Been a lot of chat about x coil for ML. I would like to see or read a good comparison on the X coil vs the rest on a QED. I am going on a trip to Western Australia in June, so I need a larger mid range coil. I have received advice that the 14" Coiltek is the coil of choice. All the talk is about x coil, but there hasn't been any real comparison posted. I was thinking 15"x10" x coil could be a contender, but lack of comparison or direct info makes it hard to make a choice.
Correct me if I am wrong
8" Sadie = Small targets at shallow depth Low ground coverage
11" Detech Ultra = Small targets a little more depth bit better ground coverage
14" Coiltek = More depth start to loose smaller targets better ground coverage
15" x 10" = ??
I'm new on this forum and like Alexandre Tartar, I live in north of France.
I was a young prospector in the 90's and asked my father (electronic engineer with good knowledge in magnetic field theory) to build a PI to hunt the beaches. So we have made, in a few months, an home-made PI metal detector 25 years ago, based on the technology of the old White's Surfmaster PI (mono coil). I remember the use of FETs (Field Effects Transistors to make 200 volts pulses). It worked, but unfortunately, my father was afraid by a so powerful magnetic fields and has continued his research on VLF detectors, until today !
After this short presentation, here's my question :
Is the Impulse AQ a bipolar detector ?
Le Jag has explained us on the french forum "detecteur.net" this technology developped by Alexandre :
Positive and Negative pulse are alternatively sent.
The positive one light the gold ring but magnetize the soil.
The negative one demagnetize the soil.
What about it ?
It feels very good that this nice forum is at high speed with all discussions about the AQ with all different subjects about the AQ.We are now in the middle of january and still nothing from the Fisher.No reports from any tester, no videos, no manual, nada...it feels kind of depressing without knowing any informations at all.I know that LE.JAG and Alexander can't say anything about these informations even though the know for sure.Is there any thought or any guesses about these questions?