F70 separation test.:stars:

[dahut]

I've had some seemingly amazing things happen while detecting, but I dont think any of the detectors or concentric coils I've used will separate objects when they are under the coil's "sphere of influence" at the same time. Of course as targets are deeper, and the concentric coil's signal at that depth is not as broad as it is at the surface, i.e. directly adjacent to the coil, then it is possible to seemingly separate objects that are relatively close together. How close these objects are, or how amazing the occurrence might be is often lost in the process of retrieval, in my experience. Doesn't mean we dont have oddities occurring from time to time, ...

I tend to agree. We love these tests, if for nothing more than the conversation they generate. And they certainly give us something to do in our off time. I suppose, too, that on some level, they provide training, if not practical experience. But the real world is about recoveries.

There is little correlation between what we find in a test garden - and what is beneath the coil out in the field. We learn the capabilities of our machines in the lab, but not how it reacts in a trashy lot. Each swing is different there, each target or group of targets, unlike those before. Only experience in the overturned dirt can teach us what we must know.

You cannot know with any degree of certainty just what lies beneath. All you have to go on is the audio and visual clues provided by your instrument. What really matters is what the tip of your digging tool brings to light. Arriving at that point is the crux of the matter - -

One thing is certain, coins and desirable items do not line up neatly in a rows, like so many soldiers. If they do, it is an anomaly and not worth banking on as commonplace.

 

[Furious T]

n/t