The ADBF 4850/100-A1 from ADMOTECH is a Band Pass Filter with Frequency 4.8 to 4.9 GHz, Bandwidth 100 MHz, Center Frequency 4850 MHz, Insertion Loss 1.2 dB, Rejection 30 to 70 dBc. Tags: Module with Connectors, Cavity Filter. More details for ADBF 4850/100-A1 can be seen below.