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.
 

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.

MInelab GPX-4500 Features
Length	Maximum	1300mm
	Minimum	1100mm
Weight	Complete with 11" coil (excluding battery & accessories)	2400g
Configuration		Shaftmount: 2-piece shaft
Technology		Dual Voltage (DVT), Multi-Period Sensing (MPS) and Smart Electronic Timing Alignment (SETA)
Transmission		Bi-level Pulse Induction
Search System		Motion Detector
Headphones		Supplied 1/4" socket Koss; 100ohm
Coil (Standard)		11" Double D
Battery
Lithium Ion		9.2ah: 8.0v
Weight		768g
Battery running time		Up to 12 hours
Battery Charging System		Mains & 12v vehicle Plug Packs
Controls
On / Off		Spring loaded toggle
Factory Preset Restore		Hold On / Off
Threshold		1 turn control
Search Modes		Custom / General / Deep
	Custom Mode	Hi Mineral / Hi Trash / Patch / Test A
Soil / Timings		Sensitive / Normal / Salt
	Special Timings	Salt-Coarse / Sensitive Extra Sensitive Smooth / Sharp
Backlight		Off, 1-10
Ground Balance		Fixed / Tracking
Ground Balance Speed		Slow / Medium / Fast
Ground Balance Type		General / Specific / GB Off
Coil / Rx		Double-D / Mono / Cancel
(E.M) Tuning		Automatic (Push Button)
Manual Tuning		0 - 255
Volume Limit		1 - 20
Audio Tone		1 - 100
Signal Peak		1 - 20
Iron Reject		Off (All Metal) / 1 - 10
Audio Type		Quiet / Normal / Deep / Boost
Rx Gain		1 - 15
Motion		V-Slow / Slow / Medium / Fast
Response		Normal / Inverted
	Stabilizer	1 - 20
Optional Accessories
Commander Coils		8", 11", 15" x 12" & 18" Monoloop 10" x 5", 15" & 18" Double D
Warranty
Control Box		2 years
Coil		1 year

Minelab Commander Search Coils 

15" x 12" Semi-Elliptical Double D Search Coil - Greater depth and more ground coverage than the 11" DD, It provides stable operation in all soils. This is a great coil for all-round use in highly variable soils and a lighter, more maneuverable alternative to the 18" DD when seeking out large nuggets in heavy mineralization. Its semi-elliptical design provides impressive sensitivity for its size. List Price $379.44; Sale Price $344.94 - Works on SD, GP, or GPX	Minelab 15" x 12" DD Commander Coil - $344.94
15" x 12" Semi-Elliptical Monoloop Search Coil - On larger nuggets this coil has better depth than the 11" Monoloop and the 15x12" DD, and it is very sensitive for its size. It is great for searching open areas for new patches and when seeking out deeper nuggets in areas that are too vegetated to allow effective use of the 18" monoloop. It is an extremely stable coil which runs smooth in all but the worst soil conditions. This coil will become a favorite for many operators.                List Price $344.94 Sale Price $321.94 - Works on SD, GP, or GPX	Minelab 15" x 12" Mono Commander Coil - $321.94
10" x 5" Elliptical Double D Search Coil - This is the coil that every prospector should carry because of its endless versatility. Great in thick scrub, heavy mineralization and high trash; it has superb sensitivity and surprising depth for such a small coil. It is also great for pinpointing deep targets found with one of the larger coils and is extremely stable in all soils. List Price $287.44; Sale Price $229.94 - Works on SD, GP, or GPX	Minelab 10" x 5" DD Commander Coil - $229.94
8" Round Monoloop Search Coil - The most sensitive of the Commanders, the 8" round provides the best depth on sub-gram nuggets in light to moderately mineralized soils. A popular coil for use on old diggings, it is also a great coil for detecti g in heavy vegetation. List Price $279.39; Sale Price $229.94 - Works on SD, GP, or GPX	Minelab 8" Round Mono Commander Coil - $229.94
11" Round Monoloop Search Coil - A lighter, more sensitive and deeper seeking coil compared to its Double D brother, the 11" Monoloop is a brilliant coil for almost any situation. The 2nd most sensitive Commander monoloop, it is also one of the most stable monoloop coils available and will provide a smooth threshold in most soil types. List Price $310.44; Sale Price $287.44	Minelab 11" Round Mono Commander Coil - $287.44
18" Round Monoloop Search Coil - Superb depth and high sensitivity in low to medium mineralization. This coil will find targets in heavily worked areas where other operators have given up. List Price $402.44; Sale Price $379.44	Minelab 18" Round Mono Commander Coil - $379.44
18" Double D Search Coil - A serious coil for the serious operator! The 18" DD punches deep through heavy mineralization, while running smooth to allow you to hear those mellow, deep nugget responses. List Price $459.94; Sale Price $402.44	Minelab 18" Round DD Commander Coil - $402.44

Minelab Commander Series Accessory Search Coils

A completely NEW line of PREMIUM high performance coils

- exclusively designed for MINELAB GP and SD Series Gold detectors!

Precision designed, engineered, built and tested by Minelab

The right coil for the right job.

 

 

The technology used in Minelab's gold detectors has become more and more advanced with time. Ensuring that our coils have kept pace with those advances in technology has been equally important to Minelab, so that our customers can be assured that their coils are the best match for their detector investment. Minelab Commander series coils have been designed by the Minelab team of scientists & engineers, specifically to match the requirements of Minelab technology and to give optimum performance.

All the Commander series coils are made using the very best quality components like gold plated plugs, low-noise shielded cable and multi-strand Litz wire. Litz wire, is made of numerous, very fine individually insulated strands. The insulation prevents the windings from creating eddy currents and thereby "seeing themselves" and transmitting a false signal. Litz wire has an advantage over other wire because its high surface area gives it a greater transmission ability. This translates into a more powerful, energy efficient coil for its size.

Commander coils are well made, robust coils, designed to cope with the rugged conditions of the gold fields. Designed to get the most out of your GP series detector, the following coils will also enhance the performance of your SD series machine.

• Coil Size & Depth - A larger coil will typically find targets hidden deeper in the ground, but they can be less sensitive to smaller targets. A smaller coil is typically more sensitive to small targets, but does not go as deep as a larger coil.
• Mineralization - A Monoloop coil will often have improved performance over a Double D coil but can be more difficult to ground balance and therefore possibly more noisy. A Double D coil is often more stable in heavily mineralized areas.
• Terrain & Vegetation - A larger coil requires more open ground whereas a smaller coil can be easier to guide in tight bush or rough terrain. Obviously a smaller coil is also lighter weight than a larger coil.
• Discrimination - In areas where discrimination is required, a Double D coil will provide a more accurate ID. In high trash concentrations, a smaller coil is preferable.
• Search Pattern - A Double D coil will typically provide a 'blade-like' detection pattern from the toe to the heel of the coil, which gives excellent ground coverage. A Monoloop coil has a detection field that is typically cone shaped, which requires overlapping of sweeps to ensure thorough ground coverage.

Gold Through Technology

In designing the range of Commander coils, Minelab's Product Development Department used the latest in computer imaging programs to create 3D maps of the performance and search pattern coverage of each of the coils. Shown below are a couple of typical mapping diagrams quite clearly demonstrating the blade like search pattern of a Double D coil and the cone shaped pattern of a Monoloop coil.

What's the Difference?
Double D coils provide a blade-like detection pattern for accurate ground coverage. They handle heavy and variable mineralization better than monoloop coils and they allow the use of the Coil switch found on the GP series. Pinpointing is done along the center of the coil. Monoloop coils are more sensitive and deeper seeking than an equivalent sized DD, but can become erratic in very mineralized soils. The detection field is cone shaped, so it requires overlapping sweeps to ensure thorough ground coverage at maximum depth. Very sensitive around the outer rim, the coil can be tilted on edge when pinpointing tiny targets.

Choosing the Right Coil for the Job

There are five main things that you should consider when deciding which coil is best for your terrain and target.

• Coil Size & Depth - A larger coil will typically find targets hidden deeper in the ground, but they can be less sensitive to smaller targets. A smaller coil is typically more sensitive to small targets, but does not go as deep as a larger coil.
• Mineralization - A Monoloop coil will often have improved performance over a Double D coil but can be more difficult to ground balance and therefore possibly more noisy. A Double D coil is often more stable in heavily mineralized areas.
• Terrain & Vegetation - A larger coil requires more open ground whereas a smaller coil can be easier to guide in tight bush or rough terrain. Obviously a smaller coil is also lighter weight than a larger coil.
• Discrimination - In areas where discrimination is required, a Double D coil will provide a more accurate ID. In high trash concentrations, a smaller coil is preferable.
• Search Pattern - A Double D coil will typically provide a 'blade-like' detection pattern from the toe to the heel of the coil, which gives excellent ground coverage. A Monoloop coil has a detection field that is typically cone shaped, which requires overlapping of sweeps to ensure thorough ground coverage.

Maximize the gold seeking power of your GP/SD Detector NOW!