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City of license San Luis Potosí, San Luis Potosí
Broadcast area San Luis Potosí
Branding Los 40 Principales
Slogan Toda La Actitud
Frequency 540 (kHz)
103.9 (MHz)
First air date 1950
Format Spanish & English Top 40 (CHR)
Power 150,000 watts (AM)[1]
ERP 25,000 watts (FM)[2]
Class A (AM)
Affiliations Televisa Radio
Owner Televisa Radio
(Cadena Radiodifusora Mexicana, S.A. de C.V.)

XEWA-AM and XHEWA-FM is a Mexican radio station that serves the San Luis Potosí area. It started broadcasting in the 1950s as a relay of XEW-AM 900 kHz in Mexico City, remaining so until the late 1980s when changes to the format occurred. Later the station became Ke Buena, broadcasting from San Luis Potosí to the entire Mexican Republic; by this point, it was the most powerful station in Mexico with 150 kW of power. Currently the station is again a relay of XEX-FM with the moniker of "Los 40 Principales".

XEWA-AM 540 Booster[edit]

There is also an XEWA-AM in Monterrey, Nuevo León, also on 540 kHz and owned by Televisa Radio, but with a power of 1.5 kW day/1 kW night. The concession for this unusual on-channel booster was issued on May 4, 1961.


XEWA-AM is a 150 kW clear-channel station station, which covers the Mexican states of San Luis Potosí, Nuevo León, Tamaulipas, Coahuila, Zacatecas, Querétaro, Guanajuato and Aguascalientes. The station also has nighttime coverage throughout most of Mexico, as well as the neighboring American states of Texas and New Mexico.


These are the names of some of the formats of XEWA-AM 540 kHz:

  • XEW with the slogan: "The Voice of Latin America from Mexico."
  • Superstar W-A
  • Ke Buena
  • W Blue and Silver Network
  • W Radio with the slogan: "W Radio, Radio in High Definition"
  • Los 40 Principales with the slogan: "All the attitude!"


External links[edit]