The AM463S149 from Anatech Electronics is a Band Pass Filter with Frequency 461.25 to 465.75 MHz, Bandwidth 4.5 MHz, Center Frequency 463.5 MHz, Insertion Loss 2.7 to 3.5 dB, Upper Rejection 50 dB 485-507 MHz. Tags: Surface Mount, RF SAW Filter. More details for AM463S149 can be seen below.