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Search results

  1. T

    Just a little more help toward understanding the RX Gain and Discrimination sensitivity controls.

    [attachment 173732 V3senscntrols.jpg] Jbow.....here is a simple representative diagram of the typical arrangement of the Whites gain controls. The Rx sensitivity increases the amplification of the raw, unadulterated search-head's receiver loop signal. The amplified signal is then fed as a...
  2. T

    Frequency/Target Difference

    Try this simple check. measure the THICKNESS (in milli-metres) of each coin, log that and its dominant frequency band. That should illustrate the answer for you..........TheMarshall. P.S. Post some of the data if you will, to help others appreciate matters.
  3. T

    Another V3 "i" question... Anne...?? (hint hint)

    ************************************************** Jbow.....Your response .......Have I missed some thing cryptic in Anne's reply? All she told you was "hardware limitations', and the basic facts of power sharing when using 'pulse methodology' for multi frequency transmission, plus GB factors...
  4. T

    Squirrel found this under an oak tree

    Hi Aurium......Interesting ring find that reads with 2.5 kHz as the dominant frequency, so I am curious about its metal/alloy contents. The 'side on' analysis further compounds matters, almost like the response of an item containing a degree of 'Fe'....nickle? The 'just out of the ground'...
  5. T

    3 frequency silver

  6. T

    3 frequency silver

    Magic and other readers..Hi there! Regarding this post on frequency responses and silver. The fact that a coin is silver does not mean that it's dominant curve is necessarily the 2.5 kHz one. There are several interactive factors involved as to what your 3 frequencies analysis will be on a...
  7. T

    Well the E-Trac and V3i have both been blown out of the water with this machine Accuracy of Up To 16 Inches In Depth

    I don't have to get off my horse to detect !!!!!!!!!!! As soon as I've taught the old nag to dig, I'm gonna buy one......TheMarshall
  8. T

    First Gold Ring This Year

    Ron, that was a good recovery considering the gold band was snapped. What is its VDI in air? I wonder if it will read in the 40-50 range, with the band open-circuit? I do like the stone, and the artwork around the mount suggests 'sweetheart' gift associations. As always, whenever I see or...
  9. T

    VDI# in ground verses VDI# in air.

    ****************************** Basically Ron, you are nearer to the reality of metal detecting once you realise it is the ground that a targets is in, what dictates what the final VDI is. As stated by the other gentleman's replies, it is also compounded by the depth at which a target may be...
  10. T

    VDI# in ground verses VDI# in air.

    ***************************** [b]Hi there! First:- Regarding your dilemma about 'ground' having a VDI #, ,,,,,,,,,,,,,i.e. being considered as a target no differently than that of a metal coin etc. Ron, have you ever used a 'multi-meter' such as those purchasable from electrical stores like...
  11. T

    Finding clean ground for ground balancing

    ALL modes need ground balancing.
  12. T

    questions on gold with the v3

    Here is a gold plated on copper wedding ring (What's left of it). 70 years in the ground, roughly dated by other associated finds..... VDI - 56 approx. Red 7.5 kHz peak Green and blue equal. In air TheMarshall [attachment 167371 PlatedRing.jpg]
  13. T

    A large silver first!!

    Congratulations Jeff, and a sincere "Thank you" for your diligence and patience demonstrated in sharing the video of your finds. 34 years....and a lot of memories leading up to your first 'Franklin'. Reminds me of my first find of an American silver Dollar, here in a field in the UK. That was...
  14. T

    Coin on Edge

    Ray, I couldn't agree more with your sentiment.....but with the added proviso! I say that knowledge comes from both learning and working, but wisdom come from the time spent in applying both. So if wisdom is the qualification, then may I solicit your comments on the subject involved? It...
  15. T

    Coin on Edge

    A little knowledge is a dangerous thing. Meaning A small amount of knowledge can cause people to think they are more expert than they really are. Origin First used by Alexander Pope (1688 - 1744) in An Essay on Criticism, 1709: "A little learning is a dangerous thing; drink deep, or taste...
  16. T

    Coin on Edge

    ******************************* [b]Hi Gill....Good post, but I suggest the use of 'RF' is not quite applicable. Metal detecting is about 'transformer action', and 'near field' stuff. Your opening comment triggered recollections of how the principles involved in the subject matter were indeed...
  17. T

    Coin on Edge

    ***************************************** [attachment 166285 Sweep.jpg] This is what you should be aware of. You can normally only detect a coin if your sweep is transverse, rather than 'in line', depending on distance or depth. In air tests will produce varied responses from any direction...
  18. T

    Gold times two...

    ************************************* The pinkish purple one is probably an Amethyst. If they are both the same finger size, then chances are the same young lady was twice as sad as you were happy. If only you could mend her broken heart? ...............The sentimental Marshall...
  19. T

    v3i gives very inaccurate depth readings

    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dear Heavy. You cannot measure depth or distance using a metal detector on arbitrary sized metal objects. Indications are RELATIVE.......to a one inch diameter coin. The concept of roughly indicating the depth of an artifact, is based...
  20. T

    Problem with beach jetty....

    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~## Hello again FERD......and thank you for your reply. I am impressed ........I still wonder why you added a positive off-set to your ground balance.....by that I wasn't meaning to be critical (in case my previous post may have read that way) but rather I was very...
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