|Broadcast area||McAllen, Texas|
|HAAT||98.9 meters (324 ft)|
|Callsign meaning||K JAck FM Valley (former branding)|
|Former callsigns||KJAV (1980-2011)
(Bi-Media Licensee, LLC)
|Sister stations||KBUC, KESO/XHRR-FM, KSOX, KZSP, XHCAO-FM, XHAVO-FM|
On January 18, 2016, KJAV dropped the Jack FM branding and rebranded as Ultra 104.9.
This station received its original construction permit from the Federal Communications Commission on October 9, 1979. The new station was assigned the KJAV call sign by the FCC on January 14, 1980. KJAV received its license to cover from the FCC on October 23, 1980.
In August 1986, license holder Lonnie M. Horton reached an agreement to sell this station to Paulino Bernal. The deal was approved by the FCC on October 10, 1986, and the transaction was consummated on May 4, 1987.
In October 2004, La Radio Cristiana Network Inc. (Paulino Bernal Jr., president) reached an agreement to sell this station to BMP Radio through their BMP RGB License Company, LP, subsidiary holding company for a reported $7 million. The deal was approved by the FCC on December 14, 2004, and the transaction was consummated on January 16, 2005. At the time of the sale, KJAV broadcast a Spanish-language Christian radio format.
After BMP Radio bought the station in 2005, they changed the Spanish format of the station. Later it became a rhythmic oldies format, branded as "Jammin 104.9 The Valley's Old School". The station had a morning show on weekdays with Tony Fornia and then played music with no disc jockeys afterward. In August 2007, the station announced that it would soon change formats accompanied by the R.E.M. song "It's the End of the World as We Know It (And I Feel Fine)" every time it went to commercials. In mid-September 2007, the station flipped the format to Jack FM. In 2009 Jack FM began broadcasting the games of the Rio Grande Valley Vipers of the NBA Development League.
BMP sold the station and five sister stations to Roberto González's MBM Texas Valley LLC for a purchase price of $2.5 million; the transaction was consummated on March 14, 2013.
On November 6, 2015, KJAV and sister station KVJY were sold to Bi-Media, LLC. The transaction was consummated on December 31, 2015, at a purchase price of $2.2 million.
- "Station Information Profile". Arbitron. Retrieved July 16, 2009.
- "Application Search Details (BPH-10779)". FCC Media Bureau. October 9, 1979.
- "Call Sign History". FCC Media Bureau CDBS Public Access Database. Retrieved March 14, 2011.
- "Application Search Details (BLH-19800826AG)". FCC Media Bureau. October 23, 1980.
- "Application Search Details (BALH-19860825GU)". FCC Media Bureau. May 4, 1987.
- "Deals - 2004-11-08". Broadcasting & Cable. November 7, 2004.
- "Application Search Details (BALH-20041026AGC)". FCC Media Bureau. January 16, 2005.
- Query the FCC's FM station database for KJAV
- Radio-Locator information on KJAV
- Query Nielsen Audio's FM station database for KJAV