Frank in NH said:
Sven How do you deal with pulltabs and other junk, just dig it all?
Rather easy.
It's all in the pinpointing.
Take a look at the picture. This is where I set my two-tone break and is the same spot I leave it at in disc mode.
If the pointer drops below the red into the green, small thin ladies gold rings will be discriminated out. Find that sweet spot on your machine and mark it.
Move the pointer just ahead in the red and you'll eliminate a lot of small foil. You will get all the rest of the buried goodies.
The trick in determine whether its coin or jewelry is during the pinpoint process. If you have already dug a lot of trash you know coins size target audio from the larger junk.
That's a start.
Pinpoint like you would any DD coil without a pinpoint button. Try and center the coil over the target. Stop the coil and pull it backwards off the the target at the point the audio stops, the target is just at the coils tip area.
Here's where the tell tale sign will be found if its junk.
If using disc mode, just before the audio goes silent, if you hear any type of ratty after glo sound. Most of the time it's junk.
If the target audio goes silent from a sharp break off of a high tone---dig.
In all metal two tone mode, the same think happens.
When pinpointing, a high tone will break off with a tiny, quick low tone grunt. If it breaks off with just a high tone--dig.
Note I have my low tone volume turned way back. Loud enough to alert you to iron without driving you batty.
Give the above a try, I use the Super 6 coil for my coin and jewelry hunting.
Pulltabs, well your going to dig them, the ones up here sound like coins. But, if I find the deep ones 5-7" down, I know I will not miss the gold rings. It also lets me know others have missed the tabs and probably left some gold......................
Headphones make a difference, a number of us found that the inexpensive 32ohm Calrad headphones provide just the right audio. No need to buy the $100+ dedicated metal detector headphones.
If you notice in the picture, the green area is the zone that will pick up the very small to tiny gold and nuggets. Where the sticker is marked NG, above this point into the green small chains and nuggets will start to disc out.
Small tiny gold chains and nuggets fall into the iron range. You can confirm this on any target ID screen machine. So if your not willing to dig down into the iron range, forget about Micro jewelry. There's a lot of talk about Micro jewelry hunting, think most people who get hyped up on it and try it give up fast, the small foil, iron trash in most areas will bewilder most hunters even with target ID screen machines.