airscapes said:
See a nice looking IDX pro on local carigs list, any value to this? Did a quick search of the form and don't see anything posted for any time frame.
For many there can be a 'value' to owning and using the IDX Pro, depending upon how often they get out detecting, the sites hunted, coils used, and how demanding the owner might be in wanting modern flashy features and such. Looking at your signature I see only a DFX and Coinmaster GT in which case I would much rather own an IDX Pro with modifications and make sure I had a 6½" Concentric coil for most detecting chores, a 4½" 'back-up' for trashy areas [size=small]
(the 'Snooper' Blue Max 350)[/size], and maybe an 8" or 950, if you prefer, for wide-open areas.
Herb Jones said:
I have a stock 950 black max and a small Snooper coil... are there any others I should keep an eye out for? I really like the performance of both,... it's ironic that if all my machines this was almost the least expensive. $150, and another $35 For the snooper Coil...The display was installed upside down,... the guy Didn't think it was worth fixing (flipped the screen and presto.... so one of. my least expensive machines brings in some of my nicest finds... seems as though there are a few older machines that were exceptional... and the IDX PRO was one of them... I think it's a keeper...
I seldom had a use or need for the 950 coil. If hunting a very open, sparse-target area such as a large grassy park or beach, I preferred the Royal 800 8" Concentric coil. Still, that 8" or 950 coil saw much less use because most of the time I worked trashier areas and wanted a smaller size coil. Besides, the 6½" Concentric can provide really decent coin depth.
I would suggest getting one of the 6½" Concentric coils for most every-day detecting, especially if sites are trashy or brushy. It's light weight and balances quite well. All the same 6½" diameter configurations, but early-on in white plastic then changed to black-plastic, those Concentric coils used the names of: Blue Max 600, 5.3 Black Max and 5.3 Bullseye. I also kept the 4½" 'Snooper' coil on a spare lower rod for use in the nastiest of trashy sites.
Herb Jones said:
Any Suggestions as to When to use the black Sand mode?
The 'Norm' and 'Black Sand' toggle has nothing to do with the color of the ground or the texture you're detecting in. It isn't part of the Ground Balance circuitry, either, and was simply a poorly named adjustment function.
In the 'Normal' setting the IDX Pro, and Classic III SL have a Discrimination adjustment range very similar to the Classic ID. At the minimum setting the detector will be accepting some iron range targets but will also be rejecting a good amount of ferrous trash. When toggled to 'Black Sand' ([size=small]
which maybe should have been named 'Enhanced Disc.' or 'Expanded-Disc' range)[/size] it is just an adjustment for the lower-end of the Discrimination range. When at the minimum setting there is essentially no rejection and the detector is in a silent-search, motion-based, all metal accept function to respond to any metal, ferrous or non-ferrous.
Typically a Disc. setting in the Black Sand function at about the 9 o'clock to 10 o'clock position will
just barely be rejecting iron nails. The upper-end of the Discrimination range is not supposed to be effected beyond about where modern US Zinc Cents would just reject. It is only an enhanced adjustment of the Discrimination for the lower and mid-level conductivity range.
Herb Jones said:
I have not adjusted the GB pot... I know On My vaquero the depth is increased by running just a tad negative.... is this the same with the idx
Pro ??? I Have read on other Forums that a little positive is the way to Go
You do not want to have the Ground Balance set negative in the All Metal mode on the IDX Pro, or most any Classic series models, as that will cause falsing in the silent-search Discriminate mode.
Most Tesoro models, by design, have a more positive off-set for the Discriminate mode than the All Metal/Pinpoint mode's GB reference. Because the Disc. mode is offset a bit positive, in some cases you can experience impaired performance if the manual or internal GB is set too positive. Matter-of-fact, a
slightly negative All Metal mode GB will get the Disc. mode's GB close to 'proper' for enhanced performance.
The Coinmaster Classic series, that morphed into the Classic's in the slim-line housing, were designed by Wm. 'Bill' Lahr to provide a model to compete with the Tesoro line which, at the time, had a lot of demand in the silent-search, quick-response and fast-recovery market, and White's 'Classic' series made an excellent competitive product. His circuitry design with regard to the internal Ground Balance trimmer setting was more in-line with what I would prefer. The Disc. mode's GB references is either spot-on to just slightly negative to the All Metal mode's GB adjustment, and that means you are better off to have the All Metal /Pinpoint Ground balance set to be
just slightly 'positive' to get full performance out of the Discriminate mode. If adjusted negatively, the Disc. mode can be too negative and falsing will really annoy you.
lytle78 said:
I find that either spot on or very slightly negative gives best results. Just a touch - when full power gives chatty ground noise in AM, you’re too negative.
The All Metal GB should be 'spot on' or
very slightly 'positive' with the Classic series in order to not have falsing from the Disc. mode
Herb Jones said:
... I usually run the small Snooper if that matters.
It can matter with any of the standard Classic series detectors with regard to Ground Balance and field performance. When you change search coils on the Classic, it can also result in a change in what the Ground Balance setting is and, therefore, require adjustment to have a 'proper' and functional Ground Balance for the search coil in use.
My brother used to use a Classic II with only the standard 8" coil so we made sure the GB trimmer was tweaked for a workable GB wherever he hunted with it. I did the same for a friend of mine as she uses two Classic II's with only their 8" coils. I have another friend who uses the Classic ID and mainly the 6½" Concentric coil, but at times does swap to either the 4½" Snooper of the Royal 800 8" Concentric coils, but they don't have any detector modifications. So we sat down with all three search coils and some tough 'bad ground' samples and tweaked the internal GB trimmer so
that specific Classic ID and
those specific three search coils were all going to work in almost any change of detecting site regardless of which coil is mounted.
I was fortunate to get the first Classic III SL that 'Mr. Bill' Crabtree modified [size=small]
(other than his own)[/size] and from that point on I only wanted to keep a 'Mr. Bill' modified Classic II SL, Classic ID or IDX Pro in my working detector battery. I have enjoyed many White's detector models through the years ...
many years ... since my first Ghost Towner BFO, and there is a small number of all-time favorite White's models that I had. My favorites among that group are the XLT, the 6000 Pro XL [size=small]
(that was renamed the XL Pro)[/size], and the IDX Pro with 'Mr. Bill' modifications.
Today, none of those three are in my current arsenal, but I am keeping a sharp eye open for any one of them, in pristine condition, to add back into my
'favorite oldies' collection of working detectors. Mine will be a modified IDX Pro, guaranteed, which allows me to quickly calibrate the GB setting for the search coil in use. In your case, hang onto that 4½" Snooper or I might snap it up when I find another IDX Pro as a good coil to complement the 6½" Concentric that will see most use.
Also, double check all of the search coils you have to make sure all are going to work satisfactorily on your particular IDX Pro. If needed, the internal GB can be tweaked to establish a working Ground Balance for all coils. It might be that your IDX Pro and complement of coils are all working just fine and no 'tweaking' is necessary.
Enjoy a great White's detector as we go through 2018!
Monte