Brain Storm need Some Help?

[jcham]

I just had this brain storm we all know that there is more than meets the eye in regards to the SpectraV3.

Anyone that has ever used and Excalibur knows what Gold sounds like at least those of us that have found gold and if you havent found Gold you will thats a promise.

The Excalibur does not have Tone ID however carries about five different sounds depending on what it hits. Now when ever I’m beach hunting I have been 99% when it comes to finding gold. I hear the tone and I know before I scoop that gold is coming up. I hate to use this scenario but it’s like a rat to cheese. The smell of cheese is used in training mice to find its way to the exit of a maze. Just like Gold after 5-6 gold rings the sound is unmistakable.

So I’m looking over this manual and with the DFX I can’t change the tones but with the Spectra I can adjust the tones from pull tabs to gold just like using the Excalibur. What if I were to eliminate all tones except for say five? One for quarters, one for dimes, pennies, nickels, pull tabs, and of course one for GOLD. This detector could easily distinguish if programmed correctly to give me a custom gold tone. I could put tabs at a very high tone and keep gold very low I wonder if something like this would work.

Tabs on the Excalibur are higher than gold and nickels are close but still just a bit higher. Quarters, pennies and silver are all real high pitched but I’m wondering if this detector can be adjusted in this fashion. Any ideas about this I could program using an air test and set tones accordingly. If the Excalibur had a good recovery speed and wasn’t so heavy it would be the ultimate land hunter just for this reason. Anyway I’m going to do some reading tonight, I got to get to my scuba hunting this weekend but next week my son starts daycare so I’ll be hunting everyday with the spectraV3.

There are a lot more knowledgeable folks out here that know far more about detecting than I do. Do you think it may be possible to do this?

I mean if this thing can link to another detector why not???? I mean if the Excalibur can do it without being programed for sound why not one that can?

Jamie

[Rudy]

In theory it sounds good, but I don't think it is optimal, simply because gold jewelry items can fall over a wide array of VDIs depending on: Size, weight, karat content, shape, presentation angle, ...

Instead, you might want to look at an alternative strategy which I'll outline for you below.

When you "fish" for gold, you probably want to use the highest frequency only, as that frequency is the most reactive to gold. This makes possible engaging some additional capabilities in the machine which I'll get to later.

Besides the gold and the coins and other incidental good finds, there is a lot of manufactured junk such as pull tabs, nails, crushed cans, ....

The man made or manufactured trash is fortunately small in numbers and have a fairly repeatable VDI, whereas the gold jewelry does not. So, a possible strategy is to discriminate out the junk and allow the good stuff.

Now, there are a lot of pull tabs to be found adjacent to gold and if we want to minimize losing gold, what we need is to have even better VDI resolving capability so we can discriminate out the tabs with, shall we say, surgical precision. Well, it turns out you can do that by turning VDI normalization off (this feature is also on the DFX). Turning off VDI normalization significantly expands the VDI resolving ability at the low conductor side of the VDI scale. A downside is that the VDI readings will change from what you are used to, but you gain in resolving ability.

Now, you can learn how the manufactured junk VDIs (tabs, bottle caps,...) and discriminate those VDIs out, along with the ferrous items, while allowing the rest to come through. If you run into a situation where previously unseen manufactured junk show up, you can add it to your list of VDI rejects.

Then again, when beach hunting, it is just as easy to scoop it up and visually discriminate the target.

[Lowjiber]

Shhhhhhhhhhhhhhhh....(I've already started volume two of "The Book of Rudy")