Welcome guest, is this your first visit?
Member
Discoveries
 
Results 1 to 12 of 12
Like Tree1Likes
  • 1 Post By bigscoop

Thread: A GREAT way to TEST & LEARN your machine.

« Prev Thread | Next Thread »
  1. #1
    Charter Member
    us
    treasurelagoon.wordpress.com

    Jun 2010
    East Coast Florida
    An older blue Excal with connector, remote, Skullie headphones, and various coils. Got rid of the rest of my machines.
    8,246
    2671 times
    Beach and Shallow Water Hunting

    A GREAT way to TEST & LEARN your machine.

    The String & Sling Test Method

    Similar to the Foster method but with the added advantage of wet sand and moving saltwater.

    For this test you’ll need about 36” of limp string with a small sling attached to one end. You’ll also need a “shirt pocket” full of various sample targets. (I.e. a nickel, a small gold ring, a silver ring, a pull tab, a small piece of iron, dime, quarter, etc.)

    First, take your machine to the beach at the water’s edge and I set the controls to achieve stable operation in 6” to 12” of moving water.

    Now move back to the wet sand so you can lay your coil flat on the wet sand in one or two inches of moving water. At this point your machine is processing and filtering out the saturated sand and moving water just as it would be if you were actually hunting.

    Now tilt the shaft of your machine slightly back so can swing the string and harness directly over the center of the coil.

    Pick one of your test targets and place it in the sling at the end of the string and simply swing the target back and forth over the center of the coil. The response you get from your machine will be the same responses you’ll get when actually hunting in these conditions. What’s nice about this method is that you can do a lot of playing around with your settings while testing with various targets and studying the responses you get. You can also adjust the swing height of the test targets to better determine just how deep your machine is capable of reading them under your actual hunting conditions and the settings selected. Swing speeds can also be adjusted. And last, you can even move out to say, 12” of moving saltwater and conduct a series of the same test to see how much change the extra moving saltwater might make. I’ve spent quite a bit of time with my machines, especially the Excal so I’ll have a better understanding of the various responses, especially while in the all metal mode. If you’ve never tried this method I strongly recommend that you give it a try.
    Scoop
    Last edited by bigscoop; May 26, 2012 at 05:11 PM.
    hamiddetecting likes this.
    "The key to finding gold is finding places where it can be accessed."

  2. #2
    us
    May 2011
    Halifax, N.C.
    Minelab Excal II, Whites Surfmaster Dual Field, Fisher CZ 6a,Teknetics G2,Deeptech Vista Gold, Tosoro Sand Shark, Minelab Sovereign GT, Sunspot sand scoop
    910
    151 times
    Honorable Mentions (1)
    Sounds like a great way to test all your water machines. I will give it a try on some of the beaches I hunt. Of course it will be during the high tide. I can not miss my low tide hunting time. I would be interested in seeing your depth results from your beaches with the Excal to compare with the results I get on my beaches with comparable targets. You and OBN already have me researching the salinity seasonal effects on on my coils. Man! I love this hobby ( addiction ) !

  3. #3

    Oct 2005
    XLT, Whites D.F., Treasure Baron, Deepstar, Goldquest, Beachscan, T.D.I., Sovereign, 2x Nautilus, various Arado's, Ixcus Diver, Altek Quadtone, T2, Beach Hunter I.D, GS 5 pulse, Searchman 2 ,V3i
    1,601
    118 times
    All Types Of Treasure Hunting
    Might work in the clean sand of Florida but on mineralised beaches its not an accurate method with a motion detector as the coil is not moving so is not affected by the ground (or in this case the beach).

  4. #4

    Feb 2012
    North Pole
    Sovereign GT and Excalibur II, Whites, Garrett, Fisher, Alert, MD,Cscope,Tesoro, Compas, XP, Long Rs
    5,933
    1859 times
    All Types Of Treasure Hunting
    Thank you
    One third jewelry of the World are under sand so far
    Finds2014
    Coins usables=800
    Silver= 8 pieces
    Gold= 2 Rings


  5. #5
    us
    May 2011
    Halifax, N.C.
    Minelab Excal II, Whites Surfmaster Dual Field, Fisher CZ 6a,Teknetics G2,Deeptech Vista Gold, Tosoro Sand Shark, Minelab Sovereign GT, Sunspot sand scoop
    910
    151 times
    Honorable Mentions (1)
    Seems to me, the coil does not know if it is moving, or if the object is moving and the coil is setting still. The coil will still null out (ground balance) the effects of the ground mineralization as the target is moved over it. The target is not nulled out because it is not stationary. So it should work just fine anywhere so long as ground balance has been achieved before you set the coil on the ocean floor. Just my opinion.

  6. #6
    Charter Member
    us
    treasurelagoon.wordpress.com

    Jun 2010
    East Coast Florida
    An older blue Excal with connector, remote, Skullie headphones, and various coils. Got rid of the rest of my machines.
    8,246
    2671 times
    Beach and Shallow Water Hunting
    It's not a "perfect" system, nothing compares to what you learn during actual hunting hours. On the other hand, this is a good method because it introduces the effects of moving salt water & sand, i.e., the target actually has to be seen through the moving saltwater/sand particles/etc while the machine is actively processing/filtering all of these moving elements. So while it is true that the coil isn't moving, the elements are, which keeps the processor actively adjusting to changes in the environment. In my mind, as I applied it to my beach hunting, this is what was lacking with the Foster method.
    Last edited by bigscoop; May 28, 2012 at 07:22 AM.
    "The key to finding gold is finding places where it can be accessed."

  7. #7
    us
    May 2011
    Halifax, N.C.
    Minelab Excal II, Whites Surfmaster Dual Field, Fisher CZ 6a,Teknetics G2,Deeptech Vista Gold, Tosoro Sand Shark, Minelab Sovereign GT, Sunspot sand scoop
    910
    151 times
    Honorable Mentions (1)
    That's the way I see it too, Bigscoop. Seems like a real world test on your machines depth capabilities on a section of beach that you actually hunt will tell you far more about what to actually expect out of your detectors true depth capeability. I am really interested in comparing my excal II with my DF, and my Sand Shark depth in the water this week at one of the beaches I hunt. I can see now I have got to keep a log of this kind of testing for different beaches at different times of the year. Keep things somewhat scientific so as to keep emotion and personal taste in what machine I prefer out of the results.

  8. #8
    Charter Member
    us
    treasurelagoon.wordpress.com

    Jun 2010
    East Coast Florida
    An older blue Excal with connector, remote, Skullie headphones, and various coils. Got rid of the rest of my machines.
    8,246
    2671 times
    Beach and Shallow Water Hunting
    About the only major factor that is missed with this type of testing is, "user coil control" which in itself is a HUGE factor. especially as the sensitivity and coil size increases. For this reason, keep in mind that a machine that is running stable when the coil is stationary may not be as stable once the coil is in motion.
    "The key to finding gold is finding places where it can be accessed."

  9. #9
    us
    May 2011
    Halifax, N.C.
    Minelab Excal II, Whites Surfmaster Dual Field, Fisher CZ 6a,Teknetics G2,Deeptech Vista Gold, Tosoro Sand Shark, Minelab Sovereign GT, Sunspot sand scoop
    910
    151 times
    Honorable Mentions (1)
    Good point. I have not tried a 15" WOT coil yet and hear from some of you guys how much harder it is to run stable even at reduced sensitivity. Although it is worth learning to use once the coil control issues are mastered. I will probably try one on my excal II after my warranty expires.

  10. #10
    Charter Member
    us
    treasurelagoon.wordpress.com

    Jun 2010
    East Coast Florida
    An older blue Excal with connector, remote, Skullie headphones, and various coils. Got rid of the rest of my machines.
    8,246
    2671 times
    Beach and Shallow Water Hunting
    Quote Originally Posted by search and recovery View Post
    Good point. I have not tried a 15" WOT coil yet and hear from some of you guys how much harder it is to run stable even at reduced sensitivity. Although it is worth learning to use once the coil control issues are mastered. I will probably try one on my excal II after my warranty expires.
    Just give yourself time to get use to the WOT....once you do "you'll absolutely love it!" If not, I know of at least two members on this forum who will quickly take it off your hands.
    "The key to finding gold is finding places where it can be accessed."

  11. #11
    us
    May 2011
    Halifax, N.C.
    Minelab Excal II, Whites Surfmaster Dual Field, Fisher CZ 6a,Teknetics G2,Deeptech Vista Gold, Tosoro Sand Shark, Minelab Sovereign GT, Sunspot sand scoop
    910
    151 times
    Honorable Mentions (1)
    Thanks for the info bigscoop. So many of the oldtimers seem to like the big WOT coil that I think I will probably like it too. But not just yet. Got to master what I have first.

  12. #12

    Oct 2005
    XLT, Whites D.F., Treasure Baron, Deepstar, Goldquest, Beachscan, T.D.I., Sovereign, 2x Nautilus, various Arado's, Ixcus Diver, Altek Quadtone, T2, Beach Hunter I.D, GS 5 pulse, Searchman 2 ,V3i
    1,601
    118 times
    All Types Of Treasure Hunting
    The ground/beach isn't moving only the target so results are slanted. Much better to use a test peg (if you can still buy one as dealers didn't really like to sell a product that showed so well how ineffective metal detectors are) or run a string marked in inches through a small disc of wood or plastic, secure well at the back. Then any ring can be dropped down the string on to the disc. The disc with added target is then sunk using a cut tube or just buried into almost liquid wet sand. Within minutes as the tide retreats the sand solidifies. As this is happening pull on the string until the exposed depth markings indicate the target is at the required depth. The "disc" levels up the target as its pulled upwards so you know that the maximum target area is being presented to the coil.

 

 

Home | Forum | Active Topics | What's New

Sponsors

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. This is SO a TEST, I'm trying to learn
    By pat-tekker-cat in forum My Daily Snapshot
    Replies: 9
    Last Post: May 03, 2011, 11:54 AM
  2. Replies: 5
    Last Post: Dec 07, 2009, 04:27 AM
  3. Newb...which machine is best to learn on?
    By Anytime in forum General Discussion
    Replies: 7
    Last Post: Oct 22, 2007, 02:16 PM
  4. Replies: 6
    Last Post: May 25, 2007, 01:45 PM
  5. I hit gold during test the new machine.
    By The Bulgarian in forum Beach and Shallow Water
    Replies: 6
    Last Post: Apr 05, 2007, 09:25 PM

Search tags for this page

treasurenet

Click on a term to search for related topics.
Powered by vBadvanced CMPS v4.1.3