The AM455S470 from Anatech Electronics is a Band Pass Filter with Frequency 452.5 to 457.5 MHz, Bandwidth 5 MHz, Center Frequency 455 MHz, Insertion Loss 1.5 to 2 dB, Upper Rejection 28 dB 467.5-1500 MHz. Tags: Surface Mount, RF SAW Filter. More details for AM455S470 can be seen below.