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New Detector design / New detector design
« Last post by skuchin on February 04, 2021, 05:40:39 am »
Wait for the New detector design or MOD my GPX5000 ?
General Discussion / Re: Detector mods Facebook group
« Last post by on August 11, 2020, 12:55:18 pm »
I've had Woody's mods on my 4500 for 8+years.Wish I could have gotten out more, but it was what it was. just retired; body is junk but going to try to get out more often. That being said, I have found abit of gold with my modded 4500. Could it all have been found with an unmodded 4500? Maybe. We have done some pretty clear tests that prove the modded detectors 3500,4500 and 5000 will pick up a .5 gram nugget at 16", whereas a stock won't in the same circumstances. Wish I would have had this detector 20 years ago.
New Detector design / Re: Any news?
« Last post by Rockwall on June 01, 2020, 01:03:24 pm »
I have sold the 7000 and now just using the modded 3000. Ready for your new one!😉
I have around 3 or 4 designs on the go, sometimes they take 6 months to design and test, always a little bit different. There is also the new detector in the pipeline as well.
I can't keep up. So these boards are an improvement on the upgrades I had done in December?
We are starting to run some new boards out that have a far greater performance on tiny gold and big deep gold using large coils. The new boards have a set of very fast low noise intermediate drivers added, inclusive of new components to give a different attack and decay phase shift that helps greatly with the ignoring of hot rocks.

This allows far more gain to be used while at the same time reducing the response to hot rocks and ground noises. The new settings allow the use of a large mono coil even in normal timings as to be adjustable to the point where it is far less sensitive to ground fluctuations and the dreaded hot rocks.

Now just because we put a turbo charger on the V8 it does not mean that you can wind everything full and go hoon around in the rain, you just end up doing wheel spins and getting nowhere fast.

The type of ground is the main thing that you have to deal with, red hot iron stone ground means to reduce the gain so that the input circuit of the detector is not overloaded by a huge ground signal, reducing the gain and the variable frequency control helps control the noise, 

In mild ground such as pipe clay and some river banks it is possible to run the gain nearly full on, this has not been possible before as the earth field creates too much of a weee wooo sound when moving the coil up and down a river bank.

As the biggest deepest gold is more likely to be found in normal timings the upgraded sub board allows the use of normal timings in most circumstances, even with a 24 inch coil. Tiny gold such as spurry reef or 0.005 gram bits are easily detected in Enhance mode with a small coil, running the variable frequency around 200 or more with the gain set as to allow perfect ground balance is outstanding. My own testing with a mono 10 x 5 coil on a 0.005 gram gold can actually cause an overload signal on the detector. This tiny gold was detected out to 8 cm.

The real testing should always be carried out on the ground that you intend to detect, bury a target such as a gold nugget or melted aluminium and try to get it so deep that you can just detect it, experiment with settings and coil sizes as to get the best depth without making the detector unstable and noisey.

After playing with the detector and if you get confused with the changes, its very simple to reset the detector by turning the detector off, holding the power switch down until it goes dee dee dah and turning the control to reset all, then turn the other control to do the reset. It is as basic as it sounds.

Look forward to that.
Well the Covid19 virus also known as the CHINESE virus or Wuhan Express, has really put a stop on doing any video or outdoor detecting as we are basically in a lock down situation. This has allowed me to carry out a lot of lab work trying out different arrangements to gain profiles and ground balancing. I have come up with some waveform phase mods that should allow a lot more depth on really big deep targets and reducing false ground noise targets. Only if i can get out to the test site and try it out in the real world. It works great on the work bench and reduces hot rock detection while allowing for a lot more gain.
New Detector design / Re: Any news?
« Last post by woody on March 08, 2020, 04:39:31 pm »
Not yet, there is a good chance a complete new platform will be made available, but then it can all bog down and fall over. 
New Detector design / Re: Any news?
« Last post by Rockwall on March 08, 2020, 04:11:31 pm »
Do I start selling my current detectors?🍻
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