The QBF-4200-7600-50 from Qualwave is a Band Pass Filter with Frequency 4.2 to 7.6 GHz, Bandwidth 3400 MHz, Center Frequency 5900 MHz, Insertion Loss 1 dB, Upper Rejection 50 [email protected] to 12 GHz. Tags: Module with Connectors. More details for QBF-4200-7600-50 can be seen below.