The AM1600B1143 from Anatech Electronics is a Band Pass Filter with Frequency 1.45 to 1.75 GHz, Bandwidth 300 MHz, Center Frequency 1600 MHz, Insertion Loss 1.2 dB, Upper Rejection 45 dB DC-1290 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1600B1143 can be seen below.