Myers Depot Metal Detectors

PI test: Sand Shark, Dual Field, Headhunter Pulse and PI 1000 video comparison

What’s up guys, long time no see. I was kinda following "this" thread on another forum and what can I say, but it sucked me in lol.

First things first, is I love the idea of people testing a bunch of water machines using as close to the same test method as possible and videoing the results. Really if we could get a complete library of all the popular detectors with their different coils, using/detecting a similar test item (like say a nickel) all in the same thread it would be a great resource for everyone. Err maybe a sticky even?

I actually found a nice new yard stick at work yesterday, so if I can get myself motivated I will try and video some air tests of my Sand Shark using both my 8 inch and 10 1/2 inch coils. I'm kinda interested to see the difference between the 2 myself. While I'm at it I'll do my excall 2 too.

I would really love to see some other coil swappable machines like the garretts and the difference between the smaller and larger coils and say a stock excall and say a wot or s12. Really the more machines the merrier, and if we could all use as close to the same test setup as possible for consistency, it could really be awesome!

Happy Hunting guys.
 
Yeah, I'm going to do a video of testing the Infinium with 8" mono and 10x14 mono, just have to figure out how to get the sound, my camcorder (kodak playsport zx5) has a cheap built in microphone...

Make sure if you do the tests, you have the coil on the ground like in the videos above, so the machine is sensing the ground minerals while testing.

Is there a way to embed the videos on these forums? Instead of posting links?

Edit: I'll even show in my video how depth decreases drastically as I raise the pulse delay from 10uS to 25uS.
 
Crumble said:
Yeah, I'm going to do a video of testing the Infinium with 8" mono and 10x14 mono, just have to figure out how to get the sound, my camcorder (kodak playsport zx5) has a cheap built in microphone...

Make sure if you do the tests, you have the coil on the ground like in the videos above, so the machine is sensing the ground minerals while testing.

Is there a way to embed the videos on these forums? Instead of posting links?

Edit: I'll even show in my video how depth decreases drastically as I raise the pulse delay from 10uS to 25uS.
Click to expand...



Yes...
 
Crumble said:
Yeah, I'm going to do a video of testing the Infinium with 8" mono and 10x14 mono, just have to figure out how to get the sound, my camcorder (kodak playsport zx5) has a cheap built in microphone...

Make sure if you do the tests, you have the coil on the ground like in the videos above, so the machine is sensing the ground minerals while testing.

Is there a way to embed the videos on these forums? Instead of posting links?

Edit: I'll even show in my video how depth decreases drastically as I raise the pulse delay from 10uS to 25uS.
Click to expand...


I'd like to see that video too! I've never used the Infinium but hear it's a really good unit. Hopefully we'll see???
 
Nice effort on the videos. I must say though one thing I have heard repeatedly and seen in my personal experience is that AIR tests are not an indication of depth and are mostly useless except to learn tones on machines that have multiple or mixed tones. ALL machines fall far shorter on air tests than real life tests of in ground targets. When you include air space between a target and the coil you fail to introduce the ground and air tests are always short. Salt beaches are very conductive making the field stretch longer detecting target deeper. The Sand Shark test at 11 inches is a joke. Having said that, the SS is is NOT the best PI out there but they are well built and find good deep targets. I think the small coil limits them some what and the pulse is not optimal for gold conductivity.

This is a great video library of air tests but poor on real performance tests. Keep that in mind when you watch them. It is not realistic in the hunting world. Air is a poor conductor. The magnetic field of a VLF or pulse machine can ONLY be measured by undisturbed targets IN the ground. Eric Fosters name is thrown around a lot on old posts. This is 2012, not 1990. Time to think out of the Foster box. Just my 2 cents.
 
Last edited:
I think it was an outstanding post and hope it is made a sticky for all of those shopping for a PI detector to view. I wish there had been video like this when I bought my detectors. Very well done videos, thank you.
 
Terry Soloman said:
The Tesoro Sand Shark is just as good or better, than ANY other pulse induction unit costing $1,200.00 or less. You can't find anything with a DF, Headhunter, Infinium - whatever, that I can't find with my Sand Shark. If you want to pay twice as much for the optional hype - Go for it! :cool:
Click to expand...

Let's see your video showing us that what you say is true. Here you go bad mouthing someone because they took some effort to do a true test that many have enjoyed and watched through unbiased eyes.

It is a good thing that some people still enjoy learning or we could all be hunting with new detectors, because they are cheap, that get the same depth as an old 32 year old "classic" detector in the video.

I am now, like many others, looking forward to a similar videos with Garrett PI's and other detectors mentioned

When can we expect your comparison video Terry? Asking for pictures of finds doesn't prove a thing. Remember your post last week thinking many pictures post were fake? http://libertymetaldetecting.com/showthread.php?tid=728 now you are asking for them as proof?
 
imalookin2 said:
Nice effort on the videos. I must say though one thing I have heard repeatedly and seen in my personal experience is that AIR tests are not an indication of depth and are mostly useless except to learn tones on machines that have multiple or mixed tones. ALL machines fall far shorter on air tests than real life tests of in ground targets. When you include air space between a target and the coil you fail to introduce the ground and air tests are always short. Salt beaches are very conductive making the field stretch longer detecting target deeper. The Sand Shark test at 11 inches is a joke. Having said that, the SS is is NOT the best PI out there but they are well built and find good deep targets. I think the small coil limits them some what and the pulse is not optimal for gold conductivity.

This is a great video library of air tests but poor on real performance tests. Keep that in mind when you watch them. It is not realistic in the hunting world. Air is a poor conductor. The magnetic field of a VLF or pulse machine can ONLY be measured by undisturbed targets IN the ground. Eric Fosters name is thrown around a lot on old posts. This is 2012, not 1990. Time to think out of the Foster box. Just my 2 cents.
Click to expand...

PI technology hasn't changed much since Eric started so his knowledge is still very relevant today... you are swinging his coil on the DF ;).... when I want to know something I go right over to the PI tech section on Findmall :)
 
Lineweed said:
yea. its got some honey too. I like honey :yes:

okay well just gonna sit this one out. I'm actually interested in PI, even if its only in the far future. Pretty interested as to the how each detector compares to each other and the justification everyone gives in regards to the results. Not knocking on Terry or anyone else.

I like Findmall. Most threads there are really focused on the topic and they organise their sub-forums really well. This forum is pretty good too but its sometimes a hit and miss when you ask questions - more lurkers.
Click to expand...

This forum was started to help new guys and gals getting into the hobby and it has blossomed ;)
 
Imalookin,
I have to add to your comment that identical air test with different machines are still going to be a very good indication of what they can do under true hunting conditions.

Every detector that I have owned that had poor air test results, had poor field recovery results as well. The detectors that had good air test also
good field recovery results.

imalookin2 said:
Nice effort on the videos. I must say though one thing I have heard repeatedly and seen in my personal experience is that AIR tests are not an indication of depth and are mostly useless except to learn tones on machines that have multiple or mixed tones. ALL machines fall far shorter on air tests than real life tests of in ground targets. When you include air space between a target and the coil you fail to introduce the ground and air tests are always short. Salt beaches are very conductive making the field stretch longer detecting target deeper. The Sand Shark test at 11 inches is a joke. Having said that, the SS is is NOT the best PI out there but they are well built and find good deep targets. I think the small coil limits them some what and the pulse is not optimal for gold conductivity.

This is a great video library of air tests but poor on real performance tests. Keep that in mind when you watch them. It is not realistic in the hunting world. Air is a poor conductor. The magnetic field of a VLF or pulse machine can ONLY be measured by undisturbed targets IN the ground. Eric Fosters name is thrown around a lot on old posts. This is 2012, not 1990. Time to think out of the Foster box. Just my 2 cents.
Click to expand...
 
imalookin2 said:
Nice effort on the videos. I must say though one thing I have heard repeatedly and seen in my personal experience is that AIR tests are not an indication of depth and are mostly useless except to learn tones on machines that have multiple or mixed tones. ALL machines fall far shorter on air tests than real life tests of in ground targets. When you include air space between a target and the coil you fail to introduce the ground and air tests are always short. Salt beaches are very conductive making the field stretch longer detecting target deeper. The Sand Shark test at 11 inches is a joke. Having said that, the SS is is NOT the best PI out there but they are well built and find good deep targets. I think the small coil limits them some what and the pulse is not optimal for gold conductivity.

This is a great video library of air tests but poor on real performance tests. Keep that in mind when you watch them. It is not realistic in the hunting world. Air is a poor conductor. The magnetic field of a VLF or pulse machine can ONLY be measured by undisturbed targets IN the ground. Eric Fosters name is thrown around a lot on old posts. This is 2012, not 1990. Time to think out of the Foster box. Just my 2 cents.
Click to expand...

I agree that the PIs get more depth than their air tests show. The air space hinders the depth, and the ground conductivity of salty wet sand seems to increase depth. I think all PIs would gain around the same amount of depth on each target in wet sand, so the differences in depth between the PIs would still be there in the wet sand.

Eric Foster did design a lot of the best PIs on the market, he designed the Headhunter PI, and the coil for the Dual Field. Also, designed the Deepstar, the Goldquest SS, and the Goldscan 5, which are still considered some of the deepest/most sensitive PIs out there, although no longer made and hard to find. The Goldscan 5 was actually bought by Whites and turned into the TDI, the second deepest production PI available right now, after the GPX 5000...
 
Cfmct-PI said:
PI technology hasn't changed much since Eric started so his knowledge is still very relevant today... you are swinging his coil on the DF ;).... when I want to know something I go right over to the PI tech section on Findmall :)
Click to expand...

I was referring to air testing the Eric Foster way. Findmall has the best PI section I have ever seen. My water hunting season is just beginning so I will be over there reading again.
 
Well lets see if this turns out. This is the 1 st video of my shark with the 8 inch coil testing some gold.
Click to expand...
Your SS sounded quite different than Hobbit's SS, especially when you swung your target near your coil. Was the VCO mode the difference? Sounded like Hobbit was running VCO on.
 
Raphis said:
Your SS sounded quite different than Hobbit's SS, especially when you swung your target near your coil. Was the VCO mode the difference? Sounded like Hobbit was running VCO on.
Click to expand...

Yep I like to run in normal mode, I can set the one tone so i can hear it best and for me its easier to listen to the threshold with just the one sound.
 
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