||This article needs additional citations for verification. (January 2009)|
|City of license||Baltimore, Maryland|
|Broadcast area||Baltimore, Maryland|
|Branding||CBS Sports Radio 1300|
|First air date||1920s (as WEAR)|
|Callsign meaning||New JerZ (Jersey); Original call letters of what is now WABC in New York.|
|Former callsigns||WEAR (1920s)
|Affiliations||CBS Sports Radio|
(CBS Radio WLIF-AM, Inc.)
|Sister stations||WJZ-FM, WJZ-TV, WLIF, WWMX|
History of the WJZ call letters 
The WJZ callsign was first used on what is now WABC in New York City. The original Westinghouse Electric Corporation, whose broadcasting division is a predecessor to the current broadcasting unit of CBS Corporation, launched WJZ in 1921, located originally in Newark, New Jersey. WJZ was sold in 1923 to the Radio Corporation of America, who moved its operations to New York, and in 1926 WJZ became the flagship station for the NBC Blue Network. In the 1929 movie The Cocoanuts the station was name-checked by Chico Marx in a sequence of running gags between Chico and Groucho: Chico uses the station's call-sign as the punchline of a punning joke based on his confusion over the meaning of the word "radius", which he confuses with 'radios', leading to the mention of the station's call-sign. NBC Blue would become the American Broadcasting Company in 1942. ABC later established WJZ-FM and WJZ-TV at the same time in 1948.
In 1953 ABC merged with United Paramount Theatres, and changed the call letters of their New York area stations to WABC, WABC-FM (now WPLJ) and WABC-TV. Four years later, Westinghouse Broadcasting acquired Baltimore television station WAAM (channel 13) and changed its call letters to WJZ-TV, which remained an ABC affiliate until 1995 when the station switched to CBS.
WEAR/WFBR (1920s–1990) 
The 1300 kHz frequency has a long history in Baltimore. AM 1300 began with the callsign WEAR. Later in the 1920s, it changed its name to WFBR, which stood for First Baltimore Regiment, from whose Armory on Preston Street it broadcast. Arthur Godfrey started his radio career at WFBR.
By the 1960s WFBR had a CBS affiliation and was a Top-40 music station with a solid news department and extensive local sports coverage. The station had its studios on E. 20th Street in Baltimore City, and a transmitter on the south side of the mouth of the Patapsco River off Waterview Avenue.
In the 1970s, WFBR's on-air talent featured popular personalities such as "The Flying Dutchman" Pete Berry; Ron Matz, and his fictitious alter-ego, "Harry Horni"; Johnny Walker, a wildly popular morning DJ who was "cutting edge" for his time; "The Coach", Charley Eckman, a former NBA basketball coach and referee, who later became a Baltimore sportscasting legend; and a young, but experienced, broadcaster named Tom Marr who pulled double-duty as a newsman and sportscaster for the station. For years, WFBR marketed itself as "Mad Radio 13".
In addition to sports and music, WFBR had an award-winning news team. One of its most popular news programs was a weekday afternoon panel discussion known as Conference Call. The award-winning program covered news topics of local, state, and national interests and was moderated by longtime newsman Ken Maylath. Regular panelists included WFBR's general manager Harry Shriver, as well as various local politicians from throughout Maryland.
From 1979 through 1986, WFBR was the radio flagship station for the Baltimore Orioles. The team had previously aired its games on Maryland's most powerful station, WBAL. Under the leadership of Shriver, WFBR promoted the O’s to levels unprecedented by its previous flagship station, creating what became known as "Oriole Magic".
From 1979 through 1982, the O's radio broadcast team featured longtime O's announcers Chuck Thompson and Bill O'Donnell, along with WFBR veteran Tom Marr. O'Donnell left the broadcast team early in the 1982 season due to an illness from which he eventually died later that year. After the 1982 season, the Orioles moved Chuck Thompson from the radio booth to do the TV broadcasts full-time on WMAR-TV, with Brooks Robinson. Once Thompson left the radio booth, WFBR's general manager Harry Shriver replaced him by hiring the now legendary Jon Miller to team up with Marr on the radio broadcasts. Overnights during this period was Al St. John.
Musically, WFBR evolved from Top 40 in 1980 to more of an adult contemporary format by 1982. The station began to also move from a music intensive approach to more of a full service approach. The station began to add evening talk shows by 1984. In 1986, when WCBM returned to an adult contemporary music format, WFBR switched to a "news/talk-radio" format featuring other hosts such as Alan Christian, Les Kinsolving, Joe Lombardo, former Baltimore TV anchor Frank Luber, and Stan "the Fan" Charles. Ratings were decent but the station was not profitable.
In 1987, the Orioles sold their broadcast rights back to WBAL. By that time, Miller was under contract directly with the Orioles and stayed with the team, while Marr was under contract with WFBR and remained at the station to start a successful career as a radio talk-show host.
WLIF/WJFK (1990–2008) 
In 1988, WFBR was sold to Infinity Broadcasting (owners of crosstown WLIF), changed its call letters, and switched to an "oldies" music format. This format played only music from 1955 to 1965, excluding British Invasion artists. This station focused on artists like Elvis Presley, Everly Brothers, Crystals, Fats Domino, Ricky Nelson, Frankie Lymon, The Drifters, Jackie Wilson, Roy Orbison, early Motown music, and others. After the sale and format switch, some of WFBR's former on-air personalities moved to WCBM (680-AM) which was under new management at the time, and adopted aspects of WFBR's news/talk format. Ratings were very low with this format as in the summer of 1990. WFBR dropped the oldies format, shut down, and began simulcasting its FM station WLIF which was about to switch from Beautiful Music to Soft Adult Contemporary. WFBR 1300 briefly became WLIF, a move that required the FM station to become WLIF-FM for several years. The WFBR callsign has since been used by two stations: 95.3 WFBR-LP of Mt. Washington, Kentucky; and 1590 WFBR (AM), formerly known as WJRO, in Glen Burnie, Maryland, which coincidentally, was the home of the late Charley Eckman.
Eventually the station was renamed WJFK. WJFK AM was originally simulcast with WJFK-FM, a talk radio station that serves the Washington metropolitan area. This change was precipitated by WJFK-FM's addition of Howard Stern, which was also on Infinity's stations in New York and Philadelphia. This simulcast brought Stern to the Baltimore market.
When the Cleveland Browns relocated to Baltimore in 1996 and became the Ravens, WJFK (AM) was named as the team's radio flagship station, with games simulcast on its sister stations WLIF, and later WQSR. Longtime WMAR-TV sports anchor Scott Garceau was named the lead play-by-play man, with former Baltimore Colts running back Tom Matte as the color commentator. WJFK held the broadcast rights for the Baltimore Ravens from 1996 through the 2005 NFL season. WJFK's status as a flagship station for the Baltimore Ravens football franchise ended after the 2005 season; those rights were acquired by WBAL. To fill the gap in the team's coverage, WJFK and sister station WHFS aired Baltimore Football Uncensored throughout the 2006 season; the show is hosted by former Ravens announcers Scott Garceau and Tom Matte.
Current status 
WJFK changed its callsign to WJZ and WHFS changed is letters to WJZ-FM on November 3, 2008. Additionally, the callsigns of all three of Baltimore's major-affiliate TV stations have now been used on the city's radio stations; the WMAR call letters were once used on what is now WWMX. WJZ also uses the same "13" branding as its sister station, WJZ-TV, and now carries University of Maryland, College Park sporting events, whose rights were previously held by rival station WBAL. With the flip of WHFS to WJZ-FM and sports radio, WJZ had limited local programming on the weekends and was simply a relay of the ESPN national feed the majority of the time. On December 10, 2012, ESPN Radio was dropped for a simulcast of sister station WJZ-FM. The station became a full-time affiliate of CBS Sports Radio on January 2, 2013.
- "Call Sign History: WJZ". Federal Communications Commission. Retrieved 2009-01-15.
- Goldstein, Alan (2007-07-05). "Remembering Eckman". Press Box (Baltimore, Maryland: Word Smith Media Ventures, LLC) (2.27).
- Zurawik, David (June 21, 2012). "CBS to launch national sports radio network - Baltimore's WJZ-FM and AM key players". Baltimore Sun. Retrieved June 22, 2012.
- Official website
- Query the FCC's AM station database for WJZ
- Radio-Locator Information on WJZ
- Query Arbitron's AM station database for WJZ
- Isaacs, Stan. "The Orioles Play Stop The Music," Sports Illustrated, October 8, 1979.