Critterhunter said:
Now we get to the two all metal modes on the GT...All metal fixed and all metal track.
Neil said:
1. the two forms of all metal on the Sov GT are not tracking and fixed, those are working off the same all metal mode, similiar to that found on the minelab eureka.
Neil, if that was directed at me (?), fact remains there are two all metal modes on the switch- track or fixed. It's just a matter of semantics as to that meaning two modes of all metal, or one, or three counting pin point mode. Same deal, different wording. Call it switch functions, or settings, or what have you. One tracks. One does not. No different then those two modes on other machines I've owned. Example- 6000 Pro XL or QXT Pro. Two modes. Tracking or Fixed. Same All Metal mode in either setting. Not saying otherwise, that they are different in nature other than the form of ground balance being used. Just like Iron Mask On or OFF. Both disc, but with different switch positions, which to my terminology are two different modes.
But in terms of PP mode, let's review the quote from Minelab again here...
"Note: You should not search in Pinpoint [size=x-large]as[/size] the ground balance is disabled and the detector can become erratic."
That's in the GT manual, and I've heard it said elsewhere as well...that it's a form of all metal that doesn't feature a ground balance. If Minelab means it uses the disc mode's ability to ignore the ground, then why the need to mention that it shouldn't be used
as the detector can become erratic?
There are forms of all metal that feature no ground balance if memory serves, on at least some old machines. I think (it's been a while, but not on an "old" machine per say) that the 6000 Pro XL even has such a mode? Not sure about that, as it's been a while since I owned #2 6000 Pro XL and never ventured much out of the regular disc mode, but I'm pretty sure I've seen all metal modes on detectors of yester-year that didn't feature a ground balance. And I'm not talking because it was factory set, but because it simply didn't use one.
If I remember right, one of the disadvantages of those forms of all metal is that they had instability issues in some soils, but on the other hand I think they were said to have some unique traits too that an all metal mode featuring a ground balance didn't have. I think perhaps one of the things that gives PP mode it's unique abilities is it's constant "tight" tuning of the target response and it's more limited tunnel vision scope in what it sees as it scans the ground. Much like fastly adjusting SAT to compensate for the ground response. The auto adjusting for zeroing in on a target might have some very good unintended side benefits.
I remember one experienced water hunter remarking about this trait- thinking that PP was more "focused" and taking in less ground stew as it scanned deep, and it being one of the reasons he thought might be responsible for his findings that it held it's own against numerous PI units he owned in bad sands, by ignoring surrounding ground conditions with more of a tunnel vision type action. If he's right, that would explain why PP will see a non-ferrous target much deeper than disc will. I'll see if I can dig that up for a re-post on another day, as I'm off to bed for now...
Final thought- If Minelab does indeed use discrimination's unique abilities to ignore the ground in PP, then they've made one glaring error in product manuals that I would think would be a major selling point they would have wanted to fix and highlight. Regardless of how PP does it's magic though, there is no doubt it does have some unique abilities, so the wheres and whys of how probably aren't all that important in how it gets the job done. I just don't see why they'd said what they do in the manual, when it would seem that has a very different meaning then it using disc's ability to ignore the ground. Perhaps it's an error, but man what a major one...