I’ve also had a fairly longstanding interest in VLF communications, and so the prospect of building a radio system for monitoring radio for SIDs (Sudden Ionospheric Disturbances) seems like a good project. Yes, I did mention this event and gave some links to VLF receivers at the time, but I’ve been thinking about this some more.Īs an astronomy/telescope buff, I have built simple telescopes for looking at the sun, but I haven’t done much of that lately, and I have only recently become interested in observing the sun’s effect on the Earth’s radio environment. Back on June 7, there was a spectacular coronal mass ejection on the sun:
