The RSF-1280.00-20000-3030-TR from Raltron is a Band Pass Filter with Frequency 1270 to 1290 MHz, Bandwidth 20000 kHz, Center Frequency 1280 MHz, Insertion Loss 3.0 dB, Rejection 28 to 35 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1280.00-20000-3030-TR can be seen below.