Garrett AT Pro Owner's Manual page 22

40 Garrett Metal Detectors
Walk slowly
to allow
overlapping
of the
searchcoil
Scan side
to side
approx.
3 ft per
second.
• Walk slowly as you scan your searchcoil in a straight line
from side to side at a speed of about 2 to 5 feet per second.
Advance the searchcoil about half the length of the
searchcoil at the end of each sweep.
Overlap Swing
by 14 cm
1m/sec
1m/sec
In order to fully search an area, overlap the swings of your searchcoil by
half the length of the coil (about 5.5 inches). Sweep the searchcoil in a
straight line or with a slight arc at a sweep speed of about 1m/sec.
Tips for saltwater use: Hunting in a saltwater environment
is challenging for any Continous Wave (VLF) metal detector.
Saltwater is conductive and produces signals similar to foil.
Although the AT Pro is not specifically designed for saltwater
use, it can be used in this environment.
Proper ground balance is the most important step for
stable saltwater operation. To achieve stable operation:
• First, Ground Balance the detector to the area that will
be hunted (see pages 31–32). Saltwater beaches
typically Ground Balance between 0 and 20.
• If necessary, reduce the Sensitivity until the signals
become stable.
• Swing the searchcoil flat and at a constant height.
Do not bounce the coil or lift the coil at end of swings.
• Swing the searchcoil parallel to the water's edge.
1m/sec
Overlap Swing
by 14 cm
AT Pro™
41