The ADBF 9900/50-A from ADMOTECH is a Band Pass Filter with Frequency 9.87 to 9.92 GHz, Bandwidth 50 MHz, Center Frequency 9900 MHz, Insertion Loss 1 dB, Rejection 40 dBc. Tags: Module with Connectors, Cavity Filter. More details for ADBF 9900/50-A can be seen below.