Jump to content
Steve Herschbach

X-Terra 70 & X-Terra 705 As Nugget Detectors?

Recommended Posts

I couldn't even imagine what that would be like to detect an area with 2000 years of iron and other metals . But I do know what it is like to hunt relatively small areas with thousands of people working and leaving trash everywhere over course of 100 or so years.  Mines in montana and Idaho. In one area the is still a bulldozer resting on the bench of a creek from 1930's .

Share this post


Link to post
Share on other sites

You need a machine with a fast recovery, and to be able to lower the Iron volume or run it in One tone so the junk gets nulled.

John.

Share this post


Link to post
Share on other sites

F75 dst and 3,5X6 deus and Lobo on 5,75 is giving me good result the Vista gold with 6" was good too,otherwise any tesoro with the 4" is good u will never know what u gonna find some places the machine won't even work so we use trowel and knee pads we call that scratching.Or Eyes only u find stuff too depending of course of the spot.Just bought a all time favourite a 1266XB with case and 2 coils for 210 euros inc delivery!!!!:)

 

 

RR

Share this post


Link to post
Share on other sites

Well goldskr 4000 I guess you said it all when you said to take the time to learn the machine.  I've decided I like the x-terra 705 and I'm getting the small 6" coil,  It may be comparable to the GMT and  GB2 after all.  Have you ever found any use for the beach ground balance in gold prospecting?

Share this post


Link to post
Share on other sites
8 minutes ago, Haal said:

Well goldskr 4000 I guess you said it all when you said to take the time to learn the machine.  I've decided I like the x-terra 705 and I'm getting the small 6" coil,  It may be comparable to the GMT and  GB2 after all.  Have you ever found any use for the beach ground balance in gold prospecting?

The 705 is a great machine but the GMT and the GB2 are about 10x hotter and even at reduced gain settings they will see much smaller targets, but the 705 will work a bit better on larger Gold in hotter mineralization,

J.

Share this post


Link to post
Share on other sites

I have used the beach mode on Scratch Gravel Hills in Helena Montana. The entire hill system is made up of granite. It is rotten and in the gullies you can dig down two feet and constantly hit visible thick layers of magnetic black sand. It helped a little but the quietest detecting I had was with the 15" HF, surprisingly. There have been nuggets found up there as large as 9 ounces detecting. It is definitely an area ideal for pulse induction.

  • Like 2

Share this post


Link to post
Share on other sites

I have been using the X Terra 705 since 08 or 09 but for me what I have found while using the 705 on hot ground or mild ground that less gain equals more with the 705 and maybe that is why I have gotten along with the GM1000 so well when i am running the X TERRA 705 if I get into an area that has lots of hot rocks or it becomes unstable from the ground I start lowering my sensitivity and it usually quiets down,I run in prospecting mode almost exclusively with tracking activated the thing with the 705 you have to learn to trust that the GB tracking is working which I do trust I have seen GB numbers as high as the mid to high 40s and as low as single digit numbers within a 10 to 20 foot area, with the X Terra 705 the lower the GB numbers the hotter or more mineralized the ground is but even though I run with the GB tracking activated I still will occasionally stop and re ground balance and check the GB numbers just to see what the GB numbers are.

I found the best find for me back in 09 with the 705 while I was living in Ohio the house I owned was built in 1889 and its pretty much what got me into detecting the only info that I could ever find out about the house in my research of it was there was two bank robbers had been arrested in it , it was on about 3/4 of an acre and for the first 3-6 months I did nothing except detect the front and back yards found several mercs some of which were down to 10 or 11 inches deep and other silvers and good things but the best find I ever found and still to this day have not beat for me was under the house which had a basement with an attached crawl space the crawl space had a dirt floor and was big enough that once you were inside of it you could stand up and swing a detector while detecting the crawl space in the furthest back corner I got a hit with numbers that were jumping all over the place I dug up a box that someone had buried it contained all kinds of coins in the box lots of silvers and other coins but the best coins in it was 12- 2.5 dollar gold pieces I don't know at this point what would ever top that find for me maybe that 2 pound gold nugget but for me i will always remember that find

I have always felt the the X TERRA 705 was and still is one of the most under rated detectors on the market,still to this day even though I have been using the 705 for as long as I have been I still learn new things about it that amazes me if you have one and do not like it you haven't given it enough of a chance and learned all of its great features the X TERRA 705 is the one detector that will always be with me until either I or it dies thats how much I love the 705 I have used other detectors but none of the others I took to like I did the 705 me and them just did not click so I ended up getting rid of them but the 705 still lives with me for those thinking about getting the 705 download Randy Horton's E Book on the Minelab site and read it several times its a great free book with lots of great info          

  • Like 3

Share this post


Link to post
Share on other sites

Interesting DSmith.  I feel that way about the mxt, but in the last 2 weeks I'm being converted.  The xterra 705 is a confusing machine for tech challenged like me, but well worth the effort it turns out.

Share this post


Link to post
Share on other sites
2 hours ago, Haal said:

Interesting DSmith.  I feel that way about the mxt, but in the last 2 weeks I'm being converted.  The xterra 705 is a confusing machine for tech challenged like me, but well worth the effort it turns out.

Trust me Haal I am not that tech savvy neither but the one thing I do with the 705 is play with settings in it if I set something up in it that just doesn't seem to work then I do a factory reset and start over thats the way I have learned it, for me it seems I always end up back at the factory settings which always seems to work best for me the other thing I have done is learned to trust what the 705 is telling me and usually the 705 is rite as far as what it is telling me its really hard to explain to someone until the bell goes off in your head and realize to trust what the 705 is saying and believe me it took about 2 -2 1/2 years for that bell to go off in my head but once it did I started having a love affair with the 705 LOL.

  • Like 2

Share this post


Link to post
Share on other sites

Haal the 705 is actually a very easy detector to learn. Like DSmith said play with it and see what happens each time you try it. A couple things to remember that are very important. If you run the 705 in the preprogrammed coin mode you will rarely find the good old coins because those TID's are blocked out to be rejected. Read Randy Horner's ebook and set one of your preprogrammed modes to open up the tide for those old coins and watch your best and oldest coin finds stacking up. The other thing play with the other tones that are on there. Don't just stick with the 99 tone as minelab calls it. It is actually one tone for each tid notch. Try the 4 tone and two tone. Never ever pass by a target for example 10 12 and with it -6 -8 if those 4 tids keep coming up it will be a nickel with a nail or other piece of iron.

  • Like 3

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

    • By Steve Herschbach
       

      It was just this spring that I noted the price for the Minelab X-Terra 705 had dropped to $600. I thought that was good, but somewhere along the way the price dropped again to $499. As of today I find these internet prices...
      X-Terra 305 $259
      X-Terra 505 $349
      X-Terra 705 $499
      This makes sense with the new Equinox 600 coming in at $649 and Equinox 800 at $899. The X-Terra 705 can be had standard with a 7.5 kHz 9" round concentric coil for $499 or you can also get it standard with a 18.75 kHz 5.5" x 10" elliptical DD coil for $499. The higher frequency elliptical coil variant is known as the X-Terra 705 Gold. Note that the X-Terra can change frequencies by changing coils so owners of either version can have the other by buying the appropriate coil.
      I don’t think there is another detector out there that matches the X-Terra 705 for features at $499 and it has an excellent threshold based all metal VLF Prospecting Mode. In particular the X-Terra 705 has every ground balance option possible - Ground Grab, Manual Ground Balance, and Ground Tracking with Tracking Offset. It also has a special Beach Mode that allows it to properly ground balance to wet salt sand conditions.
      The $500 segment is really heating up!
      Understanding Your X-Terra by Randy Horton is a free 95 page color booklet on how to get the most out of your Minelab X-Terra but with information that owners of any metal detector will find valuable.
      Minelab X-Terra 705 Field Guide
      Minelab X-Terra 705 Owner's Manual / Instruction Guide

    • By Goldgrabber
       
      A nice woodland hunt video where I found 6 nice coins with the oldest dating back to 1908. Along with the coins I found a couple of bullets, rifle casings, toy guns and a few other bits and bobs. The metal detecting dig was done with my Minelab X-Terra metal detector which I've been using the last couple of months and the Minelab X-Terra hasn't let me down yet. There is a photo of the coins at the end of the video showing more detail and I'll be back out with the xterra 705 soon.
       
    • By Jackpine
      I had been running my threshold setting at 7 to get the slight hum in my phones and it finally dawned on me this is not an optimum setting for picking up deeper fainter signals since a setting closer to 0 should be best.  Having always ran the detector volume control in the upper ranges and using the headphones to control the audio level, I decided to switch it around by setting the headphones to max and using the detectors volume control to set the overall audio level.  This made a huge difference, now I can get that same slight hum with a threshold setting of 2. Subjectively there seems to be much less modulation on the deeper targets where now coins in the 10"+ range are much louder hits.  I'm also running the detector volume control at 4 to 5 to get the same audio volume I was getting before with it set in the mid 20's.
      Tom 
      OK so I decided to do some air tests to see what difference there is in audio modulation and on coin size targets there is a difference in audio the last few inches.
      First number is a full audio report distance (or as close as my ears perceive it), second number is the distance target lost.  The difference between is the amount of audio modulation where the target volume decreases to the point the signal is lost.
      The first column is with the headphone volume at max and threshold audible at 1 setting (0 is silent),  second column is detector volume at max with threshold at 7 (6 silent)
      Headphones max......................-... Detector max dime............. .............9" /10" ...- ..7" / 10"                 Buff nickel......9-1/2" / 10-1/2" ...-.. 8" / 10-1/2" IH penney..........10" / 10-1/2"....-....9" / 10-1/2"    As we see there is no difference in detection distance between the 2 settings but a more modulated audio response with the detector volume at max.
      I also tried the dime with the detector volume at max with a 0 threshold setting and the results were a full volume report to 6" with a max detectable distance of 9", for a 1" loss. Because of this it is apparent that ML has designed the threshold level to follow the volume setting (7 equals 1) which would allow max sensitivity when the detector is used without headphones in cases where a high volume setting is needed to overcome ambient noise.   The loss of response on the dime indicating a negative threshold setting because at this volume setting 6 is actually zero.
      Since these were coin sized targets and not tiny nuggets the difference could be even bigger when nugget hunting.
       
       
    • By GB_Amateur
      This is primarily a coin and jewelry hunting topic, I think.  Getting more experience with different detectors, I'm wondering if I'm seeing a common (but hopefully not guaranteed) issue.  What I'm referring to is called 'wrap-around' and I'm sure it has other names.  Basically the low end of the induction balance (IB) ID scale is low conductivity iron and high end is pure silver.  But sometimes with iron you get a high ID, usually in conjunction with the low ID.  I've had this happen on three detectors but don't remember it on a 4th.  The three are:  White's DFX-300 w/ 950 concentric coil (least experience), Teknetics Gamma 6000 w/ egg-shaped conc. coil (intermediate experience), and Minelab X-Terra 705 w/ both 7.5 kHz 8.5" round conc. stock coil and Coiltek 3.0 kHz 6" round DD "Digger".  I don't remember this problem with my Gold Bug Pro with any coil.  I go into detail here with the 705 because I've used it the most in iron infested sites.
      The lowest ID on the 705 is -8 and the highest is 48.  (All even numbers except 0 in between occur but never odd numbers -- by design.)  Iron is anything below 0; high conductive coins (Cu and Ag alloys) are above 35 (usually) with silver dollar being highest US coin at 46.  (Don't know what a pure silver round would read, maybe 48, but who drops those?? )  In the US Midwest we mostly have moderately low iron content (at least compared to US West) -- may be exceptions in iron mining areas like Minnesota and Michigan Upper Peninsula.  I've seen phase auto at 35 with the 7.5kHz coil and 8 or 9 with 3 kHz "Digger" (don't know why the disparity...).  I run max tones (~30 of them?) in "Coin and Jewelry" discriminate and alternate between "all metal" and notching Off below 0 and also notching Off 48.  Note: this detector has a prospect mode but that operates quite differently and I haven't used it for hunting coins, although I see that some have.
      Even with the notching described above I get 46's and even 44's on iron targets.  In all metal I can hear the jumping between iron ID's and high conductive ID's, but this can (and does!) happen when you're going over a coin near a nail, for example.  The hope was that I could listen to tones and not have to look at the screen, but that doesn't seem to work well for me in the iron infested parks I hunt.  I'm sure with more experience (and, yes, I've read Randy Horton's "Understanding the X-Terra" multiple times) I'll get better, but I still find myself, even in max tones, having to look down at the screen way more than I would like.
      So I guess I have a two part question:  1) is this an inherent problem in all coin hunting and multipurpose IB detectors, and if not, which ones are immune to it?  2) Do you have tricks, besides over-notching, to work around this problem?  I've found enough old coins that I don't want to notch out halves (ID=44), because I know, although rare, they are out there.  Lastly, I'm not interested in modern coins, although those come with the territory.  So far I've found old coins at shallow depths (4 inches or less) and none deeper, although I'm sure they are there.  I dig lots of pulltabs (square but mostly ring & beavertails) and don't mind that.  There are coins in that zone and I'm willing to put up with the Al in order to find them.
    • By Steve Herschbach
      People send me emails or PMs asking questions and I now have a new policy whereby I will post and answer the question on the forum, then aim them at the answer on the forum (names left out). The whole point of asking questions on a forum is everyone gets to share the answer, plus other opinions can be sought. That gets lost with email and PM.
      "Regarding the Racer 2, I know you will point me in the right direction, I am looking for a Racer 2 or the X-Terra 705, will be doing coin and jewelry hunting as some beach hunting (two or three times a year) in dry and wet sand, so which one do you recommend? Or do you think they are about the same?"
      They are very similar detectors in a lot of ways and having used both I don’t think either has any particular magic ability over the other. Nothing a more casual user would perhaps discern anyway. If you are really into your detectors there are feature differences that may or may not be important to you so look carefully at the feature list of both detectors. For instance, if you are into tones, the Racer 2 has mono tone, two tone, or three tone hunt modes. The 705 has mono tone, dual tone, three tone, four tone, and 28 tone modes. However, on the X-Terra how those tones are laid out is preset and cannot be modified. The Racer 2 lets you shift the ranges on the two tone and three tone modes and even change the pitch of the sounds. So while the Racer 2 has a limit on the number of tones within those limits it has more ability to be customized. I like that. I also like full tones so the 28 tones on the 705 appeals to me. That is the sort of stuff one has to weigh.
      These are the sorts of things that matter to me and that I look at. People always talk about depth and that is a waste of time discussing in most cases. It varies due to the ground minerals at each location and all VLF detectors worth the name are so close it results in endless debates. It is just hair splitting. Now when it comes to picking out different closely spaced items one from the other the Racer 2 has an edge from being a faster response detector. This can help if picking through dense trash. But again, that is more a feature expert hunters appreciate.
      The Racer 2 runs at 14 kHz. The 705 can be had stock in 7.5 kHz or 18.75 kHz versions, and customized via coil options to run at 3, 7.5, or 18.75 kHz. This seems impressive but in real life has not been a huge factor with the X-Terra because having to change coils to change frequencies is cumbersome. Still, if chasing small gold nuggets was an issue the 705 at 18.75 kHz might have an edge though the Racer 2 is surprisingly hot for 14 kHz.
      The bottom line is it is like having me try and choose between two different sets of similar hiking boots for you. They are too close to tell which will fit you better and either way I could be wrong. I can use either detector and be happy. My best advice is scrutinize the feature list and both owner manuals online and see if any feature really pops out at you as being something you care about.

    • By GB_Amateur
      I'm considering buying (yet) another coil for my ML X-terra 705 -- 15 inch DD operating at 3kHz.  Often Minelab and Coiltek offer complementary (different size/frequency/winding) coils, but in some cases, as what I'm considering, they offer coils that appear to be quite similar.  Given that the Coiltek costs about 50% more, I'm wondering if I should apply the "you get what you pay for" standard advice or save $100 for a future coil purchase. 
×