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9x12 v the stock coil????
- Thread starter Grunter
- Start date
I have low mineralization in my soil, and have extensively used both. For coin and jewellry hunting on land, I much more prefer the 9 x 12 concentric coil. I get much better accurate discrimination, especially with bottle caps. The 81/2 x 11 DD coil tends to ID bottle caps as coins, which is it's only downfall. I find the depth about the same, and pinpointing with the 9 x 12 on the inner front toe is dead on. I have used both in water, and either one suites me fine. I tend to dig all targets anyways, and usually use my Infinium PI or ATX PI. If my soil was more mineralized, I might consider using the DD coil, only to gain depth.
Below is a link to an article on search coils which you might find of interest. I also included a comparison histogram doing an air test with both coils.
http://www.garrett.com/hobbysite/hbby_searchcoil_tech_sheet.aspx
Below is a link to an article on search coils which you might find of interest. I also included a comparison histogram doing an air test with both coils.
http://www.garrett.com/hobbysite/hbby_searchcoil_tech_sheet.aspx