A question about - Minelab Noise Canceling ?

[E-Trac-Ohio]

A question I read about Noise Canceling in the Quattro / Safari Forum led me to putting up this post.
Here's a question for you Tech guy's ---

Minelab say's that we should hold our detectors 12" off the ground when Noise Canceling.
The question in the other forum is why don't we Noise Cancel at ground level - the same level where we use the detectors ?

 

[Jason in Enid]

Probably becuase the detector is looking for EMI which are coming from the air most of the time. IT only makes sense that you want as much of your coil exposed to the EMI as possible. I guess if you had a source of EMI from underground then doing this on the ground would make sense.

 

[bigjohn070]

I always NC on the ground in a clean spot

HH
BIG JOHN

 

[akelley]

The manual also mentions that you should do it in a clean spot, so I suspect that lifting the coil a little higher also mitigates
the potential for metal in the ground while noise canceling.

-Alex

 

[Neil]

The manual also mentions that you should do it in a clean spot, so I suspect that lifting the coil a little higher also mitigates
the potential for metal in the ground while noise canceling.

-Alex

thats what I figure too, so the ground isnt in the mix when you do it.