The AM1030B816 from Anatech Electronics is a Band Pass Filter with Frequency 1.027 to 1.03 GHz, Bandwidth 6 MHz, Center Frequency 1030 MHz, Insertion Loss 1.7 dB, Upper Rejection 20dB @ 1055 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1030B816 can be seen below.