Jennifer

GPZ 19 False Signals

35 posts in this topic

Thank you for making this it's own thread Steve.

1 person likes this

Share this post


Link to post
Share on other sites

Jen, thank you for bringing up the 19" false signal issue. I was beginning to think I would just have to live with it. I got my 19" from Rob in February on my way to the Tucson Gem and Mineral Show. I'll give him a call and order one of the new solid covers.

Share this post


Link to post
Share on other sites
16 hours ago, Jennifer said:

I'd like to thank you all for so quickly helping me on this, I have a sold cover coming from Rob and if I have to use the stock one I will zip tie it like Norm. I knew it wasn't settings as much as the coil itself. You all helping so fast by confirming I wasn't imagining things really helped me get past the psychological block of such a huge transition.... going from my much loved 5000 to this beast is a real big change and it's going to take some time to build that confidence up in my machine again and when the coil was doing this, it took me straight back to the defective 4500 I had days some of you helped on back in 2009.... knowing this wasn't my imagination, makes me confident I can make the 7000 become my new partner like my 5000 is.... 

Big thanks to JP and Norm for stepping up so fast and in PM's

Jen

I do not recommend new users of the GPZ 7000 to use the 19" coil until they are proficient in the 14" and the detector in general. The falsing will be exacerbated by running too much Sensitivity and too high Target Volume, so settings do have a lot to do with it. General is the worst particularly if you roll the center of the coil over rocks, the 14" coil will do the same if treated the same way but is more manageable thanks to less weight and having a solid skid plate. I only use my GPZ19 coil with the solid NF skid plate for this very reason, I also place a 3 inch piece of soft foam each side of center of the coil to act as a buffer between the skid and coils base.

 

7 people like this

Share this post


Link to post
Share on other sites
23 hours ago, phoenix said:

Hey Road Dog. Mate I agree completely any new purchase shouldn`t have to repaired before you can use it, but before I bought my 19" coil I knew I was going to fit a solid plate to it straight away for no other reason than solid coils are way easier to use.    I have not experienced any falsing with my coil and I truly don`t know if it`s because I fiitted the solid plate or if I was just pure and simple lucky with the coil I got.  I hope you and Jen get it sorted.                Dave
19_skid_plate.gif
 

I suspect your mod hit the spot as mine falsed when striking rocks etc at first (sens & vol decrease solved that) but now I have the poly-carb plate can up the sens no trouble.

Folks I`m not into questioning MLs business policies, they are that far ahead of the pack because of those business policies, just a product backyard solution to ensure I max out on chances of getting the heavy stuff and passing on that solution to help others.

1 person likes this

Share this post


Link to post
Share on other sites

I'm with JP, give it a go with your 14 for a bit, I think you will be surprised at the results over your 5000 in your patches. You should be able to run high yield normal or general normal in your location and see the advantage. And then go to the 19.

2 people like this

Share this post


Link to post
Share on other sites

Oh, and coil control is HUGE!

1 person likes this

Share this post


Link to post
Share on other sites

The 14 is a fantastic coil and if you are in a narrow gorge, wash or gully I will start with that first.  It is easier to walk up hills and get it 'near' the rocks.

Give the 19 a go and you can learn a really smooth technique and then when I go back to the 14 it seems light as a feather! :blink:

The 14 will prospect with the best of them (fast and deep) but if you are in an area you want to mine or re-mine then the 19 can't be beat.

Mitchel

3 people like this

Share this post


Link to post
Share on other sites

The Z is a big step up with the 14, another step with the 19. Two diff coils for diff depth ground and as per always ML have come up with the goods. It is up to us to learn how to use these tools, in a few years when ML has taken ZVT further todays teething problems will be as we seen with the PIs from the 2000 to the 5000.

5 people like this

Share this post


Link to post
Share on other sites

Hi JP, I sent those settings to your email address. But just realized I may as well put them here.. I'm probably running too sensitive.  And yes all, I'm going to focus on the 14" for awhile :rolleyes:

PS: I love the way you can see the settings via icon or number from the main screen. :biggrin:

Thx

Jen 

IMG_1682.JPG

IMG_1683.JPG

IMG_1684.JPG

IMG_1685.JPG

Share this post


Link to post
Share on other sites

It would be nice if mineLab would officially sanction some of these aftermarket modifications to the 19" coil as to not voiding the warranty. It's a new design and in true field use all of the end users seem to agree the mods improve performance while not damaging the coil, in fact protecting it more. MineLab should then incorporate some of these free design ideas into next gen. User confidence would in purchase of the coil would improve, fewer complaints and in the end more sales and profits for mineLab simply by saying ok good add it if you feel it helps.

4 people like this

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 Steve Herschbach
      It has certainly been a busy year for me so far, with not as much detecting time as I would like. Still, I have been getting out a little and thought it was time to share a few photos.
      My first couple bits were found with the Minelab Gold Monster 1000 on some scouting runs. I am liking this detector as a grab and go unit for checking areas out quickly. I am not trying to hunt for max performance but instead looking to cover a lot of ground quickly to check things out. I have learned the GM1000 auto sensitivity actually suits me well for this. I just fire up the detector in all metal mode, full volume, and start with auto sensitivity set at Auto+1. Then I just start swinging. If noise intrudes (usually in salt areas) I will back down to Auto+0 (there are just two Auto settings available Auto and Auto+1).

      Once the GM1000 gets out and about people will no doubt note the Auto settings are not the hottest. Which is why I like them. The GM1000 is a super hot machine already, so I am looking more for stability than anything else, and know it will pop hard on any small nuggets I get over. If I were pounding a patch hard I would use manual sensitivity and push it high, but that would introduce noise and require very careful hunting. For me however the GM1000 serves best as a light weight quick and dirty way to check new areas - just grab and go.
      I posted previously about finding a nugget using Auto sensitivity which is where I learned how useful the setting is. Here are two more small nuggets located using Auto+1. Both nuggets banged hard, one at maybe an inch and the other at about three inches. I am not trying to promote or to push the use of this setting, I am simply reporting what I am doing and you can decide for yourself if it is useful for you.

      0.1 gram and 0.4 gram nuggets found with Minelab Gold Monster 1000 running in Auto+1 sensitivity
      I did finally get a GPZ 19 coil for my GPZ 7000 and it was time to give it a go. I tried one area I had hunted before in case a larger deeper nugget was lurking. My first lesson with the GPZ 19 was not how large and deep a nugget it can find but how small and shallow! The only thing I had missed and left to find was this less than 0.1 gram nugget. It was practically on the surface and so gave a small warble when it got close to the coil winding. I was surprised and impressed the coil can find gold this small.


      The next location is one I scouted with the GM1000 and found the 0.4 gram nugget. The spot got my interest so I went back with the GPZ 7000 and 14" coil to hunt it. Turns out it was a nice little patch with some chunky gold! The ground was deep so I mounted up the GPZ19 and hunted it again. I did come up with one nugget I missed before, whether from sloppy detecting or just a little too deep I do not know. It was a little 1.2 grammer at around a foot down. I continued hunting outside my area and came up with another at 1.3 grams.

      GPZ19 Nuggets
      I had removed the Minelab skid plate that came with the coil and replaced it with the closed Nugget Finder cover. I like this cover for uneven ground as it does not get hung up of rocks and sticks as much, but it does rapidly collect a pile of debris!

      The coil did false if banged on a rock and would require care in rocky ground, though I was running it as hot as ever so that contributes to it. I usually hunt grassy and sagebrush country and it does well here just gliding on the grass, though if the grass is deep it will ride up on it above the ground. Still, the larger size gave me this feeling that I had a little extra insurance in that regard and so I used it to hunt over low brush where it might reveal nuggets hidden when others went around the brush. False signals from banging a rock aside I do think the coil actually runs a bit smoother with my Insanely Hot settings. The GPZ19 is slightly too heavy for me for general use in hilly terrain and too large for a lot of the sagebrush areas. It is just the ticket however for covering large open terrain and that is where it will see the most use with me in the future, or for pounding old deep patches. The extra pound was not quite as bad as I was expecting and in flatter ground just my regular bungee setup sufficed. I did try out the Hipstick though and think it a better option for long hours with this coil.

      Well, lots of info there I hope people can get some use out of. It's always nice to be out prospecting whether or not I find any gold - but gold does help! 24 grams or about 3/4 ounce with largest nugget 4.5 grams or just shy of three pennyweight.

    • By PhaseTech
      Sorry about the title, I couldn't help myself with all the monster talk . 
      This video is a bit of detector vs big coil comparison on a decent sized bit of trash (unfortunately). 
    • By Steve Herschbach
      Interesting. This new Youtube channel popped up recently for somebody calling themselves X Coils
      https://www.youtube.com/channel/UCQEHSSBIdi5fWH26IS12v4A
      It appears to be Russian? and they appear to be working on coils for the GPZ. Here is a peek at the 12" x 10". Personally, that's a bit too similar to the stock coil to interest me - I would rather see a 10" x 8". Still, it's interesting that somebody has managed to make some coils that might work on the GPZ without blowing it up. This is one detector that I will have to let others gamble with first on this sort of thing but I knew you would all find it interesting.
      They also are showing a 16" round coil....
       
    • By kiwijw
      Hi guys, I ventured out for the day after watching the America's Cup yacht racing early in the morning our time so still had a good amount of the day ahead of me. Got to my spot which was old turned over dry gully workings high up in the hills. I have been down this gully a couple of times with the Zed before, but each time conditions have been different. Dry sunny & long lush grass growth....not too good for detecting, Dry sunny & grass growth non existent. Perfect detecting conditions except for heat & flys. Today was overcast, chilly but the ground was damp from snow fall last week but that had melted off except for way up top. So I was hoping the dampness would aid in better conductivity for deeper targets that had alluded me in the past. Trouble was the grass growth, although dying off was quite long. Should have taken the brush cutter.
      You will see the humps & hollows from the old timers turning this gully over. My wagon parked up the back. Had a bit of fun getting through to this gully as the shaded sides of other gullies I had to negotiate to get here were still frozen with a bit of permafrost.

      I have in the past found gold all up & down this gully. Both out of the old boys workings & turned over ground but also up on the hill sides out of the workings. Trying to find a run or lead but no joy. Just random deposits The most consistent being the gully floor the old timers turned over. Were I am parked is opposite one of the spots up on the hill side where I came across a wee patch. So I started there with the Zed. I actually started a bit further afield working my way towards the wee patch area hoping to stumble on to some thing. No luck there. Been there done that before but with the damp conditions you never know. I got to the wee patch area & really slowed down. Got a faint little hit.
      The ground was gorgeous to dig. Couple of scrapes & the target had moved. Bugger....wasn't going to be of any decent size. Story of my life. Could still be a shot gun pellet yet.

      But it wasn't. YE HA But look at the size of it......

      I managed one more small piece with the Zed in this area but that was it for the Zed.

      So I brought out the Gold Monster thinking there could be some smaller surface to near surface dwellers that the Zed wasnt zoning in on. I left the GM 1000 in Deep All Metal Mode & sensitivity on manual 10 not knowing how this would handle the damp ground conditions. It was manageable but it was a bit more touchy than if the ground were dry. I just had to be a lot more careful with my coil sweep & placement. There was a bit more falsing signals than I usually get running in 10 on the manual sensitivity but I remained in 10 to have that hot edge & an actual signal was an unmistakable hit over the falsing signals. I was rewarded.
       
      But that too was the only bit I could wrangle out of this old patch area. So I moved on. The grass wasn't helping my cause, especially in the gully floor. I went back to the Zed battling through the grass. The grass itself wasn't too bad. It folded over quite easily with the weight of the Zeds coil without falsing but it was those longer dry stalky bits that were very stiff & wouldnt fold over. I swung the coil up on the side of a turned over pile. It was the face of a pile that I had done well on over the years with different detectors so I went carefully slow. Especially as I had those stalky bits to deal with. I got a very faint hit. Could have been a shoty pellet. You will see an old dig top right & to the right. They were both gold.

      As was this one. But again...oh so small.

      There isn't much bed rock in these workings but there are a couple of small stretches in the very bottom of the gully. I had found a few bits off to the edge of this bed rock with the Zed in the past. So I was keen to run the GM 1000 over it. Well bugger me.....I got a sweet strong hit. One scrape I was on the bed rock.

      Chances of it being a pellet? 50/50 but if you look hard you will see a dot of gold.
      If you are struggling to see it. Here you go.

      The only other chance of pinging some tiny gold with the GM 1000 was on the bald areas of the dig out piles. I say tiny because I have thrashed these from back in my GP 3000 days & small coiltek 10x5 joey mono coils. & the 4500 & NF 8x6 sadie. With good results. You will see a bit of past activity on that mound in the front. You may struggle to see it but center right you will see the Gold monster. I had got a faint signal on a mound back there.
       
      Couple of scrapes & it had moved.

      And it wasn't lead.

      It had been a long day, the sun was going down & temperature was dropping & the ground would be starting to freeze on the shaded sides & I had a few gullies to negotiate to get to the safety of the ribbon of tar-seal that would take me home.
      All up 3 bits for the Zed,on the left, & 3 for the GM 1000 for a total of .5 of a gram The things we do.

      Cheers guys.
      Good luck out there
      JW
    • By Sourdough Scott
      I've been trying for a while to get one from my dealer.I called minelab myself. They are backordered. 
      For as good as your detectors are. Other little things you really SUCK at. WTF Minelab. Get me a ferrite ring and make me happy.
      You spend 10 K on a detector, but can't get a 10 dollar ring. 
    • By madhatter
      Hi All
      I was hoping some of you might be able to clear somethings up for me please.
      When you GB,
      Do you do the "walk and sweep" method and then "ferrite balance"?
      or
      Can you only pick one method?
      IF only one method allowed, then how do you decide which one to use?
      Also, is there any "list" so to speak of showing different gold modes and ground types combinations to help know what depths and sizes you are targeting?
      Eg,
      HY/Normal = ? Hy/Difficult = ? Hy/Severe = ?
      General/Normal = ? General/Difficult = ? General/Severe = ?
      ExtraDeep/Normal = ? ExtraDeep/Difficult = ? ExtraDeep/Severe = ?
      I have found "info" regarding settings for large deep nuggets but what if I also wanted to check for small shallow gold?
      What settings would suit small, shallow bits?
      Sorry to ask so much in one go :)