These call letters are still in use by the New Orleans station WRNO-FM; both were founded and originally owned by Joseph Costello III.
Before Costello's efforts, there were only three non-governmental American shortwave broadcasters on the air; by the end of the decade, that number had increased to sixteen.
Originally a separate broadcast from the FM station, eventually WRNO turned to simulcasting WRNO-FM, which also had a rock music format.
During the early 1990s WRNO turned to leasing airtime to religious and political commentators (for a time, it was the shortwave home of Rush Limbaugh's program) until a damaged transmitter forced the station off the air for several years.
[4] As of June 2009, WRNO apparently resumed broadcasting normally and was still appearing in some SWL logs at the beginning of 2010, but by the end of the year the station reported that the transmitter was once again offline for major repairs.