Garrett Ace 350 Owner's Manual page 30

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 3 ft/sec.
• Isolating adjacent targets. The narrow detection field
of the ACE 350'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.
ACE 350™
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