Are beer cans suppoed to register at 90+ on the AT pro?

[reamer]

Hi all
Completely new at this, Name is reamer.

I was trying my new AT pro at an old abandoned railroad station. Knowing all the trash and iron that is going to be there, I set to:

Standard mode.
Sensitivity in the middle.
Iron to 37
and Notch mode shutting off everything below 75.

But I kept getting a great sounding "bell" tone all over the place, but not in any consistent location.
for example, it would bell chime on the stroke to the right, but not coming back,(stroke to the left)
the bell would be "over here" then "over there"

No consistency, when it was consistent, and saying target about 6" I dig out a beer can.
What Am I doing wrong?
Are beer cans supposed to be in the high 90's?

Thanks

 

[slingshot]

Much easier to just get it at the store! Seriously, your machine is normal and with the overload combined with the notch it was acting normal. A common giveaway is to raise the coil and ask yourself "Would a coin give this strong a signal at 8"?". BTW, ALL machines do this. It registers as a quarter/dime on my Ace. Raising the coil, my Ace w/sniper coil picks it up a foot!
Welcome to the hobby/forum.

 

[John-Edmonton]

Target ID on a metal detector is calibrated for coin sized objects. Once you go bigger or smaller, your ID will be off. This is typical of all metal detectors. A little trick you can do is practice swinging/ raising your coil over a coin, and see where the audio stops, and the distance of each swing. A pop can will allow the coil to do a wider swing, and maintain audio at a much higher height.

Now, digging pop cans isn't all bad. I have dug cans of still full of beer on beaches, where alcohol is banned, an officer was doing his rounds and the people buried their cans. They must have forgotten where they buried some of them, because I found them.