XHSM-FM is a Mexican radio station broadcasting on 100.9 MHz FM in Ciudad Obregón, Sonora. The station is branded as La Poderosa and carries a grupera music format. It is owned by Grupo AS Comunicación (operated as XHSM-FM, S.A. de C.V.) and has XHIQ-FM as a sister station. The transmitter operates with an effective radiated power (ERP) of 13.37 kW.
History
- Concession and Early Years: XHSM‑FM received its broadcasting concession on 28 November 1988. The original concessionaire was Sociedad de Radiodifusión y Televisión, S.A., a subsidiary of the Radiorama network. The station initially aired a Spanish‑language contemporary format under the brand Estéreo Vida.
- Mid‑2000s: Operation was transferred to Radio S.A., which relaunched the station as Máxima FM, featuring pop and rock music.
- 2007–2009: Radiorama resumed control in late 2007, affiliating XHSM‑FM with the Los 40 Principales pop network. In May 2009 the station, along with other Radiorama outlets in Ciudad Obregón, was leased to Grupo Larsa Comunicaciones and rebranded Sin Límites, while retaining a pop format.
- 2019: In August 2019 the station went silent when Larsa ceased operations in the market. Radiorama reclaimed direct operation in November 2019 and changed the format to grupera, adopting the La Poderosa branding that continues to the present.
Technical Data
- Frequency: 100.9 MHz FM
- Effective Radiated Power: 13.37 kW
- Owner: Grupo AS Comunicación (XHSM‑FM, S.A. de C.V.)
- Sister Station: XHIQ‑FM
Programming
The La Poderosa format emphasizes regional Mexican genres, particularly grupera, catering to listeners in Ciudad Obregón and surrounding areas of Sonora. The station’s programming includes music blocks, local news, and community-oriented content.