The AM1440B987 from Anatech Electronics is a Band Pass Filter with Frequency 1.29 to 1.6 GHz, Bandwidth 310 MHz, Center Frequency 1440 MHz, Insertion Loss 1.2 dB, Upper Rejection 20 dB 820 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1440B987 can be seen below.