My old car radio would tune to 87.7. During morning tropo events, I would regularly hear Spanish from simulcasting WDCN / WDCO from Washington, DC / Ocean City, MD. Not sure which station I was hearing, sometimes it would have an echo so I expect I was getting both of them. This is from Northeastern North Carolina. Maybe 225 miles or so from the stations. My current radio is a Pioneer HD Supertuner III and it does not go to 87.7.