AT PRO FAKE,SIGNALS

[LBSreve]

Hi Everyone
I bought a used AT PRO. When I started it up it worked fine. As the day went on I would get fake high tones every time the coil would hit a blade of grass during the swing. I sent it back to Garrett with my favorite Coil and they went through it and gave it a clean bill of health. When it came back it still did the same thing. I ended up selling it and buying a new one. Ha, it does,the same thing. I have four different coils and it does the same thing with all of my coils. If I run the sensitivity down three bars, it helps.
Anyone have any suggestions?

Thanks in advance!
Steve

 

[vlad]

I've found the concentric better in iron.
DD's have iron problems with many makes-the loop is asymmetric (vs concentrics) and this is one strong cause.
If you go to youtube and watch the early videos on "how to" Garrett put out they show some things
to better identify iron-but the iron falsing still comes through.

 

[John-Edmonton]

Make sure your coil wire is stable and not flopping over your coil.

Turn your sensitivity down.

Ground balance it.

Add some discrimination and/or notch out the points which are giving you the false signals.

 

[LBSreve]

Thanks for the replies.

 

[Apcomputing]

Make sure your coil wire is stable and not flopping over your coil.

Turn your sensitivity down.

Ground balance it.
Add some discrimination and/or notch out the points which are giving you the false signals.

I concur. I had same problem back in 1988. Back then we had to troubleshoot by expensive long distance, or US Mail.
I was stationed in St Thomas USVI, and still brag about the service I received from Kellyco. (I have bought every detector since from them.)

We finally got it worked out. It was the coil wire moving above the coil that was causing the false readings.