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Old 02-17-2013, 01:13 PM
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Qiaozhi Qiaozhi is offline
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You can also experience the sky effect with a standard Heathkit GD348 and a Micronta 4001. Both of these detectors use unshielded coils.

By the way, TOTeM is designed to eliminate the sky or compass effects, while still using an unshielded coil.
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