NO discrimination will only accept good targets! What we can do is use sounds, discrimination setting, and our skill and experience with a detector to reject the majority of the trash. When all is said and done we will miss some good targets if any discrimination is used.
The Explorer has all metal detecting with tones or 1024 notches to select items to be accepted and rejected. When we consider the number of options with the combination of notches in combinations we can select then the numbers are tremendous.
A good example is not all gold rings are rejected just because we reject pulltabs. We can accept a nickle and still reject many trash items that hit in that notch window but by adjusting the width of the notch window with more or less digital combinations or more or less black and clear areas of the screen. However, if the trash item and nickle read the same then there is no way for the detector to know the difference.
This is where the skill and experience of the user really comes into play. As an example a nickle will sound different than many pieces of trash with the same readings when swept from various directions. The size of a target can be measured and a nickle distinguished from a lot of trash. So we end up with a minimum amount of trash in comparison to all the trash that can be detected but is rejected. We play the odds and load them in our favor as much as we can. In my opinion the EX2 allows us to do that better than any detector I have used to date.
If that is a problem then we can go to all metal and use tones, the skills and expereinced alread mentioned, or we can dig everything. In addition we can use a combination of all metal and discrimination so there is not much more that can be done with today's technology. I think you will find the Explorer does this in a very effective way.
Cody
