Instruction manual
67
2. Consistent Sound
I’ve learned the X-TERRA has a very forgiving sweep speed which I use to my advantage when
determining whether to “dig or not”. By varying the sweep speed as I “X” over the target, I am
able to work the coil very slowly, while maintaining an accurate TID. On the same token, I will
regularly increase my sweep speed while X-ing over a target, trying to make the sound “break up”.
If it does, it is usually a deep ferrous target. While X-ing over the target, I’ll also work the coil back
toward my feet, listening intently as the coil crosses the target repeatedly. Already knowing the
location of the target (leaf, blade of grass etc) I know when that target is about to leave the eld
of detection. At that time, if the sound breaks up or I get a blending of more than one tone (I refer
to this blending of tones as harmonics), I would almost bet that the target is not a coin.
Understanding your X-TERRA - Practical Detecting
If, however, the single tone remains consistent as I
drag the coil away, then drops o without changing
pitch, I’m betting it is going to be worth digging.
Hunting in Multiple Tones allows me to have the
possibility of 28 dierent tones on any given target.
Those multiple tones are why I am able to hear
“harmonic tones” on deeply buried iron. If I had been
using one tone, two tones, three tones or even four
tones, I would have gotten that same “one pitch
sound”, regardless of the ferrous reading of the target.
By having Multiple Tones activated, I can hear any
changes in tone as the target “moves” from one notch
segment to another because each notch segment is
assigned a specic and separate tone.