32 Garrett Metal Detectors
AT Gold
™
33
IrON AuDIO
IRON
AUDIO
Pushbutton
Iron Audio
ON
IrON AuDIO OFF: Normal division of medium and high tones, with no (0) Iron
Discrimination set.
Low-Tone
Medium-Tone
Medium-Tone
Medium-Tone
75
75
75
20
99
99
99
0
0
20
0
IrON AuDIO OFF: With the Iron Discrimination set to 20, all targets below 20
are silent.
Low-Tone
Medium-Tone
Medium-Tone
Medium-Tone
75
75
75
20
99
99
99
0
0
20
0
IrON AuDIO ON: Targets below 20 are now heard as a low tone and targets
above 20 will produce a medium or high tone.
Low-Tone
Medium-Tone
Medium-Tone
Medium-Tone
75
75
75
20
99
99
99
0
0
20
0
Press and release the IrON AuDIO pushbutton to switch the
Iron Audio feature ON/OFF. When this feature is on the words
"IrON AuDIO" appear on the lCD
(as shown in the illustration
above)
. The Iron Audio feature can be used in any of the
AT Gold
's three modes. Its functionality in either of the two
Discrimination Modes or while in the All Metal Mode will be
discussed separately.
Iron Audio Use in DISC Modes:
Scattered iron objects in the ground can mask good targets
and even create “ghost signals” that appear to be a good
target. Garrett’s selectable Iron Audio feature allows the
user to hear discriminated iron (normally silenced) in order
to know the whole picture of what is in the ground and avoid
being tricked into digging an undesired target.
Iron Audio helps the operator identify flat iron objects
such as bottle caps that would otherwise appear to be
good targets. With the use of Iron Audio, discriminated iron
targets (normally silent) will produce a low-Tone ID. using
Iron Audio, an iron nail produces several fast low tones
as the searchcoil passes over, while a bottle cap or steel
washer produces a very distinctive low-High-low response.
refer to the illustrations below regarding the use of the
Iron Audio feature while in either DISC 1 or DISC 2 mode:
