Garrett AT Pro Owner's Manual page 43

• Isolating adjacent targets. The narrow detection field
of the AT Pro's DD searchcoil allows better separation of
adjacent targets versus a similar size concentric searchcoil.
Use narrow swings of the searchcoil in trashy areas to isolate
good targets amongst the trash.
• Swing your searchcoil parallel to plow lines and the
water's edge. This will minimize the negative effects caused
by uneven ground in plowed fields and varying amounts
of moisture near the water. Do not swing the searchcoil
perpendicular to plow lines and the water's edge, as this may
produce abrupt changes in ground response that can reduce
the detector's performance.
DD
Searchcoil
AT Pro International™
Concentric
Searchcoil
43