You've probably got more but here are most of the "iffies" that I dig:
1. (a)The high conductive targets that mostly are on the upper left of the smartscreen but on some sweeps of the coil come off the left side. These often turn out to be coins.
(b) The high conductive targets that have a seemingly small profile that makes you think it's a piece of copper wire/bb/etc. These often turn out to be coins. Sometimes on edge or just sometimes seem small because the iron or minerals around them only let you hear part of the coin.
(c) The high conductive targets that have a seemingly large profile that makes you think it's a big bottle cap, can, or other junk. I think it's the high gain and DEEP setting that makes targets sound bigger.
2. Targets reading lower than indians but are deep sometimes turn out to be indians.
3. Targets that are relatively close to the nickel zone but not right on. (3 to 7 conductive).
4. I call shallow targets iffies(less than 3 or 4 inches). These have surprised me many times, turning out to be old coins.
5. At old sites when the deeper high conductive targets are almost all gone I start digging anything that's deep except obvious iron and usually not the tiny foil/22 casing zone. However, many buttons and even 3 cent nickels are in that zone, not to mention GOLD!
6. Sometimes a pulltab hit just right will give you a coin tone/ID. It's just the edge of the pulltab.......OR IS IT?
HH
Neal
1. (a)The high conductive targets that mostly are on the upper left of the smartscreen but on some sweeps of the coil come off the left side. These often turn out to be coins.
(b) The high conductive targets that have a seemingly small profile that makes you think it's a piece of copper wire/bb/etc. These often turn out to be coins. Sometimes on edge or just sometimes seem small because the iron or minerals around them only let you hear part of the coin.
(c) The high conductive targets that have a seemingly large profile that makes you think it's a big bottle cap, can, or other junk. I think it's the high gain and DEEP setting that makes targets sound bigger.
2. Targets reading lower than indians but are deep sometimes turn out to be indians.
3. Targets that are relatively close to the nickel zone but not right on. (3 to 7 conductive).
4. I call shallow targets iffies(less than 3 or 4 inches). These have surprised me many times, turning out to be old coins.
5. At old sites when the deeper high conductive targets are almost all gone I start digging anything that's deep except obvious iron and usually not the tiny foil/22 casing zone. However, many buttons and even 3 cent nickels are in that zone, not to mention GOLD!
6. Sometimes a pulltab hit just right will give you a coin tone/ID. It's just the edge of the pulltab.......OR IS IT?
HH
Neal