Instruction manual
If your X-TERRA has the Auto GB function (X-TERRA 70 & 705), you can
accomplish a proper Ground Balance by pressing the Ground Balance
pad, then pressing the Mode pad while bobbing the coil a few inches o
the ground. The letters AU will appear on the display, and within a few
seconds, your X-TERRA will have set the Ground Balance for you by using
the software parameters established within the electronics.
Just as when you set the Ground Balance manually, the Auto GB value
will remain until you physically change it. All you’ve done dierently
by using Auto GB is to allow the detector to select the proper ground
phase setting for the earth below the spot where you were suspending
the coil. And for those of you who have an X-TERRA that oers Auto GB,
remember...
If you do want to update this “locked in” Ground Balance (ground phase
setting), you can by following the same steps as when you initially set it.
If I am running with a xed GB, I like to check it every few minutes, just
to make sure I am running with optimized settings. If you’ve not checked
yours while you are hunting, I’d encourage you to do so. You might be
surprised at how much variation there is in the earth’s mineralization,
within any given site.
Auto Ground Balance
20Understanding your X-TERRA - Ground Balance
Auto Ground Balance and Tracking are >10 times more
accurate than Manual Ground Balance!
Minelab analogy - Comparing Auto and Manual Ground Balance
7 8 9 10
(Manual Ground Balance can be compared to the inch scale on a ruler in that it only
changes in whole inches, whereas Auto Ground Balance (and Tracking) are set in
fractions of inches. )