Claim: WGDL signed on September 23, 1986 and began operating at night in 1991 under a long-term special temporary authority.
Evidence: WGDL signed on September 23, 1986. It began operating at night in 1991 under a long-term special temporary authority, made possible by the move of HIBS "Radio Dial" in San Pedro de Macorís, Dominican Republic, to 670 kHz.