High-frequency part of the spectrum of short-period geomagnetic pulsations

Short-period geomagnetic pulsations were measured in the 3-49 Hz frequency range with a resolution of 0.35 Hz. Attention is given to a spectrum obtained by the superposition of the high-frequency tail of Pi1 pulsations on a waveguide signal. Data are presented on geomagnetic variations, pulsations, the ELF tail of pulsations at frequencies of 5 and 10 Hz, and riometric absorption.