The AB1622B756 from Anatech Electronics is a Band Pass Filter with Frequency 1.62 to 1.63 GHz, Bandwidth 6.25 MHz, Center Frequency 1622.375 MHz, Insertion Loss 3.7 dB, Upper Rejection 40 dB @ 1628.375-2500 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB1622B756 can be seen below.