A Continuous Spectrum Analyser for Analogue Analysis of ULF Tape Recorded Data
Open Access
- 1 January 1975
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Physics
- Vol. 28 (5) , 647-650
- https://doi.org/10.1071/ph750647
Abstract
A sweep-frequency spectrum analyser for Pel geomagnetic pulsations (0�2-5 Hz) is described. It utilizes a rotating head assembly with two replay heads for scanning the data tape which is transported by a standard audio frequency quarter-inch tape deck. Frequency and time resolutions of O� 1 Hz and 6 s in the Pel band may be obtained.Keywords
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