Showing papers on "Blackout published in 1971"
01 Sep 1971
TL;DR: In this article, the authors describe an approach designed to minimize the effect of the RF blackout by means of employing a sampled data system the output of which consists of 1-Fsec pulses of 2-kw RF power level.
Abstract: Instrumentation of high-velocity re-entry rocket systems at Sandia Laboratories has been complicated because of dependence on onboard magnetic tape recorders to store data until the carrier emerges from the radiofrequency blackout. This paper describes an approach designed to minimize the effect of the RF blackout by means of employing a sampled data system the output of which consists of 1-Fsec pulses of 2-kw RF power level. The effort was initiated in the spring of 1970 for the purpose of obtaining real-time data during the re-entry blackout phase of a Sandia re-entry flight test. Re-entry velocities in the vicinity of 25,000 fps are expected.