Coil question
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Thread: Coil question

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  1. #1
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting

    Coil question

    I have an ATpro, with 2 different coils..The small 5x7, and the larger Factory coil..I have always used the smaller coil on it with no problems..So I put the larger one on just cuz I keep reading about the depth gain..Here's the thing, if I tap the coil on the ground (not real hard) the detector will beep..My smaller coil does not do this, and neither do any of the 3 coils I have for my Ace 250..Is this normal Its not a problem or anything, but it does bug me..Also this larger coil seems to false a lot more often than the smaller one..I use a sniper on my Ace almost exclusively, so I dont have alot of experience with larger coils, and their behavior...I remember my Old trusty Whites 5500 series 3 would do this, but I thought with the modern coils we have this was a thing of the past...Thanks for any replies on this...Maybe I just need more practice, but it seems a bit harder to pinpoint also...
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  2. #2
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting
    Still curious guys if this is common....
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  3. #3

    Aug 2017
    SW MO
    Garrett AT PRO, Garrett Ultra GTA 500, Equinox 600
    595
    1327 times
    Metal Detecting
    Did you do a reset on the machine when you switched coils? Both my coils will false if they are reading something then get bumped on the pro. Always been that way.
    BLK HOLE likes this.

  4. #4
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting
    Yes, I did..Ok, thanks alot..Its not really a problem, just something I had not seen before on the Garretts...
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  5. #5
    us
    Mar 2012
    Spring TX
    CTX3030/F75LTD/ Garrett AtPro/ XP Deus
    6,407
    989 times
    All Types Of Treasure Hunting
    depending on saenstitivity and ground conditions, this does happen on Garretts.

    Wayne
    Treasure_Hunter likes this.

  6. #6
    us
    Jan 2016
    NW Arcanslaw / SW Misery
    Minelab X-Terra 705 Gold / Garrett PropointerAT.
    2,611
    5316 times
    All Types Of Treasure Hunting
    I think what you are picking up from a coil bump is a the slight flexing of the shaft. It's a side effect of the extra depth and actually not that uncommon. All you can really do is make sure your ground balance is set right, and maybe turn down your sensitivity a bit.

    Every detector I've owned would do that if I hit a rock, tree, tall clump of grass, or clip the ground mid swing while trying to get my coil as close to the ground as possible.
    BLK HOLE likes this.
    ďDuring the gold rush its a good time to be in the pick and shovel business.Ē Mark Twain

  7. #7
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting
    Hmm, ok Thanks Guys...
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  8. #8

    Jul 2013
    1,779
    1190 times
    Banner Finds (1)
    I have the Pro with the small DD coil on and mine will do the same thing. When I hit a tree root or stump in the water itíll beep when it gets bumped. Or when going in and out of water itíll beep. Itís Normal.
    BLK HOLE likes this.

  9. #9
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting
    I never had my small coil do that, but the big one sure does..Thanks
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  10. #10
    us
    Apr 2007
    Gulf Coast, Texas
    AT Pro, Bounty Hunter Land Star, Ace 250, Garrett 1350
    959
    76 times
    All Types Of Treasure Hunting
    I never had my small coil do that, but the big one sure does..Thanks
    ENGLISH, SPEAK IT, USE IT.......
    Better Living Thru Chemistry
    Live Long, and Prosper

  11. #11
    us
    It is what it is, until it "Is" what it is.

    Aug 2013
    274
    169 times
    galli, its a very common issue with large and larger coils, the coil represents an antenna, one sending one receiving, (large coil = large antenna) when you bump them or shock them (over swing then pull back too hard) the bump or disturbance is picked up after being overloaded or over amplified. All detectors can have this issue.
    Good luck!
    Stay Gold!
    Opie
    A2coins likes this.

  12. #12
    Charter Member
    us
    Tommy

    Dec 2015
    Ann Arbor
    Equinox 800
    24,301
    31192 times
    All Types Of Treasure Hunting
    Honorable Mentions (2)
    great post

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