EVALUATION OF B AND D SUMMATION TRACES AT THE TONTO FOREST SEISMOLOGICAL OBSERVATORY.
Abstract
This is an interim report on a project to compare quality of signal reception on Summations B, B sub 1, and B sub 2 with quality of signal reception on Summations D, D sub 1 and D sub 2 respectively. Data from a recording period of two full months were analyzed. These results are summarized as follows: (a) Summations B and B sub 1 appear to be nearly identical in quality of signal reception to Summations D and D sub 1 at the gains used. (b) Summation D sub 2 has a more prominent high frequency background than Summation B sub 2. This reduces its reception quality very slightly on low level events. (c) The increase in high frequency background due to increased gains on Sums B sub 1 and D sub 1, and particularly on Sums B sub 2 and D sub 2 decreases the probability of 'ip' starts. This is to be expected from past analytic experience. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 1964
- Accession Number
- AD0609531
Entities
People
- R. W. Davis