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what is the "sensitivity" & "discrimination"

eaglei

New member
I am new at this and I wonder when is the best time to use the sensitivity & discrimination buttons. One guy had said just leave them alone, so I ask myself then why put them there? Especially the "sensitivity button" Any tips?
 
Not sure what machine you own, but here goes:

The SENSitivity button/knob controls how strongly your detector picks up the returned signals bounced off metal objects in the ground...this controls how deep your detector will hunt (to a point)....Adjusting this too high is the cause of most false signals encountered by new hunters...only turn it as high as you can without the detector chattering when no target is present...
The DISCrimination button/knob does exactly what its name implies....i discriminates out certain metals you may not want to dig, such as iron, nickels, pull tabs, and screw caps, also zinc pennies...Remember that GOLD reads in the same range as iron/foil, pull tabs, screw caps, and in some cases, zinc....I have had large class rings ring in as copper/1c, so turning this up can help and also hinder your finds, depending on where and what you are hunting for...The higher you turn this, the more your missing...read your instruction manual to fully understand these...


HH,

GoGoGopher
 
I'll try another approach on discrimination, I don't think he really answered your question on what it is.

Discrimination is the detectors ability so separate some targets by conductivity you can reject low conductivity targets like small gold/pull tabs and the detector will not give you a signal on that conductivity... Let's go on an example:

You reject pull tabs so if your coil passes over a pull tab these will not register (make a signal) and therefor you don't have to bother do dig those pesky pull tabs.

But on the other hand if you don't dig pull tabs you will miss many gold rings...
So there is a trade off, it's your choice. You can also if you please begin with high discrimination (meaning only high conductive targets will register) and then go lower and lower until you only reject iron... To clean out a place so to say.
 
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