Montana Large Aperture Seismic Array
Quarterly technical rept. no. 2, 1 Mar-31 May 1972
PHILCO-FORD CORP BILLINGS MT COMMUNICATION SYSTEMS DIV
Pagination or Media Count:
The technical activity associated with the operation, maintenance, and improvement of the Montana Large Aperture Seismic Array LASA during the period 1 March - 31 May 1972 is related in this report. The short-period SP and long-period LP seismograph sensitivity performance statistics are indicated. Performance data on the SP seismometer and the SP and LP seismic amplifiers are presented. A new method of seismograph calibration using pseudo- random binary sequences PRBS and the development of a PDP-7 program to provide an LP PRBS input to the LP seismograph are described. Removal dates for the arrays microbarograph sensors are given. Statistics relating to the operation and maintenance of the array and data center equipment and land facilities support ar provided.
- Seismic Detection and Detectors