VLF Radio Detection of SIDs (Very low Frequency detection of Sudden Ionospheric Disturbances)

The error “could not open port audio stream” in Windows 10 usually points to a problem with PortAudio, a cross-platform audio I/O library

I have overlaid data from the SID Monitoring Station (purple) onto my data (red) on picture below (SID Monitoring Station

Sudden Ionospheric Disturbances (SIDs) are changes in power level of very low frequency signals detected with simple equipment in our

From John at SARA Feb 2025: Hello,         The signals that we receive consist of a ground wave and

The graphs below show my graphs from these two days – the incredible aurora with the crown visible overhead came

The traces below show some SID-monitoring traces at very low frequency radio (23.4KHz) , demonstrating multiple large SIDs around the

Using UKRAA Sudden Ionospheric Disturbance Monitor (SIDs). (See https://sidstation.loudet.org/ionosphere-en.xhtml for more information on SIDs). 23.4KHz.

I am using one mini-PC for each radio astronomy experiment at LRO = these 2nd hand PCs are cheaply available

SIDs are changes in the ionosphere total power detected when solar flare hits the atmosphere. The power is detected from