Implications of the reported low energy electron gradients

Quasi-periodic solar emission has been observed with a radio spectrograph operating at 18–28 MHz during weak decametric continuum on August 22, 1972. The continuum activity was observed simultaneously on fixed frequency receivers at 18 MHz and at 26 MHz. The pulsations showed a mean period of 4 s and a sharp low-frequency cut-off at 24 MHz. Spectral characteristics of these and similar pulsations observed by other workers are examined and shown to be consistent with an interpretation based on an oscillating magnetic flux tube in the solar corona.