WZLX
WZLX (100.7 FM) is a classic rock radio station licensed to Boston, Massachusetts, serving the Greater Boston area as "Boston's Classic Rock." Owned and operated by iHeartMedia since 2017, the station has maintained a classic rock format since 1985, making it one of the pioneering outlets for the genre in the United States.[1][2][3] The 100.7 MHz frequency traces its origins to 1948, when it launched as WCOP-FM, a simulcast of the AM counterpart, before evolving through multiple formats including classical music in the 1960s, beautiful music and country in the 1970s, and contemporary hit radio briefly in 1985.[3] In September 1985, under ownership by First Media (later acquired by Cook Inlet Radio Partners), the station adopted its current classic rock format as "Classic Hits 100.7" and changed its call letters to WZLX, targeting album-oriented rock from the 1960s and 1970s.[3] Ownership shifted to Infinity Broadcasting in 1993, which became part of CBS Radio in 1996, where it remained until the 2017 merger between CBS Radio and Entercom required divestitures; iHeartMedia acquired WZLX as part of a station exchange deal involving assets in Boston and Seattle.[3][4] The station's transmitter is located atop the Prudential Tower in Boston, with studios in the city's Brighton neighborhood since 2007.[3] WZLX features a lineup of specialized programming, including The Chuck Nowlin Morning Show (6:00 a.m. to 10:00 a.m.), hosted by veteran broadcaster Chuck Nowlin since April 2025; Carter Alan in middays (10:00 a.m. to 2:00 p.m.); Kenny Young in afternoons (2:00 p.m. to 7:00 p.m.); and Jameson in evenings (7:00 p.m. to midnight).[5] The station also broadcasts in HD Radio, with HD2 simulcasting sister talk station WRKO and HD3 carrying the K-Love Christian contemporary network as of 2025.[2] Notable milestones include hosting Charles Laquidara's "Big Mattress" morning show from 1996 to 2000 after its move from rival WBCN, and maintaining strong ratings as Boston's leading classic rock outlet.[3]Overview
Technical Specifications
WZLX broadcasts on 100.7 MHz in the FM band from its transmitter atop the Prudential Tower in Boston, Massachusetts.[3] The station is designated as a Class B facility by the Federal Communications Commission (FCC), allowing for a maximum effective radiated power (ERP) suitable for wide-area coverage in urban markets.[2] It was first licensed to broadcast in October 1948, initially as WCOP-FM simulcasting its AM counterpart.[3] Key technical parameters include an ERP of 21,500 watts for the main analog signal, with a height above average terrain (HAAT) of 235 meters (771 feet), enabling robust signal propagation.[2] The transmitter coordinates are approximately 42°20'50" N, 71°04'57" W, utilizing a six-bay antenna system mounted on the Prudential Tower structure.[3] Backup antennas provide redundancy with lower power outputs of 1 kW and 3.8 kW at slightly varied HAATs of 223 meters and 255.4 meters, respectively.[6]| Parameter | Main Antenna Value |
|---|---|
| Frequency | 100.7 MHz (Channel 264) |
| ERP | 21,500 watts |
| HAAT | 235 meters (771 feet) |
| Class | B |
| Licensing City | Boston, Massachusetts |