LF Radio – Positive Hits & Hip Hop. Broadcasting on 91.9FM Tarpon Springs/Palm Harbor – 91.5HD3 Tampa Bay – 88.1HD3 Sarasota/Bradenton. Our heart and mission is to reach a generation with the gospel though positive music and topics of encouragement as well as entertainment. LF Radio is a listener supported radio station and a part of RTN - Radio Training Network family.