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Got a couple of email requests to re-post this info on coils...so here ya go ...for your reference files:

A

Anonymous

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<BIG><CENTER><STRONG><FONT COLOR="#ff0000">DD & Other Basic Coil Info - for DFX/MXT Users</FONT></STRONG></CENTER></BIG>
Since all DFX/MXT detectors come with the stock 9.5 coils included, the first coil questions most users ask are in regard to the DD (Double D) coils they keep hearing or reading about.
The DD coils are elliptical (Vs concentric or round) and send out an electromagnetic "search" pattern into the soil that resembles something similar to the keel of a boat with a bow on each end. The concentric coils send out what looks roughly like a cone. This means the elliptical coil search pattern covers the ground more like a windshield wiper than a concentric coil's floor buffer pattern.
This "keel" pattern makes for a smaller/narrower "window" for the detector to view the ground matrix. In short, it sees fewer targets at one time and thus has much greater target separation capabilities in "trashy" sites. The DD coils also work MUCH better in higher mineralized soils as they are less prone to ground interference.
Because the DD coils are NOT as wide as the concentric coil, simple geometry would imply they couldn
 
Thanks again Art, for all your diligent collection and analysis of MD related data.
You should be selling CD's containing all the MD related summary information you have provided to date on the forums. I for one would be a buyer... <img src="/metal/html/smile.gif" border=0 width=15 height=15 alt=":)">
I know I said this in e-mail, but here it is for public consumption. (Hoping to put more pressure on ya! <img src="/metal/html/biggrin.gif" border=0 width=15 height=15 alt=":D"> )
 
Art,
Thanks for the report. After reading it I went to my local dealer last night and picked up the 6x10.
Can't wait to give it a try. Only problem is they are prdicting snow and sleet here in Dallas today and tommorow...our first bad weather of the year.
Harold
 
Get a new detector or coil, or even the first day off in a 2 weeks and the weather is raining or snowing. I think it is one of Murphys laws in the area of buy a new snow blower and it dont snow, but if you dont you get 2 feet of snow the next day.
Good luck with the 6X10 as that is my main coil now.
Rick
 
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