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nugget hunter nz

Gpz Ferrite Gb Vs No Ferrite Gb Question X Coil

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So my gpz turned up on Friday and I'm super loving it and my 10"x-coil should be here Wednesday, as soon as I got it out the box I grabbed my we test gold ranging from 0.025 to 1.71 gram and shot out to my we test area that happens to be gravel pit in known gold area.. I found for my area in NZ I was geting the best depth and response on general and high yield with audio smoothing off.. I had a play with the ferrite ring with ground balancing then factory reset and ground balance with no ferrite ring.. So my question is does the ferrite ring gb affect depth and sensitivity at all in low to medium ground. What I noticed was our soil and were I hunt in creek beds you hit pockets of high black sand then less etc. I didn't realy notice any difference in performance but I do think that the ferrite gb did run quieter in the ground over all. Does anyone have any tests or input on ferrite balancing vs no ferrite? IMG_20200203_221651.thumb.jpg.b25df8b01b7a19e163300870331c3b14.jpg

I plan to get out this weekend for my first hunt with the 10 xcoil all going to plan. So will be sure to put up a link for the YouTube video when made and my finds if any lol I'm checking out new spot 

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I suggest that when changing coils you do use the ferrite at least for the first time after a coil change.

Seeing you detector is second hand and still has the original and was quite possibly ferrite balanced  by the previous owner, maybe. then the machine would have had some memory locked in until you use the quick track button.

If you use the quick track button without the ferrite, when finished ground balancing, just for interest put the ferrite down and sweep over it without using the quick track button, this will tell you if you need to use the ferrite or not.

Do this first with the GPZ14 coil and the after you change coils do the same procedure again and you will have your answer.

I know there are plenty that don't use the ferrite and that is fine, but your question was do I need to, the only way you will know is to try this.

cheers dave

 

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  I'll give you folks my method of ground balancing with the ferrite. It works well for me but maybe not for everyone. Start by setting the ferrite ring on the ground where you are certain there are no targets. Stand the ferrite on edge and orient it North and South  (Australians and New Zelanders may have to orient it South to North). Step away from the ferrite a few feet and ground balance the detector. Now your ready to go find gold! Don't forget to pick up your ferrite ring at the end of the day. I would love to have anyone come here and demonstrate that ground balancing with the ferrite ring in this area makes any significant improvement.

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I always used the ferrite but I never thought it made any significant difference in my detecting in Nevada or California. So I agree with your observation on that klunker. If I had no ferrite available it would not bother me a bit for detecting around here. Note I am not advising people not use the ferrite, just relaying my personal experience. If I was going out tomorrow I would still use the ferrite, especially with the X Coil, which by nearly all accounts is more reactive to the ground in some locations.

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Klunker

you will never know what you missed because you did not follow the directions.....

but that is true if you do follow the directions!

whatever works

fred

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I used the ring on my first time using my GPZ a couple of days ago with the same 10" X-coil you're about to get.  I just did the quick start that did the noise cancel then the ferrite balance.  It only took one sweep over the ferrite to quiet it down and by 2 sweeps I didn't hear it.  I kept going until it told me to stop and it did a Tick saying OK.  I'd only tested the 14" genuine coil for about 30 minutes when I first got the GPZ before putting on the X-coil, I didn't do the ferrite on it so there was no ferrite balance to carry over I guess.

I'll do it because I can, and it takes 20 seconds so I see no point not doing it.   I'm sure it won't take me long to lose the ring though, then I'll stop doing it 🙂

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2 hours ago, phrunt said:

I used the ring on my first time using my GPZ a couple of days ago with the same 10" X-coil you're about to get.  I just did the quick start that did the noise cancel then the ferrite balance.  It only took one sweep over the ferrite to quiet it down and by 2 sweeps I didn't hear it.  I kept going until it told me to stop and it did a Tick saying OK.  I'd only tested the 14" genuine coil for about 30 minutes when I first got the GPZ before putting on the X-coil, I didn't do the ferrite on it so there was no ferrite balance to carry over I guess.

I'll do it because I can, and it takes 20 seconds so I see no point not doing it.   I'm sure it won't take me long to lose the ring though, then I'll stop doing it 🙂

Yea that was my first thought was man I'm guna loose this in no time 😂 maybe I'll make we clip for it on my pack 

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On 2/4/2020 at 4:30 AM, phrunt said:

............I kept going until it told me to stop and it did a Tick saying OK.  I'd only tested the 14" genuine coil for about 30 minutes when I first got the GPZ before putting on the X-coil, I didn't do the ferrite on it so there was no ferrite balance to carry over I guess.

440BB6C1-EA8D-4E38-A4DF-BEB385AE5FE6.thumb.jpeg.375720bc6e5a6665a2556a3287d93f6e.jpeg

There is no tick or any other sort of indication associated with X balance, the onscreen video when Quick-Trak is triggered is a GUIDE only. When we trigger Quick-Trak the Guide comes up while the QT button is pressed, release the button the Guide goes away, there is no time frame on this and there is no tick when X balance is completed. You can turn Guides off in the Menu.

If you go into the Ground Balance menu and go from Auto to Semi-Auto a GUIDE will come up recommending a Ferrite Balance be performed, this is logical because the detector requires you to perform a Ferrite balance manually now via Quick-Trak because it is in semi-auto mode, the same goes when you go from Manual to Semi-auto, to avoid the hassle of having to back arrow out of the Guide screen or triggering the Quick-Trak button (undesirable if your X balance is already good) configure the User button to the GB menu to be able to quickly change the GB modes, no Guide is triggered when go into the Menu this way.

If the Ferrite was not actually needed why then would there be so much emphasis on its use within the Menu systems of the GPZ? Not using the Ferrite is akin to digging a deep target one day and finding out it was trash so a week later in a totally different location you decide to not dig a deep target based on the previous experience. I cannot really tell if X is present other than vague impressions based on detector behaviour, however if X is present then it WILL affect performance IF the Ferrite balance isn’t correct. 

Lastly as I have said many times before a changing/shifting Ferrite balance has nothing to do with the ground changing except you’ll hear X if the Ferrite balance is out, then spurious depth reducing noises will intrude into the target signal of the detector. X signal only affects the audio if the balance is incorrect, X balance via the Ferrite is directly associated with the temperature of the electronics, so if you perform a Ferrite balance early on a cold morning and then the detector electronics and day warm up the Ferrite balance will then be incorrect (especially in winter) for the given temperature,  as such noise will be introduced into the audio which will then compete with target signals. IMHO being blasé about X balance is not an option especially when you consider it is so easy to do. 

JP

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Thanks JP. I do intend to use my yellow ring.  It must be the guide that is confusing me there, I am sure my the quick start gives a tick after I've done the ferrite balance, maybe it's just associated with the guide. I keep waving over the ring until the quick start procedure automatically stops me doing it and it gives an indication it's done.  I'll try again later today and video what I'm seeing so I can show it. I'm not bringing up the balance by changing modes but by doing the Quick Start.  I've only used my GPZ twice so I'm very much a beginner on it 🙂

All I know is I can pass the coil over the little yellow ferrite ring and there is no noise from it after a sweep or two during that process, then it's not seeing the ring if I swing over it any time after doing that during normal detecting. 

Unfortunately we've had a bit of a natural disaster in my area the past two days with intense rain that's now caused some pretty bad flooding, entire towns near me have had to evacuate while their homes flood.  My town held out well even though I'm right on the river the river didn't get us although it was quite scary watching it, our house was high enough above the river to be safe, not all in my town were as lucky.  Because of this I can't get far enough out of town to go test my GPZ and film this as all the roads are closed with the flooding and it just doesn't work around my house due to the EMI.

flooding.jpg.7a33b7059194912a2ec74bf9fbe764b3.jpg

This is a helicopter snap of the flooding around nearby areas.

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