for coins, jewelry and relics from the past.  These relics can include farm implements, buttons, suspender clips, and bullets.  Anything metal that has been lost has the potential to be found.

Beach and water metal detecting is a little different from detecting on land, but the machines operate in the same way.  Beach and water hunters use a scoop with holes to sift through sand to find their targets and land hunters use small digging tools to retrieve most of their targets.  Prospectors use similar metal detectors to find metal ores such as gold nuggets or raw silver.


How deep does it go?
Most detectors will detect items from right on the surface to about 6"-12" down.  The larger the object, the deeper it can detect.  On average most items I dig are about 5" deep.

Are you looking for gold?
Generally, no.  I'll take it if I find it, but it's mostly pennies and bottle caps I'm finding.  My focus is coins, and I am especially looking for older coins with designs that are no longer made.  Some detector users, especially beach hunters, look for gold and silver jewelry almost exclusively.

What's the best thing you've found?
I've never made one outstanding find.  I have found several gold rings through the years and many older coins.

Is it profitable?
Not really.  It's a hobby more than anything else.  I certainly have not found enough to recoup all I have spent on machines, research, travel expense and batteries, though I have found a lot of interesting things.  Some people are lucky enough to find valuable objects that are worth a great deal, but these are rare occurrences.

What's the oldest thing you've found?
I've found many old items such as square nails and skeleton keys but these don't have dates on them.  I have one badly worn copper coin that is unidentifiable but is probably from the late 1700s or early 1800s.  In 2009 I found my oldest coin with a clear date, an 1833 dime.

Can you find my ring/jewelry/keys/cell phone?
Probably!  Especially if you have a good idea of where it was lost.  Finding a ring in a football field sized area may be time-consuming and challenging whereas, items lost in residential lawns are usually more readily recovered.  Typically there is no charge for me to look unless there are some material costs or a significant amount of time involved.  Often all I ask of residents of older homes is permission to use my metal detector on the property to see what other items I may recover to add to my collection.
Where can I get a detector?
There are many sellers online.  Some are lucky enough to have a retail store or dealer near them.  You can check the manufacturer's websites for dealers in your area.  If you are a first time buyer, I strongly suggest buying from a dedicated brick-and-mortar dealer as he can help you choose the machine that is best for you.  Also you can try out different machines and the advice these guys can give is worth more than the few dollars you'll save buying anonymously online.

Where do you go to find stuff?
Usually I go to parks and public schools in the area.  I search the yards of my friend's homes and seek permission from property owners at apartments and private schools, and anywhere else I can think of.  Some places do not permit metal detecting, and it is important not to use a detector in these places.

What settings do you use on the Minelab E-Trac detector?
Others who own the same brand and model of detector I use often ask about the settings on my machine.  Here they are:

          Auto Sensitivity +3 (Manual 28)
          Coins mode combined with Relic mode
          Threshold
16                               Threshold Pitch 5
          Volume Limit
24                          Deep On (or Off)
          Volume Gain
20                           Fast Off
          Response
Normal                       Trash Density High
          Tone ID - Multi Tones                  Ground Difficult              
                        Conductive
Sounds      Pinpoint Normal             
                        Variability
30             
                        Limits
30