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Ferrite Ring 8 Years Later


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Can't swear it ever made a difference in my use in the U.S., yet I always used it as part of my tune up routine. Maybe it helped and I simply don't know it. Long story short, it can't hurt, might help, why not? You want to own the most expensive nugget hunter ever sold, best performance possible.... but that one little thing is just too much?

You want one Art, I have an official Minelab Ferrite Ring, appropriate blessings applied, that I will mail you for free. Just PM me your address.

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11 minutes ago, Steve Herschbach said:

You want one Art, I have an official Minelab Ferrite Ring, appropriate blessings applied, that I will mail you for free. Just PM me your address.

Art when it arrives you have to move it from the packaging like we move guns at crime scenes on TV eh, with a pen into a plastic baggy or it will lose the positive energy Steve joo joo 🙂

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10 hours ago, geof_junk said:

JP does that me if you don't have the ferric ring available switching from Semi-Auto to Auto for a few minutes and back to Semi-Auto when out of whack (or every now an then) should do just as good of job as using the ferric ring? 

If you have no Ferrite then do the octopus dance in Auto with the QT button held in then go to Semi-Auto to lock the calibration on whatever the detector has come up with.

In low X ground it’s obviously not a big deal but sometimes that is a hard thing to do. In some cases a very poor X calibration can sound like rapid fire EMI as the coil is moved, it introduces noise to the audio that does not need to be there, I personally prefer no noise of any kind from any source that can be removed through a simple action. 

 

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5 hours ago, Steve Herschbach said:

Can't swear it ever made a difference in my use in the U.S., yet I always used it as part of my tune up routine. Maybe it helped and I simply don't know it. Long story short, it can't hurt, might help, why not? You want to own the most expensive nugget hunter ever sold, best performance possible.... but that one little thing is just too much?

You want one Art, I have an official Minelab Ferrite Ring, appropriate blessings applied, that I will mail you for free. Just PM me your address.

Steve, thank you appreciate the offer, I’m no longer a 7000 owner this thread was more for the buyer of my 7000, I sent him one of docs and he on his own bought one I’m not sure what one he ordered? But thank you

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8 hours ago, BrokeInBendigo said:

I can "balance" the ferrite out in Difficult using the QT button but cannot balance it out in Normal. I've done the octopus (as described by @Jonathan Porter ) manoeuvre for 1 to 2 minutes over the ferrite, still hear it. Especially if the ground is hot. Am I doing it wrong?

What coil do you have on your machine?

In some ground where there is a bit of saturation signal the round ferrite will channel that signal up itself magnifying it, this can sound like the Ferrite isn’t being balanced out but in fact it’s saturation signal, you cannot ground balance out saturation.

Best bet is to place the ferrite on top of a big rock (4 inches or so high) or put your ferrite on a stick and hold the coil away from the ground waving the ferrite under the coil over the windings till the noise goes (with QT depressed of course), then bring the coil to the ground and slowly pump the coil till the Semi-Auto GB balances out the ground signal. (The GB for the ground will be out because when the coil is held in air you are balancing to nothing as you calibrate to the ferrite).

If there is only a small signal off the ferrite don’t worry about it, the key is to not have a LOUD target like signal on the Ferrite. General ground noise will cover any mild signals especially when using Normal.

The Most sensitive mode on the 7000 to the ferrite is High Yield Normal.

 

 

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2 minutes ago, Jonathan Porter said:

The Most sensitive mode on the 7000 to the ferrite is High Yield Normal.

Morning JP.  

Obviously this is all related to the 7000.  Does X signal affect a GPX of any model?  Is there any auto calibration happening in a GPX 6000?  
 

Cheers, NE.  

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No disrespect to the ferrite, my post was tung in cheek more about why we do things. Really good to know the in-depth reasons behind why they are essential in many situations and you’re the best to shed light on something many of us were confused on. As always I’m profoundly honored and appreciate anytime you share your knowledge without it there would be a giant hole that would be tough to fill… and we hate open holes, lol.

thank you for taking time out of you busy schedule, when you could be filling your poke.

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I'm still trying to figure out what the hell X is after 8 years of seeing JP talk about it. 🤪 Now XXXX, in a can, yea... but X? NO... Valley Girl accent kicks in.

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1 hour ago, Jonathan Porter said:

What coil do you have on your machine?

In some ground where there is a bit of saturation signal the round ferrite will channel that signal up itself magnifying it, this can sound like the Ferrite isn’t being balanced out but in fact it’s saturation signal, you cannot ground balance out saturation.

Best bet is to place the ferrite on top of a big rock (4 inches or so high) or put your ferrite on a stick and hold the coil away from the ground waving the ferrite under the coil over the windings till the noise goes (with QT depressed of course), then bring the coil to the ground and slowly pump the coil till the Semi-Auto GB balances out the ground signal. (The GB for the ground will be out because when the coil is held in air you are balancing to nothing as you calibrate to the ferrite).

If there is only a small signal off the ferrite don’t worry about it, the key is to not have a LOUD target like signal on the Ferrite. General ground noise will cover any mild signals especially when using Normal.

The Most sensitive mode on the 7000 to the ferrite is High Yield Normal.

 

 

Thanks JP.
 

I have a stock 14” and month-old 17” CC x-coil, believe it is bundle wound (edit: tis spiral, thanks Simon). 

Out bush in reefy country with a lot of ironstone or red mudstone type bedrock I often get a fairly loud signal on the ferrite but on alluvial gravels or paddocks it’s less intense.

I’ve been running auto but understand the advantage of semi auto - I’ll try that and your suggestion about elevating the ferrite today. 

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