I'm new to metal detecting & recently bought the 705 along with Minelabs 3kHz 9" concentric coil-also have the standard 7.5 kHz coil. Concerning the 3kHz concentric, what are the pros & cons of this coil vs Coiltek's 3kHz 6" DD coil? Is the "Digger" going to be better in trashy area's? I live in an old farmhouse with lots of iron surrounding the house & out buildings. Would'nt the 9" 3kHz concentric be good enough to pick out the treasure from the trash? I read Old Longhair's & Digger's reviews & now I kinda wish I would have went with the "Digger" instead. The reason I bought Minelab's 3kHz is mainly to hunt for copper Indian artifacts & silver coins but I'm just learning the 705 & starting to get a good grasp on all the right settings so at this point I'll stick to hunting on my property before venturing out. Thanks for any input......
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3kHz 9" concentric vs 3kHz 6" "Digger" DD
- Thread starter fdl
- Start date
7centsworth
Well-known member
The smaller coil is better in trash it does not matter what the khz is. The smaller coil does not pick up as many targets at once. I have not tried the digger coil but have heard it hits the coins really well in trash. I have the 6 inch 18.75 coil and I have found alot of coins in the trash that i missed with other coils. I hunted in a trashy area that I have hunted with the 10.5'' 7.5 khz, 9inch 7.5khz, 9inch 18.75 khz coil and then the 6inch 18.75khz coil this weekend. I will post my fuinds that I missed with the other coils later tonight. I did not miss alot but I did miss some good relics that the small coil picked up. Hope this helps.
Thanks 7centsworth....it's good to know that smaller coils are better for trashy area's,just what I have where I live. If I can pick up the nuances of the 705 on my "trashy" property I should be able to be successful where there is less trash. The snow has just melted off so I've been able to get out the last 3 days,but man is it muddy! I did find a 2001 quarter along with some nails,bolts etc.
7centsworth
Well-known member
I like to hunt a spot multiple times. I always dig some trash on every hunt at that one spot on purpose. Because even with a small coil some trash can mask a good target.