First One In The Wild - Fisher Impulse AQ

[Rick K - First Member]

Happily, the connectors are stock industrial items - not proprietary.

[cuniagau]

Rick,

In a past post you mentioned coils, as in a primary  and an optional coil.  Do you know yet about the optional coil(s) size?  I am assuming that the primary is a 12 inch.  Fisher does seem to love a 5 inch hockey puck as we have seen for past 30 years on various models.  They wouldn't go that small would they?  

Asking for a friend,

Joe

[Rick K - First Member]

Sorry, I have no solid info on the coils except that there seem to be more than one, perhaps several. One of Alexandre’s key skills is building high performance PI coils - he has done this for a number of “legacy” PI detectors.

Only problem is that. Hand built coil on an engineers test bench can’t always easily be transformed into a high performance, low failure rate mass produced coil in a factory.

[GaryC/Oregon Coast]

So, what I am reading is, that this is strictly a Gold Hunting Machine!  Silver items (or any other coin makeup) will be missed on the beach at any level.  A machine dedicated for finding gold items only.  I'm only asking about the beach dedicated one that is presently being produced.  GaryC/Oregon Coast

[Rick K - First Member]

The discrimination function of the AQ works by comparing two samples of the return signal at different points in time from the cut off of the pulse. Targets which are present in the first sample but gone in the second are (in the iron ID modes only) marked as “high conductors”. MInd you, there is more than the type of metal, but also its mass, shape etc. involved. It is quite different from target ID in a VLF system based on phase shift of the returned signal.

Now if you haven’t dozed off reading all of that...the short answer is that silver coins in the iron ID mode would likely be ID’s along with iron.

But there is an all metal mode and silver hits just fine there (along with nails, bolts, etc.)

The skill of using this detector will be in adapting its modes to the targets and ground environment you are detecting in.

[PPP]

Hi Rick!

Thanks for all that info..Looking forward for the unboxing video.Just wonder where are you going to put the video for us to watch?

Can you give us some words about the balance of the machine, because it has the s-shape shaft which is not so good as everybody knows compare to straight shaft. I have some beaches where i live that has a lot of big iron pieces scattered all over in the water and i know it masks some gold rings definitely. I have tried the Equinox to work between irons to find gold but failed. I don't even dare to go near these areas with my PI machines. The question is if the AQ can pull out gold rings amongst these big iron chunks i have here?? Thanks

[Rick K - First Member]

We will have to differ on our opinions about s shafts vs straight ones. I found the balance excellent on the prototypes I handled.

As far as your iron “chunks”. Detecting gold beneath iron depends on several factors includingthe size of the gold, it’s purity, the distance between them and the mass of the iron.

The video will probably go on my Vimeo site and them a link will be provided to view it.

[Tom Slick]

I for one prefer an "S" shaft over a straight shaft on most detectors. 

[GaryC/Oregon Coast]

Thanks for the All Metal explanation for silver coins Rick.  GaryC/Oregon Coast