The AM3000B1056 from Anatech Electronics is a Band Pass Filter with Frequency 2.98 to 3.01 GHz, Bandwidth 35 MHz, Center Frequency 3000 MHz, Insertion Loss 3 dB, Upper Rejection 30 dB @ 3135-6000 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM3000B1056 can be seen below.