The AM784B1257 from Anatech Electronics is a Band Pass Filter with Frequency 780.25 to 788.75 MHz, Bandwidth 8.5 MHz, Center Frequency 784.5 MHz, Insertion Loss 3 dB, Rejection 30 to 35 dB. Tags: Surface Mount, Ceramic, Ceramic Filter. More details for AM784B1257 can be seen below.