DD 10.5 coil

[Bill M]

I just purchased a new DD 10.5 inch coil for my X-Terra 70 and I tried it out in the yard before I head out hunting tomorrow. I noticed coil target sounds a little different than the stock coil. Can anyone tell me what I should expect, I'm going to be with folks tomorrow so I don't have a lot of time to re-learn a new machine. I had to send my stock coil back to Minelab for repair. The new DD is all I have to work with. Can anyone HELP! Bill

 

[Bill M]

n/t

 

[Furious T]

Bill, one big difference will be with pinpointing. Instead of just Xing was with the concentric coil, you nedd to turn the coil itself with the DD coil. One of the most comfortable ways to do this is to move your body stance to be at right-angles from when you first passed the coil over the target. Pinpointing with a DD coil involves creating two lines of detection and noting where they cross, instead of just forming an X as with the concentric coil. You are performing exactly the same function, just in a different way. Using a DD coil slowly can also give you an estimate of the size of the target if you are paying attention . Gropund coverage should be slightly quicker (not swing speed) as you dont have to overlap coil swings quite as much as with a concentric. I've found the 10.5 DD 7.5 KHz coil to have about the same sensitivity as the 9" 7.5KHz concentric. If you have the 18.75KHz coil it could be slightly more sensitive to small jewellery (e.g. earrings). Take it easy, get to know it and I'm sure you'll have a ball. Sapper.