This is an Open Forum to discuss any metal detecting questions or subjects. Please feel free to discuss any subject, in good taste and with due respect to all users. Thomas Dankowski frequents this forum and is happy to share his knowledge and experience to answer questions along with many other metal detecting experts who frequent this forum. http://www.dankowskidetectors.com/discussions/list.php?2 Thu, 09 Sep 2010 23:17:33 -0400 Phorum 5.2.15a http://www.dankowskidetectors.com/discussions/read.php?2,9024,9137#msg-9137 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9137#msg-9137 fisher cz-3d Thomas Dankowski Open Forum Thu, 09 Sep 2010 23:09:12 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9136,9136#msg-9136 http://www.dankowskidetectors.com/discussions/read.php?2,9136,9136#msg-9136
Question(s)
Is there such a thing as a five inch CZ Quicksilver "Double D" search coil and if so... how well does this coil operated when compared to the standard concentric CZ coil?

Thanks in advance,
-NEBeachcomber]]> NEBeachcomber Thomas Dankowski Open Forum Thu, 09 Sep 2010 22:07:37 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9135,9135#msg-9135 http://www.dankowskidetectors.com/discussions/read.php?2,9135,9135#msg-9135 kcsteve Thomas Dankowski Open Forum Thu, 09 Sep 2010 21:49:10 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9132,9134#msg-9134 http://www.dankowskidetectors.com/discussions/read.php?2,9132,9134#msg-9134 JeffNS Thomas Dankowski Open Forum Thu, 09 Sep 2010 19:00:44 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9133#msg-9133 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9133#msg-9133
In short the conductive number will almost always be true and the ferrous number will be close. When a target is masked, the target may only hit correctly from one direction but it will consistantly hit correctly from that direction. If the target isn't masked and is either shallow or deep the conductive number target will usually hit with a correct conductive number from at least two directions though as depth increases the ferrous number will become more unreliable. The conductive number is the key to getting deep and/or masked targets with the ET and the Explorer lacks this ability. The F75 and hte F75 LTD gives me an unreliable TID at depth but it could be the mineralization here. I don't know if the TID would be better at depth in neutral soil.

The SovereignGT also has an amazing TID on targets at depth but not on masked targets... the E-TRAC rules the roost on masked targets as far as I can tell, though I must say that I am interested in trying the F75/T2/Omega with 0 disc, identifying the common iron at a site and then digging iron signals that are different... that may be a game changer.

I am convinced that I can do everything I want or need to do with an E-TRAC, F75 LTD, T2, Omega-8000, SovereignGT, and a Tejon... and a whole bunch of coils... laff.

Sounds right huh? Seriously though the E-TRAC is an amazing machine and it is easy to use if you will just trust it and NEVER, EVER try to make is be an Explorer!!

Julien]]> jbow Thomas Dankowski Open Forum Thu, 09 Sep 2010 18:50:35 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9132,9132#msg-9132 http://www.dankowskidetectors.com/discussions/read.php?2,9132,9132#msg-9132 Pullringking.]]> Pullringking Thomas Dankowski Open Forum Thu, 09 Sep 2010 18:05:22 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9131#msg-9131 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9131#msg-9131
Rotating your Grnd Bal knob whilst sweeping coil.......is NOT ground balancing the unit; rather, it is a way to "find the least noise/chatter". Has NOTHING to do with balancing to the dirt. This method works on quite a few CZ's.....and in quite a few types of dirt.]]> NASA-Tom Thomas Dankowski Open Forum Thu, 09 Sep 2010 17:45:13 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9130#msg-9130 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9130#msg-9130
I would like to see a 4.5 - 5.0 Khz single freq unit ...... and built by Dave Johnson or maybe Bruce Candy.]]> NASA-Tom Thomas Dankowski Open Forum Thu, 09 Sep 2010 17:33:13 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9129#msg-9129 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9129#msg-9129
J]]> jbow Thomas Dankowski Open Forum Thu, 09 Sep 2010 17:08:08 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9128#msg-9128 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9128#msg-9128
To begin with...I'd suggest GBng (fast or accurate method...not alot of difference between the two IMHO) Fast method is easy and quick. Raise coil to waist level with Volume=10, Sensitivity=10, GB=10, All Metal Mode. Depress PP button and hold in while you lower the coil to rest flat on the ground (make sure there's no metal before you start). Begin turning GB dial counterclockwise until the background threshhold hum/buzz just barely dissappears and you're good to go. Now...turn that volume down to 5, set Disc=0, Sensitivity at between 3 & 5 max....get out there and put in some hours (50 - 100hrs). Dig all the mid & high tones and learn your machine. Once you're used to it you can begin setting sensitivity higher...keeping in mind that with sensitivity increases also comes the risk of target masking as the search area of the coil is increased.

As for being frustrated...c'mon up to Canada and try figuring out ANY detector to dig post 2000 clad and you'll learn the true meaning of the word.

Happy Hunting]]> JeffNS Thomas Dankowski Open Forum Thu, 09 Sep 2010 15:42:02 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9127#msg-9127 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9127#msg-9127 -------------------------------------------------------
> That can sure do it!! Speaking of which, whenever
> I see someone getting a detector back from the
> service department and it's not working right, I
> have to wonder if the real problem isn't the
> shipper doing the same thing? I mean these do come
> out of El Paso, one of the hottest places in the
> country and the last time I checked, delivery
> trucks aren't air conditioned. I also wonder if
> some of the same sorts of problems folks report in
> the summer aren't due to the same thing you said
> you did? I know I did the same thing ONCE!!! Live
> and learn my friend.


Yes, live & learn, it still works, just the all metal ground balance is acting strange almost like the rheostat is bad, some like it hot, well mine don't.
Tri]]> Tri Thomas Dankowski Open Forum Thu, 09 Sep 2010 15:20:58 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9126#msg-9126 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9126#msg-9126 fisher cz-3d Thomas Dankowski Open Forum Thu, 09 Sep 2010 14:20:46 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9125#msg-9125 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9125#msg-9125 fisher cz-3d Thomas Dankowski Open Forum Thu, 09 Sep 2010 14:17:59 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9124#msg-9124 http://www.dankowskidetectors.com/discussions/read.php?2,9024,9124#msg-9124 fisher cz-3d Thomas Dankowski Open Forum Thu, 09 Sep 2010 14:11:09 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9123#msg-9123 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9123#msg-9123 Scully Thomas Dankowski Open Forum Thu, 09 Sep 2010 12:59:41 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9122#msg-9122 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9122#msg-9122 BuckeyeBrad Thomas Dankowski Open Forum Thu, 09 Sep 2010 12:59:10 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9121#msg-9121 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9121#msg-9121
Edit: Well I did not read all the prior posts so most of this is duplication. Tom D stated the reasons well.

Hopefully the new high performance 'front end" of the GB/G2 (at the 'right' freq.. whatver that may be) will morph into a deep dime machine.

Tom]]> Jackpine Thomas Dankowski Open Forum Thu, 09 Sep 2010 07:44:20 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9120#msg-9120 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9120#msg-9120 perhaps leaving it set in an air conditioned room for a few days might make it feel better!

(h.h!)
j.t.]]> jmaryt Thomas Dankowski Open Forum Thu, 09 Sep 2010 02:21:57 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9119#msg-9119 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9119#msg-9119 in layman's terms,a 6.5 khz (v.l.f) single frequency detector
with equal transmitting power as the multi frequency e-trac,will (i.d) a silver dime
in light to moderate mineralized soil as well as the e-trac,or perhaps better because of the lower frequency?

thanks!

(h.h!)
j.t.]]> jmaryt Thomas Dankowski Open Forum Thu, 09 Sep 2010 02:13:20 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9118#msg-9118 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9118#msg-9118
YES..............using monotone and a Disc of '6' .... is a cheap way of tone-break/split-tone on the F75; ,,,,, but/yet/understanding that... you can only hear one side of the split (a single tone will be heard when a target is ABOVE the Disc setting). I would like to hear all of the metal objects that are in the ground...that are below the Disc setting; but can not achieve this....any time Disc is employed. Any time a target (or....especially a composite of targets) are under the coil....that are ABOVE the Disc setting................................the detector will report a good and solid tone............even if the composite of all the targets is STILL within the 'iron' range (above '6'....but below '15'). If monotone is selected........this will not matter. You will still receive/hear a good & solid tone.....and will MOST PROBABLY still dig the target. IF IF IF you are in a multi-tone option with a Disc of '6'........you will receive/hear the low 'iron' tone on a composite of targets that ID's below '15'.....but still above the Disc '6' setting. Chances are............you will NOT dig these audibly solid sounding (iron tone) targets..........as most folks do not dig the low iron tones. Utilizing Disc '6' and monotone...........and you are more likely to 'investigate' the audibly solid hits....regardless of the VDI.........EVEN IF it is in the 'iron' range.

Yes, dirt mineralization can (somewhat) alter these settings/performance.............making it a necessity for you to find out what YOUR local conditions/settings will need to be. Your dirt will dictate. I do know that Chicago dirt (somewhat mineralized.......requiring Grnd Bal.....GB was '45') did not alter the "Disc 6" (and monotone) requirement.

Tom]]> NASA-Tom Thomas Dankowski Open Forum Wed, 08 Sep 2010 17:40:12 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9117#msg-9117 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9117#msg-9117
Over a decade ago, I had a few (self created) acrylic plastic cubes with ferrous metals and 1 non-ferrous metal target visibly "suspended" in the plastic. I used small-test filament fishing line to suspend the targets at exacting X-Y-Z three-dimentional coordinate axis points in the rectangular cube BEFORE pouring the acrylic into the mold. A Chief design engineer confiscated my complex-target test-standard tools (acrylic cubes) from me.....as he badly needed them. I have yet to create this (these) tools again.............and need to.

......Coil approach "Angle-of-Attack" was (then) visibly critical whilst sweeping coil over the cube(s). Just a 1-Deg change in coil approach angle over the 'complex-target' cube.... can make a day-or-night (go/no-go) delta/differential. A AWESOME tool that is VISIBLE to the human eye...........can be a TRUE eye-opener!

Tom]]> NASA-Tom Thomas Dankowski Open Forum Wed, 08 Sep 2010 17:21:05 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9044,9116#msg-9116 http://www.dankowskidetectors.com/discussions/read.php?2,9044,9116#msg-9116
Tom Z I read the discussion you posted and it's well worth a read. So many little details in this hobby, but the littlest of details can make the difference between successfully recovering the goods or not. All metal hunting is so different then disc hunting that it really takes a different mind set to master in trashy areas.

HH,
Brian]]> Cal_cobra Thomas Dankowski Open Forum Wed, 08 Sep 2010 17:17:04 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9115#msg-9115 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9115#msg-9115
Correct. And yes, a lower freq (silver resonant) unit would be better/well suited for deep silver coin hunting. Single freq units handle iron better....giving better ID.....less falsing. The newer single freq Fisher units are doing quite well in bad dirt,,,,,,,,, much better than previous generation units. In fact, under certain circumstances, I've witnessed the single freq F75 slightly trump the multi-freq CZ. ... Pulse is still the way to go; but ID capabilities with a PI needs to advance. Lower freq's penetrate the dirt better....and are more resonant to silver.........but will miss the deeper lower conductor targets. This is why higher freq's do better with lower conductor relics; yet, higher freq's are attenuated to a higher extent IRT penetration abilities.]]> NASA-Tom Thomas Dankowski Open Forum Wed, 08 Sep 2010 17:00:37 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9114#msg-9114 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9114#msg-9114
My Omega is doing a better job at smaller silver, if the O8 had a boost mode (or just more depth) it would be a killer machine for deep (8"+) silver turf hunting where 90% of the silver coinage is dimes.



Gary in Daytona Wrote:
-------------------------------------------------------
> I wouldn't ever just trust target ID. I dig it all
> and let my eyes sort it out!]]> Cal_cobra Thomas Dankowski Open Forum Wed, 08 Sep 2010 15:35:05 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9113#msg-9113 http://www.dankowskidetectors.com/discussions/read.php?2,9070,9113#msg-9113
Jackpine Wrote:
-------------------------------------------------------
> Brian what kind of depths are you referring to on
> dime size targets in your dirt?
>
> Thanks
> Tom Z]]> Cal_cobra Thomas Dankowski Open Forum Wed, 08 Sep 2010 15:27:33 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9112#msg-9112 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9112#msg-9112
Maybe could use a narrower cube like just 3 inches wide but 6-7 inches long then stand on end when done for testing? no need for the plexi glass just pour then pop out and it's good to go ...

A constant non variable..that will last lifetime....


here's a video showing the attributes of poly resin...

[www.youtube.com]


could make for some good winter project's??

Keith]]> Keith Southern Thomas Dankowski Open Forum Wed, 08 Sep 2010 14:36:46 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9111#msg-9111 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9111#msg-9111
Tom]]> Jackpine Thomas Dankowski Open Forum Wed, 08 Sep 2010 14:04:07 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9110#msg-9110 http://www.dankowskidetectors.com/discussions/read.php?2,9085,9110#msg-9110 So is that why those that hunt in two tone are not using the LTD the way it should be used or does different soils sometimes need different tones? Or iron VS trash different tones. I like two tones but use mono for the most part. Don't use four tone as much becasue the LTD can chatter so much that it is hard to hunt all day like that. It seems some of the new Fisher and Tech units coming out are a bit different but not a giant step forward like the LTD was. I know the money they spend is not what a car company or computer spends to bring a better product. This is a small hobby and I think a lot of baby boomers are the ones that spend the money on new product hoping to go deeper and unmask targets that are bing walked over. True you can almost never out hunt an area but with the way the world is changing it is harder to find new places to hunt.]]> Lawrenzo Thomas Dankowski Open Forum Wed, 08 Sep 2010 11:40:24 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9109#msg-9109 http://www.dankowskidetectors.com/discussions/read.php?2,9107,9109#msg-9109 Lawrenzo Thomas Dankowski Open Forum Wed, 08 Sep 2010 11:24:07 -0400 http://www.dankowskidetectors.com/discussions/read.php?2,9047,9108#msg-9108 http://www.dankowskidetectors.com/discussions/read.php?2,9047,9108#msg-9108 Sincerely Tri]]> Tri Thomas Dankowski Open Forum Wed, 08 Sep 2010 10:25:00 -0400