The AM1804B1176 from Anatech Electronics is a Band Pass Filter with Frequency 1.76 to 1.85 GHz, Bandwidth 95 MHz, Center Frequency 1804 MHz, Insertion Loss 1.5 dB, Upper Rejection 40 dB 2150 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1804B1176 can be seen below.