northwest X-Coil for GPX?
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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? 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: X-Coil for GPX?  (Read 4497 times)
Reg Wilson
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« Reply #60 on: Sunday September 29 2019 17:14:53 AEST PM »

The fake speci thing was some time ago, and I heard the complaint from the purchaser, however, as Simon has pointed out, there are two sides to a story.
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dasenator777
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« Reply #61 on: Sunday September 29 2019 18:22:15 AEST PM »

cheers Reg  smile
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geof_junk
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« Reply #62 on: Sunday September 29 2019 19:42:43 AEST PM »


That the spirit Reg.
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phrunt
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« Reply #63 on: Monday September 30 2019 11:25:18 AEST AM »

Thank you Reg. 

Here is a quick video I did today when my GPX X-coil 15x14" arrived.  I'll just copy and paste from DP forum why I did the video but figured I should put it here too seeing it's a thread on GPX x-coils.  I think I'm really going to like this 15x14", It keeps it's sensitivity to small gold well.

 The next coil for my X-coil stable arrived today, it's a 15x14" flat wound (spiral), I haven't even had a chance to test the 15x10" yet as between bad weather and taking my daughter skiing (it's school holidays) I've been very busy.

Today was a day off but the weather didn't play ball with rain and snow on the forecast.  I managed to take off down to the river behind my house just after it arrived for about 20 minutes before the heavy rain started.  I went woefully unprepared as I was in a rush to beat the weather so I just grabbed a bottle I've got a few bits of gold in to test them.    I just quickly threw the coil on my QED as it's quickest and easiest to use, no harness or cords or battery or anything to slow me down, just switch on and go like a VLF

Here is a quick video I took, very unscientific I know, didn't bother with depths and burying or anything but I was very happy with it's performance.  I didn't need to ground balance the QED it was balanced from turn on in default settings with this coil in this soil.  I did suffer a bit from EMI with this bigger coil in this area, no surprise as there are high voltage power lines nearby from the windmills, I could of messed with the SMR (like manual tune) to get rid of it but I was in a rush with the black clouds coming.  In the video I'm mostly holding the coil quite high off the ground and lower it a bit on the two smallest bits, the other bits are a good 5+ inches off the ground, probably a reasonable amount more than that... as I said, unscientific ????

  

It was a very rushed test of the coil as I wanted to beat the rain, I only just did.
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phrunt
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« Reply #64 on: Friday October 4 2019 16:59:12 AEST PM »

Here's another video I did today of the QED, GPX, T2 and Equinox on a 1.2 gram nugget buried at 19cm mostly using X-coils but also the NF Evo 14x9", very mild soil obviously, I was planning to bury it again at 30cm but the strong wind blew in some rain so I had to take off before I got my gear wet.

The GPX was being messed with by it's kryptonite, EMI while the QED was virtually immune to it with only some small EMI issues if you could call them that with the 15x14" X-coil.

  

I left my QED settings the same for every coil.  I was using Mode 11, I understand in hotter soil you can't get away with using this mode but I can, so why not use it!   VLF's do pretty good too in mild soils.

This isn't any sort of comparison video, not done in any technical manor, just seeing what I could get out of each detector and coil combo.
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phrunt
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« Reply #65 on: Friday October 4 2019 18:38:35 AEST PM »

I should add I personally think the QED was doing better than the GPX, if the damn weather didn't kick in I was hoping to try 30cm and keep going until it was no longer detected, The VLF's would likely drop out of the game before 30cm but judging by the results so far the 15x14" on the QED maybe the depth winner in this scenario as it was hitting the target best, especially with the 15x14", I'll try it out sometime soon.   I really love how immune the QED is to EMI as a lot of the gold areas around here are loaded with high voltage power lines.
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Blip
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« Reply #66 on: Friday October 4 2019 20:57:48 AEST PM »

Thanks Simon.
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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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