tippyhound
New member
Recently talked to Sandy at Mine lab about what I could do to improve Target ID on my X-Terra 70 and she suggested getting a Double D coil for it. Anyone know how this will help and is it worth the extra expense?
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Double D coil for X-Terra 70
- Thread starter tippyhound
- Start date
BarnacleBill
New member
with Sandy was about. Did you happen to ask her why?
A couple guesses are:
1. Your soil has heavy minerals and a DD is less affected.
or
2. You have many targets in close proximity which are giving a mixed target response and the DD would offer better isolation of targets, therefore better ID.
HH
BarnacleBill
A couple guesses are:
1. Your soil has heavy minerals and a DD is less affected.
or
2. You have many targets in close proximity which are giving a mixed target response and the DD would offer better isolation of targets, therefore better ID.
HH
BarnacleBill
tippyhound
New member
We have some mineralization here in the Midwest nothing like the western states but she did seem to think that could be affecting the stability of my target ID.
She also mentioned that this machine was not really a good choice for a coin hunting detector which is my main type of hunting. I do not remember anything being said about better target separation by the Double D coil, but if that would be a help in stabilizing the target ID it would probably be a good purchase for me.
Another thing I have noticed is the dry ground conditions this time of the year make target ID numbers run some what higher then normal.
Thanks for your help.
She also mentioned that this machine was not really a good choice for a coin hunting detector which is my main type of hunting. I do not remember anything being said about better target separation by the Double D coil, but if that would be a help in stabilizing the target ID it would probably be a good purchase for me.
Another thing I have noticed is the dry ground conditions this time of the year make target ID numbers run some what higher then normal.
Thanks for your help.
BarnacleBill
New member
http://www.findmall.com/read.php?55,391759,391759#msg-391759
If she said: "She also mentioned that this machine was not really a good choice for a coin hunting detector.".. Then I guess she's not kept up with what Minelab was setting out to do with the X-terra series.
I mean, there are three models (the X-Terra 30, X-T 50 and X-T 70) and they all feature notch discrimination (typically used to eliminate unwated trash responses when coin hunting), and the preset patterns are typical of those used to eliminate smaller foil and pull tabs when coin hunting. Heck, they even names ther X-Terra's two operating modes Prospecting (All Metal) and COIN & Treasure.
Since they were not made for a specific application, such as water hunting or as a gold nugget hunting detector, then it seems pretty obvious that they were intended ... as with all the competiton out there ... to be a coin hunting detector with some versatility.
Monte
I mean, there are three models (the X-Terra 30, X-T 50 and X-T 70) and they all feature notch discrimination (typically used to eliminate unwated trash responses when coin hunting), and the preset patterns are typical of those used to eliminate smaller foil and pull tabs when coin hunting. Heck, they even names ther X-Terra's two operating modes Prospecting (All Metal) and COIN & Treasure.
Since they were not made for a specific application, such as water hunting or as a gold nugget hunting detector, then it seems pretty obvious that they were intended ... as with all the competiton out there ... to be a coin hunting detector with some versatility.
Monte
Mick in Dubbo
New member
Hey Tippyhound, My first question would be "what is not happening on your target ID that you think should be happening?" In other words, does it read higher or lower than you think it should? Is it inconsistent in the readings? Or does it just not come anywhere close to what the target ends up being? If the readings don't come close to matching the target ID charts I've posted in the past, I would have to wonder if your detector is working properly.
I think the X-Terra is a very good coin hunting detector. Like Monte mentioned, why else would it have notch discrimination and Coin/Treasure Patterns? I use several different detectors and have to say that the target ID of the X-Terra is just as good as any of them. In other words, if a silver dime reads a 36 or 38 on my X-70, you can bet the farm that it will read that same number every time I sweep over it. (unless being masked by adjacent trash). As well, that same dime will likely read 78 on my XLT, 66 on my XLPro and 3/28 or 29 on my Explorer. The point is, all detectors will read a different number. But each detector should read consistent numbers on like targets.
Having forgotten where you live, I can't comment on whether or not a DD coil will improve the performance of your X-70. I live in Iowa, and the soil in my neck of the woods is considered to be moderately mineralized. Some of my detectors only have DD coils available for them. And they do a good job. But, for those models that have either DD or concentric, I find the concentric to work just fine. I am more apt to change coils due to coil size than either frequency or DD/Concentric. Maybe I'm just not understanding how changing from concentric to DD will effect your TID.
Let us know what your specific concern is and we can better address the issue for you. HH Randy
I think the X-Terra is a very good coin hunting detector. Like Monte mentioned, why else would it have notch discrimination and Coin/Treasure Patterns? I use several different detectors and have to say that the target ID of the X-Terra is just as good as any of them. In other words, if a silver dime reads a 36 or 38 on my X-70, you can bet the farm that it will read that same number every time I sweep over it. (unless being masked by adjacent trash). As well, that same dime will likely read 78 on my XLT, 66 on my XLPro and 3/28 or 29 on my Explorer. The point is, all detectors will read a different number. But each detector should read consistent numbers on like targets.
Having forgotten where you live, I can't comment on whether or not a DD coil will improve the performance of your X-70. I live in Iowa, and the soil in my neck of the woods is considered to be moderately mineralized. Some of my detectors only have DD coils available for them. And they do a good job. But, for those models that have either DD or concentric, I find the concentric to work just fine. I am more apt to change coils due to coil size than either frequency or DD/Concentric. Maybe I'm just not understanding how changing from concentric to DD will effect your TID.
Let us know what your specific concern is and we can better address the issue for you. HH Randy
Jackpine Savage
Active member
What the X70 does see it reports very well and consistently. What Tippy may be running in to is the one thing I found lacking on the Xterras. A good target near trash of different conductivity can cause the audio on both targets to be cutoff and broken using the multi tone modes. This can be the same response you get on large relic type targets too. Old crushed/folded lamps parts for instance do not always sound clean as you sweep over, as the detector seems to read the change in conductivity value and switches tones in "mid read" causing both tones to be bad sounding. This is okay I suppose for cherry picking, but that is the reason I always hunted the 70 with 2 tones. Broken clipped responses in trash using the multi tone modes are a no-no in my book. I want a detector thst is quick enough to give a quick clean response on everything regardless of the number of tones it employs. There are a few that do that too. 
Tom
Tom
Personally, I like the 3-tone mode, but I know what you are talking about. I think the X-Terra series is fast enough to accomplish what it is that some of us are after. (and, it sounds like we have similar requirements). I like the X-Terra but am VERY ANXIOUS to see the smaller coil I have been dreaming about. It should drastically reduce any target separation issues. Not to stir up the pot, but Winter is setting in and I really hoped it would be here by now. HH Randy
Jackpine Savage
Active member
yet if the small coil will be a concentric or a DD? I enjoy the Advantage in trash with the small 7"+ DD ML coil. It is awesome in nail infested sites and gets very good depth on coins. 
SEMPERFI61
New member
ATTA-BOY-YOU CALLED IT RIGHT ON THE NAIL -HEAD!!!
Chuck@TreasureHut
New member
I have to wonder about the context of her "statement"? Was it more like "the Explorers are perhaps better coin hunters", or ??????
The X-Terra 70 is an awesome coin hunter/jewelry hunter/ and one of the best small gold hunting machines (in prospecting mode). Especially when fitted with the 18.75kHz DD coil (for the prospecting mode).
Sandy is very sharp, and I suspect that comment was taken out of context.
The X-Terra 70 is an awesome coin hunter/jewelry hunter/ and one of the best small gold hunting machines (in prospecting mode). Especially when fitted with the 18.75kHz DD coil (for the prospecting mode).
Sandy is very sharp, and I suspect that comment was taken out of context.