continuing its WCOZ simulcast on August 31, 2007. WEMR changed to a simulcast of its 107.7 sister station programming classic hits in early 2009, and then changed its call sign to WGMF on June 1, 2009. WGMF became a separate standalone facility in August 2009. The then-WZMF, 730 AM, began a simulcast of WGMF, 1460 AM, on May 5, 2010, under an LMA pending its sale. The sale was completed in June 2010. WGMF and WZMF swapped call signs on July 4, 2018. This station then became WGMM in July 2021 when the call sign became available. In February 2023 WGMM rebranded as "Gem 99 & 100". Translators References External links 1987 establishments in Pennsylvania Classic hits radio stations in the United States Radio stations established in 1987 GMM