schematics professional metal detectors
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Free Metal Detecting Tips
Sweep Techniques Using the Minelab Sovereign
Author: Internet Tip
Every time I see a post by a former Minelab user stating they didn't get more than 4 or 5 inches in depth, I try to figure out how this can happen. The only things I can come up with are, the sweep speed, and sweep of the coil itself. I believe first of all the rod length is the most important.
Some manuals tell you to make the rod length so that your arm will hang straight down without bending your elbow, while this is definitely more comfortable, I thinks its a major mistake. If your arm is hanging straight down with the coil level in front of you there is no way to make that coil be level with the ground in a complete arc, unless your sweep is contained to a few feet directly in front of your toes. It is imperative that the coil on the Sovereign (or any detector) remains at a constant 90-degree angle to the ground while remaining as close to the ground as possible. If you think about it, having the arm hanging straight in front of you will tend to make you swing the coil in an arc back and forth, making your only full depth capability's directly in front of you. The Sov hates that point where the coil is lifted from the ground and often false signals any time the coil is lifted from the ground. If you adjust the length so the coil is flat to the ground about 1-2 feet in front of you, this will allow a better swing arc, while keeping the coil flat as you bring it closer to you on each side. Any one who uses a Sov is aware of the slow sweep required for the Sov to achieve maximum depth, but perhaps that's the reason for them not getting the depth. Some can just not swing slow, or cannot adjust to it. I know I get impatient and want to cover more ground,
I just have to force myself to slow down. The one thing you should do if you are swinging faster than you should be is to at least take the time to investigate any threshold nulls while doing it. The sov will null on a good target if the sweep speed is to fast. So if you at least slow down around those nulls, you may be able to get the sov to respond to the target. This also will enable you to pick up some good targets near trash. This is the reason I like to keep the sensitivity down far enough to always have a threshold sound. I know others turn it up as high as they can with out falsing, but I like to keep it at the point where the threshold is still there at most times. I know if your in a really iron infested area that this is almost impossible, but in most cases 12 o'clock on the sensitivity will still give you a pretty steady threshold sound. Keep the threshold at a point where it is just barely audible, and investigate any changes either higher or lower, with a very very slow sweep and wiggle it quickly over any of the response zones. I hope you guys not getting the depth can understand what I am trying to say. But for the ones I see posting you have already given up.
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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
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