The AB988B929 from Anatech Electronics is a Band Pass Filter with Frequency 966 MHz to 1.01 GHz, Bandwidth 45 MHz, Center Frequency 988.5 MHz, Insertion Loss 1.8 dB, Upper Rejection 45 dBc @ 1019.5 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB988B929 can be seen below.