The Arizona Cardinals are on both KTAR-AM 620 and FM 92.3, even though both stations have different formats otherwise.
The Cardinals' official flagship is KTAR-FM. Their game will always be on 92.3 - no exceptions. If there is a Diamondbacks, Suns, or ASU game going on at the same time, that game is carried on AM 620. Only if there is no other game is the Cards game broadcast on both frequencies.
The Cardinals' flagship station has been on FM since 1994 - KESZ 99.9, KGLQ (now KMXP) 96.9, KSLX 100.7, and now KTAR-FM. There has been an AM simulcast since 1996, when Bonneville won the rights the first time for KGLQ/KIDR 740.