Sadness and Static as AM Radio Stations Fade

From a Wall Street Journal commentary by Peter Funt headlined “Sadness and Static as AM Stations Fade”:

When I lived in Denver in the early 1970s, Sunday nights included an audio excursion to my hometown of New York—a trip only AM radio could provide. At 770 on the dial I listened to WABC, with its distinctive disc jockeys, rock music and “news at :25 and :55,” via a signal traveling more than 1,600 miles.

This magic was possible only for a few hours when station KOB in Albuquerque, N.M., which shared the 770 frequency, shut down for maintenance. With the competing signal out of the way, WABC’s sound was able to travel far west—literally bouncing off the ionosphere.