VDI Observation: Hope this is helpful.

[Anonymous]

I see a lot of helpful postings about how different objects show up as this VDI and That VDI, and these observations are solid observations. But there are many factors that determine what VDI you will see in any detecting situation. The VDI's fluctuate on any given item depending on how much gain how much discrimination you use how deep the object is, ground mineralization etc... Dont become frustrated because your VDI's Are not right on what someone else tells you they should be. Its all about setting your MXT up right for your environment. When someone gives you VDI info on certain targets be sure to get their setting info. However if the ground you are hunting is more or less mineralized than the person giving the advice your MXT settings will most likely need to be different to acheive the same results. Being in an area with varied ground readings of higher mineralization It has taken me some time to come to this conclusion. To experiment and see what I mean, just bury a coin in the ground at any depth and test your target with different settings you will notice different VDI's and or patterns of VDI's. The patterns and #'s will fluctuate with different settings. When the VDI's are really off all this is telling you is that your machine is not properly tuned for the conditions, depths etc... Hope this helps. HH Jason

 

[Anonymous]

Do VDI's vary on the DFX as much as the MXT
Billm

 

[Anonymous]

Depending on the trash, mineralization, targets close to one another plus other factors. This is why VDIs are not 100% accruate and we use other factors such as how big the target is, how it sounds as being repeatable along with the depth of the target. VDIs are only one more tools we use to ID a target and it alone is not enough and to be used with our tones, repeatablilty, sizing, and depth of the target as the deeper it is the less accurate the VDI is.
Out of all the detectors I have used I found the Minelab Sovereign with the Sunray meter probably had the most accurate VDI I have ever seen, but it too was not 100% accurate on real deep targets over 9 inches deep.
Rick

 

[Anonymous]

[No message]

 

[Anonymous]

In My area I have found the VDI to be a great help on the MXT when it is tuned correctly. Many factors do affect the VDI. My point is that it is possible to tune the MXT to get the most reliable VDI #'s. Dont give up on trying to I.D. targets with the VDI. I have heard alot of people, complain about the VDI's jogging around on targets and not being able to get a lock on a certain # or the #'s not being accurate. I noticed it myself and it has taken me a little while to figure this out. I am a MXT owner and I think this info can help those who would like to increase their knowledge of the MXT. However the MXT is new technology, and full of surprises. I am giving hands on advice that can hopefully help people increase their finds of good targets without having to dig trash. Isnt that the goal of all this technology? Imagine if there was a way to make each of these ID's extremely reliable. I have found there is a way to make them much more reliable. This advice is probably valid on all the other detectors with VDI's that you mentioned as well. Well you can not guarantee that the VDI's are going to be right on, you can tune your detector to give you the best results. Everyone needs to learn to use these tools. Not just give up on them. I have found the MXT to be a reliable machine that has a lot to offer. However it does have its complexities. The MXT does a great job between all of its i.d.'s to give you a good idea of what you are looking at directly out of the box, but there are ways to tune your machine to make it even more reliable. Hey Rick thanks for your response. Their are definitely other ways a person can physically i.d. a targets size depth and location etc... All those techniques do help immensely. HH Jason.