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Discrimination Mode "Sensitivity" and "Depth" in Single-Frequency VLF Metal Detectors

ByDetector Stuff

*Used with permission of Fisher Labs* Some metal detectors are “more sensitive” than others, and “how deep” a particular metal detector can detect a specific metal object depends on many variables. “Air test sensitivity” refers to the maximum repeatable detection…

Fisher Dave Johnson Teknetics

Information on the new Teknetics Omega- Engineer Dave Johnson

ByDetector Stuff

*Reprinted by permission of First Texas* Posted originally on American Relic Hunters Official Teknetics Forum Hello! and, Omega Posted By: dave johnsonDate: Friday, 13 February 2009, at 1:10 p.m. Hello, this is my first forum post on this website. Some…

Fisher Reviews

Fisher F4 Review

ByDetector Stuff

I’ve always heard “The older you get, the faster time passes.” Now that I’m in my mid 40’s I’ve found that statement to be all too true. However, there are exceptions to this rule…. Christmas, payday and waiting for a…

Fisher Reviews

Fisher F70 Review

ByDetector Stuff

“The Heat!” To put it bluntly, the Fisher F70 is THE HEAT! As a proud and happy owner of an F75, I caught myself thinking…”I bet the F70 will be a scaled down F75”. In some ways, I was right….

Dave Johnson Fisher Teknetics

First Texas Products to launch T2ltd and F75ltd!

ByDetector Stuff

First Texas Products is launching 2 hot new versions of their flagships…the T2 ltd and the F75 ltd…limited edition versions with additional modes… Cache and Boost! Read the rest of the story for the full flyer…

Fisher Dave Johnson How to Teknetics

Electrical Interference Essay by First Texas Lead Engineer Dave Johnson

ByDetector Stuff

Electrical Interference First Texas Products & Fisher Labs August 2009 Because of the high sensitivity of modern metal detectors coupled with the proliferation of sources of electromagnetic interference, you are likely to encounter electrical interference at times during the use…

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