By 1952, Carter and Ed and Psyche Pate became business partners and purchased the station for $40,000 from the Johnson County Broadcasting Corporation. They moved KPRS to a new site at 2814 East 23rd Street in Kansas City.In 1969, the Carters had controlling interest in the station. In 1971, KPRS-AM moved its programming to the 103.3 frequency on the FM dial became KPRS-FM, “Hot 103 Jamz” and the 1590 frequency became KPRT-AM, “Gospel 1590, The Gospel Source” an urban gospel-formatted station. The studios and offices moved to the Crown Center and the Carters moved to Florida to open a new corporate headquarters.Then four years later in 1975, KPRS Broadcasting Corporation, which was later renamed Carter Broadcasting Group, became one of the first fully automated radio stations in the Midwest, and in the country for that matter.
Ensuring the business would remain a family-run entity, Michael Carter, Andrew's grandson, was named president of the company. One of his first moves was to take both stations back to the "live" formats. Michael Carter, who actually made his radio debut at age 8 on KPRS-AM, also made KPRS a 24-hour station. In 1989, station owner Andrew Carter died at his Florida home. The Black radio pioneer's legacy lived on and moved forward. In 1990, KPRS-FM jumped from 8th to 5th in the Kansas City market, according to the Arbitrons. Also in the 1990s, KPRS stopped playing what it perceived as negative hip-hop or gangsta rap and explicit and overtly sexual R&B. In 1995, KPRS picked up the Crystal Award from the National Association of Broadcasters. The Carter Broadcast Group celebrated its 45th anniversary in 1995, and had its highest ratings ever, reaching the number one slot for that year. In 2000, the company celebrated its 50th anniversary.
In 2010, Carter Broadcast Group Proudly celebrated its 60th year of the Nation's oldest African-American owned and operated company. KPRS remains as Kansas City's Original Jamz!