For what it's worth: The manual doesn't tell you how to set up the tones, so this is an oldie that started years ago. When in tones mode, start rotating the disc control until a nickel just gives a smooth low tone and you're set. Nickels/large foil will now give a low tone, tabs (except for the sta-tab) a mixed tone, and clad a high tone. You get a little more depth in standard disc. and I always hunt with it at minimum. All metal will find every piece or iron in the neighborhood. Run the sensitivity at 2/3rds max at least. Max will pick up lots of large targets like an aluminum can at a foot. Since you are new, I better tell you that a sta-tab is the gosh-awful square tab that registers as a nickel on all machines.:veryangry: For the most part signals will have a repeatable tone, but there are a few trash items/deep targets that will give an "iffy" signal. You will have fun learning. Don't be surprised to find a high tone and it's a coin beneath a tab-it's good at this.