Having Trouble Starting Off! help?

[Spartcom5]

Hey guys I recently bought a garret ace 250 as my first metal detector, I got a lesche digger, with a garret pro pointer. However after hours of searching ive come up with nothing more than 3 pennies and junk galore. I've tried turning down my sensitivity and up, I haven't really even had a solid signal they always seem to jump all over the place. So to test this out I buried a quarter in the ground bout 6in deep and my detector picked it up but barely, if it was around trash I would never find it. I then buried a 14k bracelet not small either, bout 4in deep, my detector didn't pick it up AT ALL. I cranked up the sensitivity to max and it would give a random beep but nothing solid........ Also I sometimes dig up those jumping signals only to find nothing is even there. Very frustrated and don't know what to do next except keep on trying. Do I have a faulty detector or something?? And help would be very very appreciated right now I don't don't want to give up!

 

[cudamark]

Pre '82 are copper, post '82 are zinc, '82 has both. You're going to find fewer and fewer '82 zincs as the years go by as the zincs dissolve over time. Just the copper ones will survive.

 

[slider66]

Make sure all your connections are good and tight. It is possible that your coil could be bad. Make sure that the connector is seated properly,