Jump to content

Recommended Posts


I don't seem to have that issue with my ATP. Only time it masks out with iron is if both targets occupy the center of the coil the iron will dominate and you will only hear iron. Have talked to Garrett on that?

I do want people to know the ATP is not a deep machine with the stock coil but for coin shooting it is still a viable unit. Considering the release of the Simplex the ATP is not the best deal in town.

  • Like 1
Link to post
Share on other sites

Why do you only sweep one direction over the target? I've actually found targets similar to that using the AT, where there might be a slight blip of conductive, that settles into a nice high tone when you isolate it.

  • Like 3
Link to post
Share on other sites

Do you stand in the same spot when you swing? Think about it you take a step forward..... it is true you might have got it coming from the coin side first...The test was based on the best odds of coming across iron first. There are different senarios in detecting and this is just one of them. 

That test is a real eye opener for guys who use those detectors in iron. When the swing speed is introduced masked targets start disappearing to the detector. The user is none the wiser because he never  heard them. 

5X8 coil suffers the same fate.

  • Like 1
Link to post
Share on other sites

I swung from nail to dime and was able to get the time pretty close and it finds the dime without issue. Only time it is blind is when the targets occupy the same detection area then iron wins. I use a rusty old square nail on the test. The same blindness is on my Tejon with the 10x12 dd. The AT series 5x8 is also a dd. Do you have or access to the concentric coils for them?

I pointed out a quirk with DD vs Concentric coils where DD coils would detect steel bottle caps (round flat steel) would ring higher and out of range of ferrous target range and end up with dimes+ but can't find the post on that.

What you show is a problem but I just can't replicate it here. 

Could emi cause that?

  • Like 1
Link to post
Share on other sites

Are you using a buried dime? His dime is 5 inches deep, while the nail is on the surface I believe. If both the coin and the nail are in the same plane then the AT will find it.

  • Like 1
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 mn90403
      The wet beach sand didn't produce much early this morning so I took a few swings around the dry sand on my way back to my parking place.  I was using Park 1 at 20-21 and switching between multi and 4khz to know what I might be digging.  I do think the multi is deeper and I found some clad in the same location with maximum depth of 8" I think.
      What is the little heart/star piece?
      I put the coins in my pouch and didn't know I had a silver until I checked them at home.  I don't know exactly which hole I dug that resulted in the quarter (1946).  The nickel is a 1936 Buffalo and the penny is 1952. 
      I'll go back.

    • By GB_Amateur
      I've created this short (fortunately for you the software won't let me enter more than 3 questions!) poll.  Comments and further elaboration of your usage, etc. are of course welcome as reply posts.

    • By Dan(NM)
      I spent about 5 1/2 hours digging in the dry beach area of the lake. My goal was to dig as much trash as possible and it worked out great I was able to nab a few keepers among the junk, silver toe ring, 2 silver earrings and a silver chain with the pendant. Also dug the usual clad and junk jewelry as well.

      Ran the Nox 600, my settings were:
      Park 1
      F2-0
      Sens-
      Recovery-3
      Man GB-4
      1-Tone

      I dug everything from-2 up





    • By South Padre Treasure
      Received my EQ 600 back last week from repair service, they did not indicate what the problem was but, stated they tried my coil and their coil to test and determined the problem was in the Pod.  (note i was getting a CD code then it would turn off, then i got a CD and ER11 code and would turn off)They stated it has been replaced and tested and submerged for water ingress test, passing all test. 
      Due to work, I have been unable to try it out, they just opened up our county beaches Tuesday so maybe when I'm off Monday or Tuesday I can give it a go! I also found a good deal on a 15" coil brand new, will test it as well.
      I see they have done the upgrade with the 4khz frequency. That started me to think, if Minelab can upgrade my 600 pod to include 4khz. then doesn't it stand to reason they would be able to upgrade my 600 to include either the 20 khz or 40 khz or both frequencies making it a 800? Both are using the same coils, battery, same housing etc. just programing I would think. When I spoke to them on exchanging my 600 that was defective to a 800 I was informed they do not have a exchange program even if you wanted to pay extra for it. Just thinking if its that easy to install another frequency why isn't the 20khz included if most of us are searching for gold rings at least I am. Then the silver hunters would be happy, ring hunters happy as well..oh forgot then you would not buy a 800. silly me!
      If I can get out and run a test I will let you know how it goes.
      Happy hunting everyone enjoy your weekend!
       
    • By Steve Herschbach
      Jeff and I had a couple PM messages back and forth about Iron Bias, and what it does. Jeff made mention he thought it took items with mixed ferrous and non-ferrous responses and reduced or eliminated the non-ferrous response, leaving only the ferrous response.
      I usually set Iron Bias to 0 unless I forget and leave it at some default setting. I hunt full tones and between high 39 spikes and audio "tells" while in full tones I generally do not have much issue with ferrous tricking me, and so it has not been anything I have investigated much. The bottom line is I was feeling vague on exactly how this control acts in practice.
      As we all know bottle caps with the normal FE settings had a habit of reading in the mid-teens near 13. I have also run into issues with large flakes of decomposed steel cans in old mining camps that read in the teens. I'm not worried too much about bottle caps, but in some old camps that rotted tin can debris can really mess an area up.
      Minelab introduced the new FE2 setting that allows for more range on the control. Jeff's message made me wonder - is Iron Bias reducing the non-ferrous false signals, or increasing the ferrous signal? This short video shows the problems and the solution, and answers this question.
      I start with a piece of tin steel that gives a non-ferrous reading around 15 in normal FE mode, and show that from FE0 to FE9 the target gives a clean mid-tone with no ferrous report of consequence. The old FE setting was ineffective on this stuff.
      Then I go to FE2 and show that increasing the setting rapidly shifts from a non-ferrous reading to a ferrous reading. At 0 it's clean non-ferrous. Just going up to 2 makes it a mixed ferrous and nonferrous reading, at 3 it's mostly ferrous with some high tone mixed in, and at higher settings it is a solid ferrous reading of -7.
      To me it looks simple. The control is variable, and a particular item can be adjusted to read solid non-ferrous, or to give mixed tones, or to read solid ferrous. It is not a matter of just decreasing the false signals. More like converting what were non-ferrous signals to ferrous signals in a continuous range.
      This all goes back to the ferrous versus non-ferrous range having a full overlap, and much like how you can use the tone break to decide what items near target id 0 read ferrous and which do not, the Iron Bias offers a secondary control that does the same with these problematic items.
      The part I do not show? There are good items that will do the same, and I need to try and find one. In theory there is a good item that will give a false ferrous if this setting is too high. Otherwise we would not need the control. Just set it to max and forget. So the real question here that I think remains is not about the ferrous. The control will clearly help with making ferrous items read ferrous. But what about the reverse? What non-ferrous items will be revealed by leaving this control at a low setting? I take it as a matter of faith these items exist and so I leave the control low at or near zero. But how common are they? Am I suffering needlessly? What are the risks of setting the control too high? Minimal risk, or high risk? The best way to find out may be to simply go detect, but take the time to double check items at the full FE2 setting of 9 to see how many might read ferrous when they are not.
      Be patient - it might take a minute for the video to start once you hit go.
      fe-v-fe2.mp4
    • By pinpointa
      Hi Guys,
      With the equnox can you accept everything and give the vdi you don't wan't a no tone and alot different tones to the ones you wan't. Like on the Whites v range.   Regards .
×
×
  • Create New...