Using The 3 Bars On The Vortex Screen On Bi-Metallic Coins To ID Them

[John-Edmonton]

I found it's quite easy to ID Bi-metallic coins with the Garrett Vortex. The machine is running in zero discrimination, multi frequency. Although the numbers bounce back and forth, the same numbers do repeat themselves and show up as two cursers on the graph temporarily.

 

[Justbeinme]

you liking that unit pretty well?

 

[#1Leatherneck]

V o r t e x r o c k s To consider everything in the totality, i.e., price, company relations with the customers, the durability that Garrett is known for I believe the Vortex is undisputedly my number one consideration. The Vortex is most likely off of the V3i now that Garrett has acquired the White's line? The VDI is awesome. c/p White’s has chosen to normalize them all to a standard VDI scale. Therefore, a US nickel detected with a 6kHz detector will have the same VDI as with a 15kHz detector. For historical reasons, the standard VDI scale is based on a 6.592kHz detector. The standard VDI scale is shown below.
John-Edmonton Moderator thanks for the post.

Leatherneck
Semper fidelis

 

[John-Edmonton]

you liking that unit pretty well?

Yes I am. The learning curve is not only fairly easy, but not frustrating like some other units I have used. To me it's a "BINGO!"

 

[north1]

I found it's quite easy to ID Bi-metallic coins with the Garrett Vortex. The machine is running in zero discrimination, multi frequency. Although the numbers bounce back and forth, the same numbers do repeat themselves and show up as two cursers on the graph temporarily.

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Thank you for this bit of valuable info. Would think that this would apply to iron in close proximity to US coinage?(i.e. an iron nail next to a wheat cent). In my application I primarily hunt early 1900’s farmsteads that have iron trash and very little aluminum, foil and other non ferrous conductors. So picking up valuable targets in iron infested areas is essential.
Another question. After some use of the vortex and with your experience what area(s) do you think Garrett should address in their next update to the Vortex? What headphones are you using? There is some consternation on Garrett not offering headphones with the package. This is a non-issue with me due to the fact every detector I have purchased I have purchased killer bees as headphones. I have found that their tonal qualities fit my hearing the best. The ability to adjust volume of left/right ear separately is also useful(wind direction and hearing loss in right ear). Many proprietary headphones by detector manufacturers just don’t have those qualities I desire.