Ham Radios Crowdsourced Ionospheric Science During Eclipse (eos.org)

The Boulder ionosonde detected the eclipse quite nicely.

https://www.w6rz.net/BC840_foF2-101423.png

My local ham group was doeing a "ragchew" on 2m as the eclipse was just starting (over us). It was the scratchiest net I've ever heard. That's only roughly 30mi at 147Mhz, but it made a big difference.