The QBF-6800-7800-40 from Qualwave is a Band Pass Filter with Frequency 6.8 to 7.8 GHz, Bandwidth 1000 MHz, Center Frequency 7300 MHz, Insertion Loss 2 dB, Upper Rejection 40 dB @8.4 GHz. Tags: Module with Connectors. More details for QBF-6800-7800-40 can be seen below.