Andrew Yoder has been listening to, writing about, and speaking about pirate radio stations, particularly on shortwave, for more than 30 years. He has written Pirate Radio Stations (1990, TAB Books), Pirate Radio (1996, HighText), Pirate Radio Operations (1995, with Earl T. Gray, Loompanics), Pirate Radio Stations (2000, McGraw-Hill), and The Pirate Radio Annual (2010-2014, Hobby Broadcasting). His blog is at: http://hobbybroadcasting.blogspot.com.