northwest X-Coil for GPX?
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link-https://www.facebook.com/groups/245308699667153/403446933853328/?comment_id=403472030517485&reply_comment_id=403476793850342&notif_id=1562580344994993&notif_t=group_comment
Interfacion Pty Ltd is pleased to announce that the QED PI Detector has been modified to allow the use of DD (double D) coils. This change involves a simple change to the electronics within the control box.
The firmware has also been upgraded to include a further improved Ground Balance.
All detectors being delivered to new customers from Monday 5th August 2019 will already have the above upgrades included.
As a show of commitment to all QED owners, the hardware modification to allow use of the DD and CC coils will be provided at no cost.
Of course and as per the QED warranty, the firmware update is provided free of charge, except for P&H.
Any QED owner who plans to attend the Laanecoorie Bash is encouraged to bring their detector along and have it upgraded at no cost.
Standard postage and handling arrangements apply to other owners. Send via Australia Post the box (minus batteries) along with a pre-paid, pre-addressed bag/box to:
Interfacion Pty Ltd
PO Box 106R
Redan VIC 3350
Howard Rockey
Director Interfacion Pty Ltd.

australian electronic gold prospecting forum.com  |  Detector Technology and Electronics and new detectors  |  Detector Coils (Moderator: Goldman)  |  Topic: X-Coil for GPX? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: X-Coil for GPX?  (Read 1235 times)
Blip
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« Reply #20 on: Thursday July 25 2019 20:23:45 AEST PM »

I think Phrunt may have.
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Blip
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« Reply #21 on: Thursday July 25 2019 20:25:45 AEST PM »

  
What are the prices for these  X coils for the gpx detectors?

And is there a difference between them and the NF Evolution coils?

$1000 plus depending on coil im lead to believe.

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Reg Wilson
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« Reply #22 on: Thursday July 25 2019 20:33:41 AEST PM »

Phrunt (Simon) has a prototype elliptical X coil designed for GPX (QED) but the builder is snowed under with production of GPZ X coils, so it may be some time before GPX compatible coils become available. Initial reports from Phrunt seem very positive in regards to these coils when used on a QED, and it may be that a new level of performance may be achieved using a QED X coil combination.
Exciting times.
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Goldman
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« Reply #23 on: Thursday July 25 2019 20:42:17 AEST PM »

Exciting times indeed.

Looks like many manufacturers are introducing new coils now and or soon.

Detech with their new range of concentric coils
NF with their new large DD
Xcoils

What next I ask?
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dasenator777
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« Reply #24 on: Thursday July 25 2019 20:43:04 AEST PM »

i would not buy one and thats my opinion get over it lol  excited
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Reg Wilson
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« Reply #25 on: Thursday July 25 2019 20:46:34 AEST PM »

777, What's up mate? no money, or no ideas?
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dasenator777
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« Reply #26 on: Thursday July 25 2019 20:49:17 AEST PM »

you have been here about a month and turning on posters here all ready, not a good look, my respect for you just halved ol mate, take it to halfies... good luck
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Goldman
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« Reply #27 on: Thursday July 25 2019 20:49:32 AEST PM »

  
Exciting times indeed.

Looks like many manufacturers are introducing new coils now and or soon.

Detech with their new range of concentric coils
NF with their new large DD
Xcoils

What next I ask?

I should mention that the DETECH concentric and DD coils do not work very well on the QED.

Cheers Goldman




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dasenator777
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« Reply #28 on: Thursday July 25 2019 20:51:41 AEST PM »

  
777, What's up mate? no money, or no ideas?
i dont care what name anybody has a dikhead is a dikhead full stop.
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Blip
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« Reply #29 on: Thursday July 25 2019 20:56:34 AEST PM »

  
  
Exciting times indeed.

Looks like many manufacturers are introducing new coils now and or soon.

Detech with their new range of concentric coils
NF with their new large DD
Xcoils

What next I ask?


I should mention that the DETECH concentric and DD coils do not work very well on the QED.

Cheers Goldman


Howard is working on that Goldman. Get up to the times mate!  happy face
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Goldman
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« Reply #30 on: Thursday July 25 2019 20:57:19 AEST PM »

Guys, Let’s all get back on topic

Cheers Goldman
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dasenator777
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« Reply #31 on: Thursday July 25 2019 21:04:51 AEST PM »

  
Guys, Let’s all get back on topic

Cheers Goldman
great idea im with you gm
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Reg Wilson
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« Reply #32 on: Thursday July 25 2019 21:11:42 AEST PM »

No money, no ideas, no sense of humour?
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phrunt
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« Reply #33 on: Thursday August 1 2019 08:17:16 AEST AM »

I have a prototype 6x12" X-coil.  

It's a combination of flat and bundle wound, the reason for this is 6" was too small to be a flat wound coil but X-coils manufacturer wanted to make me a very sensitive to small gold GPX coil as in NZ we mostly have small gold.  

The larger size X-coil's for GPX will not need to be a combination of windings, this was just done to get flat windings into such a small coil.

You'll notice the flat wound coils tend to be larger like Nugget Finders smallest at 12x8" with the EVO.

It runs perfectly fine on the QED, I mostly run in Mode 1 with a gain of 10 with it, we have very mild soil here so we can get away with things most can't.

It's a very stable coil, no knock sensitivity and is of course very sensitive to small targets.
 
The build quality is outstanding, although it's a little heavy for it's size at 848g, not an issue obviously as it's still light.

Also, I don't think the X-coils for GPX are going to be $1000+, that's just the GPZ coils as a lot more goes into them.  The GPX coils will be cheaper.


* IMG_20190520_154613.jpg (187.04 KB, 642x856 - viewed 191 times.)

* IMG_20190603_143412 - Copy.jpg (260.21 KB, 846x559 - viewed 184 times.)
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phrunt
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« Reply #34 on: Thursday August 1 2019 08:27:44 AEST AM »

and here is the X-coil next to the 14x9 Evo so you can see the thickness difference due to the combination of windings



* IMG_20190527_195337.jpg (136.67 KB, 856x471 - viewed 180 times.)
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Blip
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« Reply #35 on: Thursday August 1 2019 08:49:58 AEST AM »

Thanks for that Simon.

So there isnt any GPX coils out there/made as yet? Will be interesting to see how they compare with others on the market with performance and price.

Without the likes of a website listing what is available its a little difficult keeping up.

Cheers mate.
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phrunt
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« Reply #36 on: Thursday August 1 2019 09:10:52 AEST AM »

Not that I'm aware of, Davsgold (Dave) was sent a couple of prototypes of larger sizes but nothing official on the market yet, I guess they're a bit on the back-burner with the success of the GPZ X-coils.  He is having trouble keeping up with the orders of them.   When you're hand making something demand can easily outstrip supply, I'm sure Howard knows all about that.  

There has been an issue with two GPZ coils pop up lately with the curly cords being stretched and losing some shape in the curls making them not fit in the shaft properly.  This has been worked on and newer revised cables going on the affected coil sizes.  The two people that had the problem's coils are being replaced for them.    This is obviously not going to be an issue with GPX versions of the coil as they don't use curly cables.  I should point out the GPX X-coil cable is thick and strong, it's a good part of the coils weight I would say.  The cable feels much heavier than my Evo's cord weight.


 
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mylab
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« Reply #37 on: Tuesday September 3 2019 22:02:06 AEST PM »

  

Apparently these X-brand coils from overseas are not Bundle or Spiral wound and are called Semi-Spiral and if these type of coils are better option than the NF Evo, CT Elite or Detech Ultra Spirals which I doubt until a video is produced displaying otherwise?


Well then Reg has done just that except there is no video evidence, which I doubt you will see from him as he doesn’t do videos, so no seeing is believing.
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Reg Wilson
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« Reply #38 on: Wednesday September 4 2019 10:32:17 AEST AM »

On Monday I managed to get hold of the 12" X coil to test. This is the one to suit GPX and consequently the QED.
I tested this Russian coil against bundle, spiral and flat wound coils of a similar size, and some both larger and smaller. Small pieces of gold were used as well as a 300ml beer can, and both air and ground tests were conducted. Minelab GPX and the QED were tested.
I will summarize the tests rather than fill a page with comparisons and measurements. Some of the results will interest QED owners.
The GPX was only slightly better than QED on beer can tests using larger coils, with the 25" Nuggetfinder mono being the outright winner. Needles to say, the beer can was only air tested.
The QED picked up the smallest piece of gold (pinhead size) better than the GPX using small to medium sized coils, but the outstanding result was that a reefy little color of about 1.5 grams gave a good strong signal with the QED where as the GPX gave only a soft response at half the distance.
On ground testing revealed the X coils strongest point. With the QED I could run it 'flat out' using mode 1 and gain 10 on the soils at my property on gold bearing ground, with it purring along beautifully stable, and picking up the small targets better than the other coils.
I summing up, all I can say is that this is a very impressive coil indeed.
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australian electronic gold prospecting forum.com  |  Detector Technology and Electronics and new detectors  |  Detector Coils (Moderator: Goldman)  |  Topic: X-Coil for GPX? « previous next »
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