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Chasing Stupidly Small Gold Continued And A Dramatic Rescue

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2 minutes ago, phrunt said:

so 1cm off the ground, pretty close to touching it.

Not really. It is 10mm above any gold & that can make a difference. I guess the height thing comes down to how rocky or uneven the ground is so that you can maintain an even sweep motion without bumping protruding rocks & stuff & you aren't having to keep lifting the coil up & over obstacles continually. The Zed coil does not like to be lifted & tilted without giving a little protest warble. That is how I remember the ML 14" coil anyway. Hence maintaining a clean motion sweep with precise coil control & keeping the coil as parallel to the ground as you can & no sudden tilting or lifting. If that requires a certain distance off the ground then I suppose that is what it is. But if I can scrub the ground that is what I will do.

JW 🤠 

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8 hours ago, PeterInSa said:

I wonder did I get the wrong info back when I purchased the 7K years ago, or when did the detecting method change.

When I had the Z I most gently rolled across the surface. It helped with weight support and also finding the tiddlers.  Where I detect I was able to do this.  

But, and I am sure JP will confirm or deny this, I am sure I read a thing from JP where he suggested running the Z coil 1-2 inches off the ground particularly in saturable ground.  I think the reasoning was that if the detector was simply unusable at ground level then being 2 inches closer to the gold was no advantage.  However, if by running 2 inches off the ground you could still detect then at least you were still in the game.  As always JP, feel free to correct me  👍

Edit - actually it was Steve H - half way down the first post.   https://www.detectorprospector.com/forums/topic/970-minelab-gpz-7000-a-super-vlf-saturable-soil-tips/

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In my memory of detector manuals, most wanted you to keep the coil off the ground and there are different heights per model of detector, but 2" was mentioned many times.  Now I know for a fact when my staff and I train customers, we want them to keep it as close to the ground as possible.  The reality of it is, the ground type/structure I am sweeping over.  If really rough ground with many rocks and cobbles, I'll keep the coil just above.  If it is smoother ground, I like to let the coil slide across the ground.  Now on occasion extremely hot ground is encountered and when GB'ing, I notice detector won't keep up, then I adjust the coil height to stay in the "happy medium".

Another issue I run into with the 7000 and others.  If it is really hot temperature outside and I don't want to wear headphones, then I'll lift the coil and set my bungee just above ground level, so I am not hearing the coil skid across the ground as the noise it makes does not allow me to hear the faintest of potential signals.  Most folks who know me, will tell you, I prefer to wear headphones when using a GPZ, as the coil is usually making noise as it scuffs the ground quite regularly.  

Now when using other machines or chasing bigger gold or new ground, my mind is more in a cruise mode trying to find the indicator nugget.  Then my coil is usually a little higher (1/2 to 1") off the ground.

Like others have said and I feel the same way.  In most ground I hunt with a 7, the 2" off is a loss of 2" in depth.  But in reality, just like settings and threshold level, there is no right and wrong, just more of a what do you feel comfortable with. If you are happy with your results, then I'm happy for you.

As for different coils and some other detector models?  I have had units, that could not even be used scuffing the ground because the detector and coil would make to much noise.  I myself attribute that to a bad coil.  The Fisher GB-2, small 6" ellip coil had had a change when they moved from Los Banos, CA to Texas and for about a year, the coils being made, had a high % bad coils.  I think I was on their shit list for a while, as I would send them back multiple coils telling them they were bad.  They would argue with me saying the tested just fine.  Now the coil has changed design, so that goes to show there was some issues, plus a few other things inside, but they have a handle on it now and those small gold grabber 6" ellip coils can be used on the ground.

Bottom line:  If you're not wearing out your coil cover, you are missing gold.

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7 hours ago, Gerry in Idaho said:

Bottom line:  If you're not wearing out your coil cover, you are missing gold.

I am on my second coil cover if that says anything (I am not out all that often until lately). I also remember JP recommending having the coil off the ground i.e. not scrubbing and there was a reason for it but I can't remember if it was to keep the detector from being oversaturated. JP?

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9 hours ago, Gerry in Idaho said:
9 hours ago, Gerry in Idaho said:

 

In my memory of detector manuals, most wanted you to keep the coil off the ground and there are different heights per model of detector, but 2" was mentioned many times.  Now I know for a fact when my staff and I train customers, we want them to keep it as close to the ground as possible.  The reality of it is, the ground type/structure I am sweeping over.  If really rough ground with many rocks and cobbles, I'll keep the coil just above.  If it is smoother ground, I like to let the coil slide across the ground.  Now on occasion extremely hot ground is encountered and when GB'ing, I notice detector won't keep up, then I adjust the coil height to stay in the "happy medium".

Another issue I run into with the 7000 and others.  If it is really hot temperature outside and I don't want to wear headphones, then I'll lift the coil and set my bungee just above ground level, so I am not hearing the coil skid across the ground as the noise it makes does not allow me to hear the faintest of potential signals.  Most folks who know me, will tell you, I prefer to wear headphones when using a GPZ, as the coil is usually making noise as it scuffs the ground quite regularly.  

Now when using other machines or chasing bigger gold or new ground, my mind is more in a cruise mode trying to find the indicator nugget.  Then my coil is usually a little higher (1/2 to 1") off the ground.

Like others have said and I feel the same way.  In most ground I hunt with a 7, the 2" off is a loss of 2" in depth.  But in reality, just like settings and threshold level, there is no right and wrong, just more of a what do you feel comfortable with. If you are happy with your results, then I'm happy for you.

As for different coils and some other detector models?  I have had units, that could not even be used scuffing the ground because the detector and coil would make to much noise.  I myself attribute that to a bad coil.  The Fisher GB-2, small 6" ellip coil had had a change when they moved from Los Banos, CA to Texas and for about a year, the coils being made, had a high % bad coils.  I think I was on their shit list for a while, as I would send them back multiple coils telling them they were bad.  They would argue with me saying the tested just fine.  Now the coil has changed design, so that goes to show there was some issues, plus a few other things inside, but they have a handle on it now and those small gold grabber 6" ellip coils can be used on the ground.

Bottom line:  If you're not wearing out your coil cover, you are missing gold.

So many very good relevant points in all of that Gerry. Very well put 👍 You & I must be peas in a pod they way we think & operate.

9 hours ago, Gerry in Idaho said:

I think I was on their shit list for a while,

Had to laugh at that 🤣 I love that little coil on the GB2. Lucky I got a "good" one first off.

9 hours ago, Gerry in Idaho said:

But in reality, just like settings and threshold level, there is no right and wrong, just more of a what do you feel comfortable with.

Couldn't agree any more with that comment. If you "think" you have the settings right for the ground you are detecting, & you will know, then you will be confident & Mentally ground balanced in your own head, then you are psychologically in the zone & in a very good position to have a good day.👍

9 hours ago, Gerry in Idaho said:

Bottom line:  If you're not wearing out your coil cover, you are missing gold.

That is a gem, & me to a tee. With my GP & GPX's The coil covers I went through the most were the coiltek little 10 x 5 joey mono & the Minelab 11" commander mono. I even went through a few of those coils themselves as they got a LOT of use, & I aren't hard on my coils, but they would become bump & very touch sensitive over time which ended up driving me nuts. The ML coil was the worst for me on that front. But I loved that coil.

With the Zed & its14" coil I was on to my 2nd skid plate & that was showing signs of wearing through. But that is what the skid plates are for & so I use them for scrubbing the ground whenever I can, which is often, to get as close to any gold as possible. I am on your page Gerry.🤠

Take care & best of luck out there

JW🤠   

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Hey friends, I might still have some really good footage of my friends and I pulling a kangaroo out of a shaft in 2006 . It was just north of laverton. I was detecting and I heard a ruckus in a shaft. I saw the roo so I went back to camp and got my Australian friend Steve. He made a lasso and pulled it out. It was quite an experience. The video I have is low quality but if I can get it to work and post it,  it’s worth seeing. Thanks for the post, it brought back some lost memories. Hope you all are doing well.

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On 4/3/2020 at 12:32 PM, Jonathan Porter said:

How close you can get the coil to the ground is determined by how much saturation signal is present.

Hi Jp, can you recommend settings for grounds that are plagued by high ground saturation? I usually reduce gain until the coil pumping keeps the threshold stable right above ground, but at times this means sensitivity of 6 or lower in HY/normal with the ML14 coil. Any other settings/tactics that can be beneficial without too much impacting performance? Thanks!

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To add, I can of course go to general/normal or HY/difficult, but was wondering if there is anything else that might help. Thanks.

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On 4/2/2020 at 6:58 PM, kiwijw said:

Not really. It is 10mm above any gold & that can make a difference. I guess the height thing comes down to how rocky or uneven the ground is so that you can maintain an even sweep motion without bumping protruding rocks & stuff & you aren't having to keep lifting the coil up & over obstacles continually. The Zed coil does not like to be lifted & tilted without giving a little protest warble. That is how I remember the ML 14" coil anyway. Hence maintaining a clean motion sweep with precise coil control & keeping the coil as parallel to the ground as you can & no sudden tilting or lifting. If that requires a certain distance off the ground then I suppose that is what it is. But if I can scrub the ground that is what I will do.

JW 🤠 

Hi guys, Came across this footage re getting the coil as close to the ground as you can to be as close to any gold as you can get. It is in Aussie, so I assume the ground isn't as mild as my ground is & so that has its own issues for him. He got past the rocky uneven ground by raking it so he could maintain a good low, scrubbing the ground, even motion sweep without the need to lift, tilt or bump the coil. It isn't a Zed but I would say a GPX 5000. He had already detected this ground prior to raking it, raking allowed him to get his coil on the ground. Note the VERY faint signals he is talking about & how slowly he sweeps over a "signal". He also ground balances quite often so I would say the ground was giving him a bit of grief. Enjoy & take it on board. You will find more gold.

JW 🤠

 

 

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