WFID
radio station licensed to serve Río Piedras, Puerto Rico
WFID (95.7 FM), branded on-air as Fidelity, is a radio station licensed to serve Río Piedras, Puerto Rico, established in 1958. As of 2015 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, Rafael Acosta and his wife Victoria Suarez, made their first broadcast from their house with a 250W FM transmitter on November 17, 1958 before hiring others. It was Puerto Rico's third FM radio station (along with WIOB in Mayagüez and WKAQ-FM in San Juan).
Originally, WFID broadcast on 95.9 MHz, but this frequency was at that time catalogued as Class A, subject to power restrictions, so Acosta applied for a change to 95.7 MHz, class B, 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 it became the first FM radio station to broadcast in stereo in Puerto Rico and Latin America.
The public source identifies “WFID” as radio station licensed to serve Río Piedras, Puerto Rico. This brief keeps that definition visible, then builds a research path around WFID, radio and station.
Why this record matters
A short description can identify a subject without explaining its stakes. For “WFID”, the useful work is to connect “radio station licensed to serve Río Piedras, Puerto Rico” to the records capable of establishing context and consequence.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Feb 19, 2026. The linked authority identifier is Q7949312. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1958, 2015, 1962 and 1971.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “WFID”, its source revision and the description used here.
- Expand the search: follow WFID primary sources, WFID archive and WFID research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “WFID”?
- Which earlier names or jurisdictions may reveal additional records?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “WFID” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.