The RSF-922.000-5000-3030-TR from Raltron is a Band Pass Filter with Frequency 0.919.5 to 0.924.5 GHz, Bandwidth 5 MHz, Center Frequency 922 MHz, Insertion Loss 2.5 to 3 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-922.000-5000-3030-TR can be seen below.