S. Karki The zeroing of Applied Geomechanics Tiltmeter is completed at ENDX and should be up and running. It was so off-scale, using a bubble-level and voltmeter did the trick to bring it down to reasonable level and after that I used the DTT to level it more.
Jeff, Krishna, Robert here is the calibrated (against seismometer) amplitude spectral density.
That doesnt look quite right. Lets debug via email. -Robert