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help with tesoro:tesoro:

Ground Balancing in the Field

Ground balancing is not a difficult procedure, but it is critical if you desire maximum depth and stability. It is especially important if you plan to find deep relics or prospect for gold nuggets.

No matter how or where you will be hunting, or whether you will be hunting in the All Metal or Discriminate Mode, you must tune the ground balance for the area that you will be hunting. If you fail to ground balance for every site, you will not be working at the peak of your detector's performance and may lose both depth and sensitivity.

To ground balance in the field, we will start by assuming your detector is turned off. This will be the normal condition of your detector when you start hunting. Ground balancing can be done at any time while you are using the detector. It is not necessary to turn the machine off each time that you ground balance.

Start with the controls in the following position:

1. SENSITIVITY on OFF.
2. DISCRIMINATE LEVEL clicked into the ALL METAL.
3. All other controls will be set during the ground balancing procedure or are not applicable at this time.

Turn the detector on by rolling the SENSITIVITY knob clockwise to about 9 or 10 on the dial. You will hear a quick double beep to let you know the detector is operating. Next, adjust the THRESHOLD knob until a slight, steady hum is heard. The machine is now ready to be ground balanced. Next, find an area that has no metal targets in the ground, as this may give false readings while in the ground balance procedure.

Raise your searchcoil about 6 to 8 inches off the ground. This is high enough so that the detector will no longer read the minerals in the ground. While listening to the threshold sound, lower the searchcoil to about 1 inch off the ground. As the coil is dropped, the detector will start to read the ground minerals and will give you one of three sounds: 1) The threshold tone will get louder and raise in pitch. This is a positive response; 2) The threshold tone will go quiet, followed by a quick tone. This is called a negative response; 3) There will be no change in the threshold tone as the coil is dropped. This is the balanced response. When you get a balanced response, the detector is telling you that it is ready to hunt.

The positive and negative responses are easy to adjust. If you get a positive response, turn the GROUND BALANCE knob towards the minus sign on the face or in a counterclockwise direction. Getting a negative response means turning the GROUND BALANCE knob towards the plus sign on the faceplate or in a clockwise direction.

Here is an example of balancing: After setting up the detector, you raise the coil and then push it to the ground. As the coil drops, the threshold hum gets louder. You then turn the GROUND BALANCE knob counterclockwise towards the minus sign. You pick up the coil and push down again. This time you get a slight negative response. Turn the GROUND BALANCE knob a little bit towards the positive or in a clockwise direction. When raising and lowering the coil, the threshold makes no change as the coil is dropped. At this point the detector is balanced for the area and is ready to hunt.

Ground balancing is a learned skill, one that you should practice often. AVOID THIS! Never tilt your searchcoil when "pumping" your detector to ground balance. It is easy to practice almost anywhere
 
Once you master it, it becomes second nature.

You notice it even if there no GB control.

You can tell how the ground is matched with the settings.

It's a good tool. Helps to undrestand ground acceptance

or rejection. That will help make you a better detectorist.

Good Luck,
 
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