The AB1300B468 from Anatech Electronics is a Band Pass Filter with Frequency 1.29 to 1.31 GHz, Bandwidth 9.5 MHz, Center Frequency 1300 MHz, Insertion Loss 2.0 dB, Upper Rejection 40 dB @ 1286 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB1300B468 can be seen below.