Ring vs pull tab

[Nexus]

U.S. Nickels and smaller Gold Rings are all but the same as a Pull Tab to most detectors. Anyone Serious about finding Jewelry detect without Discrimination.

More to this point. Anyone serious about metal detecting works without discrimination. Discrimination is a way to ease the pain in trashy sites, but it is also the way to loose many good stuff.

[green]

Yeah, both can have ID's that vary/differ so the golden umax videos are probably misleading.
If I want to eliminate the tabs I should mask out most everything but the silver and if I want to find gold rings like mine I should mask out everything except for 12-15 - and dig a couple hundred tabs before finding a ring...
Have you guys analyzed pi pulse returns though to verify that gold and aluminum look identical?

(PI pulse) Most if not all targets I've charted with a time constant 10usec or less chart a straight line decay on a log linear chart. Material and size effect time constant so a lead or copper target could chart the same slope. Coil on time can effect decay with longer time constants. Orientation and target position on the coil can effect decay slope. I know zero about VLF detectors. Does a US nickel ID the same with the nickel parallel or perpendicular to the coil?

[bklein]

More to this point. Anyone serious about metal detecting works without discrimination. Discrimination is a way to ease the pain in trashy sites, but it is also the way to loose many good stuff.

I think the first goal - if you are serious - is to find conditions where discrimination would really help.
I'm just talking beach hunting here.
Like someone said a quarter is 25 penny digs - and I don't really care much about a cruddy quarter.
If dig everything were critical, everyone would stick with PI detectors.