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Omega..5" DD coil...and nasty bottlecaps tutorial

TerraDigger

New member
Decided to do a little bench testing. Used a clad dime and a flattened/slightly rusted Bud Light bottlecap. These, like Corona beer caps are notorious for ID'ing as dimes/quarters. This technique uses the heel edge (not the toe edge) to identify the pesky buggers. IMHO the toe edge of the First Texas DD coils do not go as deep as the heel edge. Target distance from coil was approx 7". Bottlecaps can be deep. Here is what I observed.
When the heel edge is even with or up to 1" past the bottlecap the numbers will drop to 70's-60's-50's and sometimes the teen's (do not always get the teen readings though). But the tip off is is that in doing multiple edge sweeps (remember you may have to go up to 1" past the bottlecap to get this effect) is that the ID number 99 will appear. Sometimes only one time. But it appears.
The dime will also have large fluctuating readings like bcaps with the edge technique, but there are two things it won't do. It doesn't go into the teen numbers and the 99 ID number never occurs. Practice this at home, see if your results are what I am getting. Remember, this is with the 5" DD coil. Too tired tonight to test the 11" DD.

I put the targets on a box about 8" off the floor to replicate field sweeping techniques. Trying to do this by holding targets in hand and waving targets in front of coil doesn't work as well. Also, set sensitivity low enough so that the machine is not registering ID numbers randomly. You can hold the detector waist level in the air, and if ID numbers are being generated on the screen, you need to lower the sensitivity until it stops doing that. This will give you accurate test results.
 
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