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Australian Journal of Physics Australian Journal of Physics Society
A journal for the publication of original research in all branches of physics
RESEARCH ARTICLE

An Automatic Dynamic Spectrum Analyser for Video Tape Recorded Signals

GRA Ellis

Australian Journal of Physics 26(2) 253 - 256
Published: 1973

Abstract

A time-expansion sweep frequency spectrum analyser is described for signals in the 0-3 MHz frequency range. It is based on a standard video tape recorder used in the single frame replay mode. With a time-expansion ratio of 400 between the record time and replay time, a frequency resolution of 10 kHz together with a time resolution of 0·5 ms is realized. An example of the spectra of Jupiter radio bursts made with the analyser is presented.

https://doi.org/10.1071/PH730253

© CSIRO 1973

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