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Hi everyone,

I've been lurking and reading a while, and ended up purchasing a well-used GPX 5000 recently. After taking it out a few times, I have a question that feeds into a few other questions.

Is the detector supposed to react very loudly if it's tapped/bumped against bushes, rocks, etc? My assumption is "no," but I wanted to make sure I wasn't just experiencing something that's normal. 

By "react," I mean it beeps as if I've swung over something HUGE and metallic.

Assuming this is not normal - what are likely causes?

1. I've used two different coils with the same result.

2. I have the coil wire wrapped pretty tightly and secured with velcro wraps.

Could the problem be a loose/faulting coil connector into the control box?

Thanks for the help, and looking forward to learning more!

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Mine reacts similarly for sure, but it's something to get used to. When you approach vegetation, proceed at a very patient pace compared to however you detect in the open. Some noise is sure to happen if you're careless even in the slightest when bumping and scraping across sticks and rocks. Also, be aware of bumping the cable near the control box with your leg as you swing and fatigue builds.

However, be assured that your detector will react appropriately if you happen to swing it over detectable gold in the midst of a hail of sticks. Just look for those repeatable loud tones that make you swing twice, three times, and as many more times you want to swing over it until you dig it up!

Unless of course, despite all the adjusting of settings, all the care in the world and a tightly plugged coil, your detector won't stop making baffling loud reactions. In that case, I'd recommend another attempt at an auto-tune/noise cancel and a readjustment of your volumes.

Hope your detector is alright and that this may help.


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contact minelab for exact information. i did not have those issues when i had my 5000. so much is speculative, go and ask the manufacture for the straight scoop.

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Are you using the coin/relic soil/timing? DD coils or Mono?? I know that when I use coin/relic timing on soil that is more mineralized, you can not swing the coil without it reacting like there are large targets everywhere.  Try another timing and see if it helps.

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Also make sure the cable is firmly attached to the shaft down near the coil, if you bump into things and the cable moves, that can set it off too. Also consider getting a cable guard that goes next to the box. As mentioned above, bumping the top end of the cable can set it off as well, and the guard protects the cable connector from being bent when you put the detector down on the ground.

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I dont have that issue, and you shouldn't if you are in factory preset settings. I use somewhat hotter settings hunting but I would try the presets to see if it is responding as it should. I have also noticed that if items hit your cable, or if you have a loose cable loop that can move close to the coil, you may hear falsing. If you are close enough, have a dealer evaluate if it is working as it should, or minelab, that will answer your questions

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3 hours ago, Minerjosh said:

I only experience this problem with my 10x5 coiltek joey mono coil. My commander coils and coiltek elite coils don't have this issue. 

Then it sounds like a bad coil to me. Even if it was good, coils and cables degrade. If the cable has a sort it can sometimes be located by wiggling the cable. If the fault is internal, like a loose winding, unless you are a wizard it’s done.

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13 minutes ago, Steve Herschbach said:

Then it sounds like a bad coil to me. Even if it was good, coils and cables degrade. If the cable has a sort it can sometimes be located by wiggling the cable. If the fault is internal, like a loose winding, unless you are a wizard it’s done.

@amitchia ... and there just happens to be some good and low-cost coil models for sale in the classifieds here now too- I especially liked the 8” mono.  It would be a good one to test, but also complement the other coils you already have if they are still good.

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19 minutes ago, Steve Herschbach said:

Then it sounds like a bad coil to me. Even if it was good, coils and cables degrade. If the cable has a sort it can sometimes be located by wiggling the cable. If the fault is internal, like a loose winding, unless you are a wizard it’s done.

Steve- can a coil with a loose winding be repaired by carefully injecting small amounts of expanding foam into it, or is the interior solid already? 🤔

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15 minutes ago, GotAU? said:

Steve- can a coil with a loose winding be repaired by carefully injecting small amounts of expanding foam into it, or is the interior solid already? 🤔

Like I said, if you are a coil wizard...... I'm not. It all depends on the coil, and what really is wrong. If it is dead anyway it can't hurt to try something before it gets tossed. I have zero patience for a coil that misbehaves and do not trust that they are performing as they should, so unless they are under warranty I just toss them. After making sure it was not the cable etc. etc.

If you work in water or wet environments water intrusions can create issues. My favorite old Nugget Finder 16" mono was an old style fiberglass model. Microfractures build up and allow water intrusion, and the coil eventually got flaky from being used for weeks in rainy weather. Something like that might take a little baking to dry out. But I just got a new coil.

Think of the detector as the sports car. It needs quality accessories in good operating condition, like headphones and coils, to actually get the top performance.

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      I first hit an spot where I’ve pulled small gold and trash before in fairly loose, sandy soil. I had the GPX cranked up as described, and used the coil as a bulldozer to plow through and flatten everything. There is no knock sensitivity, but tiny hot rocks will create some noise, and so scrubbing may not work, but for tiny gold it is one of my main methods. If I can only hit a speck at one centimeter, it only stands to reason that removing a centimeter of soil exposes a whole new layer to the windings. So in loose soil, I use the coil to push stuff around and work the coil into the sand. On sidehills I pull soils downhill with the coil, scraping away. If I can’t get the detector to go deep enough, then I will make the gold more shallow. I work slowly and methodically, and I nearly always succeed in finding gold I missed the time before. I just keep at it, getting more down and dirty on each run, and always, trash is going away.
      1 hour 45 minutes to first nugget, 0.191 gram on my new super accurate scale I bought just for weighing tiny bits. By noon I had three more bits, the smallest 0.052 gram.
      My big tip for small gold and trash? Have the right tools. I put together a long handle pick, and a small shovel, both with magnets attached. I get that tiny signal, I get it to move but scraping with foot or digging. As soon as it moves, 11” coil on edge, get an idea where it is, then stab it with the magnet. I keep the magnet on the pick head, and half the time the signal is gone and on magnet just from digging. I’m not getting down looking for the target unless the magnet fails. Since the majority of targets are ferrous, this saves a lot of looking for targets, and getting up and down. The shovel is for deeper holes, with magnet on end of handle. Do this, and you can work trash without killing yourself. And when the magnet fails, you better have a scoop, and have learned to master scoop recovery. This all only works if you get efficient and do not waste time with bits of invisible wire.

      Short break at noon, swap to 17” mono. I hate to talk about this coil as you all can’t get one quite yet. Sorry, no idea when either. But it is a sweetie, may end up my most used coil. It’s light as a feather, and has some kind of flat winding that makes it nearly as hot as the 11” on small stuff. I’m serious. The coil does not punch as deep as the GPZ 14, or so I’m told, and I’d not doubt that, as it is designed more as a patch hunting coil. It covers ground like crazy, but will hit the tiny bits that can lead to a patch. Could be a killer meteorite coil, though I’m not sure how Geosense handle meteorites. I suspect it will be fine. Anyway, most of my prior testing was doing just that, covering ground, and it is sweet for that. This time I went for deeper gold in the salty ground, and as noted before, it’s not unlike running a GPZ14 in salty ground.
      I’ve hit this ground a long time, and big nuggets are first to go, but its early spring, so I went after places where the grass was too deep on previous visits. Again, it’s this acquired knowledge that brings success, not so much magical new machines. This area was low, with lots of salt, so you get a long dragging hi tone one way, and a long dragging low tone the other way. The slower you move, the less moan and groan. Better yet, by angling directly into and away from the salt source (usually the gully bottom) you can even out these opposing forces, to get a smoother audio flow. It’s all about very slow, very careful coil control, and a tuned ear. Most people need a beep to stop them, but I hear every bit of the audio flow. My brain finds the pattern, and then notices breaks in the pattern. In a nutshell, there are the “normal noises” that make up the background flow, but every once in awhile something different happens. A little extra edge, a warble, maybe a pause in the threshold. Why? The longer I’ve hunted the ground, the more accurately I can answer the “why” through countless similar targets having been dug. I slowly tune to the ground and target mix, and if it is questionable, just dig it. Even if not, I’m often digging just to make it go away, even if I know it is trash. Every trip I bring a garbage bag, and clean up stuff. It’s all about a long range project to uncover more gold.
      Well, that deep grass area paid off. The 17” got a nice nugget at depth. No, I did not measure the depth. And I don’t like guessing. Just trust me when I say I thought this was impressive for a big mono coil in salty ground. The nugget weighs 1.099 grams – nice! The same spot gave up two flat pieces, one 0.512 gram, the other 0.792 gram. I was very pleased with this result, as all had some depth to them.

      Deeper digs with 17" mono
      That little spot played out but I kept at it until I got a low battery signal at 4pm. Nice thing about the 6000, you get time after the first warning, so I detected another 20 minutes before taking a break. Battery swap, back at it, and one more nugget at 6:40pm. That’s a long day – done!
      Next morning I switched back to 11” mono, but my small gold spot was playing out, and by noon all I had was trash. Finally picked up another nugget after lunch, 0.538 gram. Now, I’m out of shape on top of everything else, and lack of gold is making me want to quit. So I played the “just one more nugget" card, and went back to 17” mono. That little trick got me to 4:30 and one last nugget, 0.296 gram.
      So a quick overnighter, nine nuggets, five larger with 17” mono, and four smaller with 11” mono, at 4.293 grams total.
      I’m sure I have not covered everything is this long ramble. Feel free to ask anything you want, and I’ll answer the best I can. Just do not think because I like the detector I’m trying to sell you on it. I honestly am not concerned about what detectors other people buy and use. I just use what works for me, and this is working really well for me. No claims to any magic, just a really nice swinging machine, which will get you GPX 5000/GPZ 7000 type ballpark performance, one way or the other, but ballpark, and that’s good enough for me. It’s one of several of the most powerful gold detectors on the market, and all of them have fan clubs. Even this one, says fan number one. If you prefer to use something else, good for you! If anything I said resonated with you, then maybe take a look at the GPX 6000. I hope this helps.
      Please do not repost without permission. Thanks, Steve Herschbach 2021

      Nuggets found April 20-21 in northern Nevada with GPX 6000
      Here is about a 1/2 ounce of California (left) and Nevada (right) gold I found while testing GPX 6000 prototypes:

    • By Jonathan Porter
      I’ve been detecting for gold for a VERY long time and have seen a lot of crazy things happen over the years but this recent experience takes the cake. On the same day but prior to when I filmed my son Joshua digging some gold with the GPX 6000 I heard Josh calling out to me to come take a look at what he was holding. I was perplexed to say the least because it looked like a big dead stick, so I just assumed he had some sort of interesting critter sitting on the stick and wanted to show me. When he got closer I couldn’t see anything that might have attracted his attention but he was looking at the stick very closely, so I just assumed it must be a tiny critter.

      Then he started mumbling something about getting a signal and how he had kicked the stick away and the signal had disappeared so he went and waved over the stick again and pow a signal coming off the stick!! At this stage I’m thinking a 22 Bullet or a slug gun pellet wedged in the wood.

      Then I saw what it was that had got him so excited!! 😝 

      Yep thats a small nugget wedged into the wood, how the dickens it got in there is anyone’s guess. I’m thinking it was in the gravelly wash around the trees root bowl and the tree had been blown over during a rain event (it’s obviously very old) and maybe a nugget had come up with the root bowl and then been washed across the trunk with the nugget then wedging itself into the crack!!
      Anyway it seems the GPX6000 can find gold in all sorts of strange places. 😂 

    • By VicR
      I picked up my 6000 on Monday and have had 3 days of trying out the new toy.
      First day - i took it to a local prospecting area well known for EMI and tried the 11" mono - the closer i came to the EMI area the less stable it became till it was unusable so i switched to no threshold and lowered the sensitivity - which seemed to work as it was a lot quieter but was capable of sounding off on buckshot. The second day - in same area i tried the 14" DD which totally tamed the EMI so i could run it on manual 10 sensitivity with a threshold. So i am wondering which is better - 11" mono with no threshold and low sensitivity or 14" DD with high sensitivity and a threshold?
      Also on the second day a friend had his GPZ7000 and we tested a sub gram nugget and a 3 gram nugget. Both machines  achieved very similar results - for example on the 3 gram nugget both detectors gave a iffy signal at 24cm but very clear signals at 23cms. Not a real scientific test i know but left us thinking both machines were very similar performance wise.
      Today i went to the beach to see how the DD coil performed in wet and dry sand - while there was occasional background warbles (i used no threshold) there was no problem in hearing targets loud and clear. Not sure i would use it for my beach work because of the lack of discrimination but for people who like digging everything, are hunting chains or need a bit more depth - it worked. Note - this was not a black sand beach.
      Likes -
      With the 11" coil its a breeze to swing - a bit heavier with the 14" but still good.
      No Sore Shoulder - & with no cords easier to be ambidextrous
      Set up time and tuning time is minimal.
      No cords , no battery back pack, no bungy cords - i did not get caught up in thick scrub.
      Headphones are comfy.
      Headphones paired easily (better than the Equinox).
      Confidence in performance tuning.
      Option of having threshold or no threshold. (switched to no threshold when pin pointing - made it easier sometimes with the 14" coil).
      Did i mention how light it is?
      Dislikes -
      None so far.
      Could do better (no deal breakers)-
      A case for the headphones would have been nice (like Equinox).
      Also a car cigarette lighter charger is not included.
      Wires on Headphones look pretty flimsy - time will tell if they are up to the job.
      A few times the rubber headphone socket protector unintentionally opened - its not a real firm fit.
      In summary - I have a smile on the dial - just need to get to some decent gold fields - maybe will be able to do that this weekend.
    • By Condor
      Are JP et al trading in their Z7000s in favor of the 6000?  Is this the "Go To" machine for everyday prospectors?  From initial reports it would appear the 6000 excels at sub half gram nuggets in OZ soils, but isn't expected to compete with the 7000 on bigger/deeper gold.  Here in the US, will I have to sell a kidney for the luxury of having both detectors?  It may be some time before us CONUS prospectors even see the availability of such a machine, do I sell the 7000 before the market is flooded?  Does anybody know what the recovery time is for a kidney donor?
    • By Steve Herschbach
      Apr 19, 2021 The Gold Rush Guy - "Great to finally get the new Minelab GPX 6000 and take it out for a run. Very impressed with its sensitivity, especially the depth of even small pieces of gold. Apologies with the video quality. Will rectify in future hunts."
    • By Steve Herschbach
      The first video I've seen by somebody that knows stuff. 
      4/18/2021 Digging with PhaseTech - Well, it is finally out, and finding plenty of gold already! The Minelab GPX6000 was a fun project to be involved in. Here's the first of many videos where I will showcase finds, tips and techniques, comparisons and just having fun with it in the field.
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