44 Garrett Metal Detectors
AT Max
™
45
• Alternative pinpointing technique: DD-wiggle.
Quickly
locate targets without using the Pinpoint button as follows.
Continuously swing the searchcoil side-to-side using fast, narrow
swings of 2 to 4 inches (i.e. wiggle). While continuing this side-
to-side wiggle, slowly move the searchcoil sideways toward the
target's suspected position until the audio response produces a
consistent, symmetric beat. This indicates the lateral left-to-right
position of the target. Then locate the target's front-to-back
position by rotating around 90° and repeating the same process.
Tip:
Practice any or all of these various pinpointing options in your
test plot. Choose the technique that works best for you. As you
improve your pinpointing accuracy, you will dig smaller holes and
increase your productive hunting time.
• Retune to narrow the detection area:
Large targets can
produce wide signals while pinpointing, making it difficult to
precisely locate the target's center. To help pinpoint, the detector
can be retuned to the target to narrow the detection field as
follows.
While holding down the Pinpoint button, move the coil toward
the target until the LCD just reaches a full-scale response. Then,
quickly release and depress the Pinpoint button again to retune
the detector and narrow its detection field. Continue moving the
searchcoil toward the target to find its central peak response. If
needed, repeat the retune process to further narrow the target's
response.
A quality hand-held pinpointer such as Garrett's
Pro-Pointer AT
is a recommended accessory item to speed the target recovery
process and to aid in locating secondary targets.
The
AT Max
can be submerged in water to a 10-foot depth
(maximum) to search in and along shorelines, rivers, piers, docks
or swimming holes. Use of the
AT Max
at depths exceeding 10
feet can cause leaks and damage the detector. Use of the
AT Max
beyond the recommended depth will void the manufacturer's
warranty. For use in saltwater, see tips on page 39.
The
AT Max
is shipped with MS-3 Wireless Headphones which
should never be submerged
. The detector can be used to
search along waterways and even in shallow water that does
submerge the
AT Max
control housing. However, radio signals do
not transmit through water, so if you will be hunting in water that
will cause your control box to be submerged, you will need to
switch to a wired headset. A fully submersible headset is available
from Garrett as an optional accessory.
When using the
AT Max
with its MS-3 wireless headphones, do not submerge the
detector's control housing. Waterproof headphones
(sold separately)
must be used
if the headset is fully immersed in water.
Underwater Operation
Use optional hard-
wired waterproof
headphones if the
detector will be
fully submerged.