Back in the day radio was a “local” business. Many markets had a dominate signal station(s). A lot of markets had “over achieving” AM stations which didn’t have the biggest signal but had a lot of local listeners.
An example was Nashville TN in the 1960’s and early seventies: WSM and WLAC were heard in many states at night. Yet locally stations like WMAK (5KW daytime directional at night) owned the local top 40 market for years. IIRC WENO (5KW daytime 1KW directional night) was the only 24 hour country station in the market until WKDA (1 KW day 250 watts at night) flipped from top 40 to country. I never listened to WSIX but apparently it was an Adult favorite. I can only guess the underdogs did well in Nashville because WSM played chicken rock during the days and WLAC was news during the day and blues at night. Both 50 KW signals in Nashville were owned by Insurance Companies which do not always have the same goals as regular broadcasters. 1510 eventually went top 40 around 1972ish.
There are bound to be other AM “over achievers”.
An example was Nashville TN in the 1960’s and early seventies: WSM and WLAC were heard in many states at night. Yet locally stations like WMAK (5KW daytime directional at night) owned the local top 40 market for years. IIRC WENO (5KW daytime 1KW directional night) was the only 24 hour country station in the market until WKDA (1 KW day 250 watts at night) flipped from top 40 to country. I never listened to WSIX but apparently it was an Adult favorite. I can only guess the underdogs did well in Nashville because WSM played chicken rock during the days and WLAC was news during the day and blues at night. Both 50 KW signals in Nashville were owned by Insurance Companies which do not always have the same goals as regular broadcasters. 1510 eventually went top 40 around 1972ish.
There are bound to be other AM “over achievers”.