metal detector laws
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Free Metal Detecting Tips
Ground Balance
Author: Internet Tip
The Minelab Sovereign is worlds apart from a Fisher CZ or White's XLT first off both of these units use ground balance to filter out the ground signal. This is key when you filter out the bad you always filter out some of the good to put it simply. The Sovereign does not filter at all. In a traditional senseit Ground ID's and compares a ground signal with a target vs. a ground signal without a target. Because the Sovereign is using 17 frequencies to look through the ground, not only is it more accurate because it looks at the target 17 timesin a sense. It is a proven fact that different frequencies travel through different material at different rate of speed and intensity andtherefore affects depth penetration. If the ground you are hunting is hot on 12 Khz. then a Tesoro detector will do real well as will theSovereign because it hunts with a 12Khz signal, but the CZ and XLT will have trouble getting the depth because they do not have a 12kHZfrequency Now if the ground likes 4.5KHZ then the XLT or CZ7 will hit hard at better depth but so will the Sovereign because it also huntswith 4.5Khz., and so on and so on. See where we are going with this line...
Now consider this, The Sovereign gives you a negative signal over 99% of all iron (only being fooled 1%) and in 99% of the time overiron, the Sovereign will report a Non-ferrous item in close proximity with that of a iron target and read it true every time. It does it likethis: it looks for the ground signal, then looks for the iron signal and then it looks for the Non-ferrous signal. If it sees the ground signaland no iron or Non-ferrous signal it reports nothing. If it sees the ground signal and an iron signal and no Non-ferrous signal it reportsonly the iron signal as a negative target "low gritty sound" through threshold. If it sees the ground signal, no iron and a Non-ferrous signal,it will report the Non-ferrous signal based on your discrimination setting.
Now if it sees the ground signal and a iron signal it will look for a Non ferrous signal before reporting the iron signal if it sees the Non-ferrous signal with the iron signal it breaks out the Non-ferrous signal and reports the target based on your discrimination setting. This is called Iron Mask and when you see it at work you will never, and let me repeat that you will never go back to a XLT or CZ. I have hadcustomers completely search a yard with the XLT, forward backwards and diagonally, and get everything they could get out of the yard,then take the Sovereign into the same yard and recover more targets. a lot of the times the target is close proximity to a nail or other iron target.
A dealer for Fisher, (and I mean a Fisher Dealer and Die Hard Fisher User) picks up a Sovereign XS in a field that was known to be littered with nails and other iron trash and hunted the field marking targets and how they read on a Sun Ray meter. They then came back and tradedit for the CZ and again hunted the same field this time the CZ found more targets and ID them as good targets. It could not see one of thetargets that the Sovereign did. Then this dealer went out and dug up all the items, all the items that the Sovereign read coins it ended up being a coin and in addition no iron was ID as good targets. The CZ could not make the same claim, it did not recover any more coins, but awhole lot more iron trash that read good. The target that the Sovereign ended taking the day on that the CZ did not ID was a 1903 SilverCanada nickel which is smaller than a US dime. It was recovered at a depth of 10" I rest my case.
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I'll never forget the first time I swung a metal
detector and it BEEPED!
I dug up my treasure and I held that shiny circle of metal in my hand--a
quarter!! Wow! A whole twenty-five cents! Since then I have treasured
hunted all over the world. This site has info on metal detector laws and hopefully
anything else you need to know about metal detecting, treasure hunting,
and finding gold!
One thing that I have found indispensible for any type of treasure hunting or metal detecting are a good set of maps. With a set of topo maps or historical maps, you can find treasure caches that no one else knows about. Find ghost towns, long lost encampments, shanty towns, old farms, schools churches, roads, you name it! My favorite place to get maps is online from Maps.com. They have a huge selection.
And if you are an undersea treasure hunter, you need a good GPS and nautical charts. Fugawi has a great selection of these available on their website.
Good luck!
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