First off, lets say you dig your plug, target isn't in the plug and no matter how hard you try, you just don't hear anything in the hole with your pinpointer. You will need a dime, penny, even a relic that you can hold against the pinpointer with your thumb. The only thing required is it needs to be metal. First thing is turn on your pinpointer and take the dime or whatever it is you have and start at the end of the pinpointer that holds the battery. Began to slide the item down the pinpointer toward the smaller end where the detection takes place. As you get closer(somewhere close to the button) you will hear the pinpointer begin to respond. Stop. Move the item back just to where the pinpointer is quiet again.
Now to the opposite end of the spectrum. Say you have a large target or you have multiple targets in the hole and your pinpointer is going off before you even get close to the bottom of the hole. Move your pinpointer down into the hole where it is responding. During this time don't move it. Turn the pinpointer off then back on.(again don't move it out of the hole). You have now in essence tuned it to respond only to closer targets. Now you can move the pinpointer closer to each target. You may only get 1 or even a 1/2 an inch of detection so it can help narrowing down which target to hit or put you precisely on the larger target. You may even have to do it once more depending on the size of the target you are hearing. Once you are done, turning off the pinpointer will detune it back to the factory settings. I've used this almost every time I go relic hunting.. I hope this helps
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