The RSF-2441.800-83500-1411-TR-NS1 from Raltron is a Band Pass Filter with Frequency 2400.05 to 2483.55 MHz, Bandwidth 83500 kHz, Center Frequency 2441.800 MHz, Insertion Loss 2.4 to 3.0 dB, Rejection 39 to 10 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-2441.800-83500-1411-TR-NS1 can be seen below.