The AM900B1114 from Anatech Electronics is a Band Pass Filter with Frequency 750 MHz to 1.05 GHz, Bandwidth 300 MHz, Center Frequency 900 MHz, Insertion Loss 3.5 dB, Upper Rejection 45 dB @ 1200 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM900B1114 can be seen below.