Watch the notch

[Ism]

FYI.............
Depending on the set frequency, some users recommend setting notch anywhere from 93+ to 99 to eliminate iron wrap around.
That is fine if you are only hunting targets that fall within the standard TID range.
However high ID targets (like coins or silver) at fringe depths start to rise up to as high as 99 just before the ID can no longer be read.
So deep coins and silver will be notched out if you have notch set to eliminate iron wrap.

 

[beepsilver]

Good info, thanks!

 

[Sleepyjim]

Hmmm I do not want to hear that!

Jim

 

[CZconnoisseur]

I did a tot lot hunt last night and noticed that a couple of 7-8" deep nickels in 12 kHz indicated in the 60s...in 12 kHz US nickels within stable VDI range almost always hit at 53-54. I may have to eliminate the upper notch range completely as I remember an 8-9" deep Wheat hit at "96" in 8 KHz on an older hunt. It was a faint hit, but I DO remember that one target.

Will have to try this at the fairgrounds tonight (if the rain holds off) and see what happens - hopefully I won't dig a ton of iron - but you never know until you try!!!

 

[Ism]

CZ, I'm not sure this info is valid for 4KHz. The ID is so low on dimes and quarter sized objects that its quite possible that the ID would disappear before it gets into the high 90's.
I only know about 8KHz on up. I got 97 on a 9" deep dime in 8Khz and I still had a good signal.
I also got high 96+ ID's in my coin test bed. But never tested 4KHz to see how high the ID would rise. I only recently started experimenting at that frequency.