The RSF-797.000-12000-1411-TR from Raltron is a Band Pass Filter with Frequency 737 to 857 MHz, Bandwidth 120 MHz, Center Frequency 797 MHz, Insertion Loss 2.6 to 3.5 dB, Rejection 40 to 15 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-797.000-12000-1411-TR can be seen below.