Signal select in underground line location
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United States of America Patent
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Oct 18, 2016
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N/A
app pub date -
Apr 30, 2013
filing date -
Apr 30, 2012
priority date (Note) -
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Abstract
A transmitter and receiver for performing a signal select algorithm are provided. A transmitter for providing a signal on a line to be located includes at least one direct digital synthesizer, the direct digital synthesizer producing two component frequencies in response to an input square wave signal; and a feedback loop providing the input square wave.
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