10" DD @ 7.5 khz

[ejudasf]

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[Mike Hillis]

Sounds good. We will agree to disagree.

I don't know anything about the ExpII. All my DD experience comes from Tesoro and DFX and T2. Tesoro runs round DD, DFX & T2 run eliptical DD.

Perhaps they will soon produce at mid freg 5x10" DD and a smaller one, maybe a 5x7"? Right now I'm just happy to see a DD in the middle freq.

Good Hunting to you, Jerry aka Tinfoil.

 

[Tinfoil]

Got a DFX. Soon as the DD's came out got the shooter and the DD threw that Concentric in the box and it has never been on the DFX. Never had a round DD for the DFX didn't know they made one. Always used the 5x10"DD and the little Shooter DD. Hardly ever use the DFX anymore. Use the MXT more then the DFX. HH Mike Jerry aka Tinfoil.

 

[Gary in Daytona]

I was reading your thread with some interest and it became obvious that we all buy DD coils for different reasons. For trashy areas (which I admit I seldom hunt - it's just not fun hunting to me) I prefer a 5" or 6" standard coil and I use the X5 and the 5" coil. That coil has great separation, pinpoints on a dime, and you can pick very small items out of a cluster of junk items.
However, I DO prefer a DD coil for the beach or open areas because the coverage is better and I know I don't have to overlap as much. It's probably a perception thing, but when I cover open areas with a DD, I feel like the coverage is better with a round DD as opposed to the eliptical one. Yes, I know the detection path is a narrow blade the length of the coil on either one, but I still feel like I'm getting better coverage. The Sunray S12 is a great example. I love that coil and found huge amounts of finds on the beach in heavy iron junk after the hurricanes. On the other hand, I hated the 14" eliptical DD on the DFX. I found it heavy, extremely noisy and lacked the depth I though I should get with a coil that size. I never did well with that combination.
So I'm thinking it's possible that Minelab was thinking of the type of detecting other than trashy sites when they released a round DD and still have a small eliptical up their sleeve. I certainly hope so, because with the coil choices possible, the X-terra 70 is the most versatile detector on the market today.

 

[Tinfoil]

I think the 10" DD is going to be great at the beach and the open and less trashy areas. I think that you will be able crank the Sensitivity up a little more and run it a little hotter at the beach. It is going to see the beach mineralization less. I fugue it will get a little more depth then the 5x10 18.75DD. I think it will be a good relic coil. Hey, I keep this up I will talk myself into one and be calling Dugger to send me one. When I go by there on my way to Jacksonville Fl to see the kids I am going to drop off some of my detectors for him to sell for me and maybe, he will let me use his 10" Excalibur for some water beach hunting over in Jax. I hear that is a fine machine but, they leak and have trouble with there coil and earphone wires but if I like it and find out they have fixed the leak problems I will return his and buy one and sell my CZ20. My Cz 20 is one of the first ones to come out and I sent it back to the factory not long back and they went thru it completely and even put me a new housing on it. The machine looks just like a new one. I had them juice it up for me. The Excalibur is going to have to do some walking and talking for me to buy one and beat my CZ20. I don't think the sensitivity, on the new X70 10" DD, to the gold is going to be much different then the 9" concentric. Maybe a little less if any. I know the concentric is very good on some of my very small gold even in the beach mode and that says a lot for a 7.5KHz coil. I have a little gold cross that is 3/32 wide at 7/8" long, the horizontal cross part is only 1/16 wide 7/16" long and it is .030 that is 30 thousandths of a inch thick. It is 14KT . The only machines that will ID the target in Discriminate mode is naturally my shadow X5 with all the coils even the DD which is what I found it with in beach mode on a salt water beach wet sand, my MXT in beach mode and and low and behold my XTERRA 70 in the beach mode with the Elliptical 5x10DD and even the 7.5KHz 9" Xterra coil. Now that was a real surprise to me. Of coarse it don't beat my Shadow X5 but there ain't a machine out there that I have owned that will beat my "Miss Sweetie" Shadow X5 and I have had all the good ones. Well Gary, I have been rambling on here hope, no one got bored. Maybe someone else would like to ramble a little on the new 10 7.5KHz Xterra DD. Man I love this being Retired I got time to hunt and get on the net also . I can even get a little . I have to be very careful in how I say thing though and watch how I put things in context so I don't bust my own bubble . Keep hunting the beaches over there. I am going to go down to Cape Coral Fl. and hunt with my buddy Chuck down there for at least a week or maybe two. Later bud Jerry aka Tinfoil.

 

[ejudasf]

or have any wiring problems. I did swap out the headphones, and put on Grey Ghost water phones on. I also put on the 10-inch Tornado coil on it. A real nice Straight shaft as well.

I also got a Sovereign Elite, with the 180 meter mod, and also the tone mod. The tones are a little higher.

The only comparison I have done with a few water machines is when my buddy came down from Dallas with his CZ20. We didn't have lots of targets, but any target I detected, he could detect. Also any he detected, mine detected as well.

Now I run my Excal or Sovereign at the highest sensitivity with a little chatter. I think that is how I like it after all.

My X-terra hasn't seen the beach yet. But when it does, I will also take my Excal just in case.

I have also used the X-5 at the water's edge, and found it to run stable. I just never got to use it at the beach and walk for about 2 hours. That may be my only regret, but now that I have an X-terra 70, it's okay.

My assumption on the X-terra 70 is to run it with 2 tones and dig all high tones only. Has anyone ever dug an 'iron' tone and got a good find instead of iron?

laterz

 

[Gary in Daytona]

And my results "shadow" yours. The X5 was by far the hottest on small gold. It slammed on everything including all the chains I tried no matter how small if they were bunched just a little. I did not test gold nuggets because I don't have any. I used the 7" coil but I'm fairly sure the 5" or 9" would have hit most targets. The X-terra 70 with the HF coil also hit all targets in all metal, and most in Pattern 3. But on the smallest items, the hits were scrappy so the ID was not great, the numbers tended to jump into negative on the smallest gold. It made me aware to investigate a few more targets in the field. The 70 was just as responsive as the X5 on all targets in the prospecting mode. That is one impressive detecting mode! Unfortunately, I can't use PM on the beach because of the salt sand. The other detectors I tested, including my favorite beach machine, the Excal and (to me), the White's PI Pro, couldn't see some of the smallest objects and several of the chains.

Here's the items I used. Hope the photo is good enough to determine how small and thin some of these items were. Very impressive test for the X-terra.

:

 

[steve herschbach]

Hi Mike,

I simply cannot let that one go by. The field on the round DD is wider and deeper than on an elliptical DD and therefore will not get the same degree of target separation. DD coils do not have a narrow "blade" shaped field with sharply defined edges. That is marketing nonsense backed up by lots of totally inaccurate charts. Yes, the field is slightly narrower and longer than on a concentric coil, but not anywhere as much as people think. As Jerry noted, at depths under a few inchs DD coils signal from edge to edge. If you do not believe me, then you'd better dig out an elliptical DD coil and round DD coil and check them out. Place two targets 5" apart. The 10" x 5" elliptical will see them separately. A 10" round DD will hit both at the same time.

The 10" x 5" will have far better target separation in trash than a round DD coil.

Steve Herschbach
Steve's Mining Journal

 

[Mike Bearden]

And I can't think of a better test to prove it than what Steve has posted .
There surely is a DIFFERENCE.
Mike

 

[Tinfoil]

I have got to tell you that I really like this X70 and 5x10" DD at the beach. Our beach here is salt and fresh water beach but taste like salt water. Went down there today and hunted. I knew since Hurricane Rita, you know the one nobody talks about and thinks it didn't do any damage. Lake Charles took 120 to 140 winds, all kinds of little tornado's and it whipped this whole area for 12 hours all the way from the coast which got leveled just like over in Mississippi. We didn't get leveled like the coast but it tore this city up. My beach just got messed up bad. All the hard work some of us water hunters did cleaning out the water of all the pull tabs was all for nought. It is back just like it was when I first started hunting the water and has got to be done all over again. Everything came off the beach back into the water. What a mess. Anyway the X70 really impressed me. I was only looking for deep targets and I was digging 4,6, and 8 TID signals down 6 and 8"s. Bent beaver tails,beaver tails,stuff that was on edge and some real small stuff. I don't guess the 5x10" is going to come off for any time soon. Still have two real bad places to hunt on the salt water beaches before I really decide wheather I want to say it will be a keeper or not. One over in Galveston Texas and there is a real bad black sand beach in Jacksonville Fl. it has to prove it's self on. So far I really don't see it not proving it's self in these last two spots. I still have to take it to my fresh water beaches and see what it will do on the small stuff. Later guys and thanks for the back up. Jerry aka Tinfoil

 

[Mike Hillis]

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