The RSF-2442.000-79000-1109-TR from Raltron is a Band Pass Filter with Frequency 2402.5 to 2481.5 MHz, Bandwidth 79000 kHz, Center Frequency 2442 MHz, Insertion Loss 1.5 to 2.2 dB, Rejection 48 to 27 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-2442.000-79000-1109-TR can be seen below.