CFOS is an AM radio station broadcasting from Owen Sound, Ontario, Canada.

CFOS is owned and operated by Bayshore Broadcasting of Owen Sound.

On June 21, 1978, CFOS opened a semi-satellite station CFPS at Port Elgin.

CFPS was given approval by the Canadian Radio-television and Telecommunications Commission (CRTC) in 2005 to convert to 97.9 MHz.

[2] On January 17, 2024, Bayshore Broadcasting applied to the CRTC to convert CFOS to 89.3 MHz (channel 207B1) with an effective radiated power (ERP) of 1,500 watts (non-directional antenna with an effective height of antenna above average terrain EHAAT of 214 metres).