has anyone tried this yet?LONG

[sandrailer]

when the C$ was on its way i went through the forum here and copy and pasted all the info i could find to notepad so i wouldn't have to go back through all the messages again if i need a bit of info.In one of the post i copied not sure who the author was but was wondering if anyone played with the settings for gold ring hunting here is what the post was......
" Find a likely spot and use these settings first.
0 Disc
0 Sens
+3 Threshold
Notch in Foil & Nickel
Notch out Tab and Zinc
Then Go back over the area with everything the same except, lower the Threshold to +2.
The theory is that the gold rings will hit harder because of the way the eddy currents travel in rings which will cause them to break the threshold saturation tone. Since the eddy currents are just surface currents in the odd shaped trash metal, they will not break the saturation threshold unless they are large pieces. Iron shouldn't break the saturation tone either unless its really large. My air tests show this to be a good setting for picking up small rings and losing the foil trash.
Dig everything that breaks the threshold tone. By that I mean if you can tell there is a target there by a tone change in the threshold tone, dig it. Keep track of what it is, how big and what shape it is.
If you get time, also try this setting:
0 Disc
0 Sens
+4 Threshold
Notch in Foil & Nickel & Tab
Notch out Zinc.
Zero(0) sensitivity setting will keep a truer signal response vs target size. That keeps all the metal in the ground closest to its true relationship with each other as regards to size and shape.
Once you start raising sensitivity you begin loosing that relationship because now you are magnifying the signal responses and you begin to see distortions and other affects you didn't see before. That is on top of now magnifying trash signals to the point where they easily overcome the threshold saturation tone.
You've experienced it before...worst case would be iron infected wet ground. High sensitivity basically magnifies the iron response so bad that it masks other targets around or below it.
Depth wise, even a 0 sensitivity setting will give you 6" plus.
It may be that sensitivity may need to be increased from 0 to a 1 or even a 2 or higher setting. Remember, its not depth you are trying to obtain, but a balance between a surface eddy current response (unwanted) and a conductive eddy current response (like rings generate) verses the threshold saturation tone.
I think the C$ can do what the other machines can't. I just need some time and help proving it"
Was this meant to be tried in all metal mode or disc mode?I would like to try this out at some local parks.

 

[Mike Hillis]

Hi sandrailer,

That was meant to be used in Disc mode.

If you spend a little time with this, you'll find that as you raise the threshold positive to a certain level, it starts to saturate the audio of some low conductive responses. The more positive it is raised, the more it will saturate. If you have a nickel and a thin gold ring and a peice of foil, you'll quickly see what I mean. Start at a +2 and try the targets, then try them again at +3, and again at +4.

Gets a bit noisy to hunt that way.

After more experience I now believe better success is to be had by focusing on the low conductors that give a good ID number lock on. Rings will lock as good as coins.

HH

Mike

 

[Jackpine Savage]

in the real world not all rings are oriented flat in the ground. When tilted or on edge the signal from rings or coins is much less. Rings can be easy targets or very tough targets for a detector depending on the orientation to the coil. Because the C$ transmits at full power all the time and the only control you have is the receive gain (sensitivity) and the threshold control your best option is to optimize those 2 controls for each site and what you are after. Pick a sensitivity setting that is stable for the site and then lower the threshold to some negative value to eliminate audio responses on the foil bits at that site would be be the way to go IMO. It shold not take much experimentation to do this. Mens bands which are the most often found gold rings can come in anywhere from nickel to high tab so don't ignore those signals.

Tom

 

[Mike Hillis]

Here are a couple of examples of the CS's good id locks.

In the picture, the ring on the left is a very thin 10k gold ring and on the right is a very thin .925 silver ring. The dime is for size.

I found the silver ring in the middle of a soccer field in a bunch of iron signals with the 10.5" coil back in January. Was running a 325 setting with the large coil so it would mimic a DD. It locked on at a 17 with an ocassional bounce every third or fourth sweep to a 18.

The little gold ring I found with the 8" coil. It locked on at a 8. I can't hear a response from this ring when the threshold is set to +3.

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