Aftermarket for GPZ

The suspense is killing me! Any further news?

Hi all, we have just been to mt crawford in adelaide hills for a couple hrs with couple other detector operators.Took the 18" and 10x9" to a spot that has given gold and has been hammered by most machines and combination of coils. Phasetech nenad knows this spot.  After switching on the 7000 with the 18" X coil and playing with settings a bit we pulled out a .87 scraggy nugget that consists of quartz and gold (guessing .4 gold content) in the first 10 minutes. Measured depth was just over 300mm. The 2 other 7000's could not pick up signal untill unearthed about 100mm.
Then we swapped to the 10 x 9" and detected for about 1 hr. The coil felt unbalanced on the machine cause it was so light. Will get used to that. We did dig a small shotgun pellet at about 5" deep that was on flat ground and had been missed. This small coil didnot like the up and down of the groung as area had been ripped for pines. On flat ground it was great but it groaned when passed over holes and depressions.
Saying that the gpx detectors fid that sometinmes to. I did not play around with settings to much either so given some more time we could probably sort that out. Both coils ran smooth otherwise. To say i am happy is an understatement. Will get a picture posted soon.
TG

Thanks for sharing TG. I am very keen to know how these coils perform!

300+mm depth on a 0.87g spec is impressive! It way exceeds what I think my GPZ 14 or 19 would do on that size. You said “19 X coil” I assume a typo, you meant 18”...

Me being picky again.
What coils were on the 2 GPZ 7000s when checking out this target?
Knowing the Gold Mode, Ground Type, Ground Smoothing and Gain settings would help me better assess things.

Thank you. All good stuff, please keep us informed, warts and all!
dave

Just quickly, the other 2 7000's both had 14" coils
Settings on my machine, high yield used, general would run nice as well but did not seem as crisp on air tests on setup. Tried deep on target signal before doing much scraping but signal was not quite as good as high yield, 
Ran in difficult as normal seemed to be not quite right.
Sensitivity, was decided 13 ok on ground
Volume,  ran at 18. I have always prefered to run that high.
Threshold, from memory 27, think that is factory preset level.
Volume limit, ran at 20. Also prefer to run high.
We all used the WM12 with no boosters or headphones, just listening to speaker in WM12
The 2 other 7000's were set at the operaters favorite settings,  not preset factory settings. They were both set up different so was very interesting to see results.
Added a picture to previous post and yes meant 18".
To be very frank, the 14" will probably never go back on machine now. 
Also we did not spend the time to play around with changing settings as had limited time and just wanted to get coil dragging across the ground to see if it could ping a target. As explained earlier this ground is definatly the perfect test ground for new coils as is only a small patch and has been thoroughly hammered with every combination, so to ping something was a great feat for this coil.
After comparing a couple air targets of small gold nuggets I think the 18" will go as deep as the 10" coil, but time will tell as we use and fine tune more. 
With settings, every body has there personal way of setting up there machines, there are lots of choices and I love volume up max as can hear better, IMO.
When health permits we will get back there soon and hope that nenad will join us next time again to see these in real life detecting.
Re the plug adaptor,  I have a guy in adelaide who did mine and am impressed with result.

Well done Wally, it's good to turn up a bit of gold from where it's been hammered ay.

cheers dave

Dave, We are just pleased that stan and yourself took on to try and get these coils and bring them out here. After all the negative banter early on, i can just see some people eating humble pie. To spend big bucks on a detector then cut cables, for us that is what you have to do sometimes to get the lead advantage. I am saying advantage because we have definitely seen an advantage already. We cant wait to get to gold country to get another 50 plus oz's in the winter mths. Will be a good aphrodisiac for my cancer, im sure. 
What a good hobby this is.

Don't suppose you are looking for volunteer to try the 18" coil in heavily mineraIised deep red soil in North Queensland?

Rockwall wrote:Don't suppose you are looking for volunteer to try the 18" coil in heavily mineraIised deep red soil in North Queensland?

Just out of curiosity, what is the general area of QLD that you detect?

cheers dave

Forsayth general area.

Rockwall wrote:Forsayth general area.

We have never been that far north, been around Clermont Central QLD quite a few times over the years.

cheers dave

Are there any further updates? Availability etc?

Rockwall wrote:Are there any further updates? Availability etc?

Yes, there are a few people using the X-coils now, and getting some gold as well. The range of coils are 10"x9" then a 12" round then a 15" round and a 17" round. There are still the original ones like the 15x14 and 16x15 and the 18" round.

The one first mention are probably the most popular but the others are there as well for people that want the slightly elliptical shape.

I really like the 12" round and the 15" round, and I am about to give the 17" round a good work out.

I can order coils for sale and get a few more out there for those that want one.

cheers dave

I would be looking at the biggest, depending on price. Have they been priced out yet?

Rockwall wrote:I would be looking at the biggest, depending on price. Have they been priced out yet?

When you say the "biggest" are you meaning the 17" round or did you have another size in mind???

cheers dave

What price is the 15inch round

flake wrote:What price is the 15inch round

At this stage, from the small coil upto the 15" size coils are $1200, all coils have 12 months warranty and come with a skid plate and one spare skid plate, and the price includes postage.

Remember you need to make your own patch lead from either the GPZ14" or the GPZ19 coil these coils are operational again once the normal 5 pin inline female plug is soldered into the coil lead and a 5 pin inline male plug is soldered into the piece of coil lead that has the ML plug to either use an x-coil or reattach the  original GPZ coil.

The 15" spiral x-coil weighs 1375grams with a lower shaft attached, (which you swap from your existing coil) or buy the accessory lower shaft ML pack which has all the washers and bolts and lower shaft in the pack.

15" spiral round x-coil


cheers dave

The 17" if that is the biggest at the moment. I will be interested to hear how it performs for you.

Ok, here is a silly question from someone who is not very technical, could say a 17x13 evo be used by making a patch lead?

Gidday Dave,

Doug, over on his AEGPF forum, is posting that legal action will be coming from Minelab re these coils.
" The key point is that another manufacturer is using ML protected IP for their own(and agents?) pecuniary benefit.ML will do whatever it takes to protect their own IP and to prevent others hijacking or subverting it for their own use. Its worth noting that anyone that uses ML protected IP for their own purposes could be deemed to be infringing."

Any thoughts re the legalities or otherwise of these coils. I would like one of the 25 inch ones myself , but not if I am breaking the law !

Cheers, Rick

Interesting observation. But could it said that anyone who has modified a minelab machine has done the same thing? Including attaching aftermarket coils, battery adaptor leads etc?  Best left to the lawyers to assess perhaps. Surely that has been considered? Yes, 25" would be good!

Rockwall wrote:Ok, here is a silly question from someone who is not very technical,  could say a 17x13 evo be used by making a patch lead?

I get asked the same thing a fair bit. I would have to say NO it won't work, even though the patch lead will make it connect, thing is the Evo Mono coil has only 2 wires in the coil cable, even though it has a 5 pin plug, and the GPZ 14 or GPZ 19 have 5 wires in the coil cable.

The patch lead has to be made from and existing GPZ14 or GPZ19 coil as the chip the gives the 7000 the ok to work is in the GPZ's coil plug.

All the GP and GPX coils have either 3 wires for a DD or 2 wires for a mono, and all have the 5 pin inline female plugs attached.

cheers dave

Ok. Thankyou.

AraratGold wrote:Gidday Dave,

Doug, over on his AEGPF forum, is posting that legal action will be coming from Minelab re these coils.
" The key point is that another manufacturer is using ML protected IP for their own(and agents?) pecuniary benefit.ML will do whatever it takes to protect their own IP and to prevent others hijacking or subverting it for their own use. Its worth noting that anyone that uses ML protected IP for their own  purposes could be deemed to be infringing."

Any thoughts re the legalities or otherwise of these coils. I would like one of the 25 inch ones myself , but not if I am breaking the law !

Cheers, Rick

We are not changing or modifying or copying any of Minelabs IP and if a person has a coil and wants to cut the coil plug off and reattach another, well I see nothing wrong. If minelab wants to make extra coils etc, and asks me to stop then I will, but at the present time we are only filling a gap that exists.

cheers dave

Listen Fellas, what goes on & said on other forums, should stay on other forums & not dragged over here open to discussion/innuendo.
Australia Government (IP Australia), clearly explains the laws governing Intellectual Property Infringement. I suggest anyone concerned, get the facts from them. Now if anybodies wondering where some of the posts have gone, It was I who deleted what I deemed to be not appropriate, for discussion under this topic heading.  

Cheers Kon.

Yep.

Did some detecting at Stuart Town today, found a nice sounding target with the 12" spiral round x-coil, so I decided to check the target with some other coils, 15" spiral round x-coil then the 17" spiral round x-coil,and the GPZ14" standard coil.

So I took some video of each coil going over the target all with the same settings, HY/Dif, rx 9, Audio smoothing OFF, semi auto ground balance, ground smoothing OFF, and other settings to suit.

Detecting at Stuart Town common 17/3/2019


cheers dave

Well done on taking the time to do this sort of thing!!

the hill folk wrote:Well done on taking the time to do this sort of thing!!

Thankyou, yes it takes up a lot of the detecting day swapping coils and checking and then redo it all again for the video, and I'm no expert with the camera, I just hope it's ok.

First and hardest is finding what sounds like it might be a decent target at depth, sometimes they are gold, and like this one sometimes a big old bullet head, its weight was 12.5 grams, so those signals will always be getting dug up by me if I hear them, this area is so hammered and has been gone over and over that many times by everyone, and yet there is a target that could well have been a half ounce bit of gold.

cheers dave

the hill folk wrote:Well done on taking the time to do this sort of thing!!

Ditto.