Ok, let me throw my two cents in here. Addressing Rick Nd, if I'm not mistaken, it sounds like you're having trouble hearing the hight tones and would prefer the lower ones. It sounds like you havn't read Andy Sabisch's book Mastering the Quatro, because he talks about a thing called cross saving where you can run in the coin mode with the ferrous or conductivity audio setting. If I'm not mistaken the conductivity audio is lower in pitch than the ferous audio, but I don't think that the Quatro owners manual addresses cross saving. If you're interested I could tell you how to do it on another message.
As far as depth goes, I've been running on auto sensitivity and I'm sure I've dug a few things at about 8 to 10 inches. I think I dug a shotgun shell on the beach at about a foot using auto. But..., this is a very interesting and important subject, especially if it's true that auto keeps the depth ability down a bit. I've always wondered about that, and I see we have a few differing opinions here, but I'm pretty convinced that the type of ground and especially how long the item has been buried has a lot to do with it. Acording the Charles Garrett, who I still consider is a pretty bright man, says that the surface area of the item has a lot to do with it. That has to be true because these casche jars have a bigger surface area and I'm hearing lots of stories of 18 inches and stuff on the bigger items.
I guess the other question is, do you get more depth on the beach than the parks and farms. Good question. Honestly, I havn't been measuring with a ruler yet and I also will scoop out 3 or 4 shovel fulls of sand or dirt and then scan the dirt to find the item, so it's hard to tell how deep the coin was. I think on the shot gun shell, I remember digging a couple of good shovel fulls and noticed that the target was still in the whole, and at that point it looked like the whole was about 7 or 8 inches deep. That's what made me think it might have been a foot deep or so. I guess someone's gonna have to do some accurate measuring and digging to find out the true enchilada here, but I've read other forums where they said they found coins
in about 15 inches of sand.
One last thing. Speaking of forums, if you go to Minelab Quatro forums, they have a guy on there talking about not even worring about the audio. He says, look at the pinpoint bars, and if they're moving "even a hair's breath" as he puts it, there's something down there. He says he recover's penny's at two feet in the wet sand. That's pretty deep. Well, I admit I havn't built my "test garden" as Andy says to do, and I'm using hard clay in the back yard as excuse. Maybe I should do it any way, and dig it up and bury some stuff, measuring it first of course and labeling them. Happy hunting. Marc Trainor.
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