The RSF-911.500-27000-1411-TR from Raltron is a Band Pass Filter with Frequency 898 to 925 MHz, Bandwidth 27000 kHz, Center Frequency 911.5 MHz, Insertion Loss 2 to 2.2 dB, Rejection 60 to 40 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-911.500-27000-1411-TR can be seen below.