Gold Rat Metal Detectors is located 6/50 Freda Street Upper Mount Gravatt. This is the only store to stock Metal Detectors. Gold Rat Engineering is located 4/16 Redcliffe Gardens Drive Clontarf This is where you will see the largest range of your highbankers, sluices and accessories

News

Blog Menu

Choosing the right Metal Detector

Choosing the right Metal Detector

When starting out, choosing the right metal detector can be hard!

With so much good and misinformation out there its hard to navigate the world of metal detectors we are going to dive in and talk about a few options.

First of all when considering buying your first metal detector its important to know what your primary target is, is it native Gold? Coins, relics? all of the above?

Do you want to detect in the creeks, rivers and beaches?

These are just some not all of the questions we ask at Gold rat Metal Detectors to ensure were giving you the best advice to meet your goals.

Now with all that said alot of customers want a "do it all metal detector" and that's fine there are some really good options in the Minelab range that can tick that box.

For example the Minelab Equinox range from 800-900 models have four search modes, Park, beach, Field and Gold Field. These modes are optimized out of the box for their said zones and once you learn the machines little differences you'll find the equinox range to be a great all rounder.

Given the Equinox range would have to be one of the most sold coin and relic metal detectors sold throughout the world, with that comes awesome aftermarket accessories.

There are compact shafts, coils you name it for the equinox range that make it just a little bit more customizable and a really great detector for all.

If you don't need that gold mode then the equinox 600-700 range are awesome and a better price point to get you into the market.

There's a slight trade off with discrimination customization but outside of that the 600-700 equinox machines are an awesome first metal detector.

There is another new model that's a leap above the equinox and it offers 2d Visualization for ferrous and non ferrous targets (magnetic - non magnetic).

The manticore is very new to the market and over the coming year were going to see just how powerful this machine is we wont go deep into the Manticore here because i consider this an advanced machine.

If you're after just a gold specific machine and not really going after coins and relics the gold monster is a beast! now being VLF technology there's a learning curve but in the right situation that gold monster can produce really good results. There's a few really good VLF Gold Specific machines on the market were going to need a whole other article for that.

Well discuss more about how and where a gold monster really performs in another post. lets look at all the models available.

Before going too deep into gold lets talk about waterproof.

The equinox range, CTX 3030, Manticore and Excalibur all offer fully submersible metal detecting capabilities.

These range from 3 to 60 meters in submercibility.... is that a word? i'm going to run with it. The Excaliber is really the deep sea beast here and with that comes a pretty basic machine. Whereas your CTX 3030 has multiple frequencies and the equinox range has multi-iq (simultaneous frequencies) these differences can make a big difference depending on what your primary target is.

The CTX has a heap or power and some amazing GPS features with discrimination visualization similar but not the same as the manticore, there are also quite a few hand held metal detectors on the market small like a pin pointer these are made by Nokta and are called the pulse dive range. 

So by now you should have a pretty good idea where these range of detectors fall in capabilty these metal detectors mentioned above are for the most part VLF (very low frequency) technology, were going to dive into Pulse induction.

Pulse induction metal detectors are the benchmark of innovation in Gold Specific metal detecting, that is if you are really serious about becoming a prospector and want to be able to pull native gold out of highly mineralised soils consistently and effectively then a pulse induction metal detector will get that gold!

This is not to say VLF's wont pull gold they will but Pulse induction (well now refer to this as a PI Machine.

PI machines can get a very accurate look into the soil matrix and discount the ground noise from the returning signal from your coil, this means even the smallest flake of gold can be detected with the right coil combo on a pulse induction machine, PI will also punch alot deeper.

There's alot more complexity to it than that but for now you need to understand the effectiveness scales is 1-1 VLF-PI its more like 1-11 or 1-100 in some situations. well dive into that much deeper another time.

The range in PI machines start at an SDC2300 which is absolute beast of a metal detector, its rugged and compact, super easy to use and completely waterproof yep I'm talking about 3 meters fully submersible. You can literally put your snorkel on and hit that creek looking for gold in cracks. these retail around the $4300 mark.

What really makes this metal detector one of the most popular units on the market is its size once folded down, it fits in a backpack so easily its one of a kind there is nothing like it on the market.

Next we have the GPX 5000 which has more options, coils, boosters etc than any other detector on the market, its a weapon of a PI machine that will always have a place but as minelab develop new machines its fallen behind in favor for a more simplistic user menu like the GPX 6000 or GPZ 7000 machines.

The GPX 5000 is still a really great metal detector that will get you gold and for around $5000 its very affordable.

We offer side mount battery kits for these that bring the weight down and remove the need to harness mount your battery reducing wires etc to make this machine even easier to use.

Next in line you have the current most popular  PI machine the GPX 6000, this is definitely the easiest to use, turn on and go gold specific metal detector on the market! Hands down! There's only three things you can change on this machine, sensitivity, ground type and threshold its so easy.

Couple that will an awesome offering of coils, actually i have to say the 14 inch DD coil that comes with this detector is the best DD coil I've ever used near power lines it literally can run under extreme EMI. (electrical magnetic interference.

So out of the box you get two coils a 11" mono and 14" DD that gives you options to cover all ground.  The GPX 6000 retails for $7999 and is only available from "Certified Minelab Dealers" you can find your local certified Minelab dealer via Minelab's website here. 

At the top we have the GPZ 7000! The biggest and baddest Pulse induction gold metal detector on the market. If you run a lease or mine gold for a living you're running a GPZ 7000. The EMI stabilization alone of this machine can be the difference of being able to work on a day with a pending storm and putting tools down, the electronics are amazing.

The standard coil punches so deep while still being sensitive to sub grammers and flakes. Its one of the heaviest in the line up so you want to be aware of that when looking at these machines but minelab include a hardness and swing arm with the unit to balance that out.

Like with all metal detectors i encourage you to come in and pick up the models that you're looking at there's no feedback online you have to hold these in your hand to get a real understanding of the differences.

GPX 6000 SPEAKER AUDIO

26th Aug 2022


Minelab has identified infrequent cases where users hear audio feedback when using the internal speaker. Please refer to the product notice on our website by clicking on the link below.

https://www.minelab.com/support/product-notices?article=482551

Minelab have produced a hardware update that removes this effect. This update is present in all newly manufactured GPX6000s.

In the event you have a production standard without this update and have experienced audio feedback when using the speaker please follow the procedure below in Australia to arrange for this update to be completed on your detector.

Please note for maximum performance headphones should be used. Headphone performance is unaffected with this update.

Australia

  1. Contact Minelab head office via phone or email. 

service@minelab.com.au 

(08) 8238 0888

You will need the following information ready to give to Minelab staff:

-    Full name
-    Contact phone number
-    Return postal address
-    Detector serial number (located on the bottom of the control box)

  1.  Minelab staff will then determine if your detector already has the hardware update.
  2.  To have your detector updated you will need to send your detector control box to the following address.

Minelab Service
2 Second Avenue
Mawson Lakes
South Australia
5095

GPX 6000 Speaker Use

GPX 6000 Speaker Use

The GPX 6000 is a high performance, lightweight, and easy-to-use gold detector. Audio is generated and rendered in one of three ways:

  • The internal speaker
  • Wired headphones
  • Wireless Bluetooth apX Low Latency headphones. (Standard Bluetooth audio is also available

Because the detector is generally used in an outdoor, open environment, the speaker plays the audio with a high volume to account for wind and other ambient noises. Due to the highly sensitive nature of the GPX6000, in some circumstances the speaker itself may introduce detector noise that sounds like interference.

If you experience this situation, Minelab recommends first performing a Noise Cancel by holding the coil still and about 10 cm (4”) above, and parallel, to the ground. Press the Noise Cancel button on the control panel and wait for about 5 seconds until the confirmation tone signals the end of the Noise Cancel procedure. This will cause the detector to operate on a different frequency where the noise should not persist. Typically, the speaker is best to use when digging to locate a nugget.

Minelab recommends for best detecting results that operators use either the wireless or wired headphones which will not have this problem and will also suppress any environmental noise and ensure the Operator detects the smallest and deepest of nuggets.
 
Should the problem persist, please contact your Dealer.

article source https://www.minelab.com/support/product-notices?article=482551

Minelab Manticore discussion

Minelab Manticore discussion

Article Credit and source

What are the Minelab Manticore Features? My Notes

This article is my notes on the Manticore Features. We compare the Equinox and XP Deus 2 vs the Manticore in terms of how the features compare. 

Anything I did not make note on I did so because it’s either older tech, or relatively straightforward. The Manticore definitely has some intriguing new features. However, until I get it in my hands and test the accessibility and versatility of these features I cannot definitively say whether they are actually helpful or not. 

The Manticore Frequencies

Multi-IQ+, 5kHz, 10kHz, 15kHz, 20kHz, 40kHz

It is strange that Minelab would not make a 4kHz feature for the Manticore seeing how popular it was on the Equinox. Or why Minelab didn’t allow for variable single frequencies like the XP Deus offers. 

Noise Cancel

Auto, Continuous Auto, Manual (-9 to +9). Continuous Auto will be interesting to hear more about. Minelab is claiming that the Manticore is very EMI-Resistant.

Ground Balance

Auto, Manual, Tracking

Ground Balancing the Manticore might not do you any good says the lead Minelab engineer. He states that ground balance may help you get a little more raw depth, but at that depth you don't even know what your target is (fringe depth). Ground balance he says does not help with discrimination though. 

Sensitivity 

1-35

Target ID (Identification)

0–99 with “Ferrous Indication”. This is an interesting change. As with the XP Deus 2, iron is not represented by negative numbers like it is on the Equinox. This can be extremely confusing because iron is coming in as a positive number unless it is somehow changed; either by notching it out, or, by changing the ‘pitch’ or the sound frequency of particular iron segments. 

The problem then arises: What TID numbers actually represent the scale of iron? Well, when I began with the XP Deus 2, I had to test many pieces of iron until I had nailed down (pun intended) the answer. With the XP Deus 2 I changed the pitch of TID numbers 1-10 to SOUND like iron– again, changing the sound frequency/pitch. 

I did not want to actually discriminate out iron completely by notching it out– because any experienced detectorist knows you need to be able to hear your iron to better discern whether what you have under your coil is a iron-false signal (iron halo) or a deep non-ferrous target (specifically silver). 

Next, I turn my iron volume down so I can hear it, while keeping my non-ferrous TID numbers (11-99) at a normal volume. Turning my iron down allows me to hear the iron without it blowing my ears out all day. 

Will the new “Ferrous Indication” feature be a new feature that helps with this issue? The Manticore does come with Ferrous Volume (0-25), and Ferrous Pitch (0-50) features. 

Ferrous Limits is just the new term for Iron Bias

Upper 0-14 | Lower 0-9

Ferrous limits Custom

1-4

 

The Manticore Iron Horseshoe Dilemma

Here is the strange thing: There is a horseshoe button on the Manticore…. 

When you press the Horseshoe button on the Equinox, you either hear your iron or you don’t. Pressing the button single handedly wipes out all iron tones and “NEGATIVE” TID numbers, or it makes them audible again. 

What TID numbers does the Horseshoe button represent on the Manticore then? 

As convenient as the Horseshoe button is, it worries me that Minelab has some predetermined ‘positive’ TID numbers they believe iron represents. My point being– I don’t like companies telling me what numbers to discriminate out. 

The Benefits of a Larger TID (Target Identification) Scale

The larger TID scale on the XP Deus 2 is a blessing in disguise. Here’s why: 

The Equinox has a very compressed TID scale of only 1-39. Until I started using the XP Deus 2, I didn’t realize how inconvenient this was. 

Having a smaller TID scale forces the detector to compress alloys closer together. So in other words, small junk foil will ring up the same as gold jewelry. 

However, watching elaborate gold tests along with my own tests on the Deus 2 revealed that gold falls much higher with a larger TID scale (TID 30-40 and above!). Whereas small aluminum mostly falls below TID 30-40. 

On the Equinox you will dig gold rings down to TID 2–10! 

Think of the incredible space you have now to filter out trash that wasn’t there before with a compressed TID Scale. That is exactly why Minelab increased those TID numbers from 0-99 on the Manticore. 

Now, of course you are going to dig some large aluminum and pull-tabs, but I even have some secrets for discriminating some of that without notching anything out!

Manticore 2-Dimensional TID Map

The Manticore 2-D simulated TID map has target trace, and reportedly gives you an actual ‘shape’ of your targets. 

Now, for anyone who used the CTX 3030, you would know target trace is nothing new. Target trace was a color-coated animated feature that would show you multiple targets on the screen at once. Non-ferrous targets would emerge as more solid, whereas ferrous targets would smear across the screen. 

This is very similar to the XP Deus XY screen in that non-ferrous targets represent more solid lines, and ferrous targets are represented as more chaotic lines. 

Both the CTX and the Deus 2 features are simply different methods of giving you new information about your target. 

The question is: has Minelab changed anything about this feature? To be honest, the CTX and Deus 2 features lose accuracy at greater depths. It will be interesting to see if Minelab has corrected this. 

Target Tones

1, 2, 5 Tone | 1, 2, 5, Region All-Tones. 

This is an EXTREMELY disappointing feature. I would expect Minelab to include 3 and 4 tones. This feature essentially means I have to go in and change the tone breaks in 5-tone like I do in the Equinox to make my machine either a 3 or 4 tone machine. “Region All-Tones” has not been described yet so we need more info on that. 

Target Volume

0-25

Target Pitch

1-50 This is different from the XP Deus 2 so it will be interesting to see what frequencies 1-50 actually represent. 

Audio Themes

Normal, Enhanced, Continuous Pitch (for the gold mode)

Volume Profiles

Simple (like the Vanquish), Medium (Like the Equinox), Rich, Overdrive, Enhanced (Suppresses EMI & Ground Chatter)

Some of these terms are relatively new and will need more explaining by Minelab. 

Threshold Level

0-25

Threshold Pitch

0-50

Recovery Speed (Minelab added 0 on the Manticore for those who want to go super deep and slow)

0-8

WE ARE TAKING MINELAB MANTICORE PRE-ORDERS HERE!