At one time WSOS-AM 1170 Saint Augustine Beach and WSOS-FM 94.1 Fruit Cove were co-owned under the same ownership. When Renda Broadcasting acquired WSOS-FM from Westshore Broadcasting, Inc., apparently Renda also purchased the commonly shared AM-FM tower since WSOS-FM was still licensed to and serving Saint Augustine at the time. I don't know the logistics behind the WSOS-AM STA to remain silent, but my best cognitive hypothesis would be WSOS-AM is off the air due to financial reasons since AM 1170 has had a sporatic operating schedule for many years for this very reason.