The RSF-1588.655-4000-1411-TR from Raltron is a Band Pass Filter with Frequency 1586.655 to 1590.655, Bandwidth 4 MHz, Center Frequency 1588.655 MHz, Insertion Loss 1.7 dB, Upper Rejection 25 to 32 dB. Tags: Surface Mount, RF SAW Filter. More details for RSF-1588.655-4000-1411-TR can be seen below.