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Head scratcher on the 6x10DD

S

skateteacher

Member
I have the 6x10DD on my MXT and I set up a test garden today trying to check depth's and what dimes, quarters and nickels sound like at various depths. I had a dime buried at 6" and I didn't even get a VDI but dd get a change in tone in the threshold. I put it into prospecting mode to check ground mineralization and it varied from 50-80 as I moved about my yard. My yard is fill dirt(typical SoCal subdivision). So my question is what's up with the depth? I also had another hole that contained a quarter, a AA battery(looking to see what masking does) and 2 pennies at 10" and when I passed the coil over it I got nothing, no change in tone or anything. These were new holes if that means anything. I'm wondering just how much stuff I'm missing and what exactly is the problem. Any ideas?

Thanks

Dave
 
Hi Dave, Sometimes new buried money will not detect like money that has been in the ground for a few years. My MXT dose the same on new buried money.
 
Maybe your ground. My dime at 7 1/2" has been buried for a year and I hear it well with my 6x10dd. It's a soft signal but you will notice it. I don't get a great id though but it's that deep and sounding smooth I'll aways dig.

Rick N. MI
 
I had the same experience with my 6 x 10. No matter what I tried, I just wasn't satisfied with it's depth. I found that the 5.3 was a bit deeper and the 10"DD was super deep. Since both of these coils separated well and had better depth, and the 6 x 10 was not a satisfactory medium between the two, I sold the 6 x 10. I do not plan to get another one.
 
Excellent info, I recently bookmarked an ebay search for a 6x10 coil so I can easily check for a new deal. I'm glad I havn't bought one yet. If I spend $150 or more on a coil it better see dimes beyond 6 inches. I already have a 5.3 that I never use. If it can see dimes deeper than the 6x10 and works great in heavy trash there is no reason to buy the 6x10. I thought the 5.3 was considered a shallow coil but seperated well, the fallback coil of hotrock and trash infested areas. Perhaps it is shallow, but deeper than a 6x10? Says little for the 6x10.

JohninNC, Can you offer an in field testimony of the 10"DD on dimes, considering your not in hostile minerals? How deep can it give a good signal on dimes? Not easily missed whispers, but where it starts to show decent VDI's over +40 or better. I am interested in a DD coil but I definitely do NOT want to miss dimes so I don't want to go too big.
 
It's been a while since I did my testing. I kept notes for a while, but I don't think I have them anymore. I mostly relic hunt or hit 100+ year old houses and I use the 10"DD for all of my relic hunting. The smallest things I have found lately are P-caps and P-cap box finials.
 
I've also been having depth issues with my 6x10 DD coil. I have an older MXT and ground balance fairly often at my hunt sites. Ground readings in my area are 77-80 in all metal. I rarely dig coins with this coil below 6 inches in the turf. It does go deeper in sand like 7 maybe 8" on a penny/dime target. I recently tried an air test with a dime and you get a good dig-able signal at 6" at the preset gain level and at +3 a weak signal at 7". I think some machines/coils and combos may just be a little hotter/deeper than others and of course there is the ground mineralization. I just know there is silver lurking just below the detection range of this coil on my machine.

On the plus side it is hot on small conductors at shallow levels and I have dug many small gold rings (sub gram to 2 gram range) with this coil at one area I hunt.

I've really been thinking about the 6x8 SEF. If you have the 5.3 put it on I've read good posts on that coil on this forum.
 
The 6x10 is always on my MXT, I run it at 10 on gain & 4 on disc. I have found many dimes at well below 6" I always run in relic mode & go low & slow. I have always suspected that my 6x10 matches up with my MXT better than other coils, I have a 10"dd & don't seem to get more than 1" better depth with it.
 
i noticed with the mxt and mxt pro i had the 6x10 dd never got any coins deeper than say 5 inches...i tried several 6x10 coils..now on my vx3 its very deep..i dont know why but it is..i have found plenty of coins in the 7-8 inch range..including several silver dimes at 8 inches. so it depends on the detector you have it on.
 
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