The AM1472B743 from Anatech Electronics is a Band Pass Filter with Frequency 1.45 to 1.49 GHz, Bandwidth 40 MHz, Center Frequency 1472 MHz, Insertion Loss 1.0 dB, Lower Rejection 41 dB @ 1242 MHz. Tags: Ceramic, Surface Mount, Ceramic Filter. More details for AM1472B743 can be seen below.