It broadcasts a Christian talk and teaching radio format and is owned by the Central Baptist Theological Seminary of Minneapolis, hence the call letters.

For many years, the station's transmitter site was located on South Century Drive in Maplewood, the city of license, where the studios were co-located.

WCTS signed on in 1965 on 100.3 FM, with a format consisting mostly of conservative evangelists and Bible teachings by the Fourth Baptist Church in north Minneapolis.

Colfax took the FM station off the air for a few months and signed on again as WBOB on May 13, launching a country music format under the "Bob 100" moniker.

WCTS intends to move its translator to the IDS Center in downtown Minneapolis, following a feud with KPPS-LP, which withdrew its application for the channel.