** Description of SEIS_150510 **

Seismic data took at Y-end
1st line: freqeuncy
2nd line: NS w/o Amp w/o calibration.
3nd line: WE w/o Amp w/o calibration.
4nd line: Z  w/o Amp w/o calibration.
5nd line: NS w/ Amp w/o calibration.
6nd line: WE w/ Amp w/o calibration.
7nd line: Z  w/ Amp w/o calibration.
The unit is count.
The trillium calibration constant(C) is 750 V/(m/sec)
Also, it has a pre-amp with the gain of 33 (Camp).

Calibration Eq:
(Disp) = (low data)*40/(2^16)/750/(2ƒÎf)/33.
                    count->V   C   v->m  Camp