Tip on EXll and Falsing

[ED-NH]

Hi all,

A while back I was looking for an answer to what I may be doing wrong with my WOT when I'm hunting in rocky areas like the beach or even on dry land in the woods near granite stones. I was getting a high falsing signal. I tried some suggestions to no avail. This weekend I was hunting the beach way out in low tide and in nothing but rocks. I was using my 10" coil and guess what I was getting the same falsing that the WOT gave me.

After thinking about it and all my settings I thought that this may have something to do with ground balance. So, I found a spot where I would get the falsing simply by moving my coil 3" to the right or left. I kept the right - left movement going and I did a 'noise cancel' operation. After it was finished so was the falsing for the rest of the day.

I'm thinking that whenever I ground balance my coil is sitting flat in one spot (most likely a spot not near a hot rock) and as soon as I start hunting over the rocks I get this falsing. I think that in some cases when you start to get falsing try doing another 'noise cancel' operation while moving your coil over the area that will make it false signal. This worked like a champ for me. I am excited to try this test with the WOT and see if I get the same results.

It took me three times out in the field to figure this out. I knew that it could not be my EXll's fault so I am happy that it works. Maybe this will help someone else out there save some time and aggravation.

Ed-

 

[digitrich]

I have been playing with the idea of trying sort of the same thing in iron infested areas. Instead of noise canceling in a spot that doesn't contain any metal, I specifically find an in ground iron signal, I then lift my coil 12 inches above it and hit noise cancel, in farmers fields with corn stalks, I have noticed bumping the coil into a stalk while over iron causes a high false normally but when noise canceling as I described, over the iron, it seemed to lessen that a great deal. I wonder if it effects your depth in a negative way though?

 

[ED-NH]

I'll take a hit on depth so long as the falsing goes away. With falsing I am missing lots of shallow targets.

 

[dewcon4414]

Ed, i dont find im missing shallow targets when falsing simply because the coil reduces sensitivity which looses depth, but wont affect sensitivity to targets closer to the surface. Im new to this detector, but here's what ive noticed: according to what ive read the SE has 28 freq that VERY between the 1.5 to 100 kHz based on the OPERATING channel selected. The operating channel spoken of is based on the NOISE CANCELs selection from 11 channels. This is different from say the sov which have 17 freq that are SET at 1.5 kHz intervals. I prefer to noise cancel at the same depth that i detect. I just cant see how the correct channel and those 28 freq selected can be correct otherwise. The selected channel determines if the dectector is selecting more freq close to 1.5 or the 100 kHz. The more selected closer to 1.5 kHz means it handles minerals and salt best... the more selected toward the 100 kHz affects how it handles EMI. Ed this may be why you have some success ground balancing out those undesirable noises.

 

[ED-NH]

Thank you for your thoughts on the falsing. It's great how we find different ways to make things work. Your explanation of the channels and which frequency they run may be just what is working for me when I noise cancel over the particular areas that I have issues with. It is great to make sense of how these 'mysterious' things happen. I still have not gotten out to try the big 15" wot in an area where I know it falses. I am really hoping that running noise cancel as I described will work for that coil in the spot that was giving me some issues. Thanks again for your reply.

Ed-