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Question about the 8x6 SEF coil

R

rlett

New member
Hello everyone,

I just bought a 8x6 SEF coil and first thing I noticed was how the VDI numbers were off. Is this normal when you buy a non-whites coil? I love how this coil picks through the trash. I am using the MXT Pro.

Bob
 
yes my 8x6 is also off a little next to the White's 5.3 it seems that vdi of 22 and under over 22 is right on with whites coils but that is alright with me as I dig all targets below 22 anyway
 
I am getting VDI's in the 80's and when I use my DX1 it shows in the foil range! The coil puts steel bottle caps as quarters. Do you think I got a lemon?

Bob
 
oh yes we were talking about the 8x6 sef I was also talking to someone about the dx-1 anyway my 8x6 hits true above Nickel i also use the pro
 
rlett said:
I am getting VDI's in the 80's and when I use my DX1 it shows in the foil range! The coil puts steel bottle caps as quarters. Do you think I got a lemon?

Bob
Click to expand...
Hey Bob. My guess is your coil is probably fine. Yes the VDI #'s will be off a little, that's typical. White's OEM coils will even vary a bit up and down consistently when you switch from the stock coil to larger or smaller coils. The SEF coil is equivalent to the DD coil and I'm here to tell you that the D2 "sees" bottlecaps as quarters regularly also (one of the few downsides I've come across with ANY Whites coils/products) and that's what it would appear is happening with your SEF. The DX-1 (1"coil) VDI reading foil when the machine's coil VDI is in the copper/silver range is also something I've run across with my Whites coils. I've found that sometimes the machine is fooled by regular, usually aluminum, trash and will ring it up higher on the VDI (70's - 80's) than what you would normally expect it to then when I throw the DX-1 into the hole it reads the target down lower in the "proper" range . . and is right ! Apparently the DX-1 is better at separating and identifying because of it's physically smaller size . . at least that's my best guess. I use this to weed out bad targets regularly thaat my machine is initially saying are good. The DX-1 will save you a lot of digging this way. As I said, I think you have a good coil. You obviously pay very close attention when you're hunting so check it out, see what you think and let us know what you determine. Good luck . ..oh yeah and by the way this is all JMHO.
 
Scott's opinion is right on but what bothers me is the wide spread in VDI's with the main coil and the DX-1. Did you dig the target and see what it really was? My guess is there was two targets in the hole and your main coil saw one of them and the DX-1 saw nearby trash. A small deviation in VDI's with different coils, including the DX-1 is normal, a wide spread in VDI's is not. In the case of the pop tops coming in as quarters is the main drawback of using a DD/SEF coil and that is the one case where the DX-1 will give you the right VDI and the SEF will try to fool you.
 
Hey thanks for the info. I will take it out again to test some more. Larry I did check that hole and only a rusty steel bottle cap was there. I checked all of the holes since it was making me crazy trying to figure it out. This coil will give a copper penny a VDI #s of 78-80. I am going to write down some of the VDI #s today. I live in Indiana and I use the MXT Pro, I have had the MXT since Nov. and love to get out with it. You all are such great help.
 
Yep, the ole nasty rusty bottlecap, DD/SEF coils love them because of the configuration of the windings. If you are working an area with lots of them, you might want to switch to a conical coil. I know there has to be some tricks with the MXT using the DD coils and ID'ing bottlecaps...... MXT users?
 
First my setup.
I use an MXT with a 6X10 DD coil and hunt in relic mode, trigger center, track ground, gain pre-set to +1, disc. 2 and slight hum threshold.
When I hunt in Parks and sites that have a number of bottle caps and I hit that "quarter", I back the coil off the target and work it slowly back to the target.
A quarter will show a positive signal and a bottle cap will show iron just as the coil starts to hit the edge of the cap/quarter.
Hunting in relic I get the grunt for the iron and the chirp for the quarter.
Now this is not fool proff... It's just how I try to differentiate between the two.
I still dig a bunch of caps just to make sure!!
There is only one way to tell for sure!!!

HH
 
Larry you are right about the rusty ones....they seem the worst. I took it out at lunch and it was better, I just need to learn this coil. Thanks for all the help I was about ready to throw in and towell and send it back. I do like the way it cuts through the trash.

Thanks Everyone,

Bob
 
Hey rlett, HuntinDog's "edging" technique for trying to differentiate between quarters and bottlecaps is the best (and only) method I've learned about. As he says, it's not foolproof but does help a lot. Good luck.
 
Thanks, I will try HuntinDogs method next time out. You guys are the Best!

Bob
 
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