Posted by George (MN)
on 5/12/2009, 9:03 pm, in reply to "TID"
68.117.64.198
Thanks Reg. It seems odd to me that relatively few on the forums say they have soil that throws off IDs. Perhaps most of the deep old coin bragging comes from areas with almost no ground minerals, or from people who dig everything and don't mention ID errors.
On rare occasions I get a 4" deep nickel with tabs rejected, as they ID as zinc.
I had a Bounty Hunter Landstar that claimed any-thing down 6" was a dollar. A White's XL Pro did the same.
My X-Terra 70 has fairly accurate IDs, but one penny down 3 or 4 inches IDed as quarter. I still haven't found a coin over 4" deep with it, but the ID is still pretty accurate on a 5" deep dime I planted in the yard.
My F70 ID probably jumps more at 3"-4" than my White's MXT, XLT, & M6 did. And the F70 can't didtinguish between shallow nickels & new tabs like the White's detectors. At 5", A White's ID on penny or dime in 99% of my soil is all over. The F70 ID stays almost always above pulltab.
I think the worst I had was a MPX from Kellyco. At first I couldn't get it to beep most passes on a coin planted 3" deep. Then I discovered if I whipped the coil at about 8 feet per second, it beeped every time. The ID read max 50c, really meaning it couldn't tell, I assume.
I'm told a Fisher Coinstrike might not necessarily get the correct ID, but the ID will lock if the object is round. I had one briefly, lost patience before learned. HH, George (MN)
Responses: