Y'know the AM broadcast band, the noisy scratchy muffled side of your car stereo which is only suitable for talk radio and traffic advisories?
Here's a signal received across ~500 miles.
@filkerdave @rey Back in the 90's when I lived in northwest Ohio, I once picked up an AM station out of St. Louis, Missouri (approx 400 mi). I don't recall it sounding this good, but it was still impressive.