ALEXANDRE TARTAR

4 minutes ago, Chase Goldman said:

I don’t see how these micro BT transceivers are even practical for use on Impulse given the special connector for the audio output.  The connector alone must weigh more than than twice the Trond module and that is not even accounting for the weight of the patch cable that you would have to custom fabricate yourself.  Besides the module can’t really can’t be exposed to moisture.  For something like this, it would have been preferable for the transmitter to be built into the detector (a la Equinox, Vanquish, Simplex, or Apex).

A bluetooth module is not that easy to integrate because the detector is so sensitive and stable, that a bluetooth module on the card brings additional noise quite easily. 

Sometimes you have to make the right choices increased sensitivity or wireless headphone.
I preferred keep the maximum sensitivity on this model.

Fortunately you are not going with your phone in the water! 

Some units available :

No regret Joe, it was not gold.

Gold does not cut, here we hear the cut, a good big ferrous or a coke can in depth.

The mute mode is not mistaken on gold, you can have a doubt only when the mute mode does not cut, (deep target) or when the mute mode rings intermittently.

You haven't had the chance to find a gold ring, but the photo corresponds exactly to what Le_Jag finds, so it's very encouraging!  

2 minutes ago, Chase Goldman said:

To be a game changer, breakout player at this point in the technical evolution of this hobby Cygnus needs to bring more to the table than just state of the art signal processing.  It needs to have a fundamentally different detection principle under the hood than either induction balance or pulse induction.  Simultaneous multifrequency (ML FBS+/Equinox Multi IQ/Garrett , multi channel ferrous cancellation PI (Impulse AQ), Zero Voltage Transmission (ML GPZ), and hybrid time/frequency domain processing (MDT) and the associated user interface improvements (visual and audible target ID and sophisticated junk discrimination) are all simply incremental and limited or niche, though welcome, improvements on a relatively crude and fully mature metal detection principle.  Cygnus needs to bring a fundamentally different detection principle to the table combined with state of the art tech, (e.g., a compact, rugged, affordable hybrid induction detection and signal processing/GPR imaging tool) to really make people sit up and take notice.  Otherwise, we are just ordering a different flavor of the same brand of ice cream.  I sincerely hope Doc is working on a completely different dessert than ice cream.

I now return this thread to the regularly scheduled program, Impulse AQ, already in progress.

I am agree with Chase Goldman.

The impulse series (gold and AQ) has already 4 versions developed and tested but which remains to be industrialized.

There are bipolar among these versions but there are also new technologies with new fundamental physics principles.

Le-Jag already tested one of these new versions 3 years ago.
Since then he claims the detector regularly ....

Many arguments given here will be in the IMPULSE GOLD features...

Pulse delay between 2.5µs and 5µs probably, with strong current inside coil, the pulse delay not yet confirm... 😉   

Response in 1 or 2 month, after the tests on field of the last version.

11 hours ago, Hamid said:

Very nice Joe👍 Congratulations 😎

Impulse AQ Limited, what is the maximum voltage (v) 20 or 24? Thank you.

The maximum voltage is 17V for the battery.
The internal voltage is regulated at 15V until the end of battery discharge.

In TONE MODE :

If this can help you a little, at certain times when the target was smaller or the search coil is higher you hear the treble variations. For the iron nail it makes a low tone and a double beep at the same time.

When the targets are at the limit of detection, they give you their true conductivity sound frequency.

As a general rule, the frequency variation occurs over the last 4 inches of the depth.
As same for ALL METAL mode, just upper the search coil a little to confirm by ear.

So you can have a low tone that does not have the same audio frequency depending on the ferrous, and you can have a high pitch that does not have the same audio frequency depending on the gold jewelry.

14 minutes ago, Badger-NH said:

Target ID is not the same as VDI (Visual Target Indicator).

Target ID is simply the detectors ability to identify a target.

I should have said Tone ID which is a form of target ID.

Tone ID is the ability to identify a target by a designated tone.

Le Jag's video implied the AQ as having Tone ID.

 

Yes, there is a multitude of audio frequencies. It's not just a low tone.

If your target is in saturation, you switch directly to the extremes (1500HZ or 50HZ), otherwise it makes a multitude of sound frequency according to your settings.

Yes but beware, the IMPULSE AQ is not made for the amateur, it is designed for an experienced prospector, and people who want to find more gold with a more advanced and more complex search mode.

It has never been said otherwise, if you want ease and display of conductivity you will need an equinox or a BBS or a DEUS or others.

But with 60% less sensitivity in the best of cases, on wet sand.
L'impulse AQ is not a coinshooter.

The philosophy is this:

Either you wait after the gold which is inaccessible because too deep comes back to the surface thanks to the sea, at the risk that someone detect before you with a more powerful detector.

Either you decide to spend more time learning, digging etc ... But you find before the others and after the others ...

All this is valid inside the sand and not in the air, nor placed on the sand.

Recognition is optimal when the target is at the limit of depth.

To get there, you just have to lift the serchcoil up to the audio signal loss limit for identify.

When you get used to it during research it goes very quickly.

WITH ANOTHER PI :

15 minutes ago, Steve Herschbach said:

Yup, the same audio tricks that work for all other PI detectors work for the Impulse, and with the same limitations.

Yes and no, because the faster a PI (Pulse Per Second) the more audio information there is if the detector does not integrate the signal too much.

With the Foster SSV3 at 10,000 PPS it was easier to recognize the pulltab than with any other PI.

You have to be above 4000 PPS to start to recognize the double loop of the Pulltab, and you need a very reactive detector with a weaker integration.

It's funny because we see it with the video editing software, we see the sound signals different from each other.

With a fast PI (weaker integration) /  > 4000 PPS in ALL METAL / AUDIO RESPONSE :

Here is a very short video, I don't have much time right now.
But I would make you more videos with all the targets in the wet sand and on the wet sand for see the differences.

I start with the hair pin in ALL METAL.

All ferrous targets are recognizable in ALL METAL mode

WOW ! I don't know how you do to swing with an ATS at 0, it's incredible, even Le.Jag doesn't do that!

Personally I would set the ATS to minimum 6 or even 8 to no longer have any variations underwater. 

Sure I would lose sensitivity but then I would try to decrease the delay and increase the sensitivity.

I would also try another strategy which consists in putting the volcanic mode under water, it is a mute mode in more ferocious! So there you can imagine to decrease the delay and maintain a low ATS and increase the sensitivity...

There are so many settings to try, it will take months! and you will have a lot of fun and surprises.

Basically I wanted to call it AQUAMANTA and not IMPULSE, but I had no choice.
There is as much commonalities between a potato and a ford raptor V8, as between a 1985 IMPULSE and an AQUAMANTA ... 

I wanted us to forget all notion of PI, because metal masking is very powerful on AQ.
It is so advanced that in the years to come masking will seem to be confused with the discrimination of a multi-frequency detector....

My goal is not to do as well as MINELAB, there is no interest for me.
My goal is to be more efficient, and much more efficient.

My goal is that they run with no expected results to try to catch me (on the performances). 😋

11 hours ago, kac said:

Would it make a difference if the nickel was actually buried rather than in an open piece of pvc?

Be careful with VLFs and Multifrequencies, they have a tendency to ring above the tube, it seems that the hole in the ground affects the phase shift.

With the IMPULSE AQ, I did not see any significant differences, I would say no more than + or - 0.5'' at 18''.

For the IMPULSE AQ the tests in the air are unfavorable compared to the tests in the wet sand. In general there is 2'' or 3'' more at 18''.

You can see here : 

Just now, Badger-NH said:

What does it mean "replaced in a few months"?

After this limited series there will be a worldwide series and the mechanics will be partially changed, the batteries are part of the change.

35 minutes ago, Luis said:

si par hasard, qu'en pensez-vous, vu les performances du détecteur, n'a pas terminé 100. Y aurait-il une possibilité d'expédition en dehors des États-Unis?

No it is impossible due to the certification of the battery. It would be necessary to invest 100,000 USD in the certification of this few units battery which will be finally replaced in a few months.

16 minutes ago, Badger-NH said:

That's different, how the cable passes over the center of the coil like that.  Is there a reason why they made it that way?

The main reason is related to technology, I can't really say more.
The secondary reason is related to water sweeping and electrical stability.

49 minutes ago, vive equinox said:

Although I do not know this white, this vdi so high surprised me ...

out of curiosity , do you know the scale of euros with this white? I guess we obviously don’t lose them with AQ

You have said in the past that the AQ does not discriminate red centimes euros, but what about when they are all corroded and swollen as it is in the sand?

 

The IMPULSE AQ is not a coinshooter, durind this years of development I never tested in detail the coins ....

If someone wants to detect coins he must detect with an equinox or ...

But they will lose 60% sensitivity on 2.5grs 18k gold ring if we compare to the IMPULSE AQ on wet sand.

SEE HERE :