The RSF-1582.400-31200-1411-TR from Raltron is a Band Pass Filter with Frequency 1566.8 to 1598 MHz, Bandwidth 31.2 MHz, Center Frequency 1582.400 MHz, Insertion Loss 1.2 to 2 dB, Upper Rejection 15 to 45 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1582.400-31200-1411-TR can be seen below.