GPL 8 VERSUS SUPER STRING 8

[Bill Smith]

Hello ~

Doris of Kellyco has made this recommendation:

http://www.kellycodetectors.com/gpl/ground.htm

Detection depths:

GPL 100 -- 50 feet
GPL 200 -- 100 feet
GPL 8 -- 200 feet

She then referred me to JW of Kellyco who said this:

Bill,

Either the eXp 4000 with the super sensor option, or the eXp 5000 with the super sensor would be your best choice.http://www.kellycodetectors.com/okm/okmmain.htm Click on the link to see the two devices.

Regards,
JW

And, in the meantime, this has been recommended to me:

Super Sting 8 resistivity equipment from Advanced Geoscience inc. www.agiusa.com

There may be a possibility that I can rent the Super String 8 here in the Philippines. If this does not turn out to be the case, do you think that the GPL 8 may be suitable to fit our needs here?

Thanks & Best Regards ~

Bill

[modaljar]

I used the Fitsgirald's MLL100 which uses the same principle of GPL series if not the same product with different name.
This product gives false reading on rocks and wet areas. Also digging the four
rods in and out several times makes it so difficult for testing several places a day.

[Bill Smith]

Hello modaljar ~ I got the impression from Kellyco that the GPL 8 is NOT like Fitzgerald's dowsing rod instruments. I know very little about this stuff so please correct me if I am wrong. Thanks ~ Bill

[modaljar]

MLL is not a dowsing instrument it works on the same principle of GPL and similar machines.
pls check this link
http://www.treasurenow.com/html/MLL.html

[Bill Smith]

Yes, I see how similar they are......so I don't think I would be interested in either. What would you consider if you were in my shoes? Thanks ~ Bill

[Bill Smith]

BTW, this is the situation: We are in a vertical down shaft about 85 feet below the surface, and we are picking up a detection with a Fisher Gemini 3 between us and 3 foot diameter steel pipe that was sunk hundreds of feet deep vertically in adobe, and possibly some limestone or calcium karst, about 25-30 feet from where we are. We were told that the Gemini could detect through this much material, but if this is the case, we should be able to detect the steel pipe anywhere from the surface to below where we are. (We know that this shaft was sunk hundreds of feet) The assumption is, that since the Gemini can't detect the steel pipe anywhere else, that we must be detecting something between it and us, and we are looking for something that can discriminate between ferrous and non-ferrous materials to try to determine what this before tunneling to it. The concern is that it may be a bomb. What equipment do you suggest that will work in these conditions in the Philippines?

I was ready to fly to Oregon to get a demo from Bob Fitzgerald on his PDF 1000 until I got this note below.....

Hi Bill, This is a "dowsing rod" They have been around for 1000 years. You can do the same with a coat hanger if you can "dowse" It makes me sick to see people get bilked into buying these things , which now go under the phony classification of "long range locators" for lots of $$$. Some even have batteries which serve no function.. Just a good way to make a lot of money from unsuspecting buyers. There should be a law against such things. Nothing
new....best regards, .............

Any thoughts are greatly appreciated.

Thanks & Best Regards ~

Bill

[modaljar]

I suggest using different methods to make the job well done:
1.pulse induction: you can use Lorenz deep max x3 or pulse star2 pro
2.Magnetometer : I suggest the G-859 http://www.geometrics.com/magnetomet..._/859/859.html
3.GPR : In my opinion sir3000 with 3207 antenna is the best. http://www.geophysical.com/antennas.htm
I think these links also deserve a look :

http://www.kts-electronic.com/cont/e...preisliste.htm
http://www.mp-detections.com/Siteang...ls/sirius.php4
http://www.schonstedt.com/index.cfm?page=GA-92XT

[Carl-NC]

The Kellyco GPLs are exactly like Fitzgerald's "Mother Load (sic) Locator". They are all what I call a "poor-man's" resistivity meter. They are grossly overpriced (you can build one for $100 or so), are based on 1960's technology, and perform poorly. And without data logging or analysis software, they are difficult and tedious to use.

The SuperSting and MiniSting are examples of what a modern resistivity meter should be. Someone also makes an induction (probeless) resistivity meter.

- Carl

[UWLocator]

BTW, this is the situation: We are in a vertical down shaft about 85 feet below the surface, and we are picking up a detection with a Fisher Gemini 3 between us and 3 foot diameter steel pipe that was sunk hundreds of feet deep vertically in adobe, and possibly some limestone or calcium karst, about 25-30 feet from where we are. We were told that the Gemini could detect through this much material, but if this is the case, we should be able to detect the steel pipe anywhere from the surface to below where we are. (We know that this shaft was sunk hundreds of feet) The assumption is, that since the Gemini can't detect the steel pipe anywhere else, that we must be detecting something between it and us, and we are looking for something that can discriminate between ferrous and non-ferrous materials to try to determine what this before tunneling to it. The concern is that it may be a bomb. What equipment do you suggest that will work in these conditions in the Philippines?

I would be very careful with anything that injects a high voltage into the ground if you think it may be explosive. If you use a resistivity meter, be well away from the object when you apply the voltage. Some explosives become very unstable with age.

Rip