How do I know if I have bad coupling?

It is not always evident.  There are two common things to look for which may be indicators.

There is a very low frequency shift in the waveform. The vertical vibration is much greater than the horizontal vibration or the reverse.

Bear in mind that these indicators could occur for a natural reason.  The best way to avoid coupling issues is to follow the recommendations in the ISEE User Guidelines at www.isee.org.

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