KTOL was first heard in the fall of 2002, transmitting from a tower off Ridge Ranch Road in the hills east of Geyserville. Â The station was launched by JYH Broadcasting, controlled by Sonoma County business owner Judy Yep Hughes. She had earlier obtained a construction permit for Windsor-licensed KMHX but realized a profit by selling the CP before the station went on the air.
Two years later, KTOL became KNOB.
