Minelab xtreme.

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Post  Greg on Sun Apr 04, 2010 6:43 pm

Good day All.
I know alot of you guys have purchased new detectors as they came along & alot of you guys would have had extremes at one stage & there must be heaps of experience with this detector but could anyone advise me of the depth I could expect in nth Qld. I have an xtreme with a coiltec. 14" DD coil & also a new 14x9 mono nuggetfinder coil.
Cheers Greg.

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Post  geof_junk on Sun Apr 04, 2010 7:29 pm

Provided you can tune your machine to a quiet stable threshold and ground balance you will get as deep as any other Minelab machine. If the ground is too noisy then a later model is the way to go.
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Post  kon61 on Sun Apr 04, 2010 8:25 pm

G'day Greg.

I've got to go with Geof on this one.Depth is dependent on many factors,eg.machine settings,type of coil used and most importantly ground conditions etc,etc.Since you only have one mono coil and one DD,if the ground does get to noisy,your 14"DD would be the way to go,and if the ground consists of low to medium mineralization,the 14"elliptical mono would be preferred for depth on similar sized targets over the DD.Once again keeping in mind Greg's comment."stable threshold & ground balance",which is of most importance in any area that you intend to search,and this law applies to all VLF&PULSE metal detectors.

cheers kon61.


Last edited by kon61 on Mon May 24, 2010 12:14 am; edited 1 time in total
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Post  Guest on Sun Apr 04, 2010 8:29 pm

Gday Greg


I had an extreme for a few years and did well with it, my only complaint was the unstable threshold, with a few changes like putting it on a coiltek pocket rocket regulated battery system, which seemed to help the threshold issue a bit, I also added a coiltek mini booster and used koss ur80 headphones, it became a very efficient detector.

I reasoned at the time that as I was doing well with it then upgrading to either a 3000 or 3500 would be a step in the right direction, and I should do better, ended up with a 3500 and after some messing about with battery systems, boosters and coils I ended up with a pretty good machine but I still think that over all the extreme still would have had the edge on the 3500.

You say you have a 14" coiltek dd coil ?, the best 14" coil I found to use on it at the time was the 14" round Coiltek dd Pro coil, the orange coloured one not the later creamy coloured one, it would handle some of the most mineralised ground far better than anything else I could get at the time, as far as depth goes I realised that is was a capable coil after scoring two ten gram lumps that were left behind in the middle of a patch that I came across, it had been raked and gone over with a fine tooth combe, they were about ten inches apart and at a similar depth of about 12or so inches down, giving a confused signal but enough to pull you up and make you dig to see what it was.

I found lots of other pieces with it, but the earlier 14" round coiltek dd coil I had before that was useless, no depth to it but it would snag the odd piece that was on or near the surface but that was about it.

The 14" nuggetfinder mono coil ? is it a round coil or an eliptical coil?, I think the round one might be ok on the extreme a its a pretty stable coil, but I found the eliptical 14" nuggetfinder to be a bit too touchy on the 4500 which handles mono coil well, so I dont know how it will go on the extreme.

Other good coils for the extreme are the minelab 8 and 11 inch mono coils, the commander series might be good as well but I have not tried them on the extreme as they were not available at the time, someone else may be able to give you some infor on them.


cheers


stayyerAU

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Post  deutran on Sun Apr 04, 2010 9:22 pm

Found a good combo on this detector was the 16NFdd round(the white one) set to deep and normal.Slightly heavy but as there cheap just lose the skid plate.Good depth and the first nugget will pay for it.The coiltek 14DD and 16DDnf run nice and quite in mineralised areas too.
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