F75 is being worked on

I put a silver dime at 7" and a dime on top of the ground , the one on top hi 71 , but the one 7" hi 88. All so did it on a silver half did the same, top 86 , at 7" 95. So I called fisher and they said that that is to much difference in the numbers. I am using the small coil and the GB was at 61. I hope they do a good job. Have any of you see this with you f75??? Thinks.

Hmmmmm.... I see this all the time. It is usually not a problem with the detector. The F-75/T-2 have a tendency to "up-average" non-ferrous targets when near disintegrated iron or bad minerals. VERY common occurence. It is partial 'silent masking' coupled with conductive target response. I have several documented experiences exactly relating to this. Just no time to publish it (yet).

Tom