The AB1059B930 from Anatech Electronics is a Band Pass Filter with Frequency 1.05 to 1.07 GHz, Bandwidth 18 MHz, Center Frequency 1059 MHz, Insertion Loss 2.3 dB, Upper Rejection 45 dBc @ 1082.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB1059B930 can be seen below.