Jump to content
kiwijw

My Take On Aftermarket Zed Coils

Recommended Posts

Posted (edited)
On 5/4/2019 at 6:18 AM, Jonathan Porter said:

I highly recommend users who do not use the ferrite to use Auto GB mode to at least give the electronics half a fighting chance.

Thanks JP.      I don`t use the ferrite ring anymore but I seem to remember in the early days of the 7000 you said something along the lines of in auto GB it take about 20 min for the X balance to come in on the 7000 and since then I`ve always run Auto GB.     I always appreciate your comments and observations. Dave

Edited by phoenix
spelt a word correctly
  • Like 2

Share this post


Link to post
Share on other sites

1 hour ago, phoenix said:

Yeh nothing to do with new coils, but settings, a few months ago I got a target in Difficult/General that I had to dig down about 10" before Difficult/High Yield could hear it.    I always thought it was going to be rubbish, but once I detected it I had to find out.   It was ☹️

High Yield at least for me,  seems to take out the majority of the nuggets . I went over a patch in General after doing it with high yield, and nothing more was found. Maybe for specific types of gold deposits or ground types it works better?  Just wondering what experiences others have in General...

Share this post


Link to post
Share on other sites

I've also stopped using the ferrite too from laziness, though I haven't noticed a change, I'm probably in ground as mild as JW's, and I stay in Auto too.

I'm curious though since it seems JW is using a prototype coil - JP seems to indicate there were some early problems with the prototypes regarding saturable soils and heavy X components in general. So since we are at a production model now, have the coils been dialed back some to account for this and aren't as sensitive as the prototypes? Or perhaps the opposite, as Simon has ventured to guess in a previous comment, maybe the production units are more polished and even better than the prototypes? I'm looking forward to more testing as people get these coils to find out, especially some comparisons if anyone feels up to it. It would be great to know the differences between the OEM, prototype X, and production X.

Especially looking forward to seeing how they do in salt if anyone out there in NNV has one yet.

If the prototypes end up a lot more sensitive than the production then they might have quite a bit of value to those of us in mild soils. Or maybe there might be a way to mod the production units to be more sensitive if we don't have to deal with crazy hot ground and they are dialed back? Just curious, it's hard to get a grasp on all this right now as I don't think we understood the coils in the review were not the production units we can buy until near the end of this discussion here and it would be good to know what the differences are, if any at all.

21 minutes ago, WesD said:

High Yield at least for me,  seems to take out the majority of the nuggets . I went over a patch in General after doing it with high yield, and nothing more was found. Maybe for specific types of gold deposits or ground types it works better?  Just wondering what experiences others have in General...

Wes, I was stuck in General for a while (due to me not understanding my pinpointer was interfering, I was gone from forums by the time the garrett was released and my Nokta never interfered, so I missed those posts, Dave figured it out for me). I redetected a wash in HY that I had hit in general twice and thought it was pretty much empty, most of the gold was 1/4 gram to 3/4 gram originally. Yet, in HY I was able to pull over 1/4 oz of little bits out again within a few short hours that general had missed. I got one of these on video going over different settings combinations to see if the detector really didn't hear it or I just missed it, and the detector definitely didn't hear it in general. I'll try to find it and post it up when I get home later this summer, it also shows just how big a difference a little gain makes, even from 15 to 18.

  • Like 5

Share this post


Link to post
Share on other sites
Posted (edited)

JP, thanks for that info re using the ferite. I have only used it a couple of times since i got one. The ground we have detected has been tanami desert, tibbuburra, adelaide hills and one area in victoria. In all instances we just did the normal ground balance and then only rebalanced when going to different area. With the new x coil we have been adelaide hills and victoria in one area. This spot in victoria my mate tried the coil as well with my conector lead and on this very hammered spot where we new there was deep gold he pulled a 13g nugget that the 14" minelab coil had no chance of finding untll partially unearthed. Re noise, i have not really noticed any difference and i admit that i am a ground scraper. Skid plates never last very long. The xcoil that i have is i believe flat wound, not spiral wound so what the difference is between the two i do not know as have not used a spiral wound coil. Just another point,  i am not professional by any means and am still learning, but we have been very lucky and those that know me call me tin arse and superhuman ears. Just lucky i guess. I have no comercial interest in these coils, but took the jump early and do not regret it. We will be giving the 10x9" more of a try soon. Yes was hard to cut 14" coil lead but this was done for a special spot we have, where gold now left there is deep. Just need to get health good enough to get back there.

Edited by Travelergold
Spelling
  • Like 1

Share this post


Link to post
Share on other sites
46 minutes ago, Travelergold said:

The xcoil that i have is i believe flat wound, not spiral wound so hat the difference is betwee the to i do not know as have not used a spiral wound coil. 

G'day Wally (Travelergold)  thats not quite right, your X-Coil 18" is a more traditional wound coil (more like the SuperD), spiral wound is much more like flat wound, and there are certainly X-Coils that are Spiral wound type.  All the X-Coils have 3 windings, same as the GPZ coils, 2 RX windings and 1 TX winding in the center, it is the TX winding that is Spiral wound if the X-Coil is called a "Spiral" type coil.  

cheers dave 

  • Like 1

Share this post


Link to post
Share on other sites

Well, I'm a bit in shock after today, JW killed it again with his X-coils more so than ever, it's getting out of control 🙂  I'm sure a post will come from him about our day but he's got some catching up to do on his gold find posts, he's getting so much gold lately since getting his X-coils. It feels to me like every place we go since he's got them it's like he's on new virgin ground and here's me like a rabbit, digging holes everywhere for nothing with my GPX :laugh:

He'll have sore legs from doing too much dancing from today
FeistyForcefulIzuthrush-max-1mb.gif.2e8336d4f49d6823874ff58ca5712b87.gif

I absolutely can't wait for my GPX version of the X-coil to arrive.

  • Like 5
  • Haha 1

Share this post


Link to post
Share on other sites

"I absolutely can't wait for my GPX version of the X-coil to arrive."

 

Let me get this straight.... production X-Coils available in New Zealand... but not in the U.S. How can I get my New Zealand passport??????

Share this post


Link to post
Share on other sites
On 5/4/2019 at 9:48 AM, jasong said:

I've also stopped using the ferrite too from laziness, though I haven't noticed a change, I'm probably in ground as mild as JW's, and I stay in Auto too.

I'm curious though since it seems JW is using a prototype coil - JP seems to indicate there were some early problems with the prototypes regarding saturable soils and heavy X components in general. So since we are at a production model now, have the coils been dialed back some to account for this and aren't as sensitive as the prototypes? Or perhaps the opposite, as Simon has ventured to guess in a previous comment, maybe the production units are more polished and even better than the prototypes?

Ok....there may have been an issue with GB over the ferrite. At the time I was not 100% sure. It doesn't seem to me to have any adverse effects on what I am experiencing with these X coils. I just stopped using the ferrite as my Zed just purred along very nicely without it. Our insanely mild ground I am guessing. I just need to get things straight in my own head before I spill the beans, so to speak, to you guys. I will be back. Cheers

JW 🤠  

  • Like 3

Share this post


Link to post
Share on other sites

Kiwijw,

Well, a very interesting thread to say the least. Appreciate all the work being done on the Aftermarket coils to fill the huge gap in coil options for those of us looking for more than 2 choices. I'm very interested in an option in the 10" - 12" coil category, so we can really work tight areas like JasonG and others have mentioned mentioned! Keep us in the US market updated and include source, pricing,  patch cable options, etc. Wish Coiltek could also make something for us GPZ users...really like their products!:coiltek:

Bill

  • Like 2

Share this post


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 Skookum
      Alright, I know nobody really knows the answer to when there will be a GPZ successor.  Because of that, I'm just pinging for some opinions.  We are currently a VLF only family that's interested in a detector that reduces some of the hot rock music we listen to here in Arizona.  If you were in the market and didn't have a PI detector would you:  A) get a used GPZ for $4500-5000 or B) wait and see what comes out over the next one to several years (depending on what rumors you believe)?  And, a here's bonus follow up question.  Does anybody have a guess what happens to used GPZ prices after the next model appears?
    • By afreakofnature
      I would like to start a thread of peoples opinions on what they found between these two machines with various coils.  I love my SDC and have found my biggest and smallest gold with it (8”).  My GPZ has definitely gone deeper for gold (14”).  I am about even on the total count for each, weight a being different story.
      I understand that if you only have one detector then you want coil options, but if you got both I wonder what would be a better bang for your buck?  A 10” Xcoil at $1000 or a 11”Coiltek at $310.  Thats if they compare at depth and sensitivity.
      Norvic I would love for you to state your opinions here, you seem to have the most on thses just based on other posts.
    • By phoenix
      Clearly, with the huge amount of interest that is being shown in the after market coils for 7000, it`s obvious that there is a market out there for coils other than 14'' and 19".       I don`t take the 19" out much because I have had very little success with it and with my bad wrists it`s just too damn heavy, but Minelab did tell us in the early days of marketing the 7000 that they would be releasing a 11" coil down the track, and now there is another company that nobody has ever heard of making a huge range of coils that are lighter and have so far been very well received by the public.
      What`s going on Minelab?
    • By phoenix
      A couple of months ago I put out a call for the parts list for the WM12 because my original WM12 was taking forever to charge.          At the same time I bought the replacement battery, I also bought some heavier charging cables because I have about half a dozen devices that all use the same cable. I bought cables that were listed as suitable for external hard drives and they were about 6 bucks each. Because I kept changing cables on different devices I don`t even know now what cables came with the WM12.         Anyway, with the heavier charging cables my original WM12 now charges QUICKER than the newer WM12, so I don`t need to fit the battery.        Maybe, if your WM12 is getting sluggish charging, it may not be the battery, it may be the cable breaking down.   Just a thought.    Dave
       

    • By davsgold
      The battery is ok but, it maybe the speaker or some other connection.
      It has static at times and cuts in and out, even when it is clipped to the arm strap on the detector, I have narrowed it down to the WM12 as even when it has headphones plugged in it still does the same as when they are unplugged and with a booster and external speakers it does the same whether they are plugged in or not.
      Is there a way to check if it is just the WM12 speaker or something else inside it.
      It looks like the actual speaker is a replacement part? and would hopefully be cheaper than a whole new WM12
      Any ideas?
      So for now I am just plugging the booster and dual speakers into the back of the 7000 near the battery, but after getting used to being unteathered  by cables it is just a bit annoying when you put the machine down and go to retrieve the target. 
      cheers dave
    • By Jonathan Porter
      Hi Bill, Salt is always going to be a problem, especially if you want to also achieve depth. Deeper targets are slow responses, salt signal kills slow signal responses. My advice on salty areas is to try your most sensitive modes first and go down from there, in this instance it would be High Yield, then General then Xtra Deep Normal before I changed any of my other settings.
      Your Threshold is too low, stick to 27 especially if Audio Smoothing is in the Off position, I would also recommend using Semi Auto mode because Salt signal messes with the Ferrite Balance in Auto mode. 
      There is a huge difference in Salt signal if you go from Normal to Difficult, this also might have been a good option for you dependant on the ground in your area. A lot of people shy away from Difficult especially in quieter soils because there is a perceived depth reduction, however on Half ounce nuggets Difficult actually gives a better signal response than Normal does in any of the Normal modes (HY, Gen or XtraDeep). 
      Minelab introduced the Ground Smoothing mode in the last update, this mode was specifically designed for Salty ground conditions, essentially they are Motion filters so there is a depth reduction when you select either Patch or Salty mode so I tend to avoid them but it does smooth the machine out a lot.
      Finally, having a controlled swing speed helps immensely with Salt signals, try not to suddenly vertically lift the coil as this exacerbates the salt signal immensely. To confirm it is salt signal just lift the coil from detect height to abover your head, as the coil transitions from your waist height to shoulder height you should hear a moaning sound, the level of salt signal is determined by how loud this response is. The other way is to place the coil in the air out in front of you with the coil parallel to the ground then rotate the coil from left to right and listen to the audio response, the greater the noise the greater the salt levels. This will help you to decided how aggressive you need to be in reducing sensitivity via the Gold/Ground type Modes or the use of the Ground Smoothing filters.
      Hope this helps
      JP
       
×
×
  • Create New...