MINELAB GPX-4500
New GPX-4500 Features
NEW TIMINGS so the GPX-4500 is even more
versatile. Users of the GPX-4000 have
learnt just how valuable it is to have a range of timings
available, to optimise the performance of the detector in
various conditions. The GPX-4500 introduces two new timings,
Enhance & Sharp, in addition to the four found on the
previous model. The new Enhance timing is a powerful
feature, similar to the Sensitive Smooth timing, but
provides an improvement in the depth and signal response on
small and large targets alike.
The Sharp timing is more suited to the quieter soils and
provides the most powerful detection field of all the
Soil/Timing options. The Sharp timing can also be used as an
aid to pin-pointing faint signals. Increase in Audio Gain.
The design of the amplifier and the use of the high-quality
low noise components ensure the signal response is clear and
crisp, without the added background hum of some boosters.
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NO-FUSS DETECTING WITH PRE-PROGRAMMED SEARCH
MODES
The GPX-4500 offers a number of pre-programmed search
models which allows you to start detecting right away! In
addition to the General and Deep search modes is the Custom
mode, which gives you access to four other search modes
specially selected for specific techniques. These are Hi
Mineral; Hi Trash; Patch and Test A modes. All 6 search
modes can be modified with your favourite settings, and the
Custom modes allow you to select your own mode name.
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New Functions
- GB OFF for neutral soils.
In addition to Normal and Specific ground balance options, a
third option is now available. In GB Off the ground balance
circuit is by-passed to give extra deep detection. This is a
useful feature in very benign low mineralised, or salt saturated
soils. This setting will also work well for treasure or relic
hunters in loam or sandy soils.
- BACKLIGHT, so you can read the LCD
menu in any light, day or night.
The backlight has adjustable time-out to preserve battery life.
- STABILIZER for the smoothers threshold.
The stabilizer function is a fine tuner that gives the operator
full control over the threshold stability. It is tied in with
the audio processing circuit, so should be used in conjunction
with the four Audio Type options. In quiet conditions, increase
the Stabilizer control and faint target signals will be more
obvious. Turing it down will provide you with a smoother
threshold, improving your ability to pick up the faintest of
signals.
- TARGET VOLUME
In addition to the Volume Limit control, which prevents signals
from being too loud, the new Target Volume allows you to
increase the strength of softer target signals. This is useful
for very windy conditions, for people suffering from hearing
loss, and to adjust the audio volume when using external
speakers. The Target Volume can also be used as an audio boost
in mild soils, and can be used to reduce or smooth out ground
noise signals in highly mineralised soils. This is a powerful
feature, and will work in conjunction with the Stabilizer
control, giving you the ultimate in fine tuning ability.
- IMPROVED DISCRIMINATION that gives you access to the
worst of trashy ground.
When detecting in a high-trash area like a mining site or a
campground, the Iron Reject function allows the operator to set
the desired level of discrimination, from cautious to
aggressive. This combined with the specially programmed Hi Trash
search mode makes areas of extreme junk well worth a search.
Also great for the specialist Relic and Jewellery hunter who
demands the best, and wants to recover the smallest and deepest
targets invisible to most treasure detectors.
- BUILT-IN AMPLIFIER so you can hear soft
target signals from deeper nuggets, more easily.The newly
designed Li-lon battery pack now has an audio amplifier built
in, allowing you to use an external speaker, without the need
for any external booster. Its uses smart circuitry, which
automatically senses a correctly wired speaker, and applies an
increase in Audio Gain. The design of the amplifier and the use
of high-quality low noise components ensure the signal response
is clear and crisp, without the added background hum of some
boosters.
 SETA
Technology gives precision timings
The GPX-4500 now offers a total of six Timing options to suit
different detecting conditions. Previous GP series detectors
operated using one universal alignment suitable to all their
timings. With so many different timing options packed into the
GPX-4500, it was no longer possible to rely on a single alignment,
and so the Smart Electronic Timing Alignment or SETA concept was
born.
SETA automatically sets a precise alignment for each Timing
option. What this means is that in each timing, noises caused by
magnetic interference will be minimised, the threshold will remain
more stable, and signals from highly magnetic rocks will be
significantly reduced. This allows you to harness all the power of
the GPX-4500, and operate it more efficiently under different
conditions.
A bonus of SETA technology is that the ground balance setting of
each timing is also saved, so if you are switching between timings
when investigating a suspected target signal, you wont have to
continually re-ground balance the detector.
New Lithium-Ion Battery
For a mere 768g, Minelab's newest lightweight Lithium-Ion
Batteries hold their charge at almost full power for hours more than
conventional batteries and will operate the GPX-4500 for up to 12
hours. The intelligent charging system is self-contained in the
robust yet lightweight aluminium housing, offering very rapid
recharge times of 4 to 5 hours, from either the 12v vehicle or Mains
adaptor. Best of all, the available power of the battery can be
tested at any time through the LCD display on the detector.
Improved Battery Harness
Included with the GPX-4500 is a new and improved battery harness,
now with thicker straps and a reinforced padded belt, for improved
support and a more comfortable fit.
Modified Endcaps
The GPX-4500 with Modified Endcaps, now allows for full control
box adjustability, to improve balance when using smaller or larger
coils.
Heavy Duty Power Cable
Designed to handle the rigours of the goldfields, the GPX-4500 is
supplied with a longer power cable, a thicker outer sheath and over-moulded
plugs.
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