CKSR-FM (98.3 MHz Star 98.3) is a Canadian radio station located in Chilliwack, British Columbia.

CKSR began broadcasting on June 27, 1927, as CHWK (which stood for CHilliWacK), airing for two hours a day (noon-1 p.m. and 6-7 p.m.) at its original frequency of 1210 AM with transmission power of 5 watts.

CHWK moved to 665 AM and increased power to 100 watts in 1930, and Wells bought Menzies' ownership stake in the station in 1933, with programming geared toward the Chilliwack area's farmers.

In 1957, Fraser Valley Broadcasters Ltd. was established as the owner of CHWK, with Jack Pilling as the new company's largest shareholder.

In 1966, CHWK and CFVR parent Fraser Valley Broadcasters was under the ownership of Murdo Maclachlan, Bill Wolfe, and Bill Teetzel when Dennis Barkman purchased a ⅓ interest in the company by acquiring Teetzel's shares, with an option on the remaining shares of Maclachlan and Wolfe.

Jack Pilling, the former president and majority owner of Fraser Valley Broadcasters, died on July 16, 1977, at age 69.

On October 1 that year, Fraser Valley Broadcasters put the original CKSR-FM (also identified on-air as Star FM) on the air at 107.5 in Chilliwack, with a repeater station (originally called CFSR-FM) in Abbotsford at 104.9, broadcasting a mixed adult contemporary/easy listening format.

On June 25, 1994, CFVR discontinued its adult contemporary format for oldies music and changed its call sign to CKMA (adopting the on-air brand 85 Radio MAX).

Dennis Barkman, who had relinquished his interests in Fraser Valley Broadcasters some years earlier, died on March 11, 1995, of a brain tumour at the age of 62.

[4][5] The application by Golden West Broadcasting was denied by the CRTC on May 30, 2008, in favor of an application by Radio CJVR Ltd. (later called Fabmar Communications Ltd., the owner of Melfort, Saskatchewan, station CJVR-FM, since acquired by the Jim Pattison Group), which began using the CHWK calls for its new station when it went on the air with a test signal on February 11, 2009, then officially launched on Friday, February 20 at 12:05pm.