Newb question for beach

[DuaneNY]

I have an old Whites Surfmaster II.
I just used it for the first time, and had alot of false hits working the sand. I turned up the discrimination, and the sensitivity dial to filter most of them out. I still has blips registering though whenever the coil accidentally touched the sand. I did find 6 coins and a hairpin in 3 hours, so I was happy with that I didn't 'over adjust' the unit.
For my own info, why does physical contact of the coil hitting the sand cause a tone though? Thanks in advance.

 

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[OBN]

Sensitivity to high possible, my excalibur does the same. I run it Hot, I bump into, or even a little nudge it gives me a signal. You may want to practice some coil control. Slower sweep and use the machine like it is a extension of your arm to hand.. not a swing but controlled movement. And try adjusting the sensitivity to low as possible then move it up as the hunt progresses and see if that helps. Good Luck

 

[stavr]

This is an entry-level VLF device, it is not stable on strong mineralization, or you have a problem with the board ...


(Deleted for rule violation)

 

[dewcon4414]

Could be the coil ...... but im incline to agree with Joe..... sensitivity to high. Working hard pan a good many machines will false..... coil flip and lots of minerals can do it.

 

[Hawks88]

I agree with sensitivity being to high. You didn’t mention if you ground balanced it on the wet sand. I’m not familiar with using a surfmaster II but if it has a gain control or threshold control try turning it down also. Welcome to tnet from Niagara Falls.

 

[OBN]

Check that coil cable also while detecting, move it around with your hand. I noticed today I had some excess noise, touched the cable and sound like I got a hit.. fixed it tonight I think..will see Saturday. Lose connection, I hope.

 

[1KBlueTuber]

If it’s the SurfMaster II amphibian and your in a salt water environment it’s gonna false like crazy.