northwest Anti interference coils( A1) on the QED.
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum (Moderator: bugwhiskers)  |  Topic: Anti interference coils( A1) on the QED. 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Anti interference coils( A1) on the QED.  (Read 907 times)
Doug
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« on: Monday August 7 2017 09:19:19 AEST AM »

 The QED can run  coiltek A1 coils.BW needs to do a lot more testing to determine how the A1 coil compares to a mono for depth and sensitivity on the QED.When this is done results will be posted.
doug smile
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Doug
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« Reply #1 on: Friday August 11 2017 11:37:28 AEST AM »

  
The QED can run  coiltek A1 coils.BW needs to do a lot more testing to determine how the A1 coil compares to a mono for depth and sensitivity on the QED.When this is done results will be posted.
doug smile

The  A1 coil works on the QED.As the coil passes over a target you do get 2 tones low/high or high/ low as the signal from the RX windings is  anti phase ie inverted.
doug smile
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bugwhiskers
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« Reply #2 on: Sunday September 9 2018 13:06:26 AEST PM »

  
  
The QED can run  coiltek A1 coils.BW needs to do a lot more testing to determine how the A1 coil compares to a mono for depth and sensitivity on the QED.When this is done results will be posted.
doug smile

The  A1 coil works on the QED.As the coil passes over a target you do get 2 tones low/high or high/ low as the signal from the RX windings is  anti phase ie inverted.
doug smile

When the weather improves I will post a video.
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Doug
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« Reply #3 on: Sunday September 9 2018 14:13:11 AEST PM »

  
  
  
The QED can run  coiltek A1 coils.BW needs to do a lot more testing to determine how the A1 coil compares to a mono for depth and sensitivity on the QED.When this is done results will be posted.
doug smile

The  A1 coil works on the QED.As the coil passes over a target you do get 2 tones low/high or high/ low as the signal from the RX windings is  anti phase ie inverted.
doug smile

When the weather improves I will post a video.


Do you think from your testing that the A1 coil on the QED  that any external interference will be seen by both sides of the coil  anti phase and thus will be cancelled?
doug smile
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« Reply #4 on: Sunday September 9 2018 14:22:14 AEST PM »

The other thing that AG fails to say  on PA is that you cannot run a gpx under 2 phase power lines with a mono coil but you can with the QED! Clap Hands
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dasenator777
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« Reply #5 on: Sunday September 9 2018 14:28:36 AEST PM »

very interesting findings fellas, also AG is a knob jockey hes on my ignore list everywhere now  excited good luck
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bugwhiskers
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« Reply #6 on: Sunday September 9 2018 15:19:44 AEST PM »

  
  
  
  
The QED can run  coiltek A1 coils.BW needs to do a lot more testing to determine how the A1 coil compares to a mono for depth and sensitivity on the QED.When this is done results will be posted.
doug smile

The  A1 coil works on the QED.As the coil passes over a target you do get 2 tones low/high or high/ low as the signal from the RX windings is  anti phase ie inverted.
doug smile

When the weather improves I will post a video.


Do you think from your testing that the A1 coil on the QED  that any external interference will be seen by both sides of the coil  anti phase and thus will be cancelled?
doug smile

I fitted my AI coil, wound the gain and threshold up to max with my 3D printer running about 4 feet away and it was very quiet. I am asking around the local prospectors for the whereabouts of any electric fences.
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bugwhiskers
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« Reply #7 on: Tuesday September 11 2018 12:37:09 AEST PM »

A video proving that an AI (Anti Interference) coil can indeed be used on the QED for detecting near electric fences.
Please note that an AI coil cannot be fitted to a GPZ7000 or SDC2300.

  
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« Reply #8 on: Tuesday September 11 2018 13:24:55 AEST PM »

  
A video proving that an AI (Anti Interference) coil can indeed be used on the QED for detecting near electric fences.
Please note that an AI coil cannot be fitted to a GPZ7000 or SDC2300.

  

If you  plugged/unplugged the coils on a gp/gpx like was done in this video  you may well blow up the front end!!!!
doug smile
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« Reply #9 on: Tuesday September 11 2018 13:50:02 AEST PM »

A small pinpointer has been developed that is just a ferrite rod coil. We are still waiting to find someone who wants to manufacture it. Being able to switch from standard coil to pinpointer without having to switch the detector off is a very handy feature.
The GPZ7000 sells for around $9500 and the SDC2300 for around $3500. That's a very unlucky total of $13000.
For around 1/7 (one seventh) that price you can have a QED that covers the same range of nugget sizes.

PS And an AI coil can be used around electric fences and over salt lakes.
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jrbeatty
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« Reply #10 on: Tuesday September 11 2018 16:59:12 AEST PM »

Didn't realise it's possible to swap coils on the go like that  smile

Not that I would of course, and that anti interference coil/electric fence demo is most impressive!
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Doug
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« Reply #11 on: Tuesday September 11 2018 17:26:37 AEST PM »

  
Didn't realise it's possible to swap coils on the go like that  smile

Doing so as you see will not effect the QED!!! But do NOT try it with a ML Pi!!!!!
doug smile
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dasenator777
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« Reply #12 on: Tuesday September 11 2018 19:17:29 AEST PM »

ive already purchased today the 11 inch AI from reeds in wa, 215.00 plus postage, will be here when i get back, pitty i didnt purchase to take with us. impressive changing coils without turning off, not that id do it either.  excited
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dasenator777
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« Reply #13 on: Tuesday September 11 2018 20:56:19 AEST PM »

a lot of people on here tonight 
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mylab
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« Reply #14 on: Thursday September 13 2018 11:12:16 AEST AM »

  
A video proving that an AI (Anti Interference) coil can indeed be used on the QED for detecting near electric fences.
Please note that an AI coil cannot be fitted to a GPZ7000 or SDC2300.

I see Ararat is still not content with the video displaying the QED operating a AI coil close to the electric fence other than it running quiet as he now says try passing a small piece of gold, 0.3 gram, over the coil as the QED will not register a response whereas a GPX does with the AI coil.
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bugwhiskers
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« Reply #15 on: Thursday September 13 2018 15:32:16 AEST PM »

Araratgold cannot accept that the versatile QED detector can out perform much costlier machines.

To get around the problem of not being able to use the AI coil on the GPZ7000 & SDC2300 he uses a GPX5000.
Is he suggesting that to compete with the QED on the full range of nugget sizes/coil types you have to buy all 3  ??

SDC2300 $3690.00
GPX5000 $5300.00
GPZ7000 $9499.00

Total $18489.00

QED around $1850.00



  
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« Reply #16 on: Thursday September 13 2018 16:04:03 AEST PM »

Well said and good points BW including further video proof in that the QED does indeed register a response on a very tiny nugget with the AI coil..
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bugwhiskers
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« Reply #17 on: Friday September 14 2018 10:35:17 AEST AM »

The screen shot below is the Ebay listing for Araratgold's QED.


* AG_ebay.PNG (44.42 KB, 1079x586 - viewed 75 times.)
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« Reply #18 on: Friday September 14 2018 11:54:28 AEST AM »

Ararat shot himself in the foot with that remark.
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australian electronic gold prospecting forum.com  |  Common interest forum.  |  General chat and discussion forum (Moderator: bugwhiskers)  |  Topic: Anti interference coils( A1) on the QED. « previous next »
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