pulse ar III tests

[Berti]

Hello,

After some days I'll take an Pulse AR III to test it in ground.

Everyone can give me any advice for successive tests.

Regards

[mosha]

Hello,

After some days I'll take an Pulse AR III to test it in ground.

Everyone can give me any advice for successive tests.

Regards

hello berti,

a freind of me just buy Pulse AR III, we tested it but gave us bad results, soda can only 30cm air test.

I don't know what is the problem, is it faulty device or somthing else.

please feed us back about your tests.

kind regards,

Mosha.

[Geo]

hello berti,

a freind of me just buy Pulse AR III, we tested it but gave us bad results, soda can only 30cm air test.

I don't know what is the problem, is it faulty device or somthing else.

please feed us back about your tests.

kind regards,

Mosha.

With who coil ???

[Max]

hello berti,

a freind of me just buy Pulse AR III, we tested it but gave us bad results, soda can only 30cm air test.

I don't know what is the problem, is it faulty device or somthing else.

please feed us back about your tests.

kind regards,

Mosha.

From I've heard (rumors mostly) even Delta pulse beat it hands down.

Have you tested with larger coil ? Which size ?

It has a number of coils... but depending on target size you may need use the appropriate one for maximum detection depth.

Cause, if cannot detect a soda can at least at 70cm you can really drop it in the garbage, no dubt.

Hey but it's a chinese thing ???

I was thought it was from TB , it isn't...

Thy played the old game of name cloning...

If so... it's normal it's c.r.a.p.

Kind regards,
Max

[ivconic]

From I've heard (rumors mostly) even Delta pulse beat it hands down.

Have you tested with larger coil ? Which size ?

It has a number of coils... but depending on target size you may need use the appropriate one for maximum detection depth.

Cause, if cannot detect a soda can at least at 70cm you can really drop it in the garbage, no dubt.

Hey but it's a chinese thing ???

I was thought it was from TB , it isn't...

Thy played the old game of name cloning...

If so... it's normal it's c.r.a.p.

Kind regards,
Max

"Even"...!!!??
Delta Pulse is hell of detector! Hard to beat.
It is only problem to make it right and properly. Main issue is to make and adapt very correct coil for it. Once you achieve to make right coil for it, DP turns to extra deep and extra sensitive PI.
Many people made DP and also made so so coil. It works. DP will work with almost any coil....but average. So, there, most of people also never meet real DP performances.
Regards!

[mosha]

coils

We used 45cm and 1m coils, both same results.

regards,

Mosha

[Max]

We used 45cm and 1m coils, both same results.

regards,

Mosha

Hi,
if so, it's as suspected : bad chinese piece of junk... hope you paid not much for it then.

Not useful at all.

Kind regards,
Max

[Max]

"Even"...!!!??
Delta Pulse is hell of detector! Hard to beat.
It is only problem to make it right and properly. Main issue is to make and adapt very correct coil for it. Once you achieve to make right coil for it, DP turns to extra deep and extra sensitive PI.
Many people made DP and also made so so coil. It works. DP will work with almost any coil....but average. So, there, most of people also never meet real DP performances.
Regards!

Hi,
well , yes, of course, if tuned properly, though I don't like it running at just 100Hz... unless for deep and big stuff... too slow otherwise.

I find XR-71 setup (about same schematic) works better than it... running at 400Hz and also more.

I wrote "even" cause anyone here can make Delta pulse for very small budget... very cheap thing, though really powerful and , unexpected, fairly better than many commercial and priced depth PIs.

PS: but even an unmodded GSIV beats XR71 and Delta hands down, no dubt. Old design, but better than those.

Kind regards,
Max

[ivconic]

Hi,
well , yes, of course, if tuned properly, though I don't like it running at just 100Hz... unless for deep and big stuff... too slow otherwise.

I find XR-71 setup (about same schematic) works better than it... running at 400Hz and also more.

I wrote "even" cause anyone here can make Delta pulse for very small budget... very cheap thing, though really powerful and , unexpected, fairly better than many commercial and priced depth PIs.

PS: but even an unmodded GSIV beats XR71 and Delta hands down, no dubt. Old design, but better than those.

Kind regards,
Max

Yes DP is more "pert" at 400-500Hz, that's for sure. GSIV.... still obscurity for me. I didnt dare to make it, according to schematic and pcb posted in public. Later heard rumors those are faked a bit....
I would like to try to make it, only if i get accurate and proper documentation....
I guess you are right in many points.
Regards!

[Geo]

We used 45cm and 1m coils, both same results.

regards,

Mosha

With 1x1m coil, only 30cm for the soda can?????

[Geo]

Hi. For me DP or XR71 have some problem at small coils. My XR71 (360hz about) with 25cm coil detect the soda can at 60 cm.I tried other dumping resistor with other coils but no better results. With 50x50 coil it detect the soda can at 80cm. With 1x1 at 1.20 m. Also it is very sensitive to moisture and to ceramics. I tried coils from 250uH to 1000uH but nothing special.
So Ivica, what coil are you use with your DP??

Regards

[Max]

Yes DP is more "pert" at 400-500Hz, that's for sure. GSIV.... still obscurity for me. I didnt dare to make it, according to schematic and pcb posted in public. Later heard rumors those are faked a bit....
I would like to try to make it, only if i get accurate and proper documentation....
I guess you are right in many points.
Regards!

Hi,
don't know about public pcb, but schematic is ok.

It had some mistakes, but were solved and some were also easy to spot (e.g. a missing ground point and the like).

Design is still actractive if wanna play with PIs, problem is that it's a PI!

So can be useful just in "some" particular cases... I mean, good for beach, good for depth search, good for e.g. pipe location etc etc

But not good for coinshooting general purpose inland... not good for gold nuggets unless in very "clean" environment (Alaska maybe ? ), not good if bricks and pottery around, not good about consumption and weight (cause of batteries), not that small etc etc

All good reasons to leave it alone, unless truly motivated in making another, good PI.

Delta is more than enough for many purposes, XR-71 is same stuff, also some other schematics (more simple than GSIV) are truly good for beach hunting, and not so complicate.

I think another interesting one is Superscan, Geo described it, seems really cool and powerful.

Kind regards,
Max

[Max]

Hi. For me DP or XR71 have some problem at small coils. My XR71 (360hz about) with 25cm coil detect the soda can at 60 cm.I tried other dumping resistor with other coils but no better results. With 50x50 coil it detect the soda can at 80cm. With 1x1 at 1.20 m. Also it is very sensitive to moisture and to ceramics. I tried coils from 250uH to 1000uH but nothing special.
So Ivica, what coil are you use with your DP??

Regards

Hi,
strange. XR-71 I have detect a coke can at 70-75cm on air, with 24cm coil, around 400uH inductance. Have you checked mosfet operations ? E.g. flyback amplitude ? Does it warm up ?

If too warm is not good...

Of course, you're rigth about ceramics... wow... it detects too and very well!

That's why I don't like PIs. Too many false signals...

Kind regards,
Max

[Geo]

Hi,
strange. XR-71 I have detect a coke can at 70-75cm on air, with 24cm coil, around 400uH inductance. Have you checked mosfet operations ? E.g. flyback amplitude ? Does it warm up ?

If too warm is not good...

Of course, you're rigth about ceramics... wow... it detects too and very well!

That's why I don't like PIs. Too many false signals...

Kind regards,
Max

Hi Max.
Mosfet works cold. Waveforms are OK. I tried different dumper resistors for any coil but....
Do you remember what dumper did you used????
Regards

[ivconic]

Hi. For me DP or XR71 have some problem at small coils. My XR71 (360hz about) with 25cm coil detect the soda can at 60 cm.I tried other dumping resistor with other coils but no better results. With 50x50 coil it detect the soda can at 80cm. With 1x1 at 1.20 m. Also it is very sensitive to moisture and to ceramics. I tried coils from 250uH to 1000uH but nothing special.
So Ivica, what coil are you use with your DP??

Regards

Mostly 66 to 70 cm diammeter circle coils. Usually i adjust number of windings to give arround 1mH. Ok...i am not that neat, sometimes it is 1.1mH and sometimes it gives 0.92/0.95 mH. Wire gauge...from 0.75 to 1mm, depends which one i manage to find at that moment. Just recently i made 1x1m coil on one customer demand. Wire was 0.95mm. And yes, i gained a bit better results than with 70cm coil.
Resistor is usuall 2K2. Although i tried also with 1K8. Not noticeable differences. Frequency from 90 to 150Hz.
It is pretty stabille on mineralised soils, i dont have complains (comparing to PS II which is more unstabille, for sure).

I could adjust DP to work on 500Hz, but am a bit tired of it. Made over 25 devices so far. So i would like to try something new. I am very serously reconsidering GSIV. Also i have one very nice made HH pcb. Yet empty, no components on it. So...i will see.