I went hunting this morning early. There was a heavy dew on the ground, after about 45 min my GB started acting strange.It sounded like i had something metal stuck to the coil. I pulled The coil cover off and drained the water out of it ,still was funky.Traded machines and let the GB dry out and it was fine this afternoon.I'm going to put some extra silicone around the cable where it goes into the coil,It looks sealed but maybe it's not as sealed as it looks. Has this happened to anyone else?I had a xlt that did this now and then.Appreciate any feed back. Thanks. Pat
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Moisture interference
- Thread starter Boydman
- Start date
sgoss66
Well-known member
Hey Pat --
I'm going to take a slightly educated WAG here, and say it may have been simply the water between the coil and the coil cover, and NOT water getting INSIDE the coil. I read somewhere that when stuff (sand, dirt, whatever) gets between your coil and coil cover, all that continuous exposure to electromagnetic radiation being transmitted and received can "magnetize" the stuff in there, and cause it to screw with the detector. Not sure how you would "magnetize" water
, but I suspect that the dampness in there (between the coil and coil cover) may have had something to do with it. If you left the coil cover off and let it dry out, I'd guess that that was the issue, as the coils are SUPPOSED to be waterproof, so you SHOULDN'T have had a problem with water inside the coil itself...
Steve
P.S. Maybe we'll get lucky and Dave J. will read this, and give the definitive answer...
I'm going to take a slightly educated WAG here, and say it may have been simply the water between the coil and the coil cover, and NOT water getting INSIDE the coil. I read somewhere that when stuff (sand, dirt, whatever) gets between your coil and coil cover, all that continuous exposure to electromagnetic radiation being transmitted and received can "magnetize" the stuff in there, and cause it to screw with the detector. Not sure how you would "magnetize" water
, but I suspect that the dampness in there (between the coil and coil cover) may have had something to do with it. If you left the coil cover off and let it dry out, I'd guess that that was the issue, as the coils are SUPPOSED to be waterproof, so you SHOULDN'T have had a problem with water inside the coil itself...Steve
P.S. Maybe we'll get lucky and Dave J. will read this, and give the definitive answer...
Big Boys Hobbies
Well-known member
I agree with Steve and his WAG.
I was using mine in shallow water and it went goofy, (like it was overloaded due to a large piece of metal near coil) changed batteries, no help. Was getting ready to send in a couple of days later & tried it one last time and its ok. Maybe it dried out. I do not use a coil cover.
JimGilmore
Active member
Forget the idea of what is between the cover and the coil being magnetized. The water is basically a lubricant,and every little bit of material in that water just swishes around like it is in a mini snow globe....That will effect the coils performance.
Just a random thought, all water save distilled is loaded with impurities of nearly infinite variety. I recall reading somewhere that virtually all sea water has trace amounts of gold among other things. Could the particles floating in the water become an issue? Jus' thinkin'.
Tom
Tom
Thanks for the input from everyone. Even after i pulled off the coil cover and dried of the coil with a sweat shirt I tried to hunt coil coverless and still was getting same reaction.One thing I didn't think about was I had a cell phone in my pocket.? May be the moist air and pulse off the cell phone? Thanks again.