Thomas Dankowski's Metal Detecting Forum

I know that I have discussed/posted "similar topic" before; yet, the following is worth reiteration:

Manticore (EQX & XP Deus/II)

1901 church. 90' X 75' front lawn.

Education/Quest = Recovery Speed ...............Real-World performance: Proof.

With Recovery Speed on '4'......... hunt this 90' X 75' front lawn....... until totally satisfied that no more coins left...to be found. =
17 coins found.

Now hunt the exact same property......with exactly the same settings......... except Recovery Speed on '2'.=
11 more coins found.

Thoughts/Summary =
Yes..............most of the additional 11 coins found....were deeper. (and older).
Knowing this would happen........ I was still (somewhat) startled when I would find/detect another coin.
Sooooooo........ with each/every one of these 11 additional coins........ I HAD to switch back to Recovery Speed '4'......... just to see WHY they were missed. Nutshell: 9 (of the 11) coins were missed.... in Speed 4.... because the coins were (just barely) too deep. The remainder 2 coins COULD be detected in Recovery Speed 4; yet, the coil approach angle-of-attack was rather critical........and...... these two coins....were quite weak in signal-strength......with the exact/correct coil angle-of-attack. ANY interference....... and they were undetectable.

Moral of the story:
1. DEPTH is critical!!!
2. Enhanced adjacent target separation is critical!!!

Also.................................... I hunted Recovery Speed 4 FIRST....this time................................. because the last several time I performed this exact test...... I always used Speed '2' first.
It does not matter WHICH speed you hunt in....first. Just as long as you hunt the site (eventually) .... using BOTH speeds.

Note = Some dirt is SO magnetic (mineralized)...... that the EQX/Deus/Manticore will not let you hunt the bad dirt.... in slower recovery speeds.

A quick addendum:

I just finished hunting this exact property again............... but with Recovery Speed 6. Results =
One more coin was found.
Real-World resultant!

A good reminder for us all. Thanks

This is great information, NASA-Tom. Thank you for sharing. Very fascinating, how recovery-speed changes have such an effect on what your machine is able to "see."

Steve