 WWSH's format was changed in 1982 to hot adult contemporary branded as "FM 106", soon modified one year later to contemporary hit radio (CHR); the call sign was changed to WZGO and changed monikers to "Z-106" in July 1984.On May 23, 1986, the station's call sign was changed to WTRK and rebranded again as "Electric 106", consulted by Mike Joseph, who had created the "Hot Hits" version of CHR for WCAU-FM (98.1) five years earlier.Like WCAU-FM in its early months of hot hits, WTRK featured a very tight playlist of only current hit songs and intense disc jockeys; unlike WCAU-FM, however, ratings and revenue for "Electric 106" did not improve.