Hi, I've just set up one of the group buys (Hs-10-1) geophones. All seems
to be working well. But I was wondering, what is the range  on the period
adjustment
screw?  It appears to have some unlabeled scale. Any help on the range and the
best
way to set the device to 1 Hz ?

I hope to achieve some better response to distance quakes with this Z axis
device.
The channel designation :

..au1   East-West high frequency
..au2   Geospace HS-10-1  Z axis  (This replaced E-W low frequency)
..au3   N-S  high frequency
..au4   N-S  Low frequency

Regards

Arie



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