ZINCLID
Full Member
Re: Know it's there but I know my machine can't "see" it- help!!
A PERSNICKETY PROBLEM YOU HAVE THERE! I was reading a book on the technology of metal detectors one time and a fellow (May have been Mr. Charles Garrett) said that whenever there are considerable amounts of ground mineralization--and it sounds like that's the problem with your situation, that the larger the coil, the more interference that keeps the coil from being efficient. That says to me that a 14" 0r 15" coil may just be the opposite of what you need when around that much ground minerals or salty conditions--maybe a 8" coil would be better? But if not the case, then a TF-900 made by Discovery of California has good depth...a friend of mine(Tenclaw) has one and it is super strong: gallon can down 5 0r 6 feet in normal ground. But you are not searching in normal ground I understand, so it may be useless there? GOOD LUCK FINDING THOSE CANS OF SILVER COINS!
A PERSNICKETY PROBLEM YOU HAVE THERE! I was reading a book on the technology of metal detectors one time and a fellow (May have been Mr. Charles Garrett) said that whenever there are considerable amounts of ground mineralization--and it sounds like that's the problem with your situation, that the larger the coil, the more interference that keeps the coil from being efficient. That says to me that a 14" 0r 15" coil may just be the opposite of what you need when around that much ground minerals or salty conditions--maybe a 8" coil would be better? But if not the case, then a TF-900 made by Discovery of California has good depth...a friend of mine(Tenclaw) has one and it is super strong: gallon can down 5 0r 6 feet in normal ground. But you are not searching in normal ground I understand, so it may be useless there? GOOD LUCK FINDING THOSE CANS OF SILVER COINS!