The RSF-1575.420-2400-1411-TR-NS2 from Raltron is a Band Pass Filter with Frequency 1574.22 to 1576.62 MHz, Bandwidth 2.4 MHz, Center Frequency 1575.420 MHz, Insertion Loss 0.9 to 1.3 dB, Upper Rejection 30 to 43 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1575.420-2400-1411-TR-NS2 can be seen below.