Product Manual

- 13 -
Theinitialsearchshouldbeperformedasfollows:

1. SettheSensitivitycontrolformaximum(XHindication).
2. Holdthelocatorverticallyandapproximately1to1‐1/2feetabovethesurface.
3. Walkwithoutturningortiltingthelocator.
4. Markthelocationswherethemaximumsignallevelsoccur.
5. Returntoanareaofmaximumsignalstrengthandholdthelocatorseveralinches
above the surface.The sensitivity will probably have to be reduced during this
secondpass.Four‐inchpipescanbelocatedatdepthsupto8feet.

LocatingSteelDrums

As shown in Figure 21, the
 GA‐72Cd’s signal pattern will vary depending on the vertical or
horizontalorientationofthedrumandhowdeepitisburied.A55gallondrumcanbelocated
atdepthsupto8feet.


 SIGNALPATTERNFORDRUMSBURIED
 APPROXIMATELY4TO8FEET
 +OR‐


 SIGNALPATTERNFORDRUMSBURIEDAPPROXIMATELY4FEETORLESS
 +OR‐ +OR‐ +OR‐ +OR‐












Figure21:SignalPatternsProvidedbySteelDrums

LocatingOrdnanceandWeapons

The versatile, lightweight, cost‐effective GA‐72Cd is also
designed to aid EOD technicians and law enforcement
officersduringareasearchoperations.



Figure 22: Basic Signal Patterns from Vertical and
HorizontalTargetsHelptoDetermineTargetOrientation

+or‐ + ‐