WFID

WFID (95.7 FM) is a radio station licensed to serve Río Piedras, Puerto Rico, established in 1958. it is owned by the Uno Radio Group, and the broadcast license held by Madifide, Inc.
WFID broadcasts an adult contemporary music format.
History.
WFID's predecessor was Fidelity Broadcasting Corporation. The founders were Rafael Acosta and his wife Victoria Suarez, who, with no employees, made their first broadcast from their house with a 250W FM transmitter on November 17, 1958. It was the third FM radio station established in Puerto Rico (the others are WIOB in Mayagüez and WKAQ-FM in San Juan).
Originally, WFID was allocated the frequency of 95.9 MHz, but this frequency was at that time catalogued as Class A, subject to restrictions on power, so Acosta applied for a change of frequency to 95.7 MHz, class B, allowing power to be increased in 1962 to 12,500 watts. Acosta frequently travelled to the United States to stay up to date with technology, particularly the Gates transmitters and equipment. Acosta died in 1971, before FM became predominant. In 1962 the station had some employees, and became the first FM radio station broadcasting in stereophonic sound in Puerto Rico and Latin America. After Acosta's death the station was managed by Suarez, known as Doña Vicky, and the Acostas' son José Julián and daughter Carola. In 1980 Beautiful Music Service began broadcasting uninterrupted music for businesses. In 1983 the recently acquired WUNO was turned into NotiUno, a newstalk radio station.
 the 50,000-watts WFID was owned and operated by Arso Radio Corporation under Jesús Soto, who had been a friend of Acosta's.
One of Mr. Acosta's personal friend was the famous announcer and brother of the talented, The voice of Carlos Montalbán, a friend of Acosta and brother of Ricardo Montalbán, was the principal announcer in the early 1970s. WFID was the first FM radio station broadcasting "salsa", tropical music in stereo sound, Saturday nights on their program "El Bailable Don Q".
The program later was modified to Spanish ballads when the first "salsa" FM station came on the air. That radio station was Jesus Soto's WPRM-FM, SalSoul 98.
Programming.
In the seventies, WFID programs included:
In the sixties programming included segments like: