IDX-PRO+VDI

[Koala]

Cdi i cant understand (less imune to IME)can u explain please ! coala say about T2 what do u mean of it is it another version or tresh 2

http://www.tekneticst2.com/index.html

Just has the edge but not by much.


Depth wise very little in it. Just hits those iffy signals more consistently.

[basellafe]

Cdi i cant understand (less imune to IME)can u explain please ! coala say about T2 what do u mean of it is it another version or tresh 2

[OCBSlimz]

Looks like a good project with a lot of replies, Can somebody point me to the most updated version of this project ? What post ? Kind regards.

[basellafe]

Ok let say gold about one kilo romanian gold under at less 1.5m and sbaut coil realy it will be more than kilo i know that but in test and swing not more than ten minete becuse its not aloude in my country to have detectors as u say about 30*36its posable to detect 1kilo metal but in how mutch in the air let say thanks frinds

[Koala]

10 DD

Large coins. 30-35 cm in really good ground like dry sand with zero discrimination.

Most ground with enough discrimination to eliminate most iron and its nearer 25 cm


if you tune the Rx capacitor you can get 50 cm in air but it will not work in the real world.


yes PIC is only for the display. Detector works fine without the display.


Just tried a T2 and there is not a lot of difference in performance. T2 is more reliable at the edge of the detection depth. It will sound every swing where as both the IDX and Bandido I have built occasionally don't beep when at there edge then swing again and they will. Apart from that they are very similar in performance.

[CDI]

If u mean 50 cm coil, well there is several negative things about:
Extreme big coil is less imune to EMI.
Hard to pinpoint, u will dig wel before find center of target.
Think about weight of coil, this size coil cannot be less than 1 kg, maybe more, plus other detector machine, battery, etc... you need to be Hulk to swing that machine more than 2 hours.
Your question about 1.8 m buried target... hmm, hard to tell, which size of target, target material. Also, depending of soil type in your area.
Never maked big coil like that, so i'm not sure what to expect, u must try yourself.
I can tell u about 30x36 cm for my xp gmaxx 2:
It's very deep for object's bigger than 5 cm in diameter.
Good luck if u decide to make monster coil.

[basellafe]

thanks CDI for yr replay yes i thik that but i want to be more sure about this effect ok there is another question can idx pro detect metal over 1.8 cm with this coil or should i replace it with big one and thanks again

[CDI]

and does it work with out a pic 16f690 or it shoud be

Pic only driving VDI unit, it will work perfect without him.

[basellafe]

and does it work with out a pic 16f690 or it shoud be

[basellafe]

aha that mean when i get small coil i will get more sensitivity for a small object and with a big coil i will lose sensitivity for a small object but detect a big one and more depth lets say double coil 50 cm it can detect an object in a 2 meter but it will be a big object is this right or Im wrong thanks Koala for reply

[Koala]

hi freinds can i ask aquestion about this pi IDX ORO ok how much depth can this pi detect and can i replace the coil with abig one to get more depth or its wrong idea and thanks for help

IDX Pro is a VLF detector


As the coil size increases there is a diminishing return for most size objects.


10" DD is about its sweet spot. Any larger and the depth increase is minimal on large objects and you start to loose sensitivity to smaller objects.

[basellafe]

hi freinds can i ask aquestion about this pi IDX ORO ok how much depth can this pi detect and can i replace the coil with abig one to get more depth or its wrong idea and thanks for help

[Boxen]

Thank you Koala for your answer
Today I'll begin my venture into the art of coil building.

Best regards
Dennis

[Koala]

Hello Ladies and Gentlemen

I'm about to begin the coil building process for my Idx Pro pcbs from Silverdog.
I've read all the threads regarding the Idx, but have a question anyway.
Is it possible to build a dd tx coil with 0.5 wire instead of 0.7 ? The resistive value will be higher on the 0.5 than with the 0.7.
Or do I just buy some 0.7 ?

Best regards
Dennis

Edit : had to put in that it was for the tx part of the coil

.5 mm is close enough for the TX as long as the Inductance is right it will be fine

[Boxen]

Hello Ladies and Gentlemen

I'm about to begin the coil building process for my Idx Pro pcbs from Silverdog.
I've read all the threads regarding the Idx, but have a question anyway.
Is it possible to build a dd tx coil with 0.5 wire instead of 0.7 ? The resistive value will be higher on the 0.5 than with the 0.7.
Or do I just buy some 0.7 ?

Best regards
Dennis

Edit : had to put in that it was for the tx part of the coil