In October, AR2775 set off 2 C flares and while plasma from the flare didn’t struck Earth, UV radiation caused a short radio interruption over South America. If you own a shortwave radio, you might have discovered there isn’t as much to listen to broadcast-wise as there was years back. Even the AM radio band isn’t the essential it utilized to be. Maybe the most significant commercial users of the radio bands now are transoceanic air travel and ships at sea, but even then, many of those uses are now using satellites and much higher frequencies. Ham radio operators are still there, of course, as are some time and frequency basic stations like WWV.
In October, AR2775 set off two C flares and while plasma from the flare didn’t hit Earth, UV radiation triggered a short radio interruption over South America. Even the AM radio band isn’t the pillar it used to be. Possibly the greatest business users of the radio bands now are transoceanic air travel and ships at sea, but even then, numerous of those uses are now using satellites and much higher frequencies.