WMFN AM 640 Zeeland/Grand Rapids
Format: Ethnic; Spanish language
Contact this station through their web site, linked below:
Web site: www.birach.com
HD Radio Status: no
Daytime Power / # of Towers: 1,200 watts / 1, omnidirectional
Nighttime Power / # of Towers: 230 watts / 1, omnidirectional
Call Sign History:
- WMFN: 10/2/1995
- WISZ: 9/8/1993
- WROR: 3/11/1991
- WBMX: assigned 10/12/1988
Call Sign Origin:
- West Michigan's Fan (previous sports format)
On Air Date: 1990
Owner: Birach Broadcasting
Office Telephone: (616) 451-0551
- 4/2015: Construction permit granted to move station to Peotone, Illinois (south of Chicago).
- 11/7/2008: Format change to Regional Mexican / Spanish language.
- 12/2005: Station is noted broadcasting in AM stereo, but it is later dropped.
- 5/2005: Format change from News/Talk/Sports/Comedy as 'Hot Talk 640' to Adult Urban Contemporary as 'Smooth Vibes AM
640'. Broadcasts of Detroit Tigers baseball are dropped.
- 1/2004: Application filed to increase daytime power from 1,200 watts omnidirectional to 2,500 watts directional using
a 2-tower array; application was dismissed Nov 2004
- 11/2001: FCC approves sale to Birach Broadcasting
- 9/2001: Announced that the station, along with sister station WMJH-AM Grand Rapids, is being sold from Cook Media to Birach
Broadcasting for $1.9 million
- 2000: Business News format is broadened to include mainstream and sports talk
- 9/1/1999: Format switch from Sports to Business News as 'West Michigan's Financial News'
- 1995: Format is sports as WMFN, 'West Michigan's Fan'.
- 1993: Format is children's targeted 'Radio AAHS' with new calls WISZ.
- 1990: On air as WMBX with Middle-of-the-Road format.
Center of antenna array/transmitter location:
Old logo gallery: