The QBF-9000-11700-30 from Qualwave is a Band Pass Filter with Frequency 9 to 11.7 GHz, Bandwidth 2700 MHz, Center Frequency 10350 MHz, Insertion Loss 1 dB, Upper Rejection 30 to 45 dB. Tags: Module with Connectors. More details for QBF-9000-11700-30 can be seen below.