Various types of musical and non-musical atmospherics occurring within the frequency range lying between 150 and 4000 c.p.s. have been studied. Particular attention is directed to two types of the former, one a short damped oscillation, apparently a multiple reflection phenomenon, and the other a varying tone of comparatively long duration, probably related to magnetic disturbances. Several quasimusical atmospherics which appear to be associated with the two more distinct types are described. Dependence of atmospheric variations on diurnal, seasonal and meteorological effects is discussed. Characteristics of audio frequency atmospherics are shown in oscillograms and graphs.
No takes yet. Share an insight, caveat, or question.
EVERETT T. BURTON (1933) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: