Thread: New detecting method?
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Old 02-24-2010, 08:10 PM
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mikebg mikebg is offline
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Default AL 707 and AL718
AL707 and AL718 are very primitive and imperfect compared to EM16 of Geonics, because they have no a second ferrite rod antenna for reference signal. The operating principle of EM16 is described in patent US3500175.
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