Quick Draw II in wet sand?
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  1. #1
    us
    That weird red-headed guy

    Nov 2009
    Sequim, WA
    BH Quick Draw II
    97
    104 times
    Metal Detecting

    Quick Draw II in wet sand?

    So I've got the Quick Draw II and supposedly it can be used in damp sand and very shallow water, yet every time I try and use it at a beach down in the damp sand, it goes nuts, no matter what I put the settings on. Anyone have a setting they use to keep it from beeping itself to death? Or would switching the coil to something like a DD work better?
    Everyone but me seems to find the gold.
    Cleaning up the local parks, one pull tab at a time.

  2. #2
    us
    Director-Search & Recovery Team of Oakland County.

    Aug 2005
    In Michigan now.
    Excal 1000, Excal II, Sovereign GT, CZ-20, Tiger Shark, Tejon, GTI 1500, Surfmaster Pulse, CZ6a, DFX, AT PRO, Fisher 1235, Surf PI Pro, 1280-X, many more because I enjoy learning them. New Garrett Ca
    13,398
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    All Types Of Treasure Hunting
    When they say you can use the BH in the damp sand they mean swinging it. Not using it operating. The only setting I know to work is to turn sens way down and disc way up so it can maybe go down an inch. A DD won't help. It will work in the dry sand however. The damp and wet sand is for the real detectors that are designed for use there. Sorry.
    Last edited by Sandman; Jan 05, 2014 at 08:54 PM.
    (C) Sandman, 2005. All Rights Reserved.
    "TIME IS THE ONLY THING YOU NEVER GET BACK, WHY WASTE IT SWINGING A DETECTOR THAT ISN'T UP TO THE TASK."

  3. #3
    us
    Dec 2012
    lower hudson valley, N.Y.
    safari, ATPro, infinium, old Garrett BFO, Excal, Nox 800
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    Sadly many manufacturers state that their machines will work in the wet salt sand or saltwater when they actually aren't very efficient there at all. NO single frequency VLF detector works well in saltwater, not even the AT Pro. The salt is conductive and drives single frequency VLFs nuts. Like Sandman says they will work, but you will achieve such little penetration that it is hardly worthwhile. The salt sand and water is simply the domain of multi-frequency VLF and PI machines.
    Ya won't find nuthin' if ya don't hunt

  4. #4
    Charter Member
    us
    TerrysKnifeStore.com

    May 2010
    White Plains, New York
    Minelab GPZ 7000; Equinox 600 -- Teknetics EuroTek PRO -- Grave Digger Tools Nemesis shovel, Sidekick hand digger -- Bunk's Hermit Pick
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    The quest for the perfect metal detector to this point has been quixotic. Minelab, has come the closest to building a fully submersible beach machine that can discriminate out iron in wet sand and saltwater. The “Excalibur” uses Broad Band Spectrum, or “BBS” technology, and retails for about $1,500.00. According to Minelab, their BBS operating system, “simultaneously transmits, receives and analyses a broad band of multiple frequencies to deliver substantial detection depth, high sensitivity and accurate discrimination for a wide range of target types.” The key takeaway here is “multiple frequencies.” Unfortunately, radio waves regardless of their frequency still have to be filtered and balanced in heavily conductive wet-ocean sand and highly mineralized saltwater. That limits the systems depth capabilities.

    Single frequency VLF machines (Very Low Frequency), have even more limitations in the harsh saltwater environment. Take for example the Tesoro Lobo Super Traq. This VLF single frequency machine (17.9Khz) is one of the finest and deepest gold nugget finders on the market today. The Lobo Super Traq, is capable of finding BB-sized gold nuggets six-inches deep in heavily mineralized ground, or a nickel in dry beach sand at 12-inches. Put that same nugget – or even the nickel, seven-inches deep in wet saltwater sand and the Lobo could walk right over it while chattering, or maybe without seeing it at all. Why?

    The magnetic iron sands (“Black Sands”), salt, and high concentrations of other minerals in the water and sand conspire to bounce the radio waves away from the target. Conductivity and mineralization act like a shield around the target and create white noise that must be filtered electronically. Think of it as turning on your bright headlights in a heavy fog at night. All that powerful light is diffused and causes a complete white out – you can’t see anything three-feet past the hood of your car! However when you turn on your yellow fog lights, you can see a little further – not as far as you could in clear daylight, but further. That is why all radio wave machines must be “ground balanced” or tuned, to maximize their depth potential, and why BBS filters and multi-frequencies are so effective – yet still limited.

    Unlike BBS and VLF metal detectors, which constantly send and receive thousands of low frequency radio waves per second, a Pulse Induction (PI) metal detector fires high-voltage pulses into the sand several hundred times per second. If no metal is present the electric pulse decays at a uniform rate with no anomalies. When metal is present a small “eddy” current flows through it causing the voltage decay time to increase, which creates a measurable anomaly. Unlike VLF radio waves, electronic pulses are impervious to the effects of conductivity and mineralization, and are unaffected by salt or black sands.

    PI metal detectors give the user superior depth capabilities in all metal detecting situations and soil conditions. Using the same heavy fog at night metaphor that I referred to earlier, pulse induction is like headlights that cut completely through the fog as if it were not there at all. The trade-off for that added depth and clarity is the inability to discriminate, or block out iron targets that you generally don’t want to waste time and energy digging. While a pulse induction machine detects all metals without discrimination, the minute differences in the signal tone and quality can give a skilled and experienced operator a clue as to what the target may, or may not be.

    Will one machine do it all? Not in my opinion. I always advise new beach metal detecting hobbyists to have a VLF machine for dry sand (as well as their other dirt detecting needs), and a PI machine for the water and wet-sand (and deep farm field and relic hunting). In truth, it all comes down to what you prefer and can afford. Good Luck!

 

 

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