A NEW CALIBRATION CONCEPT FOR INSTRUMENTATION TAPE RECORDERS

Abstract

A new calibration concept for instrumentation tape recorders which insures consistent data quality is presented. This technique utilizes a single composite signal for complete amplitude and phase equalization of direct reproduce data electronics. In addition, the method permits equalization for tapes recorded with analog or saturation record electronics, and also permits calibration at different reproduce tape speeds from a single recorded preamble. The composite signal description and block diagram of the generation-measurement equipment are presented along with system test results.