Depth capability was one of the selling points of the DFX. Frankly, I have not become a expert with it, but good enough to adjust the pro settings to maximize the depth and other features of the DFX.
With the increase stable preamp gain, I find most coins so far to be clad around 4".
I really a beginning to doubt this sales boast about quarters at 12". I realize that a quarter target must exist at 12" in order to detect it, but all my quarters have been at a max depth of 5" or less.
Does anyone have actual depth experience with the DFX?
What is its maximum repeatable depth capability say of a clad quarter!
I am tired of having an AT PRO eat my lunch.
Anyone? Thanks!
DFX Depth Question
First off... hitting a quarter at 12 inches is something I'm not buying. The MXT gets considerable deeper then DFX and to hit a quarter at 12 inches I need to have my 10" DD or the 12x10" SEF coil... and in some soil conditions, even then is not a given.
But please don't fret over your DFX, it's still one of the best detectors on the market and with the right settings can reach those deep old coins. And keep in mind that over 86 percent of all coins will "NOT" be deeper then 8 inches... that's a simple scientific fact. Some will, but it take man's doing or a great natural event to cover them any deeper then 8 inches.
Create a program using the adjustments below:
Audio threshold, ‘AC Sensitivity’ (controls the power transmitted into the ground)... try 80.
‘DC Sensitivity’ changes the sensitivity in the pinpoint mode... I fine the factory preset fine, if you do turn this up, don’t go up anymore then a notch or two.
By setting your ‘Auto Trac Offset’ at + 2 will increases sensitivity to small gold items a little.
Also use your ‘Preamp Gain’ in conjunction with increasing your AC Sensitivity.
‘Ground Filtration’ I keep at at 3 or 4.
Here’s some realistic depths you can hope to achieve using these setting...
With your 9.5” coil will enable you to reach a large silver coin (quarter through dollar) at about 8 to 9 inches depending on your soil conditions and soil moisture.
With the 10” DD or 12x10 SEF Butterfly Coil you can reach a large silver coin at 10 inches and in the best of conditions it may be possible to reach a silver dollar at 11 inches.
Generally speaking... with comparable coils on the same target, the MXT will give you 2 inches more depth over the DFX at it’s best. In the prospecting mode MXT can give you 4 inches more depth.
There are White's DFX Instructional Video's on YouTube is you need help making this settings and then saving the program. Start with my recommendations and then adjust to your conditions and preferences... and happy hunting.
Hope I've helped.
Best Regards,
Silver Hawk