Claim: KYET went on the air on 1180 kHz as KBWA in 1977, but on August 12, 1991, the station changed its call sign to KYET.
Evidence: The station went on the air on 1180 kHz as KBWA in 1977. On August 12, 1991, the station changed its call sign to the current KYET. 
1180 kHz (1977-2012) KBWA (1977-1983)
KDAN (1983-1991)