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Don't you know when it's going to be released?

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million dollar question years in the making. Latest I heard was testing on lithium batteries for plane travel was being conducted. Since my daughter flies for a living I'm okay with seeing this done.

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No, nobody knows. It sounded pretty close but then there was a delay, apparently over waterproof integrity issues being resolved. Complete radio silence from First Texas so not even a hint. Maybe they are forgoing the pre-release tease advertising that has become so common, and it will just be announced someday as ready to ship and buy. That would be kind of refreshing actually.

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Leaky cases are always a critical failure in a waterproof design. I have no idea if the supposed case leak has anything to do with the slow pace of final pre-production development at Fisher - as Steve said, Fisher is “leaktight” (lol) on the subject of the Manta/Impulse!

Here’s some stuff on leak testing waterproof items from a major supplier of testing services and hardware.

Here’s some stuff from the biggest testing company in the area of leak detection of electronic devices. 

This shows the two-step test. A container with the device in it is pressurized to a given level. If that pressure decreases, i means the air has leaked into the device (the interior of the device is at ambient pressure to begin with - a pressure lower that the level the chamber is pressurized to. 

4-C67-C7-FE-6061-4-B3-B-ADE3-F7-A05-F87-D40-B.jpgpic upload 

1-FB989-FF-CD91-4-EA4-8-D2-F-CF574732351-A.jpgupload photo to internet for link 

[www.cincinnati-test.com]
 

 

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On the general topic of the Impulse/Manta not being ready for product launch, I think Olson Wells summed it up long ago

OK - I swear the AQ ain’t no cheap California wine, but the classic Olson Wells commercial for Paul Masson, is probably in line with the thinking of the “gnomes” in El Paso. When it’s ready, it will be ready. 

 




Hope the "Finish" is as expected.

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Rick,

What do you think the learning curve will be like on the Impulse? For most wetsand(with black sand influence for me) will it be set it and forget it? I'm trying to get me head around what exactly is going to be the way to go on most beach applications. I know it's early to speculate but you're better connected than most.

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How in the world would First Texas survive without you Rick! :smile:

F09EFF0D-ECDD-460B-BA9F-12E00807E793.gif

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Skate, The Impulse is on the whole slightly less “fussy” than the TDI (I have had two of those). The controls are similar, but there are differences. One big difference is that there is no huge depth penalty like is found in the TDI when the TDI is in GB on mode vs. GB off.

Below is a photo which was released after Fisher brought a proto to the Huge Outdoor Expo in Germany. Here is my best shot at explaining how it works. Please note that l have only used a prototype and that only for a few hours per day over three days.

Volume and Threshold are pretty self-explanatory. Likewise Sensitivity operates pretty much like on any other detector.

The two smaller knobs at the bottom are -

on the left, the on/off, Batt test, noise cancel, all metal and two discrim modes - mute and tone.

The right hand one sets the noise cancel position when in noise cancel and the pulse delay when operating in all metal or one of the two discrim positions.

The start up routine is turn on to noise cancel, then rotate the right hand bottom knob till you get the quietest audio - there is no stop, it’s just a rotary encoder.

Turn to all metal and set comfortable level of sensitivity, threshold and volume. The Sat Speed works much like the SAT or recovery speed setting on a VLF, longer signals with more depth perhaps or shorter ones to enhance the discrim function if you are using it.

The Iron Mask Knob increases the effect of discrimination in the Multitone or mute iron ID modes (selected with the lower left knob).

The Pulse Delay control is generally used at the minimum which conditions allow. Some circumstances may require a longer pulse delay to compensate for salinity, running salt water or other factors. The shorter the delay, the more sensitivity to ALL targets, not just to small ones.

The SAT and Pulse delay interact to some degree so adjusting the delay may make you want to tweak the SAT.

Unless ferrous junk is a serious problem, all metal is the quietest mode and the most straightforward to use. It also has the max depth (although the sensitivity difference between it and the ID positions has been steadily reduced as the successive prototype revisions were developed). 

LeJag, who has been the chief development tester, hunts in all metal and finds that he seldom needs to cross-check in discrim. - but he has been using PI’s for a decade and is an ace.

In my limited use of a prototype last October in San Diego, I found the all metal or the iron mute discrim mode to be the most comfortable for me.

None of the settings are super critical. The 

 

01684A79-6AB9-4E0C-8BA2-ACB8C58B9939.jpeg

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Very nice write up and much appreciated. My hope is that it will open up the wet sand hunting opportunities regardless of tide and sand conditions. Depth is depth and nothing beats a PI so my funds are going to be committed. Gas prices are too high to head to the beach for clad so it's gold or stay home for me.

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    • By Rick Kempf
      The latest developments of the AQ pre-production platform continue to increase the utility of the ferrous discrimination capability of the machine. Steady refinement of the design have made the machine not only deeper overall but greatly narrowed the gap between sensitivity in all metal and sensitivity in the iron ID modes of mute and multi-tone. 

      I suspect that if no iron/steel trash existed at the beach, no serious beach hunter would use anything except a Pulse Induction machine - unless they were in dry sand, and maybe not then. The reason I say this is that the depth advantages of existing PI machines is well demonstrated since they can operate on most beaches without the penalty of using ground balance. Also, except for iron/steel, no other level of discrimination is useful since gold jewelry can appear almost anywhere in the ID range above iron. So of the iron wasn’t there - PI’s would likely dominate. 

      In the case of Phase shift discrimination systems like VLF IB detectors use, the strong iron signal dominates the audio output, either silencing the audio entirely in the case of a single tone VLF, by nulling like an FBS/BBS - or by giving a lower tone in a multi-tone Detector. Even in the case of the multitone VLF’s, hearing the non-ferrous target depends on the recovery speed of the processing hardware in the detector. 

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      In mute, not only do you not hear the iron, but you hear instead silence - unless there is a non-ferrous target, in that case you hear the target with no hint of the iron at all. In this mode, the AQ software simply makes the ferrous targets disappear - just disappear. 

      In the case of multitone, you hear a high tone for non-ferrous low and medium conductors and a high tone for ferrous targets - close or even superimposed, makes n difference you would hear both tones in any case. 

      This has several major advantages. 

      First, there is “zero recovery speed” - All targets produce an output signal if they return one - the ferrous is - by operator choice - either silenced or assigned a low tone. The low/medium conductors always return their characteristic high tone. This occurs 100% of the time - there is no “switching delay” from target to target based on processor speed limitations happening. 

      Separation distance between adjacent ferrous and non ferrous targets is ZERO. 

      By zero, I mean exactly that, even non-ferrous directly beneath ferrous gives a clear non-ferrous high tone and the iron simply “isn’t there” (in mute - in multi-tone it gives a low tone which you would hear along with the non ferrous high tone). 

      This means that “silent masking” that Tom wrote about long ago, where even a tiny bit if ferrous like a common staple can mask a deeper and larger valuable target, is largely eliminated. 

      Now this isn’t magic, it’s just that the iron is above the ground balance point (or at it) and you are hearing the signals below the GB point and the ones at or above the GB point are silenced (or give a low tone). 

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      All this is clearly demonstrated in the video I have linked to before. The machine in the video is the Manta prototype from 3-5 years ago. The system has gone through a lot of development since then, including the very latest gains in overall depth and depth in the iron ID modes which I reported in the first sentence in this post. 

      Will the AQ “obsolete” any other detectors? Depends on what you mean by obsolete. The gas turbine aircraft engine (the jet) quickly replaced the extremely complex, high maintenance multi cylinder reciprocating aircraft engines for heavy, fast and high aircraft, but lots of light aircraft are still piston powered. The piston engine is still undergoing development for some aircraft applications. 

      So I expect that IF the AQ in the hands of the early buyers lives up to its claimed capabilities, that serious beach gold hunters will adopt it quickly. When a new tool in the hands of early adopters proves to be superior at doing a specific job to the previous best tools for the job in question, those who are really serious about performance for economic or other reasons will adopt the new tool and stop using the old one. How many framing carpenters still use a hammer. Not many if the compressor/nail gun noise at any construction site is any guide. The framing hammer is not obsolete - it still works just fine - but for serious users the nail gun became “compelling”. 

      Time will tell how “compelling” the AQ will become for serious beach jewelry hunters.
       
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