Image captured with Argo at 16.24 UTC using 3 second dots on a frequency just below 136.5 kHz. Any guesses? A highly compressed crop circle? John, W1TAG
J.B., They each had five "steps" between roughly 775.6 to 776.6 which repeated over and over. Each step was about 45 seconds long. What is it? WD2XDW. John Andrews, W1TAG