changes, and other nearby detectors can also cause the detector to emit false signals. The
false signals will generally sound "chopped" and will not be repeatable so you will not have
any trouble recognizing them. They can be distracting though and adjusting the control for
more" stability will help. To optimize detection depth to the prevailing hunt conditions,
adjust the stability control as follows: Rotate the control toward "less" until falsing begins
to occur. Then back slightly toward "more" until most of the falsing just begins to stop.
9. HEADPHONE JACK: This is a 1/4" stereo type jack. Headphones must be used with this
unit, preferably 4 to 16 ohm with built in volume control. This unit does not have an
internal speaker.
FIELD OPERATION
The detector should be held in a position that is comfortable to you. Sweep the search coil
from side to side in about a two foot arc as you keep the coil level and within about 1 to 2
inches of the ground. When using the Turbo in the slow speed setting it does not need to be
hurried, so go at a pace that doesn't wear you out.
Fig. 18 Sweep in a slightly overlapping pattern as shown. Use as you would any normal
detector
--the search signals should 'peak' as the target center is passed. Try to keep the search coil
parallel to the ground at ail times and avoid lifting the coil off the ground at the end of
each swing. This will prevent loss of detection of some deeper targets, since you are
putting more distance between the coil and the target
For competitive events when fast sweeps and quick pinpointing is necessary, use the "fast"
setting of the speed toggle. Generally, you should sweep the search coil as close to the
ground as possible without actually touching or rubbing the ground. Hitting the ground or
rocks may cause a false signal much like a desired target would sound. Sweeping the coil
too high above the ground will result in a loss of depth. When operating the detector some
false signals may occur at the end of your swing. At the point where the coil reversed
direction, the detector is most susceptible to trash induced noise. There are ways to tell
whether these noises are deep, "good" targets or just trash. The first is repeatability. Trash
induced signals will normally not be repeatable, as you swing the coil over the suspected
target several times, whereas a good target response will be repeatable. You can also
switch to the pinpoint mode and check the target response. If the response is weak it may
well be a deep, "good ' target, but if it is very strong then it is probably trash. If the trash in
an area is so much that you are getting a lot of choppy sounds and false signals, you may
get better results by slowing down your sweep rate and using shorter sweep arcs. It is also
helpful to hunt the area twice, the second time at right angle to the first time. This will
allow detection of some targets that were hidden by trash the first time due to sweep
direction. If there is any doubt whether a target is "good" or "bad" - DIG IT! If you do not dig
any junk at all, you are surely passing up "good" finds too.
DETECTION TIPS
1 . This detector relies on motion to activate both the GB disc. and ATI notch circuitry. The
following is an example of how this works:
2. Interpreting different types of responses: With ATI notch you can tell a great deal about
a target just by the sound of the audio tone. As an example, when notching out certain pull
tabs, you can expect the following results:
Summary of Contents for Turbo
Page 8: ......
