can someone explain to me about.......

[Goes4ever]

Why do you need to lower sensitivity to single digits to ground balance? I never do that, what am I missing there?

I have read it several times here and alo on minelabs forum, but I must have missed the explanantion as to why I need to do that. Can you provide me with a clear, easy to understand reason why to do it this way? Have I been messing up because I have NEVER ground balanced this way

 

[Furious T]

I haven't seen that, Goes4ever, so I cant say why the people who have said it , have (said it). I cant thin of one factor which may influence a statment like that. When you ground balance, the only signal you want your detector to hear/see is the ground, and yes, the ground does give a signal, and that's why we ground balance. By reducing your sensitivity, you are cutting down on the chances that your detector will pick up signals and influences from areas of the ground which are not directly beneath your coil, e.g. a bottle cap just under the grass 12" to the right of your coil. If you have your sensitivity very high, you detector (and your ground balancing) could be influenced and affected by picking up a return signal from the bottle cap. I'm sure that those who are more experienced than I am can give you more and maybe better reasons for lowing your sensitivity, but thats my 2 cents worth. Sapper.

 

[Jack Flynn]

I don't actually know why either but it will make the stuff start jumping out of the ground if you do from my experience since I started doing it. My finds went up a lot. Just make sure you have a piece of ground that has no targets in it to GB the machine then turn the sensitivity down, it will read the targets and throw it off. Well I might be somewhat answering the question by saying that and didn't know it. Take the ground mineralization out of the picture and you get all targets and no interference.

 

[Digger]

I wrote that when the X-Terra's were new on the market. As such, there were a lot of folks who couldn't differentiate between the GB tone, too high of Threshold tone and falsing caused by a high sensitivity with an improper GB. To avoid this confusion, I suggested that they lower the sensitivity, GB and then raise the sensitivity. If you can tell the difference between those audio sounds, there is little need to lower the sensitivity prior to setting a proper GB. HH Randy

 

[Goes4ever]

ok maybe I will give it a try and see if I notice any difference. I seem to get a lot of good finds, and am getting good depth. But hey if it MAY improve my hunt I will suely try it out!