Hi, Just a small question, does anyone know what are the
frequency ranges
when referring to Broardband or Long period seismographs. My
guess is
the BH* channels are  1 hz - to 20 hz ?????

BHZ, BHE, BHN   - Broardband
LHZ, LHE, LHZ    - Long Period

By the way is there any other designations?

Thanks  Arie


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