MINELAB MANTICORE: DATA & PERFORMANCE

[EL NINO]

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!!! )))

That is definitely a very correct thought Mr. Dankowski..

Each size of a given coil has a certain best separation advantage, depending on the Type of separation...

My recently done really demanding test field with 35 separation targets 3D placed between iron... very nicely show this fact... that a small coil may not be the most universal coil in separation in the case when it can find iron from both sides of the target..., even in cases when iron is placed on a deep target from only one side...

Smaller coils have an advantage in another type of separation situation... so for the best use of the separation properties of the detector we need at least 3 different sized coils... the best is a 4-6" coil, a 9" coil and an 11" coil..
Here it should be said one more thing that the detector itself must have a good 3D separation predisposition.. so that he can properly use the possibilities of all 3 coil sizes..

Ps.. I think David /Tns/ does a good job in testing...in testing detectors.. because some synthetic tests.. really match real situations in the field...

In other cases, some synthetic tests will lack the terrain factor,,with mineralization or dense littering with old iron,, which can really change the stability of the detector in detecting heavy iron,,.. when there are 3-5 different deeply buried iron targets under the coils..from old wrought iron..

[NASA-Tom]

David.......yes/correct. Thinking outside-the-box.....can REALLY change the engineering/invention/conception thought-process and (subsequent) direction.

El Nino..... This topic/subject deals with: enhancing separation...........................which means...........................we are only talking about higher/trashier areas. This is where the bulk of the targets reside...anyway!

Some (not-so-obvious) data that FULLY accentuates "why" different coil sizes ....CAN....... or CANNOT... light up certain targets .... in trashy areas:

You have a small coin at 6" deep. This depth target...hardly poses ANY challenge... to ANY size coil. Let's say there is a small fleck/flake of rust that is close to the small coin..... but at (say) 2" deep........and 2" away from Top Dead Center of the small coin.
To the 11" coil..... the tiny piece of rust/target....is hardly detectable (at any depth/range) to a 11" coil. So: the 11" coil DETECTS THE SMALL COIN.
To the 8" coil...... the tiny piece of rust/target....is a fairly large target......in comparison to the SIZE of the 8" coil. So: the small coil DETECTS THE RUST TARGET. Small coin goes: undetected.

Enhancing understanding: Let's talk about a air-rifle BB.
To a 11" coil...... a BB is a TINY (almost undetectable) target...... to the 11" coil.
BUT....... to a 5" coil (or M8) coil....... a BB looks like a cannon ball to the tiny coil !!!
This is to (clearly) try to say....... is the small coin "masked" by a cannon ball........ or NOT "masked" by a target that can hardly be detected/seen.....by a certain/larger coil !!!

In my painstaking Archaeological Site Recovery (Phase 1 & Phase 2) pit digs.......... I recover a TON of tiny maskers!!! MANY are air rifle BB's and ALSO tons of shotgun birdshot BB's..................... along with TONS of pepper-sized flecks/flakes of rust.
And you wonder "WHY" a detector can air-test a Dime to 17"......... but can NOT detect a Dime at only 6" deep!!!!!!!!!