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I love the extreem focus that's needed,to hunt micro-gold in moderate black sand,an extreem Mediterranean salt water.
I have progressed to sensitivity 24,the first 20 mins of hunting,I have to settle my swing,otherwise I have 3 types of falsing, bobing coil,extreem SALT,BLACK sand an in some areas, I also have interference from black clay,if it's to close to the surface, after 4 hours my brain is fatigued..
2025-11-5 12-5-28.jpg (205.83 KiB) Viewed 180 times
In this case......... the M9 coil is the absolute loser......of the three coils.
BUT........ there is: "physics-absolute" justification for this phenomenon.
Time to 'physics-educate' the General Public.....for better understanding....AND....better real-World success!
And what I'm about to explain .... is true for any/all brands of detectors..........especially understanding their coils///differing coil-sizes.
Here is a clue (for better understanding): If you place a object (say: a dime) on the ground....... and you sweep ANY of those three coils (M11, M9, M8) over the dime....... and the coil is TOO close. , . , . , . , . , . , . what will you hear? You will hear the infamous: 'triple-beep'. Three beeps. By no accident. WHEN/WHERE do those 3 beeps take place?
Answer = As you are sweeping the coil..... when the dime is under the outer edge of the coil = First Beep. Then...... when the dime is under the center beam of the coil...... you will hear the = Second Beep. As you continue to sweep the coil...... when the dime is under the opposite outer edge of the coil....... you will hear the = Third Beep.
So......here is your answer: The M9 coil absolutely failed in this video-capture example. Reason = THE MERCURY DIME ANDTHE SODA TAB.....SIMULTANEOUSLY.....ARE UNDER A "BEAM" OF THE COIL.....AT THE EXACT TIME/PHYSICAL LOCATION! This is to say: the soda tab is the (shallower/stronger) signal...under its respective 'beam'.....whilst the dime is ALSO under a 'beam'......yet......is further/deeper from the coil; hence, the weaker (less dominant) signal/target. The disc'ed-out soda tab: WINS (in this case/video-example).
This is ALSO to say....... you can move the location of the dime..... so as to "FAIL" the M8 coil...... or ....... to "FAIL" the M11 coil !!!
NASA-Tom wrote: ↑Sat Nov 15, 2025 2:19 pm
In this case......... the M9 coil is the absolute loser......of the three coils.
BUT........ there is: "physics-absolute" justification for this phenomenon.
Time to 'physics-educate' the General Public.....for better understanding....AND....better real-World success!
And what I'm about to explain .... is true for any/all brands of detectors..........especially understanding their coils///differing coil-sizes.
Here is a clue (for better understanding): If you place a object (say: a dime) on the ground....... and you sweep ANY of those three coils (M11, M9, M8) over the dime....... and the coil is TOO close. , . , . , . , . , . , . what will you hear? You will hear the infamous: 'triple-beep'. Three beeps. By no accident. WHEN/WHERE do those 3 beeps take place?
Answer = As you are sweeping the coil..... when the dime is under the outer edge of the coil = First Beep. Then...... when the dime is under the center beam of the coil...... you will hear the = Second Beep. As you continue to sweep the coil...... when the dime is under the opposite outer edge of the coil....... you will hear the = Third Beep.
So......here is your answer: The M9 coil absolutely failed in this video-capture example. Reason = THE MERCURY DIME ANDTHE SODA TAB.....SIMULTANEOUSLY.....ARE UNDER A "BEAM" OF THE COIL.....AT THE EXACT TIME/PHYSICAL LOCATION! This is to say: the soda tab is the (shallower/stronger) signal...under its respective 'beam'.....whilst the dime is ALSO under a 'beam'......yet......is further/deeper from the coil; hence, the weaker (less dominant) signal/target. The disc'ed-out soda tab: WINS (in this case/video-example).
This is ALSO to say....... you can move the location of the dime..... so as to "FAIL" the M8 coil...... or ....... to "FAIL" the M11 coil !!!
Clear as mud???
Disclaimer.
Same similar test done with Deus 2 - 9” coil using 24 kHzMF band Using 11” and smaller than 9” coil. Results= Deus 2 9” coil fail to detect = basically carbon copy to how M9 coil behaved in video.
Realizing this is a Minelab Manticore thread. I only thought I should share this.
And this does support your post info above Mr Dankowski.
NASA-Tom wrote: ↑Sat Nov 15, 2025 2:19 pm
In this case......... the M9 coil is the absolute loser......of the three coils.
BUT........ there is: "physics-absolute" justification for this phenomenon.
Time to 'physics-educate' the General Public.....for better understanding....AND....better real-World success!
And what I'm about to explain .... is true for any/all brands of detectors..........especially understanding their coils///differing coil-sizes.
Here is a clue (for better understanding): If you place a object (say: a dime) on the ground....... and you sweep ANY of those three coils (M11, M9, M8) over the dime....... and the coil is TOO close. , . , . , . , . , . , . what will you hear? You will hear the infamous: 'triple-beep'. Three beeps. By no accident. WHEN/WHERE do those 3 beeps take place?
Answer = As you are sweeping the coil..... when the dime is under the outer edge of the coil = First Beep. Then...... when the dime is under the center beam of the coil...... you will hear the = Second Beep. As you continue to sweep the coil...... when the dime is under the opposite outer edge of the coil....... you will hear the = Third Beep.
So......here is your answer: The M9 coil absolutely failed in this video-capture example. Reason = THE MERCURY DIME ANDTHE SODA TAB.....SIMULTANEOUSLY.....ARE UNDER A "BEAM" OF THE COIL.....AT THE EXACT TIME/PHYSICAL LOCATION! This is to say: the soda tab is the (shallower/stronger) signal...under its respective 'beam'.....whilst the dime is ALSO under a 'beam'......yet......is further/deeper from the coil; hence, the weaker (less dominant) signal/target. The disc'ed-out soda tab: WINS (in this case/video-example).
This is ALSO to say....... you can move the location of the dime..... so as to "FAIL" the M8 coil...... or ....... to "FAIL" the M11 coil !!!
Clear as mud???
Wow, what a great, educational response. THIS is why I continue to visit this forum.
Your explanation was COMPLETELY clear, and makes total sense. And tnsharpshooter's added info that the D2 9" behaved in exactly the same way, is just additional confirmation. What great information -- especially in that you could have "failed" the M8 or M11, with a different configuration of the coin vs. the pulltab.
This really hammers home the point that hunting sites with different coils, and from different angles, can help to locate additional targets...
David........ even though this is a Manticore thread....... the Deus-2 w/9" coil test...... is absolutely 'valid' for educational comparison.
It is not the Deus-2's fault....... nor is it the Manticore's fault.......but/rather...... the principality of the physics imposed.
Your video///this data...... segues nicely into the following real-World resultant(s) =
There are conditions................................. I have detected sites.................. whereby............... ONLY the M9 coil ...opened up a site...... for the first time EVER in history.
There are conditions................................. I have detected sites.................. whereby............... ONLY the M8 coil ...opened up a site...... for the first time EVER in history.
There are conditions................................. I have detected sites.................. whereby............... ONLY the M11 coil...opened up a site...... for the first time EVER in history.
And all this data .....would hold true for the Deus-2 with it's optional/varying coil sizes.
Steve............. THANKS for letting me know....that my verbage is not garbage!
((( It's not uncommon for me to get TOO 'wordy'..... or too technical!!! )))
Here’s a question for Mr Dankowski.
You have spoke of the Manticore’s ability with the M8 coil to be able to detect smaller things when wet salt sand is involved, so I notice this Gold Monster 2000 outfit. Guess it’s vlf but uses pulse induction engine /processing for the ground. So if the Manticore had such engine as the gold monster 2000, would this improve the M8 coils ability in the salt sand and even perhaps black sand to detect smaller targets better and or deeper vs current form of Manticore? Maybe different engineered coil would be necessary in addition to the pi engine? Just a guess.