3 frequency silver

[grnd pounder]

My question is about deep silver, not the program but silver say beyond 6 inches. I get a lot of good vdi numbers but when I pin point
if the 2.5, green freq, isn't the dominant one I pass them by. Do you find that say the 22.5 could be dominant and still be silver? How about 7.5,
all of these have been bottle caps so far, but am I passing up go targets.

 

[BHNugget]

Most of the deeper silver Ive found in three freq best data has been either dominant 2.5 or 2.5 and 7.5 have been close to equal.I dug one barber dime that was dominant in 22.5 and am guessing it was because it was deep and on edge.

 

[Neil in West Jersey]

Silver is often going to show up with 2.5 KHz as the dominant frequency, but not always. Coins such as dimes, quarters and big silver will almost always show up with 2.5 as dominant, but I would not rely on it 100% beyond 6 inches. The 1/2 reale I dug a few weeks back was 9.5 inches deep. It was a virtual tie between 7.5 and 2.5.

Small jewelry such as sterling charms will almost always show with 7.5 as the dominant frequency.

Personally, I prioritize how to determine whether or not to dig in the following order:

1)Sound: How good is the tone? Is it repeatable? Does it pinpoint easily? (Bad targets are more difficult to pinpoint than coins)

2)VDI: How consistent is the VDI number? Is it repeatable?

3)Analysis Screen

For me the dominant frequency is only a factor on fairly shallow targets.

The deeper the target is, the more likely I am to dig a questionable target.

 

[magic]

You have got some very good advice here. It also depends on the coil you are using. I have noticed with the SEF coils, silver dimes come in with the 22.5 (blue) frequency at just about any depth over 6 inches. My friend pulled a merc at 10 inches and the blue (22.5) was dominate. I even checked it with my machine and it was the same. If you take a coin and place it on the ground and pinpoint on it just almost out of range, you will see the bars are off...the closer you get to the coin the better the bars come in with accuracy.

 

[grnd pounder]

Thank you to all who took the time to reply, your knowledge and experience sure saves a lot of trial and error
for us with less. So far I have mostly worked with the d2 coil and the coin and jewelry program. Magic, I did
load your program yesterday and will be giving it a try soon.

 

[TheMarshall]

Magic and other readers..Hi there!

Regarding this post on frequency responses and silver.

The fact that a coin is silver does not mean that it's dominant curve is necessarily the 2.5 kHz one.

There are several interactive factors involved as to what your 3 frequencies analysis will be on a target.

The depth and Fe mineralisation in the enclosing soil, and the thickness of the metal involved.

Do this 'in-air' test to see the facts.

Take two o silver coins...Dollar as the thickest, and then the THINNEST silver coin you have, hopefully less than a millimeter in thickness.

Now check their resulting curves in three frequencies mode.

 

[TheMarshall]

Silver is often going to show up with 2.5 KHz as the dominant frequency, but not always. Coins such as dimes, quarters and big silver will almost always show up with 2.5 as dominant, but I would not rely on it 100% beyond 6 inches. The 1/2 reale I dug a few weeks back was 9.5 inches deep. It was a virtual tie between 7.5 and 2.5.

Small jewelry such as sterling charms will almost always show with 7.5 as the dominant frequency.

Personally, I prioritize how to determine whether or not to dig in the following order:

1)Sound: How good is the tone? Is it repeatable? Does it pinpoint easily? (Bad targets are more difficult to pinpoint than coins)

2)VDI: How consistent is the VDI number? Is it repeatable?

3)Analysis Screen

For me the dominant frequency is only a factor on fairly shallow targets.

The deeper the target is, the more likely I am to dig a questionable target.[/quote]


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