The QBF-2700-3300-60 from Qualwave is a Band Pass Filter with Frequency 2.7 to 3.3 GHz, Bandwidth 600 MHz, Center Frequency 3000 MHz, Insertion Loss 1.8 dB, Upper Rejection 60 [email protected] to 7 GHz. Tags: Module with Connectors. More details for QBF-2700-3300-60 can be seen below.