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limitations on Signature 1000 HR


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    Atle Lohrmann

    Hi Rachel, thank you for posting. 

    The HR mode is susceptible to something called "decorrelation" as currents increase. When this happens, the measurement process falls apart and the HR data will not give you any sensible information.  When does this happen?  Well, this is where we have a problem giving sound advice other than gently progressing toward the limit.  So my suggestion, as a first test, would be to run 10 cm cell over a range of 2 m and then simply see what happens.   Alternatively, you could ask some of the people who have already done this with the Sig1000 to chime in.  Alternatively, take a look at the papers that are out there and see what people say. 

    Best regards, Atle


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