The UIYBPF9191A522T524SF from UIY Inc. is a Band Pass Filter with Frequency 522 to 524 MHz, Bandwidth 2 MHz, Insertion Loss 1.5 dB, Rejection 40 dB(lower)/85 dB(upper), Upper Rejection 85dB @3200-4000MHz. Tags: Module with Connectors. More details for UIYBPF9191A522T524SF can be seen below.