Pioneer 101 - Manual (Page 8)

8
OPERATION
AUTO GROUIND CONTROL:
The Pioneer 101 automatic Ground Track feature allows operation
in virtually all soil conditions, regardless of mineral content.
Use it effectively on the beach or for gold prospecting. In the ALL
METAL Mode (Toggle switch in the middle), the Pioneer 101 will
detect gold nuggets through black sand and will find deeply buried
relics in all types of soil.
OPERATING TIPS:
Turn the detector on using the left knob. NOTE: The detector will remain
silent when turned on. It will emit sound when metal passes beneath
the search coil.
As the left knob is clicked on, it will be at the lowest sensitivity
setting. Turning the control knob toward "HIGH" increases
sensitivity to small or deeply buried objects. If the unit “chatters”,
reduce the sensitivity slightly, until the chatter stops.
For maximum performance, operate with the sensitivity as high as
possible. The sensitivity can generally be set higher when operating
in Full Discriminate (DISC) or Tone Discriminate (TONE) modes.