The AB1487B933 from Anatech Electronics is a Band Pass Filter with Frequency 1.45 to 1.53 GHz, Bandwidth 85 MHz, Center Frequency 1487.5 MHz, Insertion Loss 0.6 dB, Upper Rejection 60 dBc @ 310-390 MHz. Tags: Module with Connectors, Cavity Filter. More details for AB1487B933 can be seen below.