Rock FM 91.9 is a music radio station serving the north of Johannesburg.

Rock FM is operated under a low power commercial FM license from ICASA.

The signal has an average range of 5–10 km, covering the areas: Northriding, Johannesburg North, Sundowner, Boskruin, Randpark Ridge, Fourways and Randburg.

The power output (ERP) of Rock FM's signal is 1 Watt.

24/7[1]