Nulling

[Skelly607]

Please define: Nulling.

 

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[TreasurdiggrNY]

Please define: Nulling.

That's what Minelabs do when iron is next to gold. The machine nulls (freaks out) and the threshold changes and it doesn't recover in time to catch the gold because it has a million frequencies. You have to tape a piece of iron to your foot so when it happens you wave the coil over the iron on your foot to reboot the machine so you can miss the next piece of gold.

 

[Frankn]

Nulling as used in metal detectors is the point during tuning at which the signal goes quiet. Technically you are tuning one frequency against another until they null out. This is also called ground balancing.

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[Iron Patch]

It's when your threshold goes silent from a discriminated target, usually iron.

 

[Treasure_Hunter]

It's when your threshold goes silent from a discriminated target, usually iron.

As far as Minelabs go IP nailed it....Minelabs null on iron, but will report on a gold ring on top of the iron......

 

[rockhound]

Whenyour threshold is set to be barerly audible, your machine will go silent over whatever you have discriminated out.You will hear an audible sound followed by nothing and then an audible sound. You have found something between the two audible sounds.You machine is telling you that you have found an object, but not what that object is. On preset machines without a threshold control, it will not make a sound either way, as there is no audible sound, only silent search. Good Luck. rockhound