
%0 Journal Article
%A McNabb, PW 
%A Fraser, BJ 
%T A Continuous Spectrum Analyser for Analogue Analysis of ULF Tape Recorded Data
%J Australian Journal of Physics
%D 1975/10/01
%V 28
%N 5
%P 647-650
%K 
%R https://doi.org/10.1071/PH750647
%U https://www.publish.csiro.au/paper/PH750647 
%X 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. 
