The QBF-46000-52000-50 from Qualwave is a Band Pass Filter with Frequency 46 to 52 GHz, Bandwidth 6000 MHz, Center Frequency 49000 MHz, Insertion Loss 2 dB, Lower Rejection 50 to 70 dB. Tags: Module with Connectors. More details for QBF-46000-52000-50 can be seen below.