WEMJ went on the air April 9, 1961, as a
CBS Radio Network affiliate owned by the New Hampshire Broadcasting Corporation. The company's principal, George H. Jasper III, also owned
WCCM in
Lawrence, Massachusetts. WEMJ, along with 16 other stations in northern New England formerly owned by
Nassau Broadcasting Partners, was purchased at bankruptcy auction by WBIN Media Company, a company controlled by
Bill Binnie, on May 22, 2012. Binnie already owned
WBIN-TV in
Derry and
WYCN-CD in
Nashua. The deal was completed on November 30, 2012. In March 2016, WEMJ began a simulcast on W297BS (107.3
FM, referred to as "WEMJ-FM" by the New Hampshire Association of Broadcasters) and updated its branding to reflect this new over-the-air listening option. WEMJ dropped its news/talk programming on May 23, 2019, becoming a
Lakes Region simulcast of Binnie's
contemporary hit radio station in
Concord,
WJYY (105.5 FM). In October 2020, coinciding with the launch of a late morning talk show hosted by former
WGIR morning host Jack Heath (which airs on WEMJ, WTPL, and WTSN), WEMJ returned to a news/talk format. ==Translators==