WBZY (105.7 FM) – branded Z105.7 – is a commercial radio station licensed to Canton, Georgia, broadcasting a Spanish CHR format. Owned by iHeartMedia, WBZY serves the Atlanta metropolitan area. The WBZY studios are located in Atlanta, while the station transmitter resides in the nearby suburb of Marietta. Besides a standard analog transmission, WBZY broadcasts over two HD Radio channels, and is available online via iHeartRadio. WBZY also repeats over the 32.25 digital subchannel of Atlanta television station WANN-CD (29 UHF, 32 PSIP) and previously did so on a number of occasions with sister station WBZW, the most recent lasting until November 5, 2021. History Country (1964-1993) From its sign-on in 1964 until 1991, the station was country music WCHK-FM on 105.5 MHz in Canton, Georgia, sister station to WCHK AM. In 1993, owner Cherokee Broadcasting received FCC approval to upgrade to class C2, with a much stronger signal and relocation of their transmitter site from the WTLK-TV 14 (now WPXA-TV) tower on Bear Mountain (near Lake Arrowhead southwest of Waleska) south-southeastward toward Atlanta. (This large broadcast tower in Holly Springs is next to Interstate 575 and old Georgia 5 at Rabbit Hill Road, and now only has mobile phone base stations about halfway up on it.) This change also required a frequency shift of one channel to 105.7. Subsequently, this also allowed a later move by WMAX-FM (now sister station WRDG) on 105.3 from Carrollton east towards Atlanta, also having changed channels from 105.5. WCHK remained under local management for a little over a year afterward, briefly as "North Metro's K-105" then as "Country 105.7", and finally as "Atlanta's Classic Country 105.7", before owner Chuck McClure leased the station to iHeartMedia (which also owns 105.3), then known as Clear Channel Communications. News/talk (1993-2000) Under Clear Channel management, the station became WGST-FM and simulcast news/talk WGST AM 640 (beginning in 1993). In the mid-1990s, it again relocated its transmitter site southward, this time to the Sweat Mountain antenna farm in northeastern Cobb County (where several other stations are). In 2004, Clear Channel purchased the station and license outright from McClure, and still holds Canton as its city of license. A new WCHK-FM, located at 100.1 and also owned by McClure, was sold and changed to WNSY FM (oldies "Sunny 100") in 1999, later becoming the market's third hispanic FM station, but covering more toward northwest Georgia. Adult contemporary (2000-2002) On