Jump to content

22" GPZ X Coil Concentric Results


Recommended Posts

It's a really nice video work of a 15 "X concentric coil in detection .. by Simon .. and the results of such detection are really satisfying ...ūüĎć

 

  • Like 7
Link to post
Share on other sites

  • Replies 69
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Popular Posts

Not sure where to post this but Steve can move it if necessary: I've been wandering central Victoria for the last two weeks with this proto 22" Z X Coil concentric and results are impressive, to

In reasonably homogeneous ground Normal is going to work OK, its when the ground becomes variable and constantly changing that the Normal timings will leave a lot of gold in the ground. I’ve tested th

Thanks Gerry. Back home now. I ended up with a couple of ounces more than I left with, so covered costs at least: Largest piece was this stained 22 grammer in noisy tertiary ironstone c

Posted Images

Very nice haul of gold and your information/settings are interesting.  Never hurts to try something different and especially on ground you already pulled gold.  Well done and nice photos.

  • Like 4
Link to post
Share on other sites
  • 3 weeks later...
On 3/26/2021 at 1:13 PM, Gerry in Idaho said:

Very nice haul of gold and your information/settings are interesting.  Never hurts to try something different and especially on ground you already pulled gold.  Well done and nice photos.

Thanks Gerry.

Back home now. I ended up with a couple of ounces more than I left with, so covered costs at least:

wu8ofH8l.jpg

Largest piece was this stained 22 grammer in noisy tertiary ironstone conglomerate, a clear target signal:

oyHK4bpl.jpg

Find of the trip award goes to Reg Wilson for this 6 grammer, located at depth with a 4000 running "Normal" with "Bogene" settings:

dKC9qzol.jpg

This 6 grammer from "Ravens Patch" Longbush near Moliagul was a personal favourite, especially as many consider the area well and truly "skun"

mZpCuY3l.jpg

Following the rains, mobilised soil salts rendered GPZ "Normal" timings all but unworkable, so my supply of sub grammers at depth dried up somewhat. At least digging deeper holes became a breeze, so not all bad :)

Before that happened, I'm still blown away by actually hearing a half grammer at seven inches with a 22" coil, as well as a .1 grammer at 4"!

Other people are now reporting similar extraordinary results using X CC's, with their favourite flogged patches also coming to life again: 

https://www.facebook.com/groups/3553656301344280 

  • Like 9
  • Oh my! 1
Link to post
Share on other sites

Seem to be varying results on the link posted James. ¬†The Nic Mac bloke reckons it was no deeeper on his test patch and had less depth then the 14‚ÄĚ on a 1/2 ouncer.

Seems to be pinging a good amount of prickly bits in tricky ground, turning the 7000 into a 6000 ūü§ĒūüėČ

  • Like 1
Link to post
Share on other sites
2 hours ago, Trent King said:

Seem to be varying results on the link posted James. ¬†The Nic Mac bloke reckons it was no deeeper on his test patch and had less depth then the 14‚ÄĚ on a 1/2 ouncer.

Seems to be pinging a good amount of prickly bits in tricky ground, turning the 7000 into a 6000 ūü§ĒūüėČ

- and an SDC as well Trent. One coil type does it all? 

Hopefully, I'm going to trial a 26" Z DOD spiral soon on deep, unpushed big gold ground,, just to compare results with the 22" Z CC.

  • Like 4
Link to post
Share on other sites
On 4/10/2021 at 7:33 PM, jrbeatty said:

- and an SDC as well Trent. One coil type does it all? 

Hopefully, I'm going to trial a 26" Z DOD spiral soon on deep, unpushed big gold ground,, just to compare results with the 22" Z CC.

Seems odd that i put my order in for a 22" spiral ages ago after seeing Dave test one here in AUS, only to be told that the maker wasn't happy with the results. I got offered the 20" instead. Either the new owners don't give a stuff what they pump out or they're smarter at making coils. It will be interesting to see how the bigger 26" goes. Do you think on deep gold the zed with a 26" will be any match for those prototypes you guys swung 30 years ago? Especially that big ass bismark coil.  

  • Like 3
Link to post
Share on other sites
9 hours ago, Jin said:

Seems odd that i put my order in for a 22" spiral ages ago after seeing Dave test one here in AUS, only to be told that the maker wasn't happy with the results. I got offered the 20" instead. Either the new owners don't give a stuff what they pump out or they're smarter at making coils. It will be interesting to see how the bigger 26" goes. Do you think on deep gold the zed with a 26" will be any match for those prototypes you guys swung 30 years ago? Especially that big ass bismark coil.  

I‚Äôd say a lot of the Bismarck coil gold found back in the day could have¬†been¬†found with the later¬†SD2100 with a standard 18‚ÄĚ mono coil on it, with today‚Äôs grunt in the GPZ the standard GPZ14 would have easily pulled those big slugs at depth. As electronics have¬†improved there‚Äôs been¬†a¬†converse reduction in available BIG targets, these available targets¬†have¬†correspondingly decreased with each model release. The other thing of note is when a target gets to that 3 foot mark (which all the PI‚Äôs from start to current day and now ZVT are quite capable of achieving) an inch is a massive difference relative to the¬†inverse square law, at 3 feet an inch is akin to 6 inches extra depth at a foot and so on. The other issue is the detector is reacting to those deep slugs but you the operator is either not reacting to them because they are so broad¬†or writing them¬†off as ground noise or after having dug at a few only to have them dissipate then¬†not bothering to go through the painful process of scraping back and trying to get a¬†signal to improve to an identifiable definite response, when a target is at¬†three + feet it can take a lot of digging before the signal becomes the real¬†deal!!

I went to Georgetown Far North Queensland December of 2019 and was amazed by the local stories of all the big deep gold that was found with VLF detectors in pure granite country! All sluggy heavy gold, yet everyone up there these days is hitting the red oxidised diorite, weathered Gabbro and metabasalt contacts where it is more mineralised as the granite areas stopped producing long ago. I was amazed, I would not give that pale looking granite country a second look as I’ve spent the vast majority of my career chasing the high iron mineralised areas. Generally the more mineralised areas are also shallower so its a double whammy for modern detectors, the tech allows us to work the nasty ground and pull even tiny little bits of gold but due to the shallower nature of that type of ground large big slugs are less likely to be at depth, back in the day the VLF machines when venturing into those areas would have scored the bigger shallow signals.

JP

  • Like 5
Link to post
Share on other sites
6 hours ago, Jin said:

Either the new owners don't give a stuff what they pump out or they're smarter at making coils.

I think I have missed that somewhere.  Has X-coils changed hands?   

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Similar Content

    • By Steve Herschbach
      I wanted to clarify this, in case people are thinking x coil is not welcome here, due to some x coil related members leaving the forum.
      I support anyone or anything that legitimately extends our metal detecting capabilities. I applaud x coils efforts.
      What I did not like was the fact that you have to take a perfectly good coil, and use it to create an adapter. The process is not simple, and if done incorrectly can fry a GPZ 7000. The repair will cost thousands of dollars, and that is not an exaggeration. Further, there appears to be nobody who will make these for people, and warranty that if the work blows up the detector, that they will insure those costs. In others words ‚Äúdo this at your own risk.‚ÄĚ Seems simple to me. No drama, just¬†‚Äúdo this at your own risk.‚ÄĚ
      The knowledge of that risk was suppressed, and people who expressed concern were attacked and ridiculed. ANY mention of the risk was met with swift damage control that attempted to shout down the offending party.
      THAT is what I objected to. I‚Äôm a pragmatic facts based guy. I could care less about the adapter. I do care that it is something that should be¬†a disclaimer on any ‚Äúoh these are the greatest thing since sliced bread‚ÄĚ coming from parties who received many¬†thousands of dollars in free¬†product. And I mean seriously, who actually buys x coils? Because from this dumb Alaskans perspective, nearly everyone reporting on x coils is sporting free coils.
      Are there people out there that have to buy your x coils? I’d like to know who those people are, and hear what they have to say. Even then, I’m surprised how little you can trust even reports from purchasers. I was under the impression from several people that the QED was a pretty good product. Now, the ex-dealer is revealing that they are in fact a crap shoot, with very poor reliability, and poor physical construction. The truth now seems 100% the opposite of what I was being told by people, including people who berate others for concealing things. I gave QED quite a bit of positive coverage here that I now regret, because the so-called honest reporting of purchasing owners turns out to be quite suspect. When people buy junk, they prefer to quietly move it along with little fuss. In the meantime, the rest of us are not getting a clear picture of the truth.
      The same thing was going on with the Impulse AQ testing. Parties experiencing issues are protective of the developers, kind of a Stockholm Syndrome thing, where you protect your abuser. Because, you know, maybe the next thing they do will be good, and would not want to get shut out of that! So relevant facts about issues that might be perceived as problematic are suppressed or hidden. I bailed out of the project over that.
      Anyway, back to X¬†Coil. I just want to let people know discussion of them is welcome. What is not welcome is berating people for being concerned over the adapter. That should simply be the default position for wise people. ‚ÄúDo this at your own risk.‚Ä̬†Concerned care, not panic. Second, since free coils rained down like crazy, it would be nice if reporters clearly identify themselves as people getting free gear. I‚Äôm serious. I‚Äôm truly¬†an outside observer to all this nonsense, and there appear to be¬†almost no people who report on x coil, that do not¬†have at least one free x coil.
      So that’s my question. Is there anyone out there that is just a person that bought these, and made or paid someone to make an adapter? A straight up no question purchasing end user? If so, I’d sure like to hear from you!! If you have free coils, love to hear from you also, but please let us know the whole picture.
      And to mention one last time. Never did, still do not have any issue with x coil discussion. It’s ok to great product, exploring new ideas, and I thank them for that. It was all the skullduggery and drama that bothered me. I’d welcome sane discussion of the product, and if they ever make a coil for a GPX 6000, I’d be interested. 
      https://www.x-coils.com

    • By Condor
      Thanks to Davesgold and the X-Coil manufacturer, I got a gifted 17x12 Spiral Wound coil. The manufacturer took notice of my multitude of problems with the connector modification and sent me a new coil from Russia.  Bravo Zulu X-Coil for prospector support.  The weather has improved here in Sunny Yuma so I replaced the 17" round with the new coil and took it for a spin.  I balanced it over the ferrite with no problems and I experienced no bump sensitivity. 
      The first thing I noticed is how well the coil balances on my modified hip stick rig.  I do a lot of detecting in the walls of desert washes, putting the coil on its side.  The 7000 tends to get the "wee waas" if you don't keep them flat, but this coil seemed to really tone it down and it balanced really nice for less strain on my arm and shoulder.  On relatively flat ground I think I could swing this coil all day for less wear and tear on my 65 yr old frame.  I ultimately didn't find anything in the walls, but I hit some old hillside drywash tailings and popped these 3 nuggets.  All were at moderate depths but I was amazed at some of the deep iron bits I found.  Without some side by side target comparisons I can't say that my depth is improved, but I'm getting a lot better ground coverage and I can poke it in between rocks and obstructions.  Even if this coil is no better than the original Minelab 14", it's a lot more versatile.   This will be my go to coil from here on.  I'll stick the 17" round on over worked out patches, but this is my new secret weapon.
      Again, many thanks to Davesgold and X-Coil
      X Coil 2021 News

    • By Condor
      I got my GPZ back from Minelab last month, which included a new 14" coil and lower rod.  Only $3600.00 AUD lighter in my wallet.  As you may recall, I bricked the detector after the Patch Lead was defective.  It's still crazy hot here in Sunny Yuma, but I was bored and still curious about the X-Coil, so I shook off my concerns and cut the connector off my brand new coil and built the Patch Lead myself.  I was extra careful with the heat from the soldering iron and did a respectable job of putting together the connection.  I did a few practice runs on scrap wire and connectors so I was a little more confident of my skill. 
      I got out 5 mornings last week for a total of about 12 hrs run time.  At sunup the morning temps were still in the high 80's and jumping to 100 by 9:00am.  Unbearable in the desert washes with no breeze.  The one thing that saved me was the synthetic chamois cooling cloths, one around my neck and one under my cap hanging down my neck. 
      The first morning I did a complete set-up with the detector since it was, for all practical purposes, a brand new machine with all new printed circuits etc.  I waved the 17" X-Coil over the ferrite and got the machine nearly silent, though still reacting some to the ferrite.  I started in the area where I found the 28 gram rippa last May.  This area has a fairly hot layer of clay about 12" under the overburden.  Last May we were able to run this zone using HY, Normal, Sens 12,  (Threshold 27) with the Patch Search mode to quiet down the machine.  The 17" X-Coil in those same settings was way too sensitive, so I had to switch to Difficult to quiet it down.  Because I knew I could only be out for a couple hrs, I focused on trying to get that coil over gold hoping to then play with the settings.  No joy the first morning.
      The next morning I went out to an area that had produced half a dozen 1 grammers when the GPZ first came out.  I knew it was deeper and a little quieter ground.  We tried Paul's 19" GPZ here when it first came out to no avail.  This time I was able to zero out the Ferrite and switch back to Normal from the Difficult setting.  The machine was still a little twitchy so I backed off the Threshold to 22 and got it humming along nicely.  I gridded the area pretty good and came up with a few deep trash targets and then, right as it started to get unbearable hot, I got a faint, sweet rising tone. A lot of digging and sweating produced a sweet 4 grammer right on the hardpack, about 14 inches down.  Now a 4 grammer at 14 inches should be well within the range of the GPZ and standard 14" coil, but I've been over that zone at least 6 times over the past 3 years.  The only significant difference is the ground is bone dry this year.  Last year there were still pools of water from late season rains.  
      The next morning I was back to the area of the 28 grammer.  I found that the machine was more stable and I could run in Gen, Normal, Sens 14.  I got a couple deep trash targets and chased a number of hot ground seams and hot rocks.  The settings were really sensitive to hot ground, but in my mind that's the only way to find good missed targets.  Right at the end of the morning I got what sounded like another bit of hot ground.  I switched to High Yield from General and it brightened up the target, but still hadn't convinced me that it was gold.  The target was in the sidewall of a drywasher's hole, so the 17" coil was pretty awkward.  I dug out the ground so that I could get the coil level and the target brightened up a little more.  By then I had hit the hardpack which tends to hide these small, reddish hotrocks.  I dug dozens in this same area, but I needed to check this coil's capabilities.  The hardpack was brutal in the morning sun so I had to go back to the truck and get my handy Aussie (DavesGold) made pick.  I'm not going out without it now.  About 8 inches into the hardpack out popped a nice 1.5 grammer.  I can guarantee I  stuck the GPZ standard coil in the hole a half a dozen times over the past 2 years.  
      Thur morning I got out in the same area.  I chose a wash that a produced 5 small nuggets, in the sub-sub gram range, in May.  I concentrated on the deepest gravels thinking deeper nuggets must be in there, just beyond the reach of the 14" coil.  I gridded the zone where a bench had formed on the inside bend of the wash.  I went at it from every angle and was about to surrender to the heat when I got the faintest of faint tones.  Again I switched to High Yield and it brightened up some.  I switched to Difficult, nothing.  I started pulling down the bank so that I could get a good level swing with the 17" coil.  Slightly improved tone, still unconvincing.  I pulled down another few inches and got a much improved tone.  I switched to Difficult and got a dull growl, more convincing yet.  After much digging into the hardpack out came a nice 1.8 grammer.   I even photographed the hole for this one.  The Aussie pick is 28" long.
      I'm really starting to like this coil.  It's light enough for all day use with the addition of my homemade hipstick.    I run the hipstick to the bottom of the frame in my lightweight framepack, which moves the weight to the back of the hipbelt and off my shoulder.  I'm also running the SteelPhase amp plugged directly into the GPZ, no wireless connection between.  As per some of JP's guidance, I'm running the GPZ volume at 2, adjusting loudness at the amp.  I'm running the Threshold between 20 and 22 depending on how twitchy the ground is.  For the most part I'm running General instead of High Yield trying to reach those deeper targets.   The first 2 targets were well within the reach of the standard 14" coil, but somehow I didn't find them over the past 2 years.   The last one, doubtful for the standard coil.  As the weather cools I'll start doing a quick change to the 14" coil over new targets for a comparison.   Right now, it's still to friggin hot to bother. 
      X Coil 2021 News




    • By Jin
      The x-coils aren't water proof? Is that right?
      Was heading away for 4 days of nugget hunting in the caravan this week but it looks like it's¬†going to rain??ÔłŹ
      Any thoughts on whether the rain may cause any problems to these coils?
      I know i used to detect in the poring rain with the coiltek elites and the 11" and 18" were fine but my 14" used to false when pressed against the ground. This only ever happened when it rained and i think moisture was getting in where the cable entered the coil.. I was thinking maybe taping some plastic over where the cable inters the coil on the x-coils just to be safe. 
      Any other time id just cancel and go the following week but this is the last opportunity according to my wife to go for sometime. (new puppy that will need toilet training etc)
       Im keen to try out the new x-coils and hit a spot that may soon be exempt from prospecting in a few months time.  
      X Coil 2021 News
    • By Jin
      Have the 10" x-coil sitting at home and now waiting on the 22"x 21" to arrive. Was wondering if others have purchased lower shafts for each of there x-coils or just use the original one and undo/fit the coils to that one? (haven't done the chip mod yet so haven't bothered fitting the 10" x-coil.)
      X Coil 2021 News
    • By Rob Allison
      Hey Steve,
          You and I have known each other for a long time, even had some great times metal detecting together.  That being said, the X-coils at this point scare me off.  I had an opportunity a month or so ago to test several different sizes from someone that is affiliated with the manufacture.  I was a bit excited at first, then found out I would have to cut/modify an adapter/chip from another GPZ coil to use one of the X-coils.  
      To me, the trade off to damage or destroy a $600 - $1500 coil to just get an adapter to work on an X-coil is not my cup of tea.  I don't need a smaller coil that bad to do this.  That being said, other guys like to modify/fix/tinkle or whatever might enjoy this.  
      I find the GPZ 7000 stock coil plenty sensitive enough to find gold down to a grain in size.  However, a smaller coil like an 11" or so would be nice for tighter areas or areas with more vegetation.  
      We were kind of promised a smaller coil originally from Minelab and that never happened.  I think one more smaller coil from Minelab would have eliminated most of this stuff about smaller coils. 
      Keep in mind, at one point I sold more Coiltek searchcoils across the US than any other dealer.  I could probably sell a ton of the X-coils, but not at the cost of sacrificing a detectors warranty.  
      For the benefit of all GPZ owners, I hope someone like Coiltek, Nuggetfinder, Minelab, X-coils or whoever can find a better way to make a coil that will just plug right into the GPZ and work.  
      Just my thoughts,
      Rob Allison
       
      X Coil 2021 News
×
×
  • Create New...