TDI pro oz Advice and Setting's

PLEASE GUYS
let your pics and finds and Setting's with your Whites TDI PRO OZ machines find these pages!!! There are plenty of people who are ""struggling"" as there's not enough info around or easily found and as there are Plenty of people that have brought this machine weather it's because it was there first choice or they couldn't justify spending a ridiculous amount of money on their Hobby but still wanted a ""Quality Machine"" . And as I don't want the owners of these machines to feel intimated or to feel that they have a poor man's detector by other owners of another brand!! let's face it there will always be people that are going to say that there brand of machine is the best! Or your wasting your time and money if you buy another brand!!! It's like Ford and holden people they only seem to like the one they have! and put down any other brand and say there crap!!!
After speaking to a guy off a forum the other day he had said he feels he had mad a poor decision buy purchasing a Whites tdi pro oz after some guys had told him if it's not a minelab he was wasting his time then he tried finding some help on how to use and run it correctly and the best setting to use he struggled finding some experienced informative information and even not much on YouTube videos to help him out. There's heaps of info on minelabs Pi machine to get newbies started and set up on there detectors and get them in the hunt!!
So let's get some really useful info out there and help all TDI owners get some gold and help prove these machines are a Great Gold Detectors ..And what coils are working the best..
Thanks guys and girls for all your experience and helpful advice..
Cheers

Have a talk to the guys at Goldsearch Australia. I know they use the detectors they sell and I saw some gold that Dean got just the other day with a Whites. They`ll know the best settings for the Whites machines.
cheers

This vid makes the TDI look good for beach work.
https://www.youtube.com/watch?v=powWFLYN6Ss

All coils that work on the minelab gpx's will work on the tdi,However there are coils made specific for the tdi,Currently i am using razorback coils http://razorbackcoils.webs.com/australiandealer.htm
seems to work very well.there is also some very good mods starting to come out around making them run quiter and small gold capabilities.

Thanks everyone For your info and help and the MODS
Lewy I'd love to know more about them sounds very interesting!!.
Cheers thanks again

Hey Mate.

Without disrespect for this forum as I am just trying to help, try Prospecting Australia Forum under the Whites section also. There are a few guys who really know their whites machines.
Not sure if they come on here.
GD

Both the TDI-Pro and SPP have the ability to detect Gold, even sub gram pickers in highly mineralized ground.
As for using the detectors in a location where Gold can be found and to set the detectors up (including coil choice) for best result on that ground and condition is totally up to the used.
Some forums have the result with pictures from outings with both TDI-Pros and SPPs.
There have been some talk on modification on the TDI-Pro to make it quieter (less prone to EMI) so far this service have proved to be elusive and hard to obtain.

ivanll

Is the TDI Pro Oz good, very good excellent or superb as a beach machine. Let's say compared to the ATX or 2300

Hmmmm, So what does the silence mean?

I did notice that of all the metal detectors on Ebay the TDI OZ was the least represented, I found just one for sale. (It is mine now) with a few extras. It was not cheap but also not overpriced.
Does that mean that nobody owns a TDI OZ  Or maybe it is so good that people will not part with it?  

If a hard core Minelab PI operator discovered that the TDI OZ was good on gold in Australia  would they admit it to the world?

I had one but sold it some time ago. I don't think I spent enough time on it to learn it, but did find my first bit of gold with it. Never did try it on the beach, but they say it's pretty good?

I guess I will find out soon enough.
I have seen several vids and the machine seems to run nice and stable over iron minerals and salt and with good sensitivity to small items.

I find it to be very interesting that there are almost zero for sale on Whites Ebay sites while there are truck loads of other whites machines.

Anyway this is one detector that I always wanted and now that the price was right I have a chance to give one a try out.....While I can still walk.

There was a mod. that could be done to make the machine run more stable and better on small items. Maybe yours has been done Adrian, hope it goes well for you.

I have used quite a few Whites metal detectors and have not had any major probs with any of them. The TDI will be pretty good I reckon, judging by what others have written about it. I should have the TDI in approx 10 days.

I see now that the Whites TDI is available in a water proof case.
https://www.ebay.com/itm/Whites-TDI-BeachHunter-Extreme-Pulse-Induction-Waterproof-Metal-Detector-w-pouch/292766123753?hash=item442a3886e9:rk:10

You are right there is a waterproof TDI.

It's so quiet on a wet beach you have to lower your SS scope closer to the coil once in a while just to see if it's still on.

It's also very good at giving you a Nox. free zone.

It also have ground cancel adjustment which make it somewhat usable for gold prospecting.

ivanll

A Nox Free Zone. Hmmmm?

Both my Infinium with the 8 inch mono and the TDI with the 5 x 10 mono transmit very similar field strengths at 6 metres from the coils.
An interesting thing is that the TDI coil has a strong effect on a compass whereas the Infinium,s effect is negligible. ?

Well after many moons of zero metal detecting I finally got the TDI to the beach today, although not for long tho coz the battery went flat after two hours.  Like dead flat, am not sure if it will recharge.
The detector is very good at the beach over wet or dry sand in the zero GB mode and depth is fantastic in this mode. Stability is great. The GB mode is fine but looses a bit of depth to the non GB mode.GB had to be set to almost zero to gb the salt in gb mode. In Non GB mode A small 9k ball shaped charm was strong at approx 8 inches. Rectangular pull tabs were a pain in the butt at 12+ inches. as were long lost bobby pins. One thingy that resembles a cylindrical detonator was approx 18 inches down and gave a strong Low High tone.
The tide was low and targets were everywhere at the tide line.
So aside from the bloody  battery that went flat in 1.5 hours instead of 14 hours, it was a good day at the beach.

Have tried several different GPX range of coils on the TDI Pro Oz and the latest is a Coiltek Goldstalker 14 inch Mono.
This is a great coil for the TDI and has excellent sensitivity and depth capability that surpasses any of the Whites standard TDI coils.
   It is fantastic at the beach although I find it has poor pinpointing ability and performs more like a DD in that regard. Other than that, it's a must have.

adrian ss wrote:Have tried several different GPX range of coils on the TDI Pro Oz and the latest is a Coiltek Goldstalker 14 inch Mono.
This is a great coil for the TDI and has excellent sensitivity and depth capability that surpasses any of the Whites standard TDI coils.
   It is fantastic at the beach although I find it has poor pinpointing ability and performs more like a DD in that regard. Other than that, it's a must have.

G’day Adrian,

Next time you are out with the 14” Goldstalker coil try tilting the coil sideways and then use the edge of the coil to pinpoint, that is the way I use to when I was using my GPX5000. Hope this helps you with your pinpointing.

Cheers.

Mike.

For a mono the poor pinpointing surprised me a bit when compared to other mono's that I have in producing double and even triple signals to small targets. Raising the coil helps a bit and yes the edge of the coils works well. Thanks fer the tip

A trip to Batemans Bay today with the TDI and the 14 inch mono was interesting.
1. The Surf beach has been cleaned out by the locals and all I found were bottle tops, tent pegs and bobby pins.
2. the TDI was difficult to GB with the big mono. I did notice a lot of black sand which may have been churned up by recent rough seas and no amount of fiddling with the delay and GB could quieten the noise.
The non GB mode was unusable producing far too much ground noise.
3. There was some EMI and I had to run the Sens at approx 50%.
The coil is extremely sensitive and was achieving very good depth  even at 50%. I also discovered that with the GB at 6 or less the sensitivity to low grade gold 9kt to 14kt gold rings dropped of noticeably and best result was had at a setting of 8 or higher and with the timing in the salt range. 15 to 20. This resulted in some slight noise from the salt but targets were audible.
My previous trip to the beach using the standard whites coil achieved much more stable performance but less sensitivity.

here is something I have only just noticed about the TDI OZ:
With GB ON and in LOW Conductivity there is no response to gold rings and good response in Hi
With GB OFF and Conductivity in Low there is good response to gold and no response in HI.

Why does the response change?

adrian ss wrote:here is something I have only just noticed about the TDI OZ:
With GB ON and in LOW Conductivity there is no response to gold rings and good response in Hi
  With GB OFF and Conductivity in Low there is good response to gold and no response in HI.

Why does the response change?

"GEB ON" is required to activate High ~ All ~ Low target conductivity.

GEB is another word for Discrimination and is used for the same purpose.

If you are using a low 9ct gold rings and GEB at around 8 ,,, there will be no response in Low, , , try an 18ct ring.

With the GEB Off, all targets will have same audio pitch in All and Low but will mute in High.

With GEB on, find out where our 50¢ coin changes audio from High to Low by rotating the Coarse GEB knob, usually around 7~9.

There is usually a reverse signal, silent/mute/no-sound spot, when trying to find the change over point from High to Low audio with a 50¢ coin, depending on distance from coil.
I have 9ct rings that fall in the same conductivity range as a 50¢ coin.

The Fisher Impulse AQ do Not have this "dead" spot.

I used to set the GB of my vlfs to a find a metal / mineral point in order to check rocks individually for metal content, it did work sort of.
Am surprised to find a change over point on the TDI..The Infinium had a change over point near the one and two dollar conductivity that resulted in a warbly signal from those coins.

Am still checking the TDI. So far results are inconclusive on my machine.

My testing agrees with yours.

makes a man wonder how many nuggets have bee passed over due to having the TDI in the wrong conductivity and GB setting.