The RSF-773.000-30000-1109-TR from Raltron is a Band Pass Filter with Frequency 758 to 788 MHz, Bandwidth 30 MHz, Center Frequency 773 MHz, Insertion Loss 2.2 to 3 dB, Rejection 49 to 25 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-773.000-30000-1109-TR can be seen below.