The AM1440B1286 from Anatech Electronics is a Band Pass Filter with Frequency 1.42 to 1.45 GHz, Bandwidth 25 MHz, Center Frequency 1440.4 MHz, Insertion Loss 4 dB, Upper Rejection 30dB @ 1274.3-1299.3 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1440B1286 can be seen below.