No matter what size, Shape or brand of coil,
The QED can be setup for it.
You have to remember, A metal detector is a Transmitter and a receiver.
You have to find the right "Harmonic " for the coil.
Type of ground, moisture, etc.
Like any machine, Once you have found that knee, Away you go.
QED has 16 modes and 2 bias settings for that.
How many variables do you need. O
And it is quite easy to find them.
The machine will tell you that. :Y:
I had mine running on brick red ironstone in a potato patch. (Super Secret Spot. )
And that was with the new Nugget finder evo coil.
Quite as. No problemo.
But bloody phone ringing telling me to come home and rain was a variable I did not want.
650 Klm's away.
I was not very impressed I assure you but,
" I'll be Back. "