The AM1030B1110 from Anatech Electronics is a Band Pass Filter with Frequency 1.02 to 1.03 GHz, Bandwidth 6 MHz, Center Frequency 1030 MHz, Insertion Loss 1.7 dB, Upper Rejection 34 dB @ 1055 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1030B1110 can be seen below.