Question on Quattro

[Angela (Australia)]

Hi all,
I realise that this is an Explorer classroom, but I was wondering if you just might be able to explain to me on something here. I've been using the Quattro for the past 5 months, and do so on a weekly basis. I used all metal mode, no discrimination to start with, then switch to all metal mode with some discrimination to verify a good sounding target. What I've been finding is that often buttons will read -2 or -3, then when I switch to the mode with discrimination, I get a =9 or =10 reading. Why do I get a negative reading with no discrimination to begin with? This happens quite frequently with lower number reading of very small objects. Could it be that the ground conditiond change the composition of the relic somehow, that it reads negative. Anyway, I usually rely on just the sounds, which is why I know when to did. But I find what happens here intriging. I appreciate any help in understanding this.
Sincerely Angela

 

[Angela (Australia)]

n/t

 

[Cody]

Digital readings are used to indicate ferrous content and conductivity of targets. It is common practice to divide the reading into negative and positive numbers. Negative numbers represent targets that are ferrous such as iron. Positive number represents nonferrous targets. However, this system is not perfect and targets in the soil that are nonferrous, precious metals will be detected as ferrous so have negative reading but most of the time are only slightly negative such as from -6 to +40. This is just an example and not intended to be the actual reading for your detector.

I don

 

[Captain Kirk]

n/t

 

[Angela (Australia)]

Hi guys, thanks Cody for your reply. I see that it's just another thing with the Quattro that I'm learning to understand. I appreciate the imput. I find your forum very interesting. My husband bought the Explorer about a month ago, so is going through a learning kerb with it. But he is enjoying the challenge! And the good thing about it all, is we get to go detecting together! Oh' and by the way, I didn't think to use the spell checker! Hope it's better this time (Captain Kirk!).
Cheers, Angela