Thanks Andyy,
Great advise. Hoping i got the right detector. Fisher F70. Came with 3 coils, 10-1/2" & 9" elliptical and a 5" Round. It's only 13kHz but I feel it was the best for what i could afford. I've been playing with it on my property with the 10-1/2" but it's so trashy from previous owners. Nails, nuts,bolts, washers, pull tabs, bottle caps, just about anything you can think of. Having a bit of a hard time distinguishing tones and figuring out the settings. Autotune is WAY noisy. Threshold -4, sensitivity 60. Discriminate mode is better but the ground is so hard here it's difficult to dig. I'm going to head to a park or field to see how it reacts there. I have a lot of studying/testing/learning to do before doing any real prospecting. Never use a detector in my life so i'm not sure what i should be hearing. Plus all the different settings. We'll see how it goes.
Happy Hunting!