Testing The Johnson Haynie Detector

I have waited till after the Fisher Contractor meeting held last weekend to post this message.  The meeting itself had nothing to do with this posting beyond the fact that the C-8 boat had found a particular cannon during the first week of October and we wanted to report its position before I made any public remarks about it.  Actually, I have nothing in particular to say about the cannon, but I do have something interesting to say about a method of locating it.  You can see pictures of the cannon at:
www.pixlbndr.com/wrecker/Travis  where there is a simple directory listing of some JPG’s… nothing fancy, but available.

Now, you can get to this cannon if you have the fix, or, you can find it with a magnetometer, I’m sure, and I am confident that there are a number of salvors in recent years who were aware of its location (but Art McKee seemed to have missed it somehow!!!).  Cal Johnson and Bill Haynie showed me another way to find it, using this device they have.  I took them to the area: they located it.  But, that is the most recent location they have shown me.  I have been dragging them up and down the coast for more than a month, testing this “thing” they have to see how it works.  Its very odd, but, to a certain extent, pretty reliable.  In fact, it is much easier to use in a vehicle where you can cover some ground in any direction to triangulate your bearings… a boat is an ideal vehicle in this regard.  I have taken them to the shore and out to sea with the intent of testing targets that I know of, some of which are probably only known to myself and a few others.  So now, as a favor to Cal and Bill, I am dropping this dime on the Treasurenet Shipwreck forum.

Some months back I made a posting about a slew of waypoints that had fallen into my hands that noted locations where a shrimper had hung nets.  



Here is a screen snapshot of a portion of the ArcGIS map hosting those positions.  Bill and Cal picked up on this and gave me a buzz.  They wanted to show me their new type of “magnetometer” (Bill’s wording).  I’m only in this business to find things, so I don’t pass up an opportunity to check out a new technology, especially since it is only provided as a service, rather than an off-the-shelf expense.  That’s right, you can’t buy this thing, and you can’t rent it.  You have to hire Cal or Bill to run the service for you.  Bear in mind that I did not hire them… I just ran them all over the place to see this device operate.

To look at it, you’ll swear that it seems too simple.  Small box with battery inputs and a compass needle, and a common compass at that!  Carumba!  it’s a Boy Scout orienteering compass you can buy at Walmart!   Cal has built a number of models and Bill has one of his own.  I’ve seen both of them working, and both working in tandem with identical results.  Basically, you use it by sweeping it in an arc and the needle will dwell on a bearing.  You note your bearing, then move to another triangulation point.  Note your bearing from the second point, and a third, fourth, and so on.  This methodology requires that you have some way of plotting your bearings to see where they cross, and Bill has been using a mapping program on his laptop to do this, however, his map-ware uses charts of such a small scale that it can be difficult to determine, within dozens of feet the potential point of interest.  However, when these bearings are coupled with well-defined datum points (in other words, X and Y fixes to the typical thousandths of a minute of distance we are required to report for the Fisher contracts), they can be plotted more precisely.  I have been using my own software to do this, but, you could actually pull it off using Google Earth in many cases.

There are some caveats:

1.   you can not approach north to south
2.   larger man-made objects must only occupy a field dead-opposite of the sweeping arc, otherwise, the needle will dwell on them instead of other unidentified targets
3.   the needle will spin when you are in the immediate influence of the object located, therefore, when you cross over it, you will lose the dwell of the needle and must move off some distance to re-acquire the object’s influence
4.    there are no metrics for the device, in other words, you can not be certain what distance away from the object you are until you approach it, and, you have no way of knowing exactly what the object may be, nor if it is being affected by other surrounding objects
5.   object size is not necessarily a denominator in the function of an object’s attractive attributes (at least this is not currently known to Cal or Bill)
6.   object’s metallic composition can not be determined in advance… ferrous or non-ferrous is unknown

So, at this point, you ask “What’s the secret and where did these guys come up with it?”
You have to ask them: I won’t say how they came by the idea, and frankly, I’m not real sure, under the circumstances that they can really tell you much more.  They never agreed to fill me in on exact details, but, have made themselves completely available for testing and disclosure of as much info as they can comfortably provide.

My own evidence:

I have to tell you that I have had no previous contact with Cal or Bill, but we certainly have a great deal in common, both in working history and in residential history.  We also know many of the same people, have known many of the same people, and, therefore can come up with many common opinions based on similar experiences.  Age does have its own grace.  We also like the same beer.

At this point, I would like to hear from any of you out there who had dealings with Frank Brawley.  I knew him well enough and worked with him in the oil fields of Louisiana as well as in Brevard County’s near-shore waters.

Anyway, Bill and Cal have no serious experience with any of the 1715 wrecks, nor were they aware of any other interesting wreck locations south of Cape Canaveral (do not take this to mean that they have no interests elsewhere along the Florida East Coast).  The first test was a demonstration of the device locating a silver bar that Cal rescued from a 17th century wreck in a faraway land (don’t ask me, ask him).  Yep, damn thing would dwell on it from about 50 feet away, and I intentionally had him demonstrate this at a beach where Indian Harbour Beach and Satellite Beach share their common boundary.  There’s supposedly a wreck there that fetches cobs, so I hoped they might get a hit, but, when we arrived there, there was a dive boat near shore, divers in the water, and a set of buoys strung out.  I don’t know who they were… probably some DNR types from a college doing some sort of marine life survey, but I don’t know for sure.  



They also took me to Melbourne Beach where they tried to impress me with a fix and a bearing they thought lined up with a wreck symbol in their computer’s mapping software.  I assessed this particular chart and immediately determined that they really needed somebody to take them to some locations NOT published on common software mapping data sets.  I can certainly do that, but on this first introductory excursion, I only had a good cigar in my pocket and enough change to buy a round of draft beer.  It was pretty hot, and I had a lot of questions, so we retired to a shady nook and had a round.  End of first test.

Second test… I took them to a beach location where I suspect a wreckpile to lay.  Worked this one over from A1A as well as along the beach.  Bingo!  Pointed to the spot from several hundred feet away.  Also pointed to some other spots in the dunes, which we would have had to bulldoze to get to.  This is not much of a test as I am only taking them to a location where I SUSPECT something could be found.

Third test… I took Bill and Cal to Wabasso and walked them a good way up the beach toward the “Spring of Whitby” location.  This time I had my GPS with me and have many waypoints in the area, particularly two huge anchors lying about 1400 feet offshore along with some other mag’d targets that have yet to be excavated… very strong targets.



If you are familiar with this location you know that there are large houses along the beach fortified by very serious seawalls.  As far as I know they are sheet piles made of steel, so this would be a test of Caveat 2.  







Cal tried several models of the device and immediately dwelled upon the location of the anchors.  The anchors are about 100 feet apart and we were about 1400 feet away from them, so given the coarseness of the compass and the graphics of my GPS display at that distance, you have to be satisfied with the results.  We began walking south, and, once again, the device acquired a bearing on my mag targets. Very impressive!  They also found another hit, which we computed to be around 600 feet out.  As we approached the parking lot at the end of 510, the devices definitely picked up the San Martin.  



The attraction was irresistible.  End of test three.

Fourth test… Bill came by an original chart, vis a vis Frank Brawley, vis a vis, Bill Andrews, vis a vis Mel Fisher.  It is a pretty precise location of two mid-1800 to late 1800 vessels as they can be triangulated from the old Coast Guard Station in the area of Floridana Beach.  The place is a roadhouse now and recently the watch tower was taken down, but, for you old-timers, it is a landmark and can be found on any USGS chart dating from the 1949 editions of the charts of the Grant Quad, or maybe the Sebastian NW Quad (I don’t have them on screen at the moment).  Bill and I walked the baseline and had absolutely no trouble pinning down these two wrecks from shore.  Bear in mind that Bill had no real idea where he was, but I did.  These wrecks have already been worked over, and, once again they are about 1000 feet offshore.  This test is definitely one that would be repeatable and I have the computations and rectified charts available for examination.  End of test four.

Fortunately, the first week of October (2009) was a superb week for diving.  Flat seas, clear water in the Wabasso area and sunshine.  Water was warm from top to bottom.  Seems that every other contractor had put their toys away for the year and we were the only boat on station.  We worked a week and during that week found the cannon I mentioned early on.  The last day of the week, when we knew our dockage bill was about to run out, and the seas were going to pick up, we took Bill and Cal out on the C-8 boat to test their locator devices.  Leaving Sebastian Inlet and heading south past the Cabin Wreck, I had Travis run inshore of some mag hits recorded in the late 60’s.  The targets are not generally known to most salvors, and they have yet to be verified.  Cal’s needle homed in on them.  Amazing!  Next we swung by the Roberts.  Big attraction there, for some distance moving southward it stayed on focus for about 2500 feet or so.  



Next target were the big anchors at the Spring of Whitby.  Picked them up from about 100 yards, but had some error when in the immediate area.  



There must be a lot of stuff in that vicinity.  We could not get a good dwell and the water was murky so we could not see the anchors from the surface.  We moved on toward the San Martin.  Big attraction there and the needle stayed focused upon that spot until we approached the cannon in our designated work zone.  We passed shoreward of it and hove to.  Bingo!  Both Cal and Bill picked it up in tandem from a distance of about 50 feet.  Very strong attraction.  So then we moved out some distance and began a pattern when we got some hits and crossed over them to spin the needles… we took MOB fixes and dropped anchor about 100 feet inshore of the location.  Water was about 20 feet deep here and the vis was about 30 feet, so Travis and I swam it for a while and could find nothing except coral/limestone ridges between beds of sand.  End of test five.

So, there you have it so far.  Now, the question is “How does it work?”

Induced Polarity…. Not in the traditional sense.
Magneto Telluric…. Close but no cigar.
Magneto metric…. Certainly similar, but, this finds any kind of metal.
Ley lines…  That’s in the realm of fairy dust and I can’t draw a parallel on the subject.
Telepathy… I wore my aluminum “cone of silence” dunce cap the whole time (well what did you expect?)

I think, at the moment, that the thing works by sensing gravitational disturbances through the use of an induced polarity acting upon the compass needle which, in turn,  temporarily neutralizes the real magnetic attributes of the needle.  Part of this assumption is based upon the fact that it will not work while traveling along a polar line, and upon the ‘fact’ that it can apparently sense where large objects, like automobiles had PREVIOUSLY been located.  I would have to really test this last feature under serious control to make sense of it.  That’s about all I have to say about this at the moment.  You heard it here first.

Maybe this is what they are using.
http://www.magnetometer.org/mag-photo-cells.php

Also a compass mag
http://www.dcs.lancs.ac.uk/iono/aurorawatch/detectors/compass.html




A poor mans mag
http://image.gsfc.nasa.gov/poetry/workbook/magnet.html

Hey Fisheye:
I think you got pretty close with door number 2.  Thanks for the tip!  I'm going to look into that.  Seems to be pretty interesting, but I'm not a breadboard/resistor kind of guy unfortunately.  Choice 1 and 3 seem to be closer to magneto telluric theory.

Good morning:  Fascinating post mt friend.  How can I establish contact with them?

Don Jose de La Mancha

very interesting --home made mag of sorts

This is a simple magnetic anomaly detector with a compass pointing to the direction of the anomaly source. It can be affected by other local anomalies such as HV and areas with heavy trash. Since it's just sensing anomalous magnetic fields, it cannot tell ferrous from non ferrous (yes, they differ).
For this, something like RT Examiner, Electroscopes or any dowsing based gadget are efective as well and even beyond.

Ivan:
NOT a magnetometer really.  Graviometer more than likely.  I don't really care one way or the other so long as I can put it to work.  I've actually seen it pick up a single reale in a mowed lawn, so all I can think is that there is some disturbance in polarity of ambient gravitational fields.  Lots more investigation is called for prior to making any definitive declarations.

My next obvious test, if I could afford to do it, would be to go airborne, negate ground effect and see if it could locate nearby aircraft.  If not, then I would have to assume that ground effect is the key.

ain't science fun 

Hung:
Nice try... no cigar.  Put away the coat hanger wire and willow whips.  Repeatability is the key to success.

Last year Bill Haynie came to Tampa to demonstrate his machine to my treasure hunting group. We took him to Cedar Key to search for a specific target. I was really impressed with the performance of his machine. I was also very curious as to how it works. That night while Bill was asleep I took a peek inside. Inside is a giant cockroach with what looks like dowsing rods! It seems the rods are magnetized and the compass needle lines up with the rods. The flash picture I took startled the roach and he jumped out. I instinctively stepped on him. Sorry Bill. The next day Bill's machine didn't work and he went home. Here are the pics I took:

HI Salvor: Was that a male or female cockroach??  Very Important.

Don Jose de La Mancha

p.s. the first radios that I built were extremely simple things, yet they worked, in fact in WW-II I made them again to listen to the Armed forces radios.

An ant., a tuneable coil, a rectifier by using either a razor blade or generally a galena crystal, and earphones.  So mere simplicity doesn't actually negate an apparatus' ability to work.

How can you tell the sex of a cockroach?

SWR:
It depends upon how long a cockroach can hold his breath, I think....
I knew that dig would be coming from Pete.  That's his inside joke directed at Bill.  I'm not part of it.

I can't give you a serious answer because I have not tried it.  But, Cal seems to think that it would work.  I dunno.
So far, from what I have seen myself, I would rely on it generally, not specificaly.  Its the case where, before the invention of telescopes, men stare at the night sky and point to the stars, having no way to determine which were the largest or the closest.  "Scope" is exactly the right word and that is what this thing needs.  I have some ideas based upon the premise of metered distraction when a dwell event occurs.

Otherwise, I don't get the impression that depth is relevant (maybe it is) and I only think on a scale of practicality for the dive operations that I can personally support.

Hung:
Nice try... no cigar.  Put away the coat hanger wire and willow whips.  Repeatability is the key to success.

Signumops, the phenomena these kind of devices detect are the same one. Whether it's your friend's gadget or the dowsing type tools I have mentioned, it does not matter. They are different tools for the same task.
If you still seem surprised by your friend's device, it's probably because you do not comprehend how the phenomena manifests yet. If you did, you would know how trivial the anomaly around buried or sunken metals behaves in terms of magnetics and how people as Dell know about it for years as he told above.

Also as some posts above suggests, your initial post might not be that, but it hints and smells comercial.
Is this guy selling his machine or not?

Regards.

How can you tell the sex of a cockroach?

When you step on a cockroach,if the guts that come out are white,then its a male,if yellow or orange,its a female.

VERY interesting thread.  

As a contractor, I've been using dowsing wires for decades to find buried power/water lines.  Dowsed up an antique railroad track in Savannah by mistake once.  Technique was shown to me by an old electrician.

Hung:

"That’s right, you can’t buy this thing, and you can’t rent it.  You have to hire Cal or Bill to run the service for you."

You must know how to build one of these trivial little detectors.  How is it done ?  I'm sure there are many here who would really appreciate knowing the simple truth.   By the way, how much did you actually pay for that RT Examiner?

Sincerely

Hung:

"That’s right, you can’t buy this thing, and you can’t rent it.  You have to hire Cal or Bill to run the service for you."

You must know how to build one of these trivial little detectors.  How is it done ?  I'm sure there are many here who would really appreciate knowing the simple truth.   By the way, how much did you actually pay for that RT Examiner?

Sincerely

Ah, ok... I see now. It's a services promotion...Fair from a capitalist perspective.

Paying for this or that particular little box to use it or enhance the present technology or for somebody's services is really not that important as long  as you suceed, right?
Good luck.

Terry, thanks for posting this information. Very interesting indeed. Please keep us appraised of any further testing of this device. Wonder how it would do at Sandy Point?    Tom

Talking about testing Johnson Detectors....

I have one that detects certain non- ferrus objects of great value.
Is configured as a probing device.  It doesn't work quite as well at long
distances as the Johnson Haynie type. Because of its shape and telescoping
nature - it does work quite well in tight spots.

It doesn't have any batteries but relies on on electro-magnetic pulsing from
a humanoid source - working on a similar premise, as dowsing and other divining
type rods that rely upon human metaphysical input.  An adequate cardio-vascular system is
a must.  

It shares a similar name as the subject of this posting and stands straight up
when it is working - at its best - normally in the vicinity of a provocative good looking -
scantily clad younger woman or women.

Its too is called a "Johnson" in some circles, although many give theirs a
unique and more personable name suited to their particular application of its use.

Mine continues to work faithfully even today!    
I would post a photo or two of it but it would probably be either bleeped or cut.

There is also a gay version out there with another even more similar name:
Its called the " Johnson / Highney " Detector, but if you are ever around anyone using
it be sure not to bend over...

Terry,

You may want to add a disclaimer for the device that it should only be used inside the 3 mile limit due to the bermuda triangle being offshore.The compass on the device may start spinning wildly in circles,you could get lost and not know which way is land.The aliens could scoop you,your crew and your boat up,never to be seen again and to have all of us have to do a large search looking for your shipwreck and crew.Make sure your you have a large iron object on your boat so our REAL electronic mags can find you.

Good morning  fisheye; You posted -->

 'so our REAL electronic mags can find you'
~~~~~~~~~~~~

In your opinion, just what is a real electronic mag???.

Don Jose de La Mancha

DOM:  Be careful in a Johnson discussion with a guy whose screen name is Hung.............

U no, this setup worked better than I thought.  I really love a good rock fight!  Some of em have been going on here at the shipwreck forum for months.  I guarantee this one definitely will.  I can hear the fat lady gargling already. 

Here is a photo of a perfect halloween costume
for anyone with the screen name HUNG   

Dom you are HILARIOUS! This beats the cockroach-in-a-box detector!

Thanks but I still break into a belly laugh
every time I picture the roach in the little black box

Now there is a sense of humor!!!

This post is not intended for the regular members of this forum who so delight in having their fun at the expense of anyone that dares to present ideas foreign to them. I am only responding to this thread because of the seemingly large amount of interest shown by the visitors. I am indeed sorry that the posting has degraded into this unfunny humor put out by the “hung cockroaches, capt. dumbs”, etc.
This thread was posted without our knowledge or consent, and although Terry Armstrong did a great job in presenting HIS experience with this technology, I would not have used this forum  for the obvious reasons in evidence above.
Some of the posters here had an opportunity to do the same thing that Terry did. They chose not to, and that is fine. But why choose now to attack something that they know nothing about. This does not strike me as humorous in any way.
Those of you who came here to see if any real value will come out of these posts will be disappointed.  This will be the only time that we dignify these posts by a response.

Joe, Cal is returning to Arizona soon, and will contact you later. Give my best to Mike, Roy and Beth, as I am not sure they monitor this particular forum. That big wash near Fernley, Az looks better all the time.
Bill   

Illegitimi non carborundum est

I don't think anyone is laughing at, or attempting to discredit, your product.  It's a perfect example of experimentation at work.  You don't have to be an expensive, complex product to get the desired results. I've been following this thread because I'm fascinated by the simplicity of it.  So we see a little humor..oh well.

As Warren Oates said in Stripes.."Lighten up, Francis"

All kidding aside for just one moment.

I personally met both of the highly experienced treasure hunters who are developing
this detector.   They have probably forgotten more than most will ever actually know
about treasure hunting....

They have literally - "Been there" and "Done That" and are for real.  Now I mean this as a complement.   
My humor - as twisted as it was not directed at them
or their current methodology of proceeding in following their passions.

I am sorry if my joking around hurt their or anyone's feelings...

As for the "johnson" i was referring to (my own) ,... 
well it doesn't work quite as good as it use to
but like them I am still out there trying and my hat
really is off to the both of them.

There is an old saying,
"If you take the front of the line.... Expect to get some eggs thrown at you"
Again guys, I am sorry if I hurt anyone's feelings

You know, I went back and re-read my posts - considering
deleting them and three quick points came to mind:

O.K.  I was exaggerating!   In no way does my "johnson"
work like it use to...

1.   I guess I used it way too much when I was younger...

2.   There is not enough humor in the world..... and none of my posts were directed at
     the two gentlemen who are de-bugging a new detection technology

3.   I have way too much time on my hands - up here in the mountains
     to be on this website so much and probably should go gold
     panning up in Snowbird

     and a fourth.... I'm not going to sober up either

Terry put up a great post and I read it with interest. Not only was it informative but it also opens the door to some real possibilities.  I personally like Terry and though I don't know him as well as I would like, my guess is he's gotten a kick out of the humor that his post has brought out.
I would like to hear more on this subject on a serious note, however if someone has a humorous anecdote or turn I welcome the  laugh!
Thanks again Terry for the substantial input ....and Salvor6, shame on you for making me laugh until I spit out my Captain Morgan & Coke!!!
Aquanut 

k Gentlemen  can we get back to the device and it's results?  Bill?  I believe that I have a basic understanding on how it works now, congrats.

Peeps, remember the first successful Maggie was a simple piece of Stone.

Don Jose de La Mancha

OK… now I have to admit that I am not just patting Bill and Cal on the back.  Nope, I actually dropped a name hoping somebody would pick up on it and say something.  There’s more to the story and its all tied together over a whole lot of years.  By the way, Bill, Cal and I would expect to be lampooned for exposing the detector, but, I stand by my results, and would dare any of you to put up a dollar against me with the result set I furnished originally.  My skin is real thick.  I made the post without consent from Bill or Cal, but, I’ve seen enough to satisfy myself and its time to move forward.

Frank Brawley.  Frank lived in Cocoa Beach when I first met him back in the sixties.  He went to the Divers Training Academy in Fort Lauderdale, as did I (and Burt Webber, Cal Johnson and a whole bunch of other guys for that matter).  Frank and I worked for Packer Diving and Salvage in Morgan City Louisiana, and later on we worked together on the Laertes salvage job out of Canaveral.  Eventually, Frank played some part in putting me to work on the New Channel Historical Survey Group treasure lease at Klondike Beach (north side of Cape Kennedy).  New Channel was run by Bill and Florence Andrews  and Mel Fisher got shares in New Channel by trading services of Fay Field and his mag.  Fay found a lot of stuff for Mel.  Mel gave the info to Bill Andrews who, in turn shared some of it with Frank… who eventually shared some of it with Bill and Cal.  Frank died several years ago but I was not aware of it until Bill told me.  Bill and Florence Andrews died several years back as well.  They are survived by my buddy Randy Andrews, their son.  Now bear with me.

As a short aside to the big picture:  the Laertes was salvaged by the KarrWinAll company which was split between three partners… Craig Karr, Chuck Winston and Jimmy Allamong.  Winston and Allamong were oilfield guys from Texas, specifically working on pipelines.  Pipelines run underwater all over the Gulf and in the swamps of Louisiana as well as under the plains of Texas. Back in the 60’s, pipeline people sometimes resorted to dowsing to find the lines.  Chuck Winston dowsed with brass rods and found the Led wreck for KarrWinAll when LOP’s were not sufficient to do it.  KarrWinAll had no mags, sonars, metal detectors, ect.   Without getting into a hair pulling contest with other posters, let me just say that dowsing is a VERTICAL datum–centric locator while Bill and Cal have built a HOROZONTAL datum-centric locator.  I’ve seen both of them work, and I do have my own magnetometer which is ALSO a vertical datum location device, meaning, like any metal detector, you have to basically pass OVER the item you are looking for.  Well, obviously when you are limited to traveling on a flat plane (the sea surface) to perform a search, its far better to travel in the X and Y directions first, before having to define the Z plane.  The alternative is to run a grid pattern and eliminate the dead space.  Save fuel and time: save money.  Enough about dowsing and KarrWinAll.  I’ve lost touch with all those guys and many of them are already dead.  One guy who worked on that job was Tom Mounts.  Last I heard he was the Director of Diving Operations for the University of Miami.  He might still be around.

Now, some of you may have read Marx’s books and may recall a blurb about a diver helping to recover a bronze cannon from a shrimper net off the Cape Canaveral area.  That was Frank Brawley if you take his word for it.  Does anybody here know any different?  Frank gave some info to Bill and Cal years back which they used to locate a wreck.  The location is an exact same waypoint provided to me in that collection of net hangs I mentioned in my original post.  The point was separately discovered through the use of the Johnson Haynie locator (for want of a better word), before being recursed with a set of magnetometers.  Since Bill Andrews died, I have been permitted to see his charts.  The wreck is cited there at the same location as well.  I am fairly confident that Frank got his info from Bill Andrews.  I personally do not believe that he would have lost the location of any wreck that was throwing up bronze guns.  Maybe, but probably not.

In the meantime, I still have more than 1100 waypoints to check, and some alleged rockpiles dead east of Corrigans to locate.  If I can get Bill and Cal to help me, I am pretty sure you will be hearing more about this.

   A 5x5  post  Signumops

Don Jose de La Mancha

Interesting post.

A few months back Bill came to town and we tried his 'mag' aboard my vessel up the west coast of Florida. It did get some hits, but was a nasty rough day. So we made one dive and pulled the plug.

A couple of months later we made another trip to the other coast with Cal on my vessel. At the ramp I told Cal to turn around, as I had his silver bar, and was on a mission to hide it from him. I went out in the mangroves, and deposited the bar, and covered it with leaves.

Given the go ahead, Cal began using the "mag".  It quickly found a park bench that had metal legs....but....then he turned around, and walked directly to the silver bar I had hidden.  I was more than impressed. He approached the area from different angles, and still said 'right there'...each time.....when he was on top of it the third time, I said, yes, and uncovered the bar.

Bottom line is it works, but is tough when there are multiple hits around, as it points to anything metal.  Is a very interesting instrument.

Liverock

That silver bar is really neat huh!!!

Cal did a similar test right at the Jupiter Shipwreck site on the beach.

His detector pointed right to the silver bar and it also swung right to where
some of us beleive the main pile of the shipwreck actually lays under about
25 to 30 feet of sand and bolders.

PMA (a positive mental attitude) plays a large part in any detection process.
Whether we use an Aqua Pulse, A Fisher or a Johnson / Haynie Proto Type.
Its sometimes... almost...  like if you will it to be there or work hard enough and will
it to be there.... well.   It just may end up being there....  whatever you ARE LOOKING FOR...

My personal and above comment speaks not of any one particular technology over another
It just speaks of the positive attitude any explorer needs to maintain to make something
spectacular happen - like finding treasure.

Back in the old days of the 1715 fleet wrecks,you could blow a hole anywhere near the beach and find treasure.Now its all picked over and the fishers want everyone to look further out.

Now we're getting somewhere... yep, maybe a gaussian mag or, I think, a balanced galvometer.  There was a guy who's last name starts with an "S" (slavic or germanic I think) who basically wrote up plans for something like that back in 1924 for the International Electronic Engineering (not sure what IEEE stands for). 

Because the Johnson Haynie devices exhibit the ability to detect where large metal objects HAD been, I am certain it has something to do with disturbed gravity fields, therefore, it is, in that respect, a typical graviomter (EE types still call this a magnetometer regardless from what I can see in my own research, but bear in mind that I have trouble finding bad bulbs in a string of Christmas tree lights).  The thing also exhibits typical hysteresis qualities just like a pulsing mag, meaning that there is latency in the pointing ability:  once a lock occurs, it may be difficult to reacquire a new target of greater mass which is even closer as one moves the device in a particular direction.  This all seems to be dependant upon the approach bearing.  This means that finer control is required.  But, I don't know what is in it, and I am not going to find out.  That's their thing, not mine.  None the less, it is very refreshing to have an opportunity to apply a new technique, especially one that does not require you to break the bank when you go to the field. 

And yes Fisheye, the easy money is gone and if I were Taffy I would do what I could to see the rest of the lower 40 got properly plowed before the sun goes down.  Seems that many of us are already in the twilight.

So this device becomes unstable when close to or above a target.  Presumably because of the negation of a steadying, albeit neutralized, magnetic field (earth's), causing random targeting, rendering it useless. Also, it will not work when the target is NS, and that is because the earth's field is collaborating with the target, rather than if the target was at 90 degrees, where the torque on the needle is maximum.

This being so, my next question is:  Which came first? the phenomenon known as the Bermuda triangle?
Or the scattering and sinking of the 1715 fleet, in addition to who knows how many additional high-mass items? A causal relationship, perhaps?