The DMC I has two modes: TR Variable Discriminate and VLF Ground Balance. These two modes can be monitored at the same time. The advantage of this is that once the VLF ground balance has been adjusted for the area you are hunting, you will find that the more conductive the target, the weaker the sensitivity of that target on the ground balance side. For example, an aluminum pull-tab can be detected deeper than a quarter which is approximately the same size. When using the TR Discriminator, the very opposite happens...the quarter can be detected deeper than the pull tap. The Major advantage to listening to both modes at the same time is that now only can you tell whether a target is good or bad, but how good the target is.
A Word About Nautilus Search coils
All coils have thick mounting lugs and a heavy duty cable strain relief. There are no "whimpy" cable connectors used on the DMC I. All connectors are strictly heavy-duty, nickel plated with a threaded clamp ring. Nautilus search coils and the entire quality parts inventory of Nautilus construction are engineered to keep you in the field longer. Stainless steel hardware is used throughout the DMC I construction.
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