WYRX-FM (94.3 MHz) is a radio station licensed to Plymouth, Indiana, serving Michiana and the South Bend area. WYRX-FM has a mainstream rock format, simulcasting WIRX, and is owned by Mid-West Family Broadcasting.

History WTCA-FM The station began broadcasting on July 20, 1966, holding the call sign WTCA-FM, a sister station to AM 1050 WTCA. The station was owned by the Kunze family's Community Service Broadcasters. Its transmitter was located one mile south of Plymouth, Indiana, and it had an ERP of 3,000 watts at a HAAT of 220 feet.

WNZE In 1981, the station's call sign was changed to WNZE. As WNZE, the station aired a country music format.The M Street Radio Directory. 1989. p. S-111. Retrieved August 11, 2018."Format Changes & Updates", The M-Street Journal. Vol. 11 No. 25. June 22, 1994. p. 1. Retrieved August 11, 2018. In 1992, the station's transmitter was moved to Lakeville, Indiana, and it ERP was increased to 11,300 watts at a HAAT of 150 meters."Facilities Changes", Broadcasting, April 1, 1991. p. 72. Retrieved August 11, 2018.Application Search Details, fcc.gov. Retrieved August 11, 2018.

WLTA In 1994, the station's call sign was changed to WLTA, and the station adopted a soft AC format. The call sign WLTA had been held by 100.7 in Elkhart, Indiana, which changed formats from soft AC to country as WBYT "B-100".

WZOC In spring 1996, the station adopted an oldies format, and its call sign was changed to WZOC."Format Changes", The M-Street Journal. Vol. 13 No. 13. March 27, 1996. p. 1. Retrieved August 11, 2018. The station was branded "Oldies 94.3". In summer 1996, the station was sold to Plymouth Broadcasting for $575,000."Changing Hands", Broadcasting & Cable, August 26, 1996. p. 36. Retrieved August 11, 2018. In March 2012, WZOC was sold to Douglas Road Radio for $2,100,000.Asset Purchase Agreement, fcc.gov. February 9, 2012. Retrieved August 11, 2018.Application Search Details, fcc.gov. Retrieved August 11, 2018.

On February 28, 2014, after the station had shifted from an oldies format to a classic hits format, it was re-branded from "Oldies 94.3" to "Z94.3".

In September 2015, Schurz Communications, which previously held a minority interest in Douglas Road Radio, agreed to acquire full ownership of the company. The transaction was part of the $442.5 million acquisition of Schurz' broadcast interests, including WZOC, by Gray Television. Though Gray initially intended to keep Schurz' radio stations, on November 2, it announced that Mid-West Family Broadcasting would acquire WZOC and Schurz' other South Bend radio stations for $5.5 million. The sale to Mid-West was consummated on February 16, 2016.Application Search Details, fcc.gov. Retrieved August 11, 2018.

In February 2022, WZOC shifted its format from classic hits to classic rock.

WYRX-FM In mid-December 2024, the station quietly changed its call sign to WYRX-FM. The change was a prelude to a switch to a South Bend-oriented simulcast of the mainstream rock format of WIRX in St. Joseph, Michigan, at 7 p.m. on January 6, 2025.WIRX Expands to South Bend

WYRX is an affiliate of the weekly syndicated Pink Floyd show "Floydian Slip."

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