WPKX signed on in 1947 as WWNH, owned by Strafford Broadcasting Corporation. Initially, a 1,000 wattdaytimer, the station boosted power to 5,000 watts in 1954 and added night service, with the same power in 1967. WWNH was an easy listening station by 1971; that year, the station began an affiliation with CBS Radio. It became a contemporary station in 1974. An FM sister station, WWNH-FM was added October 21, 1979. Strafford Broadcasting Corporation sold WWNH to Salmanson Communications Partners in 1987; by then, the station had a country music format. Salmanson later changed the call letters to WKOS and the format to adult standards, via the AM Only service from Transtar Radio Networks. Another sale, this time to Bear Broadcasting Company, followed in 1990; Bear again changed the station's call letters and format, this time to WZNN and all-news, largely via a simulcast of CNN Headline News. In 1994, WZNN was again sold, this time to Precision Media, owner of WMYF and WERZ ; Precision reverted the station to standards in 1995, a format it also ran on WMYF. However, although WZNN and WMYF simulcast a local morning show, the station could not air the Stardust programming WMYF aired the remainder of the day, as WZNN's signal overlapped with that network's Lakes Region affiliate, WASR; as a result, the station rejoined AM Only. Precision Media sold its stations in the market to American Radio Systems in 1997. ARS soon applied to transition WZNN to an expanded band allocation on 1700 kHz, with proposed call letters WAYU. It then sold WZNN and WAYU, along with its other Seacoast properties, to Capstar Broadcasting in the midst of a merger with CBS Radio. Capstar converted WZNN and WMYF to a simulcast of Manchester sister station WGIRin September 1998, with 930 taking the WGIN callsign soon afterward. Along with the WGIR simulcast came an affiliation with NBC Radio, which was subsequently phased out by Westwood One in favor of CNN Radio. A few months later, Capstar merged with fellow Hicks, Muse, Tate & Furst subsidiary Chancellor Media to form AMFM Broadcasting, which itself announced a merger with Clear Channel Communications several months afterward. In the meantime, plans for WAYU were abandoned, and its construction permit was canceled on December 22, 2000. The station picked up Fox News Radio in the mid-2000s after Clear Channel signed a larger agreement with the service. In April 2011, WGIN dropped the WGIR simulcast and began to simulcast WMYF ; on February 7, 2012, the call sign was changed to WPKX. Most of the syndicated programming previously heard on WGIN is now carried on sister station WQSO. In 2013, the simulcast with WMYF ended and WPKX shifted to Fox Sports Radio.
