There are plenty of very unusual echoes which can be attributed to the Leonids. We could not detect echoes during the transmission from Cyprus as the geometry was not adequate. Mpeg files are being prepared. Two samples of our radio recordings are shown below. They represent spectograms in a 25 Hz band around 1 kHz.
Low frequency are on top and higher frequencies are on the bottom of the plot.
By tuning into the radio signals some recordings have already been made prior to the anticipated peaks in activity later in the week. Note the spectrograms represent the time variation of the audio output of the receiver. The vertical scale shows frequency. Hz around the 1kHz central frequency. Higher frequencies are at the bottom of the figure, lower frequencies at the top.